AWE EU 2019 | Grepow VR/AR Battery in Augmented World Expo

AWE (Augmented World Expo) is the world's most essential AR+VR conference and expo, with annual dates in the USA, Asia, Israel and Europe, as well as meetup chapters around the world. AWE brings together a diverse mix of CEOs, CTOs, designers, developers, creative agencies, futurists, analysts, investors, founders and top press in a one-of-a-kind opportunity to learn, inspire, partner, and experience first-hand the most exciting industry of our times.

Welcome to AWE!

AWE returns to Europe for the fourth year 17-18 October in Munich, Germany. Don't miss the world's leading spatial computing (AR/VR/MR) event series, what Forbes calls “the most essential AR+VR conference and expo,” in a unique market.

GREPOW's booth: 403

There is no platform like AWE to get thousands of eyes and hands on your product. We'll wait for you here!

Spatial computing is at a critical crossroads. Find out why this is the case globally and in Europe as industry leaders take the AWE EU stage. Hear from those sharing real-life use cases, solving major technical challenges, bringing AR/VR into new sectors, considering ethical and legal issues, promoting diversity, and working on the cutting edge of XR development. Enter the next dimension at AWE EU 2019!

Battery limitations for augmented reality glasses

One of the key areas of growth in augmented reality goggles is the enterprise space. The mobile worker – someone working in a warehouse, for instance – benefits from AR devices. The hands no longer have to hold a phone or tablet. Information is context-sensitive and appears to overlay on the real world.

These devices aim for the battery life of an 8- or 10-hour shift. But these devices are power-hungry. They have displays, communications link, onboard camera and sometimes speech recognition. Longer battery life often means installing a larger battery.

VR/AR Battery Solutions

GREPOW battery has the advantages of small internal resistance, long life, high space utilization, and high energy density after group. Because Grepow special shaped batteries are manufactured using the stacking technology .In terms of battery performance, compared with the winding technology, the stacking technology can increase the energy density of the battery by 5%, increase the cycle life by 10% and reduce the cost by 5% under the same conditions.

Grepow is able to provide curved batteries for VR/AR headsets, as well as narrow rectangle battery or trapezoid battery for industrial and smart glasses.  These batteries have a high energy density, and they are light in weight and comfortable to wear.

Why Choose Grepow VR/AR Battery Solutions

1. OEM mass production, mature manufacturing process. Physical factory supply, quality assurance, and after-sales service.
2. High energy density, high output power, high capacity, and lightweight.
3. High battery consistency, is conducive to series and parallel combination processing; can be combined according to different requirements.
4. Meet ROHS, SGS, CE, UL and other testing requirements.
5. Battery assembly method requirements can be customized according to customer requirements, custom size! Such as shaped, voltage, capacity, etc..
6. Can provide integrated power solutions according to customer requirements.

Found the Best Bluetooth Headset Battery

If you are looking for the perfect Bluetooth headset battery, you have come to the right place. Grepow specializes in customized, advanced battery technologies, which allow for greater freedom when it comes to the design and manufacturing of your Bluetooth headset. One of the main advantages of working with advanced battery manufacturers is that they have the ability to create a battery that is shaped to fit perfectly within your headset. What is even more intriguing about their capabilities is the option of including climate adaptation enhancements, which will allow the batteries to function efficiently and reliably, even in the most extreme temperatures.

I absolutely love the convenience that Bluetooth headsets provide, allowing you to move about freely as you listen to your music or podcasts, without feeling tangled up in the cables. I have searched all over the place for the perfect battery that would fit my Bluetooth headset like a charm. For me. this is very important because I love listening to my music when I go jogging in the morning, and Ido did not think I can do it without my wireless earphones.

I remember the old days of having to struggle with cables and always worrying that they would get caught on a door handle or in other places, potentially causing damage. But. with the advent of wireless technology solutions, we can all breathe a big sigh of relief knowing that we have become cord-free. The question now is whether or not you are using the right batteries for your Bluetooth headset.

Imagine, you can order batteries in various shapes to perfectly suit your needs. One example of an unusual shape request that Grepow can fulfill is an octagonal design, which requires extremely advanced, state of the art engineering. Through their pioneering innovation with regard to advanced battery manufacturing technology. Grepow has been able to master the art of battery design.

The design elements have been incorporated into modern-day. wearable technology continues to break the boundaries of what we used to think was not possible. Over many decades of dedicated research, coupled with consumer demand for lightweight, long-lasting batteries to power their mobile devices, various engineers have embarked on a mission to bring these dreams to fruition. With their determination and an endless pursuit of the highest standards of modern technology, recent breakthroughs have taken shape, in the form of batteries for Bluetooth headsets, and a multitude of other mobile devices.

The current Bluetooth headset battery solutions offer a compelling case for wider adaptation than ever before, and with their size shrinking as their power storage increases, the opportunities to incorporate this radical technology into your most creative designs have become a reality. I am also pretty certain that we have only reached the cusp of what will be possible as this technology advances even further into the future. As with pretty much every other marvel of modern electronic engineering, Bluetooth headset battery solutions is being developed at the quickest pace ever seen. The use case for batteries that can handle the abuse presented by extreme weather conditions has also seen an exponential increase, due to the consumer trend of traveling through various climates in search of thrilling adventures. All you have to do is scroll through your social media news feed or your favorite video-sharing website, and it will become apparent that the desire to visit these extreme destinations has grown substantially.

Of course, another major driving force of consumer necessity for advanced Bluetooth headset battery solutions is fashion. Gone are the days when people would wear humongous wired headsets. The consumer of today craves a much more sleek and stylish design, and will actually sacrifice sound quality for style. Younger consumers are especially prone to giving in to the desire to look cool, and will happily purchase the coolest looking, and most discreet Bluetooth headsets available on the market. The current leader in the market for wireless earpieces has solidified this very fact.

The need for more advanced battery technology does not end with consumers either. When you consider law enforcement and military use cases, it becomes even more apparent that there are multiple potential applications for adequate and sufficient Bluetooth headset battery solutions. Soldiers who must traverse through the most extreme climate situations, ranging from a hot desert to frozen tundra, require extremely durable mobile battery solutions. Additionally, astronauts if the future may also foster a necessity for progression in the advancement of these groundbreaking technologies.

One of the other areas where advanced Bluetooth headset battery solutions are needed is in the entertainment industry. The performing artists of the modern world of show business rely more on wireless ear monitor technology than ever before, as the use of full-sized stage monitors has decreased dramatically in recent decades. Besides, if an artist would like to sing a song while being suspended from the ceiling of an arena, they need to be able to hear the music from their wireless Bluetooth headset in order to produce a seamless performance for their audience. Yet another increasingly common adaptation of this feat of engineering has taken place within the healthcare industry, as medical staff usually require both of their hands to be available to perform operations and other duties. As you can see. the utilization of wireless headset technology is set to continually increase over time.

The ability for electronics design teams to customize the shape batteries used in their devices is truly invaluable, and the best company to work within your pursuit of perfection is definitely Grepow. Ever since the company was founded in 1998. the have provided superior technological innovation to the battery industry, becoming a leader in the realm of custom battery solutions. With their ability to develop everything from full-scale industrial battery solutions, and their proficiency in meeting the demands of ever-evolving consumer electronics trends. Grepow is a true stand out choice for collaboration with regards to your technology designs.

If you are interested in customizing Bluetooth headset battery solutions, please don’t hesitate to contact us at any time!
Email: info@grepow.com
Grepow Website: https://www.grepow.com/

EWTS 2019 | Grepow Provides Shaped Batteries for AR/VR and Wearables

The Enterprise Wearable Technology Summit (EWTS) is the longest-running and most comprehensive event dedicated to the business and industrial applications for wearables; including smart glasses and other HMDs, Augmented/Virtual/Mixed Reality, body-worn sensors, wrist wearables, and exoskeletons.

AR/VR and Wearables Drive ROI for Your Business

Consisting of real-world case studies and expert-led group discussions, EWTS is where enterprises go to hear insights from leading enterprise experts as to the best practices for effective evaluation, adoption, and implementation of AR, VR, and wearables in the workplace.

Try Out and Put On the Top Enterprise AR/VR and Wearable Solutions

With the largest targeted expo for enterprise smart glasses, VR headsets, body wearables and exoskeletons, EWTS is your best opportunity to get hands-on with hardware and software solutions ready to be deployed in your organization today.

Unlock the Potential AR/VR and Wearables Holds for Your Business

If you want to learn how enterprises are leveraging AR, VR, and wearables to improve customer experience, workflow operations, product development, safety, training and more, there is no other event as relevant and focused as EWTS.

AR/VR Headset Battery Solutions

Grepow is able to provide curved batteries for VR/AR headsets, as well as narrow rectangular or trapezoid cells for industrial and smart glasses.  These batteries have a high energy density, and they are light in weight and comfortable to wear. Grepow has been researching developing and manufacturing lithium polymer batteries for more than 10 years. We are the industry-leading manufacturer of lithium polymer batteries in China. Special technologies and manufacturing experience help us produce safe curved cell LiPo batteries that maintain a stable working voltage and capacity. We can customize a curved battery to fit your requirements.

Wearable Battery Solutions

Grepow research develop design and produce custom shaped LiPO batteries. We are the industry leading manufacturer of custom shaped wearable batteries. From our inception we have been cooperating with many of the top 500 companies in the world.

Why Choose Grepow Battery Solutions

• OEM mass production, mature manufacturing process. Physical factory supply, quality assurance, and after-sales service.
• High energy density, high output power, high capacity, and lightweight.
• High battery consistency, is conducive to series and parallel combination processing; can be combined according to different requirements.
• Meet ROHS, SGS, CE, UL and other testing requirements.
• Battery assembly method requirements can be customized according to customer requirements, custom size! Such as shaped, voltage, capacity, etc..
• Can provide integrated power solutions according to customer requirements.

For more information, please email us: Info@grepow.com

How do I find battery for wearable device?

I have been searching all over the best for the best wearable battery solution, I mean literally all year long. I can’t believe that I have actually found something that is finally the best for not only my smartwatch, but also my Bluetooth headset battery, and my VR battery. I started using all of the smart devices a few years ago, and I can tell you from personal experience that the first generation of batteries for the pretty awesome, mini devices was just not up to par with the many demands of daily life. In retrospect, they barely had decent smart glass battery options that could power my devices for a full day even two or three years ago.

So initially, I began to search for the many top options and alternatives that could continuously power these devices for me, and allow me to go about my day without constantly worrying about whether or not my smartwatch battery was going to last, or if it was just going to die on me before I had a chance to get home or to a place where I could connect the charger again. It was really just a challenge every day, especially since, unlike the more traditional types of analog watches out there at the high-end jewelry stores, they still have not figured out a way to let the watches charge themselves through some sort of kinetic battery charging mechanism already being contained within the watch. And, do not even get me started on the VR batterychoices because they are nowhere close to being even remotely reliable for what I would need them to be able to endure on a daily basis.

Now when I consider the Bluetooth headset battery choices I recount the instances of searching all over every mall and even all of the web sites in order to find a decent battery choice. It is nearly unfathomable to think that one would be able to find a remedy for a completely discharged VR battery, and the smartwatch battery shopping outlets do not usually carry the most varied array of options for every person’s individual tastes or needs. If you are like me, then you are probably making use of your smartwatch or VR battery almost all day long with very little time for your devices to recover or even for them to charge. Sometimes, I wish there were a solar-powered or kinetically powered option that would maintain its own battery without the need for me to take it off, or to stop being able to use it during the time that it must remain plugged into the charging cable or the mounting dock.

One of the most exciting innovations of our current day and age is the development of the smart glass batteryand all of the custom and bespoke devices that use this super-advanced type of electrical power storage technology. It is not unlikely that even this most desirable type of smartwatch battery tech will not one day be succeeded by a type of tech that may become even more popular than the current trend in mobile power, but it is probably a type of consumer staple that will remain intertwined in our day to day lives for many more years, and likely even a couple of decades, to come. We will have yet to see if this is the type of widely adopted tech that will stand the test of time, or if it will be something that we move so far away from using in the future that we all but forget about its existence at this moment in time.

As our society has progressed and evolved in ways that we barely could have fathomed even just a couple of short years ago, we have slowly but surely become more mobile with almost every aspect of our lives. People are shopping for groceries from tiny screens on their wrists in our modern society, and it is because of things like this that we need the most reliable smartwatch battery technology to keep our mobile devices powered up for long periods of time. I have even seen people taking classes, or completing assignments for their jobs on these various mobile devices, and the battery technology is really the backbone of the infrastructure that allows this to happen for them. The days of lugging around a heavy and bulky laptop computer, along with all of the charging and ethernet cables that come along with it will probably soon be far behind us.

I even sometimes think back over the chronology of the evolution of the mobile phone, and it is quite astonishing just how far we have come from having a cellular telephone permanently installed in the body of our cars, to now being able to have completely handed free conversations from almost anywhere we choose to with a device as small as a watch or even an earphone! Production has also been streamlined to handle the massive amounts of public demands for all of the different electronic mobile computing devices that every person wants to have as part of their collection.

If you really take a moment to think about wearable battery, a Bluetooth headset battery or even a VR battery was not one of the things we would have had on our shopping list the year before last. Custom shaped batteries to fit into any and all available space in your product for maximum efficiency. Any shape is possible, Grepow can now offer shaped batteries from 8mm to as thin as 0.4mm. By utilizing Grepow’s proprietary formula in custom shaped cells, it will empower you against your competition. Grepow’s high discharge rate technology and fast charging capabilities will allow you to overpower your competitors and lower downtime between uses.

This is further evidence that times are changing, and you should really think about starting to look for ways in which you can become more mobile with your communications and technology so that you can maintain a competitive advantage among all of our tech-savvy peers. Never before in our entire history has there been a time when we had to consider all of the mobile battery options or even the duration of our mobile battery power supply. The evolution is only going to continue, and the technology will only become more and more efficient and reliable as we progress into the future.

If you are interested in our products, please don’t hesitate to contact us at any time!
Email: info@grepow.com
Grepow Website: https://www.grepow.com/

Development trend of lithium polymer battery manufacturers

Why are lithium polymer battery manufacturers getting more attention? Lithium polymer batteries have matured and commercialized in the world for many years. Although the sales volume is growing rapidly, it’s market share is still less than 10%, which is incomparable with the market share of lithium-ion batteries of 90%. This is much lower than people’s expectations. For various reasons, the price of lithium polymers on the market is generally higher than the price of lithium-ion. However, because the competition mode of mobile appliances is quietly changing, especially the design value innovation brought by polymer batteries to mobile appliances (such as the superior performance of 4.5mm thickness, large-size battery). The polymer batteries are being recognized by more and more designers such as mobile phones and wearable devices.

The development trend of lithium polymer batteries can be seen from the development of mobile phones. At present, mobile phones have the following development trends:

(1) The mobile phone itself is developing in the direction of miniaturization and ultra-thinness to facilitate the carrying of consumers;

(2) The personalization of mobile phone design. It is no longer the original square shape. It can be irregular shape, curved and curved surface design shape has become the mainstream of mobile phone design aesthetics;

(3) The use of color screens and smart functions continues to increase.

In order to miniaturize the mobile phone, reduce the size of the battery is the most effective way. Ultra-thin batteries have become the mainstream trend in thin-type mobile phone configurations. The effective space left by the mobile phone with an irregular shape, curve, and curved surface design becomes an irregular shape. While the lithium-ion batteries can not make efficient use of space, the laminated lithium polymer battery can make the most efficient use of this irregular space to enlarge the capacity.

The round batteries, trapezoidal batteries, and backpack batteries of Grepow lithium polymer battery manufacturer can increase the capacity of equipment by more than 50% compared to the lithium-ion batteries of the corresponding specifications. Wearable devices are becoming more and more functional, resulting in more and more power consumption. The battery capacity is required to increase accordingly. Grepow lithium polymer batteries offer significant advantages without increasing battery thickness.

Similarly, laptops, Bluetooth headsets, and other appliances are becoming more portable, all equipped with LCD. And the functions are increasing as well as the size of the LCD screen. These provide unlimited business opportunities for the Lithium polymer battery manufacturers.

Market research firm Frost & Sullivan expects that the global market for lithium polymer battery will grow substantially in the future. Frost & Sullivan’s analysis pointed out that the increase in energy density and light weight of lithium polymer batteries is the key to future demand expansion. In particular, the market expansion of “small accessories” for ordinary consumers who can perform multitasking in recent years has increased the demand for lithium polymer batteries having high energy density and low weight.

In addition, the increased demand for industrial portable devices equipped with energy-efficient batteries will also drive the growth of the lithium polymer battery market. Recognizing the benefits of using lithium polymer batteries in consumer products, it is expected that usage in industrial equipment will increase. The market for lithium polymer batteries for consumer products is expected to mature, and the market for industry and automotive will continue to grow in the next five to seven years.

Flexible Battery for Wearable Electronics

With the advancement of technology and the arrival of the intelligent wave, smart wearable devices are also developing rapidly. As a key component of new equipment, the flexible battery has received more and more attention. The flexible lithium-ion battery has achieved substantial development and can provide more power for smart devices.

The importance of developing flexible batteries

In the past few years, smart wearable devices have witnessed rapid development. Its form has also become more diverse, from the original smartphone to the current smartwatches, smart bracelets, smart glasses, smart running shoes and so on. Smart wearable devices have become more and more popular with consumers, and many people are used to the existence of smart wearable devices and cannot get rid of them.

Smart wearable devices want to grow further but are limited by the speed of battery development. Therefore, it is particularly important to develop smaller, lighter and thinner lithium-ion batteries. Compared with other lithium battery systems, the research and development of lithium-ion batteries are more mature, and flexible lithium ion battery is also the most likely to be the first flexible system to be promoted and applied.

As we all know, whether it is wearable devices or other smart products, the importance of batteries is beyond doubt. Nowadays, wearable device manufacturers are eager to solve some of the problems of wearable batteries, such as endurance, charging speed and adaptability.

Achieve the improvement of battery life

Due to the size limitation of the wearable device itself, the battery for the wearable device is also generally irregular. In principle, most current collectors of wearable devices are made of materials with high conductivity and polymers with good tensile properties.

This new battery can be used in a variety of irregular electronic products. The battery fits the wearable device in various shapes, making full use of the space of the wearable device, increasing the energy density of the battery, and providing more power to the smart device. Therefore, it can be used to solve the bottleneck problem of the current wearable device battery.

Flexible lithium batteries are safer

It is worth mentioning that this amazing flexible lithium battery is safer and less dangerous. The original intention to develop this flexible battery is that the flexible battery can maintain its original performance while being stretched, which is safe and reliable. It is expected to be widely used in wearable devices and become the core technology for solving the current wearable energy storage device.

There is no doubt that flexible batteries are in a stage of vigorous development, and its technological breakthrough is bound to open a new chapter in electronic devices. When such flexible batteries become commercially available, they could disrupt the wearables industry. If you’re looking to expand into wearable devices, Grepow can help you solve the problem of wearable battery mass production.

Novel Battery Can be Customized in All Shapes

To say innovation, I am afraid that no industry can be compared with the electronics industry. The development of electronic products is beyond imagination, and since its inception, it has been the eye of consumers.

When it comes to electronic products, for example, wearable electronic products are popular in the market, such as heat coat, insoles, bracelet and so on. All this is not to forget the lithium batteries: most wearable electronics are powered by lithium batteries. The lithium battery that we use on electronic products before, the general quality of a material is hard, the shape is unified, It makes people uncomfortable when they use it. So how do we solve this problem?

Novel batteries were mentioned

For this shortboard of lithium batteries, the novel shaped battery independently developed by Grepow is a perfect complement. Shaped batteries are an important part of the new energy wave.

A shaped battery is composed of a packing film, a positive electrode piece, a negative electrode piece, an insulating membrane, a polar ear, and an electrolyte. The positive and negative ears of the battery group may be arranged on the same or different sides of the battery group.

Every shape is possible

At this stage, in order to highlight their own characteristics, various smart device manufacturers will design their own products into different shapes. At this time, there will be corresponding requirements for the shape of the battery. Shaped batteries can solve the corresponding problems through different shapes. At present, the existing Grepow novel shaped lithium battery includes the following types:

●Rectangle Battery●Ultra Thin Battery●Bendable batteries●Round Lipo Battery●Triangle Battery●Hexagon Battery●Ultra Narrow Battery●C Shape Battery●D Shape Battery●Polygonal Battery

Ultra-high safety performance

The deformation test conducted by the Grepow team proved that the shaped lithium battery has high mechanical stability, durability, and safety. The battery has been tested repeatedly, twisted at different angles, and its voltage performance is not compromised. It also proves that the battery can provide stable power for electronic components without the risk of fire or burst.

Grepow has passed the IS09001 quality system certification, and the products meet the requirements of ROHS, CE, UL, Reach, UN38. 3, MSDS and other certifications.

Make the most of your equipment space

One of the biggest features of the shaped battery is that it can meet the space problem of the smart electronic product as much as possible. Due to the miniaturization and light weight of these products, space will be compressed as much as possible, of course, the smaller the better. Shaped batteries can solve this problem very well.

A typical bendable battery can only be bent to a radius of about 25 mm. Griffon’s shaped lithium battery can be bent to R20 mm, with high energy density and excellent softness.

Compared with traditional lithium batteries, Grepow’s shaped battery adopts unique technology, professional lamination process, flexible shape, adjustable, small arc, ultra-thin, large capacity, thickness up to 0.4 mm, ultra-narrow to 6 mm.

Novel shaped battery with long battery life

Generally speaking, the larger the battery, the larger the capacity and the longer the battery life. However, the shaped battery is a small existence, and the battery life problem becomes the biggest problem. Grepow solves the problem of the battery life of the shaped battery with its own core technology.

Depending on the size of the battery, it can be controlled between 22mAh ~ 3450mAh and can be evaluated and customized according to customer needs. High battery discharge platform, high capacity density, high energy density, low heat generation, better cycle performance, higher performance quality, and safer use reliability.

We have the ability to tailor the right battery application for our customers. To maximize the use of product space, perfectly match small (ultra-small) portable electronics to maximize battery capacity. Supports high voltages from 4.2V to 4.4V. When using 0.5C, cycle life is more than 1000 times. You can also design PCM to meet customer needs.

Wide range of operating temperatures

It can be used normally in a high-temperature battery environment of 20~80 °C, or it can be specially designed for low-temperature battery -40 °C~50 °C. Of course, it can also be evaluated and customized according to customer needs.

In addition to providing a stable, durable and safe energy supply for wearable electronic products, it can also be applied to medical health monitoring equipment, communications, electronic gifts, 3C digital products, smart intercom reading pens, microphone cards, bank cards, Smart cards, information cards, heating suits, smart shoes, portable sensors, smart labels, micro-speakers, tracking devices and military fields.

Grepow is a reliable battery company. It not only has advanced development concepts, good corporate culture but also has 20 years of mature R&D experience, which guarantees the company’s sustainable development and wins the trust and support of many consumers. Grepow is one step ahead in the development of novel battery and is relatively mature.

If you are interested in our products, please don’t hesitate to contact us at any time!
Email: info@grepow.com
Grepow Website: https://www.grepow.com/

Main Factors Affecting lithium batteries at low temperature

Lithium-ion batteries have the advantages of high operating voltage, high specific energy, long charge and discharge life, low self-discharge rate, and no memory effect. They are dominant in the global secondary battery market and have a wider range of applications, including portable electronic devices. Commercial markets such as industrial applications and power tools. The low temperature battery is widely used. Lithium-ion batteries will gradually become the protagonists in those areas where battery performance, reliability, and safety are high, such as aviation, aerospace, and military.

However, the low-temperature performance of a lithium-ion battery, especially in a low-temperature environment below 30℃, is poor, which inhibits its application in special fields. In recent years, the low-temperature performance of the lithium-ion battery has been studied. This paper summarizes the influence factors of the low-temperature performance of the lithium-ion battery.

The effect of electrolyte

The electrolyte is an important part of the lithium-ion battery. The positive and negative electrodes in the battery are responsible for the transfer of ions. Generally, a non-aqueous organic solvent mixture in which a lithium salt is dissolved is used. Ethylene carbonate (EC), propylene carbonate (PC), dimethyl carbonate (DMC), diethyl carbonate (DEC), ethyl methyl carbonate (EMC), etc. are currently widely used in lithium-ion battery electrolytes. The organic solvent in. The effect of electrolyte on low-temperature performance is mainly reflected in its influence on conductivity and solid electrolyte phase interface (SEI) membrane properties.

(1) Conductivity

Conductivity is an important parameter to measure the performance of the electrolyte. It determines the internal resistance and rate characteristics of the electrode. Higher conductivity is a necessary condition for achieving the good low-temperature performance of the lithium-ion battery.

(2) SEI film

The composition of the electrolyte not only determines the ionic conductivity of the LR electrolyte but also the formation of the SEI film. The properties of the SEI film, such as pore porosity, electron, and ionic conductivity, the irreversible capacity of the battery, low-temperature performance, cycle performance, and safety performance Have an important impact.

Effect of electrode material granularity 

The charging and discharging process of the lithium-ion battery includes the transfer process of lithium-ions in three kinds of materials such as graphite nanoparticles, oxides, and subdivided materials, and the particle size of positive and negative materials is generally between 5 and 1.5 jam, which reduces lithium. The diffusion length of ions, but because the solid phase diffusion coefficient of lithium-ions in the electrode material is small, such as the diffusion coefficient of graphite anode material is about 10cm2 / s, the diffusion coefficient of spinel LiMnO elongated material is about 10 ClTI / s. The in-phase diffusion of lithium-ions in the electrode material towel will affect the discharge behavior of the battery.

Under low-temperature conditions, the discharge of the battery is reduced, indicating that the polarization of the inner and outer layers of the positive and negative particles is increased, that is, the transmission impedance of the positive and negative solid particles of the lithium-ion is increased, resulting in the discharge cell voltage reaching the discharge termination voltage too early. The discharge capacity is also reduced accordingly.

It was found in the study that the insertion/extraction process of lithium-ions is asymmetrical under low-temperature conditions. For fully charged graphite electrodes, it is relatively easy to release the embedded lithium-ions below -20 ° C. However, at the same temperature, for the fully-released graphite, the lithium-ions are severely hindered.

The authors believe that the asymmetric process is caused by the diffusion of lithium-ions inside the graphite. By reducing the particle size of the electrode material, the low-temperature performance of the battery is significantly improved.

The effect of charge transfer resistance

The charging and discharging process of the lithium-ion battery includes the process of charge transfer of lithium-ions in the solid phase liquid phase, and also includes the charge transfer process at the electrode/electrolyte interface. The size of the resistance of the process is called charge transfer resistance. Reaction resistance.

The larger the electrochemical reaction resistance, the less likely the electrochemical reaction is to proceed, or the same current is generated. The greater the electrochemical reaction resistance, the larger the overpotential required, that is, the greater the driving force required. The low-temperature performance of lithium-ion batteries was studied using anode and cathode symmetric batteries, respectively.

The SEI film resistance, the interface charge transfer resistance and the diffusion coefficient inside the lithium-ion storage electrode may become the main factors affecting the low-temperature performance of the potassium ion battery in a specific system. In addition, such as electrode surface area and porosity, electrode density and thickness, binder affinity to the electrolyte, membrane porosity and wettability, etc., these factors may become the low-temperature performance of lithium-ion batteries under special circumstances. major factor.

Low-temperature battery features

This paper summarizes the research on electrolytes, electrode materials, and electrochemical reactions, and summarizes the factors affecting the low-temperature performance of lithium-ion batteries. Due to the advantages of the lithium-ion battery itself, it is extremely advantageous for the aerospace, aviation, and military fields. The tempting and low-temperature performance of Grepow low-temperature battery is greatly improved compared with the normal temperature battery, and it has been successfully applied in the aerospace field, which will greatly reduce the cost; the application in the military field can promote the development of weapons in a flexible and maneuverable direction.

Grepow low temperature shaped battery operating environment in the low-temperature range -40℃ to 50℃. The low-temperature shaped battery is a kind of special battery specially developed by Grepow, to overcome low-temperature defects inherent in the performance of chemical power supply. Grepow low temperature shaped battery adopts an innovative design concept, advanced formulation system and materials, rigorous process manufacturing process and method, and overcomes many technical bottlenecks to develop low-temperature lithium battery series.

Under low temperature, the capacity of Grepow’s low temperature shaped battery still over 80% by 0.2C discharge at -30 °C. This is also one of the core technologies of Grepow, which has more advantages than normal batteries.

If you are interested in our products, please don’t hesitate to contact us at any time!
Email: info@grepow.com
Grepow Website: https://www.grepow.com/