Extend the Life of Standard Lithium-ion Battery

 

In today’s mobile world, standard lithium-ion batteries are used in a myriad of situations, and battery life comes to be precious. It can be especially annoying when a mobile device has to be charged in a public place with only one available outlet.

There are many reports on how to save battery power, but what can we do to extend battery life? Here are a few ways that Grepow has you covered.

Keep the battery at room temperature

Store the battery between 20 to 25℃. During the charging process, the temperature of the battery will increase due to the electric current. Therefore, do not leave your battery in the car or charge it if the temperature inside the car is too high. Heat is the biggest factor in shortening the life of a lithium battery.

Consider purchasing a high-capacity rectangle lithium battery

Standard rectangular rechargeable batteries will degrade over time regardless of whether they are used or not. As a result, spare batteries will not last longer than batteries in use. When purchasing a battery, be sure to ask about the latest manufacturing date of the product.

rectangular pouch batteries

Avoid completely discharging the lithium battery

If the discharge voltage of each cell of a standard lithium-ion battery falls below 2.5V, the safety circuit built into the battery will break, and the battery will appear to be depleted. For safety reasons, do not charge an over-discharged lithium-ion battery if it has been stored under these conditions.

Lithium-ion polymer batteries charging

If you are storing the lithium batteries for an extended period of time, store them at a storage charge in a cool place. Only by storing the battery properly can excessive power consumption be minimized and the life of the battery extended.

Stay tuned for more battery technology or visit Grepow’s Website now: https://www.grepow.com/

What are the advantages of the soft pack rectangle battery?

 

rectangular pouch batteries

The main advantages of rectangular pouch batteries are their thin profile and efficient use of space. The slim rectangular shape adds to better layering and increased flexibility, and they are commonly found in a variety of small electronic devices.

Table of Contents

8 Advantages of choosing rectangular batteries

Li-ion battery pack flexibility

This is a fully assembled battery pack with a built-in BMS as the standard battery module. The modules are assembled in a parallel configuration to increase capacity and in a series, configuration to increase voltage. The built-in BMS can provide an output cable for communication.

Long cycle life

We randomly selected a rectangular pouch cell from our production line. After constant cycling and equivalent acceleration of more than 4400 charging cycles, the 10Ah battery still recorded about 9Ah. After repeated charging, the battery capacity was only reduced by about 10%.

Reliability

When one rectangular pouch battery fails, the other rectangular pouch battery can simply take over. When you replace a single faulty rectangular pouch battery, the rest of the system can continue to operate normally, thus improving system reliability.

Improved energy storage

Compared to a cylindrical battery, a soft-packed rectangular battery has a much larger capacity to store energy in a given physical space.

Battery cell Stacking vs Winding Techonology

Safety

When a cylindrical cell has internal problems, the pressure increases and expands. In those uncommon instances, a soft-packed rectangular battery will only expand.

On the other hand, cylindrical batteries are housed in a steel sleeve. When pressure builds up in a cylindrical battery, the end of the cylindrical battery will be secured by another battery or case and may explode, thus posing a safety hazard.

Weight

Generally, the weight of a soft-pack rectangular battery is less than the weight of an equivalent cylindrical battery. Flat soft-pack rectangular cells have a greater energy density than other battery shapes, but they are also much more difficult to manufacture. For this reason, soft-pack rectangular batteries are one of the best products to test a battery manufacturer‘s production capabilities and techniques.

Consistency Rectangular Pouch Batteries

GREPOW‘s entire line of pouch rectangular cells are manufactured on automated equipment using stacking technology. The cells are manually tested to ensure that each cell is up to par, eliminating human error in manual cells and making each cell uniform.

GREPOW lithium battery stacking technology processes

The growing trend of rectangular pouch batteries

As the economy grows, the utilization of soft-packed rectangular batteries continues to rise. Low internal resistance and long battery life reduce the additional cost of battery replacements for customers, which makes these batteries ideal for wearables, smartphones, speakers, and other 3C products.

There is also a growing interest in the safety and energy-density benefits of pouch batteries. The penetration rate of soft-pack batteries in more areas will gradually come to increase.

If you are interested in our products, please don’t hesitate to contact us:

Email: info@grepow.com

Grepow Website: https://www.grepow.com/

Novel Batteries are Needed in this 5G Era

 

5G era

I believe that many people have encountered the embarrassing situation of insufficient mobile phone battery power and unable to find a place to recharge when they were out for fun or shopping.

With the advent of the 5G communication era, a new generation of consumer electronic products is developing rapidly. Behind the innovation of high-speed, large-capacity, and low-latency communication technology, the demand for equipment carrying power will also increase.

So, in the face of the current rising demand for power-carrying equipment, what new research developments are there in lithium battery technology suitable for consumer electronic devices? Where will the future direction of battery technology innovation go?

Next, GREPOW Battery will share with you the challenges and subversions of consumer electronic battery technology brought about by the arrival of the 5G communication era.

the IoT is inseparable from strong “power” in the 5G era

Tablet computers, Bluetooth speakers, smartphones, consumer robots… the types of consumer electronic products continue to increase. On the one hand, the emergence of these consumer products brings people a real and convenient experience; on the other hand, people will often The actual users who have seen such products complain that the products are unsatisfactory in one way or another.

Smartphones in the 5G era

The advent of the 5G era is not just about changing network speeds as simple as a series of power support systems. If the Internet connects people and things more closely, then the arrival of the 5G era will not only increase the speed of this connection but also enable basic coordination between things.

The mobile phone is out of power and meets an emergency. At this time, we especially hope to have a mobile phone battery with a lot of power. At present, most of the batteries used in mobile electronic products such as mobile phones and tablet computers on the market are mostly lithium-ion batteries. Although designers have been using various methods to increase the capacity of the batteries, they are in line with the rapid innovation of consumer electronics. Compared, it still makes people feel more exhausted.

The 5G era of the Internet of Everything will undoubtedly drive the demand for hardware performance of various mobile devices, including mobile phones, wearable electronic products, Internet of Things devices, drones, and so on. In this context, whether the battery’s endurance can support the high-speed computing demand brought by 5G will be an important issue worthy of attention.

smart wearable devices

Industrial innovation requires novel batteries

Currently, the more mature battery in the 3c market is lithium cobalt oxide, which is also the most widely used cathode material in the consumer electronics market. At present, the mainstream commercial lithium battery cathode materials on the market mainly include lithium cobalt oxide, lithium manganate, lithium iron phosphate, ternary materials (lithium nickel cobalt manganate, lithium nickel cobalt aluminate), etc. The latter three main requirements In power batteries, lithium cobalt oxide is more used in consumer electronics.

For consumer electronic batteries, the input and output performance of lithium-ion batteries mainly depends on the structure and performance of the internal materials of the battery, including negative electrode materials, electrolytes, separators, and positive electrode materials. The lithium cobalt oxide battery has the advantages of high specific gravity, high volume, and high energy density, so it has become the best choice for consumer electronic products.

However, with the advent of the 5G era, consumer electronics products continue to introduce new ones, and peoples demand for battery capacity is also rising linearly, requiring battery products with greater flexibility, longer running time, lower cost, and higher Security. The characteristics of consumer electronic devices have also put forward more stringent requirements on the new generation of battery technology. The contradiction between the continuous miniaturization of the volume and the battery capacity, the contradiction between the charging and discharging speed and the number of charging and discharging, etc. are all urgently needed to be resolved. The problem.

For companies, in addition to working hard on the stability and service life of batteries under the current technical framework, they also need to have a forward-looking sense of technological revolution and continue to increase the exploration and research of new materials and novel battery technologies. Be invincible when 5G comes.

specail thin novel batteries

In addition, as the new consumer electronics industry represented by wearable devices continues to increase, the demand for consumer lithium batteries is also increasing. Wearable devices usually use solid-state lithium battery ultra-thin battery technology. The technology and craftsmanship are basically mature, such as wearable devices such as bank cards, VR, and bracelets. According to the forecast of iiMedia Consulting, the demand for lithium batteries in the VR industry alone is expected to exceed 55 billion yuan by 2020.

Revolutionary battery technology

When it comes to the future of consumer lithium batteries, there will be two major development trends: one is technological innovation, such as increasing research on the replacement of positive and negative materials, to meet the dual requirements of consumer users for battery volume and capacity; the second is safety Performance requires a more cautious attitude when new high-capacity, high-density battery technologies move from the laboratory to the commercial market.

At present, in order to meet the user’s demand for battery life indicators on the market, the current consumer electronics merchants themselves are also trying to improve the battery experience from many aspects, such as fast charging technology. GREPOW batteries have excellent performance in this area and can be achieved 3C and 5C fast charge.

GREPOW novel shaped batteries

Fast charging technology uses a high-voltage current. By increasing the charging voltage, the charging rate of the device is finally increased, thereby shortening the charging time of the device, and thus the charging speed has been significantly improved.

In addition to fast charging technology, GREPOW’s new novel shaped batteries can be customized according to your device. The special shape can make full use of the space of the device, thereby increasing the battery capacity.

With the advent of the 5G era, high-definition audio-visual calls and high-power IoT applications will inevitably add unimaginable pressure to consumer electronics such as mobile phones. On the eve of the urgent need for systematic changes in battery technology, in addition to the fast-charging technology and special-shaped novel batteries just mentioned, it is also necessary to try new models to solve the problem of device battery life.

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/

How are Specialty LiPo Batteries Made?

 specail thin Shaped Battery

Grepow’s Lithium-ion polymer (LiPo) batteries can be specially made to be ultra-small, curved, and ultra-thin–the possibilities are endless! With factories in China that specialize in battery production, Grepow has only continued to grow and work to keep to the high performance expected of its batteries.

We will briefly explore some aspects of the production method of how thesespecialty LiPo batteriesare made at Grepow’s factories.

custom battery manufactures

Temperature and humidity

In South China, the temperatures and humidity levels tend to be high, so it is especially important to strictly regulate the temperature and humidity of the production workshop. There are certain requirements that must be met by Grepow’s batteries, and these vary depending on the requirements of each cell and design. Some examples include performing under extremely high or low temperatures or fast charging.

Air conditioners and dehumidifiers must also be set in the factories.  These machines run for a longer period of time particularly when the electrodes are baked so as to remove any excess moisture.  Low-power industrial dehumidifiers are used during the liquid injection process.

Moreover, our factories are equipped with large-scale industrial dehumidifiers manufactured in Switzerland. Each workshop is thoroughly sealed, and the temperature and humidity are centrally controlled. The cost of only one floor of the workshop is 10 times that of an ordinaryLiPo batteryproduction workshop.

Blender

The battery materials need to be stirred evenly without any air bubbles.  Grepow goes a step forward by continuing to maintain the humidity and temperature during high-speed mixing.

battery manufacture Blender

Coating machine

GrepowLiPo batteries must have strong endurance and uniform capacity. This depends on the material coating on both sides of the cathodes and anodes being uniform.

Battery Cell Stacking Process Coating machine

Roller

In order to further ensure the consistency of battery life and capacity, it is necessary to further increase the energy density of the cathodes and anodes.

Two pairs of large rollers weigh 12 tons. Under the control of the computer, the gap between the two wheels can be adjusted at any time. The thickness error of the extruded film is 0.0001 mm, ensuring that each battery has the same high capacity density.

After Grepow batteries are produced, they must not only undergo high-temperature aging but also withstand 95% relative humidity at high temperatures. Our engineers also carry out multiple safety tests before packing items for shipment.

Feel free to look through our myriad of specialty items: our high- or low-temperature battery, our quick-charge battery, ourspecial-shaped batteries, and many more!

If you are interested in any Grepow specialty batteries, contact us atinfo@grepow.com.

Introduction to the Best Round-shaped Lithium Batteries

 

round power

There are mainly three types of round lithium batteries: steel-shell cylindrical batteries, steel-shell button-type batteries, and soft-pack round batteries. Each battery has its advantages and disadvantages and applications, which we will explore in this article.


Steel shell cylindrical lithium battery


The advantage of this type of lithium-ion battery is that the manufacturing cost is relatively low, the production technology is relatively developed, the industry threshold is low, and the traditional winding process is used.

As for its disadvantages,  its energy density is lower than that of soft-pack lithium batteries, and it takes up more product design space, so the applications are mostly for larger battery products.  Cylindrical lithium batteries also have certain restrictions in height.

Cylindrical lithium batteries

Many electrical appliances currently use cylindrical lithium batteries, of which 18650 lithium-ion batteries are the most widely used.

Steel shell round button lithium battery

A common disposable round button lithium battery is a lithium manganese battery (code C) that has a nominal voltage of 3V. Another less common type of disposable lithium battery is a lithium-carbon fluoride battery (code B) that also has a nominal voltage of 3V. There is a commonly used secondary round button lithium battery, which is the ML lithium battery (code ML) with a nominal voltage of 3V.

The number of these round button lithium batteries correlates to the size of the batteries according to the numbering method of the IEC: the first two digits refer to the diameter (mm), and the last two digits refer to the thickness (mm). For example, the approximate size of the CR2032 is 20mm in diameter and 3.2mm in thickness.

Because of its small size, round button batteries have been widely used in various miniature electronic products ranging from 4.8mm to 30mm in diameter and 1.0mm to 7.7mm in thickness.

round button lithium battery

They are generally used as a backup power supply for various electronic products, such as computer motherboards, electronic watches, electronic dictionaries, electronic scales, remote controls, electric toys, cardiac pacemakers, electronic hearing aids, counters, cameras, and many more.

Button batteries are also divided into two categories: chemical batteries and physical batteries. Chemical batteries are the most common.

These batteries are made of stainless steel material that serves as the positive electrode. The negative electrode is a stainless steel circular cover. There is a sealing ring between the positive electrode and the negative electrode for insulation. The sealing ring, made of nylon, can prevent electrolyte leakage while providing insulation.

Aluminum plastic film soft pack round lithium battery

The soft-packed round lithium battery belongs to the polymer lithium battery. It adopts a laminated production process and has a higher energy density than the first two types of batteries. At the same time, it is more flexible in terms of thinness and size.

At present, Grepow lithium batteries can achieve a thickness of 0.4mm that is widely used in compact wearable devices.

Round Lithium Polymer Batteries

The soft-packed round lithium battery can withstand a certain degree of bending and deformation, which is not possible with the first two batteries. Under the same battery capacity requirements, the soft-packed lithium battery can be made smaller and lighter, allowing it to more efficiently use the valuable space in smart wearable electronic devices.

However, the production and manufacturing costs of soft-packed round lithium batteries are higher than the previous two, so the price can be expensive.

Through the above comparison, it is impossible to generalize which round lithium battery is the best. This depends on the products that they are intended for.

Who is Grepow?

Grepow was established in 1998, and it focuses on battery manufacturing technology, safe and stable power sources, strong endurance, long-lasting power, high charging conversion rate, long service life, and production qualifications.

The following is a partial round lithium polymer battery model list of GREPOW:

Model No.VoltageC-rate CapacityThicknessWidthLength
GRP55450434.2 V1 C1020 mAh5.5 mm45 mm43 mm
GRP75500404.2 V1 C1500 mAh7.5 mm50 mm40 mm
GRP70420304.2 V3 C835 mAh7.0 mm42.55 mm30.56 mm
GRP60350334.2 V1 C645 mAh6.0 mm35 mm33 mm
GRP35300274.2 V1 C220 mAh3.5 mm30 mm27 mm
GRP40350304.35 V1 C380 mAh4 mm35 mm30 mm
GRP25300274.2 V1 C135 mAh2.5 mm30 mm27 mm
GRP25300274.35 V1 C145 mAh2.5 mm30 mm27 mm
GRP30300274.2 V1 C170 mAh3.0 mm30 mm27 mm
GRP30300274.2 V15C140 mAh3.0 mm30 mm27 mm
GRP35300274.2 V1 C210 mAh3.5 mm30 mm27 mm
GRP35350354.2 V1 C225 mAh3.5 mm35 mm35 mm

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/