Low temperature battery means the battery performanceing temperature below zero degree, its common on various areas such as military and aerospace, automotive, scientific research, communication, security & protection system, medical electronics, railways, marine, RVs, robots, etc.
Generally, it is required to meet the national standard GB31241-2014 for lithium ion batteries, "Lithium Ion Cells And Batteries Used In Portable Electronic Equipment--Safety Requirements".
So, let's share our Grepow low temperature battery.
At first, low-temperature lithium batteries are classified according to discharge performance:
(1) Low temperature lithium battery for energy storage
(2) Low temperature lithium battery for high discharging rate
Low-temperature energy storage lithium batteries are widely used in military tablet computers, paratroopers, military navigation devices, unmanned aerial vehicles, special flight power supplies, satellite signal receiving devices, marine data monitoring devices, atmospheric data monitoring devices, outdoor video. Identification equipment, petroleum exploration and testing equipment, railway monitoring equipment, outdoor power grid monitoring equipment, military warm shoes, vehicle backup power.
Low-temperature rate lithium batteries are used in infrared laser equipment, glare-type armed police equipment, and acoustic armed police equipment.
Second, low-temperature lithium batteries are divided into: military low-temperature lithium batteries, industrial low-temperature lithium batteries according to application fields.
Low-temperature lithium batteries are classified according to the use environment as follows:
1) -20℃ civilian low-temperature lithium battery: -20℃ battery 0.2C discharge accounted for more than 90% of the rated capacity; -30℃ battery 0.2C discharge accounted for more than 85% of the rated capacity
2) -40℃ special low temperature lithium battery -40℃ battery 0.2C discharge accounted for more than 80% of the rated capacity;
3) -50℃ extreme environment low temperature lithium battery -50℃ battery 0.2C discharge accounted for more than 50% of the rated capacity;
Third, according to its use environment is divided into three series: civilian low temperature battery, special low temperature battery, extreme environmental low temperature battery,
Main areas of adaptation:
Military weapons, aerospace, missile-borne vehicle equipment, polar scientific research, cold belt rescue, power communication, public safety, medical electronics, railways, ships, robots and other fields.
Talking about power lithium batteries, I believe that Grepow has brought many surprises to many RC hobbies; especially to help many model friends win the championship in various events. In terms of the model field, this is already a satisfactory transcript. For us in the industrial field, we are very stubborn! Nothing better shows the truth than a picture and video.
The low temperature battery is a special battery specially developed for the low temperature defects inherent in the performance of chemical power sources. The low temperature battery uses VGCF and activated carbon with specific surface area of (2000±500) m2/g as additive and its matched positive and negative materials. It is injected with special electrolyte with special additives to ensure the low temperature discharge function of low temperature battery and high temperature. With a volume change rate of ≦0.5% at 70℃ for 24h, it has the safety and storage function of a conventional lithium battery.
Low-temperature batteries are widely used in various electronic devices because of their light weight, high specific energy and longevity. Among them, the low-temperature battery polymer lithium ion battery has the advantages of simple packaging, easy change of the geometric shape of the battery, ultra-light and ultra-thin and high safety, and has become a power source for many mobile electronic products.
Ordinary civilian batteries can not be used at -20℃, and low temperature batteries can still be used normally at -50℃. The annual self-discharge rate is ≤1%; the storage life is more than 10 years. Low temperature batteries are currently used in temperatures of 0℃ or below. In addition to communication power, military mobile power, signal power, and small power equipment drive power supplies also need to use low-temperature batteries. These power supplies also have low-temperature performance requirements when working in the field.
Space exploration projects such as space flight and moon landing programs that are being implemented in China also require high-performance energy storage power sources, especially low-temperature batteries. Since military communication products have stricter requirements on battery characteristics, in particular, communication guarantees are required at lower temperatures. Therefore, the development of low-temperature batteries is of great significance to the development of the military and aerospace industry. Research and development of low temperature batteries is also a hot topic at home and abroad. Lithium-ion batteries outside electronic products have gradually replaced traditional cadmium-nickel batteries to become the mainstream power source in the field of military communications and the key direction for the development of new-type communication power supplies.
Grepow, which specializes in lithium iron phosphate batteries, has a normal charge and discharge capacity of -40-55℃. It can still achieve fast charging at low temperatures.
As always, Grepow is committed to the research of nickel-metal hydride, lithium battery and lithium iron phosphate battery technology, and explores and tackles the low temperature performance of batteries, especially in low-temperature lithium iron phosphate (new technology developed through long-term research and development), low temperature. Outstanding research and development results in the field of special-shaped batteries, excellent raw materials and technology to ensure the high-efficiency discharge performance of the battery at very low temperatures. With the further development of technology, lithium batteries will have further breakthroughs in low temperature environments.
The above is the knowledge about the low-temperature lithium battery that writer has compiled for you. If you want to share or have questions, please come to Grepow, we will have experts to answer your questions.