Huawei announced a major breakthrough in itsresearch into Li-ion batteries,

Share to：

Huawei announced a major breakthrough in its research into Li-ion batteries, unveiling the world'sfirst long-lifespan graphene-assisted Li-ion batteryable to withstand high temperatures.

The announcement was made by Watt Laboratory,an organization under Huawei's Central ResearchInstitute, at the 57th Battery Symposium held inJapan.

Huawei's research results show that new graphene-based heat-resistant technologies allow Li-ion batteries to remain functional in a 60°C environment, a temperature 10°C higher thanthe existing upper limit.

The lifespan of the graphene-assisted Li-ion batteries will also be twice as long as ordinary Li-ionbatteries.

華為將推出超長壽命石墨烯基鋰離子電池

Dr. Yangxing Li, Chief Scientist at Watt Laboratory, pointed out that three technologiescontributed to the breakthrough in the graphene-assisted high-temperature Li-ion battery.

First, a special additive in the electrolytes can remove trace water and prevent theelectrolytes from evaporating in high temperatures. Second, modified large-crystal NMCmaterials are used for the cathode, improving the thermal stability of the cathode powder.Third, graphene allows for more efficient cooling of the Li-ion battery.

Dr. Li said, "We have performed charging and discharging tests in a high-temperatureenvironment. The tests show that when working parameters are the same, the graphene-assisted high-temperature Li-ion battery is 5°C cooler than ordinary Li-ion batteries."

"Over 70% of the graphene battery's capacity is left after it is recharged 2,000 times at atemperature of 60°C. Less than 13% of its capacity is lost after being kept in a 60°Cenvironment for 200 days."