Just yesterday, Huawei announced their latest breakthrough in their website of a breakthrough in Li-ion batteries, unveiling the world's first long-lifespan graphene-assisted Li-ion battery that is able to withstand hot environments.
A discovery made by Watt Laboratory, an organization under Huawei's Central Research Institute, at the 57th Battery Symposium held in Japan, their research has shown amazing results of the new Li-ion battery to withstand 60°C and also has twice the lifespan compared to normal Li-ion batteries.
According to Dr. Yangxing Li, Chief Scientist at Watt Laboratory, there are three factors that made this happened which are
- A special additive in the electrolytes that can remove trace water, preventing the electrolytes from evaporating in high temperatures.
- A modified large-crystal NMC materials used for the cathode, improving the thermal stability of the cathode powder.
- Some graphene inside that allows efficient cooling of the Li-ion battery.
"We have performed charging and discharging tests in a high-temperature environment. 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 a temperature of 60°C. Less than 13% of its capacity is lost after being kept in a 60°C environment for 200 days." said Dr. Li
With this breakthrough, this will potentially change the storage systems of communications base stations. Outdoor base stations powered by the graphene-assisted high-temperature Li-ion batteries will have working lifespans longer than four years, and can also contribute high mileage for electric vehicles per charge as well as drones in high temperatures.
Stay tuned for more Huawei news at Technave.com
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