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Huawei's New Graphene-Assisted Batteries Can Withstand High Temperatures
Representative photo. (Image: REUTERS/Rick Wilking)
Chinese smartphone maker Huawei on Thursday announced the world's first long-lifespan graphene-assisted Li-ion battery which can withstand high temperatures and remain functional even in a 60 degrees Celsius environment.
The announcement was made by Watt Laboratory, an organisation under Huawei's Central Research Institute, at the three-day 57th Battery Symposium held in Japan which concluded on Thursday.
According to Huawei's research results, the new graphene-based heat-resistant technologies allow Li-ion batteries to remain functional in a 60 degrees Celsius environment -- a temperature 10 degrees Celsius higher than the existing upper limit.
The lifespan of the graphene-assisted Li-ion batteries will also be twice as long as ordinary Li-ion batteries.
"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 five degrees Celsius cooler than ordinary Li-ion batteries," Dr Yangxing Li, Chief Scientist at Watt Laboratory, said in a statement.
"Over 70 percent of the graphene battery's capacity is left after it is recharged 2,000 times at a temperature of 60 degrees Celsius. Less than 13 percent of its capacity is lost after being kept in a 60 degrees Celsius environment for 200 days," Dr Li added.
At the last year's "Battery Symposium", Huawei's Watt Laboratory revealed its quick-charging technology which recharges 48 percent of a 3,000mAh battery in just five minutes.
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