華爲將推出超長壽命石墨烯基鋰離子電池

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

華爲近日宣佈了其在鋰離子電池研究方面的一個重大突破--公佈了全球首個能夠耐高溫、長壽命的石墨烯鋰離子電池。

The announcement was made by Watt Laboratory, an organization under Huawei's Central Research Institute, at the 57th Battery Symposium held in Japan.

華爲中央研究院瓦特實驗室是在日本舉行的第57屆電池討論會上宣佈的這一消息。

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 than the existing upper limit.

華爲的研究成果顯示，新款石墨烯耐高溫技術能夠使鋰離子電池在60℃的環境下正常運作，這比當前的上限要高出10℃。

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

此石墨烯鋰離子電池的壽命還將是普通鋰電池的兩倍。

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

瓦特實驗室首席科學家李陽興博士指出，石墨烯高溫鋰離子電池的突破來自三個方面。

First, a special additive in the electrolytes can remove trace water and prevent the electrolytes from evaporating in high temperatures. Second, modified large-crystal NMC materials 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.

首先，在電解液中加入特殊添加劑，除去痕量水，避免電解液的高溫分解。第二，電池正極選用改性的大單晶三元材料，提高材料的熱穩定性。第三，採用新型材料石墨烯，可實現鋰離子電池與環境間的高效散熱。

Dr. Li said, "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."

李陽興博士表示：“高溫環境下的充放電測試表明，在同等工作參數下，該石墨烯基高溫鋰離子電池的溫升比普通鋰離子電池降低了5℃。”

"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."

“在60°C高溫循環2000次，其容量保持率仍超過70%；60℃高溫存儲200天，容量損失小於13%。”