离子
材料科学
碳纤维
工作(物理)
化学工程
化学
复合材料
热力学
复合数
物理
工程类
有机化学
作者
Xianlu Lu,Xinfeng Zhang,Yapeng Zheng,Dongdong Zhang,Lan Jiang,Fengmei Gao,Qiao Liu,Dingfa Fu,Jie Teng,Weiyou Yang
标识
DOI:10.1073/pnas.2122252119
摘要
SignificanceThe present work might be significant for exploring advanced K-ion batteries with superb rate capability and cycle stability toward practical applications. The as-assembled K-ion half cell exhibits an excellent rate capability of 428 mA h g-1 at 100 mA g-1 and a high reversible specific capacity of 330 mA h g-1 with 120% specific capacity retention after 2,000 cycles at 2,000 mA g-1, which is the best among those based on carbon materials. The as-constructed full cell delivers 98% specific capacity retention over 750 cycles at 500 mA g-1, superior to most of those based on carbon materials that have been reported thus far.
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