材料科学
离子
自行车
钙
扩散
锂(药物)
储能
化学工程
纳米技术
冶金
热力学
化学
物理
工程类
内分泌学
功率(物理)
考古
有机化学
历史
医学
作者
Jihui Lang,Caihui Jiang,Yue Fang,Lei Shi,Shijie Miao,Yongbing Tang
标识
DOI:10.1002/aenm.201901099
摘要
Abstract Calcium‐ion batteries (CIBs) are promising energy storage devices due to the merits of natural abundance, similar standard reduction potential to lithium, and bivalent‐ion characteristic of calcium. However, the development of CIBs is hindered by the low rate capability and poor cycling performance at room temperature. Here, a highly reversible room‐temperature calcium‐ion based hybrid battery is realized by a tri‐ion strategy, which significantly improves the diffusion kinetics of calcium ions. The optimized CIB shows high rate capability of 15 C as well as excellent cycling stability over 1500 cycles with 86% capacity retention at 5 C, at room temperature, which is the best result of reported calcium‐ion based full batteries.
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