导线
材料科学
离子
电化学
导电体
电极
对偶(语法数字)
氧化还原
曲折
储能
锂(药物)
高能
荷电状态
纳米技术
化学工程
工程物理
电池(电)
光电子学
复合材料
化学
热力学
物理化学
物理
医学
艺术
功率(物理)
文学类
有机化学
多孔性
工程类
冶金
内分泌学
作者
Tao Yu,Haoyu Li,Yuankai Liu,Jingchang Li,Jiaming Tian,Zhaoguo Liu,Y. Mallikarjuna Rao,Shaohua Guo,Haoshen Zhou
出处
期刊:Science Advances
[American Association for the Advancement of Science (AAAS)]
日期:2023-11-03
卷期号:9 (44)
被引量:2
标识
DOI:10.1126/sciadv.adj8171
摘要
All-solid-state batteries (ASSBs) represent a promising battery strategy to achieve high energy density with great safety. However, inadequate kinetic property and poor interfacial compatibility remain great challenges, which impede their practical application. A prototype of dual-ion conductor of Li+ synchronized with Cu+ unlocks a four-electron redox reaction with high reversibility and fast kinetics. As a result, the constructed ASSB exhibited a high reversible capacity of 603.0 mA·hour g-1 and an excellent cycling retention of 93.2% over 1500 cycles. Moreover, because of the ion highway connecting active materials and catholytes constructed by dual-ion conductor, remarkable temperature tolerance (-60°C) and excellent rate performance (231.6 mA·hour g-1 at 20 mA cm-2) were achieved. The superior electrochemical performance can be ascribed to the migration pathway with small energy barrier and low tortuosity once the Cu+ introduced into Li6PS5Cl. This work creates a unique perspective of ASSBs with dual-ion conducting strategy, thus inspiring a potential developing strategy of state-of-the-art ASSBs.
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