电解质
离子电导率
氯化物
快离子导体
材料科学
锂(药物)
阳极
电导率
水分
离子键合
无机化学
相对湿度
氯化锂
湿度
化学工程
阴极
电极
离子
化学
复合材料
冶金
有机化学
物理化学
内分泌学
工程类
物理
热力学
医学
作者
Kai Wang,Qingyong Ren,Zhenqi Gu,Chaomin Duan,Jinzhu Wang,Feng Zhu,Yuanyuan Fu,Jipeng Hao,Jinfeng Zhu,Lunhua He,Chin-Wei Wang,Yingying Lü,Jie Ma,Cheng Ma
标识
DOI:10.1038/s41467-021-24697-2
摘要
Abstract Li-ion-conducting chloride solid electrolytes receive considerable attention due to their physicochemical characteristics such as high ionic conductivity, deformability and oxidative stability. However, the raw materials are expensive, and large-scale use of this class of inorganic superionic conductors seems unlikely. Here, a cost-effective chloride solid electrolyte, Li 2 ZrCl 6 , is reported. Its raw materials are several orders of magnitude cheaper than those for the state-of-the-art chloride solid electrolytes, but high ionic conductivity (0.81 mS cm –1 at room temperature), deformability, and compatibility with 4V-class cathodes are still simultaneously achieved in Li 2 ZrCl 6 . Moreover, Li 2 ZrCl 6 demonstrates a humidity tolerance with no sign of moisture uptake or conductivity degradation after exposure to an atmosphere with 5% relative humidity. By combining Li 2 ZrCl 6 with the Li-In anode and the single-crystal LiNi 0.8 Mn 0.1 Co 0.1 O 2 cathode, we report a room-temperature all-solid-state cell with a stable specific capacity of about 150 mAh g –1 for 200 cycles at 200 mA g –1 .
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