Li2FeCl4 as a Cost-Effective and Durable Cathode for Solid-State Li-Ion Batteries

被引：1

作者：

Liu, Zhantao ^{[1
]}

Zhang, Guangxing ^{[1
]}

Pepas, Jakub ^{[1
]}

Ma, Yifan ^{[1
]}

Chen, Hailong ^{[1
]}

机构：

[1] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA

来源：

ACS ENERGY LETTERS | 2024年 / 9卷 / 11期

基金：

美国国家科学基金会;

关键词：

RECHARGEABLE LITHIUM; CONVERSION CATHODES; CONDUCTIVITY; OXIDE;

D O I：

10.1021/acsenergylett.4c02376

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Low-cost cathode materials with high energy density and good rate performance are critical for the development of next-generation solid-state Li-ion batteries (SSLIBs). Here, we report Li2FeCl4 as a cathode material for SSLIBs with highly reversible Li intercalation and deintercalation, a high operation voltage of 3.7 V vs Li+/Li, good rate capability, and good cycling stability with an 86% capacity retention after 6000 cycles. Operando synchrotron XRD reveals that the phase evolution of Li2FeCl4 during charge-discharge cycling involves both solid-solution and two-phase reactions, which maintains a very stable framework during Li insertion and extraction.

引用

页码：5464 / 5470

页数：7

共 31 条

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