Modification Strategies and Challenges of High‐Performance Lithium‐Rich Manganese‐Based Cathode Materials

Author:

Tang Weihao1,Zhu Jiping1ORCID,Chen Chao1,Ye Qin1,Zeng Fuhao1,Ma Zeping1

Affiliation:

1. School of Materials Science and Engineering Hefei University of Technology Hefei Anhui 230009 P. R. China

Abstract

Lithium‐rich manganese‐based (LRM) cathode materials have recently gained increasing attention for their remarkable reversible capacity of up to 378 mAh g−1. However, the development of these materials is hindered by several challenges, including oxygen deficiency, migration of transition metal ions, and structural changes from lamellar to spinel phases. As a result, these limitations result in a low initial Coulomb efficiency, capacity/voltage decay, and inadequate cycle life. To address these issues, the modification of layered lithium‐rich materials proves to be an effective approach. In this review, the structure and electrochemical properties of layered LRM materials are introduced and various systematic modification strategies are discussed. Herein, the current state and future prospects of several strategies such as doping, surface coating, and structure control are delved into. Furthermore, development ideas for achieving high‐capacity and long‐cycle‐layered LRM cathode materials are presented.

Funder

Natural Science Foundation of Hebei Province

Publisher

Wiley

Subject

General Energy

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