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锂离子电池高压尖晶石LiMnNiO正极材料的研究进展：表面改性、掺杂、电解质及氧缺陷

Recent Progress of High Voltage Spinel LiMnNiO Cathode Material for Lithium-Ion Battery: Surface Modification, Doping, Electrolyte, and Oxygen Deficiency.

作者信息

Choi Seokyoung, Feng Wuliang, Xia Yongyao

机构信息

Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai, 200433 China.

Institute for Sustainable Energy & College of Sciences, Shanghai University, Shanghai 200444, China.

出版信息

ACS Omega. 2024 Apr 21;9(17):18688-18708. doi: 10.1021/acsomega.3c09101. eCollection 2024 Apr 30.

DOI:10.1021/acsomega.3c09101
PMID:38708231
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11064041/
Abstract

High voltage spinel LiMnNiO (LMNO) is a promising energy storage material for the next generation lithium batteries with high energy densities. However, due to the major controversies in synthesis, structure, and interfacial properties of LMNO, its unsatisfactory performance is still a challenge hindering the technology's practical applications. Herein, this paper provides general characteristics of LiMnNiO such as spinel structure, electrochemical properties, and phase transition. In addition, factors such as electrolyte decomposition and morphology of LMNO that influence the electrochemical performances of LMNO are introduced. The strategies that enhance the electrochemical performances including coating, doping, electrolytes, and oxygen deficiency are comprehensively discussed. Through the discussion of the present research status and presentation of our perspectives on future development, we provide the rational design of LMNO in realizing lithium-ion batteries with improved electrochemical performances.

摘要

高压尖晶石LiMnNiO（LMNO）是一种很有前途的储能材料，可用于下一代高能量密度的锂电池。然而，由于LMNO在合成、结构和界面性质方面存在重大争议，其不尽人意的性能仍然是阻碍该技术实际应用的一个挑战。在此，本文介绍了LiMnNiO的一般特性，如尖晶石结构、电化学性质和相变。此外，还介绍了诸如电解质分解和LMNO形态等影响LMNO电化学性能的因素。全面讨论了提高电化学性能的策略，包括涂层、掺杂、电解质和氧缺陷。通过对当前研究现状的讨论以及对未来发展的展望，我们为实现具有改进电化学性能的锂离子电池提供了LMNO的合理设计。

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