Comprehensive understanding of Li/Ni intermixing in layered transition metal oxides
Comprehensive understanding of Li/Ni intermixing in layered transition metal oxides
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全面了解层状过渡金属氧化物中Li/Ni的混合
DOI：
10.1016/j.mattod.2021.09.013
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发表时间：
2021-10
期刊：
影响因子：
24.2
通讯作者：
Zheng Jun-chao
中科院分区：
文献类型：
--
作者：
Wei Han-xin;Tang Lin-bo;Huang Ying-de;Wang Zhen-yu;Luo Yu-hong;He Zhen-jiang;Yan Cheng;Mao Jing;Dai Ke-hua;Zheng Jun-chao
随着高能量密度电池技术的发展，层状过渡金属氧化物正极材料，特别是锂离子电池的富镍层状正极材料因其高能量密度而被迫切需要。然而，在富镍正极材料中不可避免地会发生Li/Ni混合现象，影响材料的结构和性能。本文综合总结了Li/Ni混合的原因，并从离子半径、Ni迁移、磁相互作用和热稳定性等方面分析了Li/Ni混合的必然性。此外，总结了Li/Ni混合对材料的影响，特别是其益处，但尚未得到全面的研究。最后，针对Li/Ni混合产生的原因，提出了相应的调节方法。本文综述有助于研究人员全面了解Li/Ni混炼，并针对Li/Ni混炼研究目前存在的不足和未来的研究方向提出解决方案。
With the development of high energy density battery technology, layered transition metal oxide cathode materials, particularly Ni-rich layered cathodes of Li-ion batteries are urgently required due to its high energy density. However, Li/Ni intermixing inevitably occurs in Ni-rich cathode materials and affects the materials in terms of structure and performance. This review comprehensively summarizes the causes of Li/Ni intermixing and analyzes its inevitability due to ionic radius, Ni migration, magnetic interactions, and thermal stability. In addition, the effect of Li/Ni intermixing on materials is summarized, particularly its benefits, which have not yet been comprehensively examined. Finally, the methods for regulating Li/Ni intermixing that corresponds to its causes are presented in detail. This review can help researchers fully understand Li/Ni intermixing and propose solutions for the current shortcomings of Li/Ni intermixing research and directions for future studies.
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影响因子：
22
作者：
Nam, Gyeong Won;Park, Nam-Yung;Sun, Yang-Kook
通讯作者：
Sun, Yang-Kook
影响因子：
3.9
作者：
Jiangfeng Xiang;Caixian Chang;Feng Zhang;Ju-tang Sun
通讯作者：
Jiangfeng Xiang;Caixian Chang;Feng Zhang;Ju-tang Sun
通过注入梯度硼来调节具有离子导电层和柱撑层的富镍正极材料的界面以提高循环稳定性
影响因子：
9.5
作者：
Yang Wen;Xiang Wei;Chen Yan-Xiao;Wu Zhen-Guo;Hua Wei-Bo;Qiu Lang;He Feng-Rong;Zhang Jun;Zhong Ben-He;Guo Xiao-Dong
通讯作者：
Guo Xiao-Dong
DOI：
10.1021/acs.jpclett.9b01516
发表时间：
2019-08
期刊：
The journal of physical chemistry letters
影响因子：
--
作者：
Wen-Tse Lo;Ching-Ching Yu-Ching;E. G. Leggesse;S. Nachimuthu;Jyh‐Chiang Jiang
通讯作者：
Wen-Tse Lo;Ching-Ching Yu-Ching;E. G. Leggesse;S. Nachimuthu;Jyh‐Chiang Jiang
影响因子：
9.5
作者：
Hu, Jiangtao;Wang, Qinchao;Hu, Enyuan
通讯作者：
Hu, Enyuan