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Surface and Interfacial Chemistry in the Nickel‐Rich Cathode Materials
Batteries & Supercaps ( IF 5.1 ) Pub Date : 2020-02-20 , DOI: 10.1002/batt.201900131 Junhyeok Kim 1 , Hyungyeon Cha 1 , Hyomyung Lee 1 , Pilgun Oh 2 , Jaephil Cho 1
Batteries & Supercaps ( IF 5.1 ) Pub Date : 2020-02-20 , DOI: 10.1002/batt.201900131 Junhyeok Kim 1 , Hyungyeon Cha 1 , Hyomyung Lee 1 , Pilgun Oh 2 , Jaephil Cho 1
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With increasing demands for high energy lithium‐ion batteries, layered nickel‐rich cathode materials have been considered as the most promising candidate due to their high reversible capacity and low cost. Although some of the materials with nickel contents ≦60 % were commercialized, there are tremendous obstacles for further improvement of electrochemical performance, which is strongly related to the unstable cathode surface and interfacial properties. In this regard, a specific review on the interfacial chemistry between the cathode and electrolyte during electrochemical testing is provided. We highlight the underpinning interfacial chemistry and degradation mechanisms of the cathode materials. Finally, light is shed on the recent efforts for enhancing the interfacial stability of the nickel‐rich cathode materials.
中文翻译：
富镍阴极材料中的表面和界面化学
随着对高能锂离子电池的需求不断增长，由于其高可逆容量和低成本，层状富镍正极材料被认为是最有前途的候选材料。尽管某些镍含量≤的材料60％已商品化，进一步改善电化学性能存在巨大障碍，这与不稳定的阴极表面和界面特性密切相关。在这方面，提供了在电化学测试过程中阴极和电解质之间的界面化学的具体综述。我们强调了阴极材料的基础界面化学和降解机理。最后，有关增强镍富集阴极材料的界面稳定性的最新努力得到了启示。
更新日期：2020-02-20
中文翻译：
富镍阴极材料中的表面和界面化学
随着对高能锂离子电池的需求不断增长，由于其高可逆容量和低成本，层状富镍正极材料被认为是最有前途的候选材料。尽管某些镍含量≤的材料60％已商品化，进一步改善电化学性能存在巨大障碍，这与不稳定的阴极表面和界面特性密切相关。在这方面，提供了在电化学测试过程中阴极和电解质之间的界面化学的具体综述。我们强调了阴极材料的基础界面化学和降解机理。最后，有关增强镍富集阴极材料的界面稳定性的最新努力得到了启示。
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