Improving LiNi0.9Co0.08Mn0.02O2's cyclic stability via abating mechanical damages
文献类型：期刊论文
| 作者 | Ren, Zhongmin; Shen, Cai; Liu, Meng; Liu, Jian; Zhang, Shengqi; Yang, Gai; Huai, Liyuan; Liu, Xiaosong; Wang, Deyu; Li, Hong |
| 刊名 | ENERGY STORAGE MATERIALS
 |
| 出版日期 | 2020 |
| 卷号 | 28页码:1-9 |
| 关键词 | RICH LAYERED CATHODE NI-RICH ENERGY-DENSITY ION DEGRADATION SURFACE LINI0.8CO0.1MN0.1O2 GENERATION EVOLUTION BATTERY |
| DOI | 10.1016/j.ensm.2020.02.028 |
| 英文摘要 | The cyclic plummet caused by mechanical-damage-induced particle cracking is one of the key challenges to hinder the practical application of nickel-rich cathodes. Mechanical stress, roughly estimated by.c resulted from variation of O-(Li)-O propelling forces, could be tuned up by partially deflecting oxygen charges. Herein, we propose a strategy to abate the mechanical stress of LiNi0.9Co0.08Mn0.02O2 via adjusting electrons' distribution with appropriate cations substitution. Among the investigated species, Ti- and Al-modifications alleviate the change of lattice c by drawing the neighbor-oxygen charges to transition metal (TM) layers, and Zn-substitution aggrandizes Delta c indicating that pushing effect plays the dominant role. Since it renders the largest reduction of lattice c variation, similar to 40% less in both regions, Ti-substituted sample retains 93.4% of the initial capacity after 200 cycles, even without particle cracking, although the other samples also deliver similar to 220 mAhg(-1) under 0.1 C. Our approaches demonstrate the dependence of mechanical stress on electronic micro-structure, which is viable to develop long-life cathodes for power lithium ion batteries. |
| 学科主题 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/20771]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Shen, C 2.Huai, LY 3.Wang, DY (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Ren, Zhongmin,Shen, Cai,Liu, Meng,et al. Improving LiNi0.9Co0.08Mn0.02O2's cyclic stability via abating mechanical damages[J]. ENERGY STORAGE MATERIALS,2020,28:1-9. |
| APA | Ren, Zhongmin.,Shen, Cai.,Liu, Meng.,Liu, Jian.,Zhang, Shengqi.,...&Li, Hong.(2020).Improving LiNi0.9Co0.08Mn0.02O2's cyclic stability via abating mechanical damages.ENERGY STORAGE MATERIALS,28,1-9. |
| MLA | Ren, Zhongmin,et al."Improving LiNi0.9Co0.08Mn0.02O2's cyclic stability via abating mechanical damages".ENERGY STORAGE MATERIALS 28(2020):1-9. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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