| Suppressed Lattice Oxygen Release via Ni/Mn Doping from Spent LiNi0.5Mn0.3Co0.2O2 toward High-Energy Layered-Oxide Cathodes | |
| Jia, Kai1,2; Wang, Junxiong1,2; Ma, Jun2; Liang, Zheng1; Zhuang, Zhaofeng2; Ji, Guanjun1,2; Gao, Runhua2; Piao, Zhihong2; Li, Chuang2; Zhou, Guangmin2; Cheng, Hui-Ming3,4 | |
| Corresponding Author | Liang, Zheng(liangzheng06@sjtu.edu.cn) ; Zhou, Guangmin(guangminzhou@sz.tsinghua.edu.cn) ; Cheng, Hui-Ming(cheng@imr.ac.cn) |
| 2022-09-23 | |
| Source Publication | NANO LETTERS
 |
| ISSN | 1530-6984 |
| Pages | 9 |
| Abstract | LiCoO2 has suffered from poor stability under high voltage as a result of insufficient Co-O bonding that causes lattice oxygen release and lattice distortions. Herein, we fabricated a high-voltage LiCoO2 at 4.6 V by doping with Ni/Mn atoms, which are obtained from spent LiNi0.5Mn0.3Co0.2O2 cathode materials. The as-prepared high-voltage LiCoO2 with Ni/Mn substitutional dopants in the Co layer enhances Co-O bonding that suppresses oxygen release and harmful phase transformation during delithiation, thus stabilizing the layered structure and leading to a superior electrochemical performance at 4.6 V. The pouch cell of modified LiCoO2 exhibits a capacity retention of 85.1% over 100 cycles at 4.5 V (vs graphite). We found that our strategy is applicable for degraded LiCoO2, and the regenerated LiCoO2 using this strategy exhibits excellent capacity retention (84.1%, 100 cycles) at 4.6 V. Our strategy paves the way for the direct conversion of spent batteries into high-energy-density batteries. |
| Keyword | Lattice oxygen release Enhanced Co-O bonding Spent LiNi(0.5)Mn(0.3)Co(0.2)O(2 )cathode materials Degraded LiCoO2 High-voltage LiCoO2 |
| Funding Organization | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Interdisciplinary Research and Innovation Fund of Tsinghua Shenzhen International Graduate School ; start-up funds of Shanghai Jiao Tong University |
| DOI | 10.1021/acs.nanolett.2c03090 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2021YFB2500200] ; National Key Research and Development Program of China[2019YFA0705700] ; National Natural Science Foundation of China[52072205] ; Interdisciplinary Research and Innovation Fund of Tsinghua Shenzhen International Graduate School ; start-up funds of Shanghai Jiao Tong University |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| WOS ID | WOS:000861636200001 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/175725 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liang, Zheng; Zhou, Guangmin; Cheng, Hui-Ming |
| Affiliation | 1.Shanghai Jiao Tong Univ, Frontiers Sci Ctr Transformat Mol Sch Chem & Chem, Shanghai 200240, Peoples R China 2.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China 3.Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Fac Mat Sci & Engn, Shenzhen 518055, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Jia, Kai,Wang, Junxiong,Ma, Jun,et al. Suppressed Lattice Oxygen Release via Ni/Mn Doping from Spent LiNi0.5Mn0.3Co0.2O2 toward High-Energy Layered-Oxide Cathodes[J]. NANO LETTERS,2022:9. |
| APA | Jia, Kai.,Wang, Junxiong.,Ma, Jun.,Liang, Zheng.,Zhuang, Zhaofeng.,...&Cheng, Hui-Ming.(2022).Suppressed Lattice Oxygen Release via Ni/Mn Doping from Spent LiNi0.5Mn0.3Co0.2O2 toward High-Energy Layered-Oxide Cathodes.NANO LETTERS,9. |
| MLA | Jia, Kai,et al."Suppressed Lattice Oxygen Release via Ni/Mn Doping from Spent LiNi0.5Mn0.3Co0.2O2 toward High-Energy Layered-Oxide Cathodes".NANO LETTERS (2022):9. |
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