{"title":"抑制高稳定长寿命富锂锰基层状阴极的晶格应变","authors":"Wen-Zhao Huang, Wei Wang, Xiao-La Li, Zi-Yang Liang, Bo-Yang Zhang, Chen-Yu Liu, Qi Liu, Zhan Lin, Dong Luo","doi":"10.1007/s12598-024-03149-y","DOIUrl":null,"url":null,"abstract":"<div><p>The utilization of Li-rich layered oxides (LLOs) as cathodes in high-energy Li-ion batteries is significantly hindered by serious voltage decay and capacity fading due to irreversible oxygen release and transition metal (TM) migration triggered by the lattice strain. Herein, B ions are effectively incorporated into the tetrahedral vacancies situated between TM slab and Li layer of LLOs. The robust B-O bond, along with the low Bader charge of oxygen within BO<sub>4</sub> tetrahedra, alleviates excessive oxidation of O anions while substantially reinforcing the oxygen framework. Consequently, the B-doped LLO sample exhibits only slight variation in lattice parameters, especially the <i>c</i>-axis, which can be characterized as exhibiting “zero-strain” as supported by in situ XRD data. As a result, the discharge capacity of the B-LLO sample maintains 210.66 mAh·g<sup>−1</sup> after 300 cycles, with a retention ratio of 90.7%.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":"44 4","pages":"2340 - 2351"},"PeriodicalIF":9.6000,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Inhibiting lattice strain for highly stable and long-life Li-rich Mn-based layered cathodes\",\"authors\":\"Wen-Zhao Huang, Wei Wang, Xiao-La Li, Zi-Yang Liang, Bo-Yang Zhang, Chen-Yu Liu, Qi Liu, Zhan Lin, Dong Luo\",\"doi\":\"10.1007/s12598-024-03149-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The utilization of Li-rich layered oxides (LLOs) as cathodes in high-energy Li-ion batteries is significantly hindered by serious voltage decay and capacity fading due to irreversible oxygen release and transition metal (TM) migration triggered by the lattice strain. Herein, B ions are effectively incorporated into the tetrahedral vacancies situated between TM slab and Li layer of LLOs. The robust B-O bond, along with the low Bader charge of oxygen within BO<sub>4</sub> tetrahedra, alleviates excessive oxidation of O anions while substantially reinforcing the oxygen framework. Consequently, the B-doped LLO sample exhibits only slight variation in lattice parameters, especially the <i>c</i>-axis, which can be characterized as exhibiting “zero-strain” as supported by in situ XRD data. As a result, the discharge capacity of the B-LLO sample maintains 210.66 mAh·g<sup>−1</sup> after 300 cycles, with a retention ratio of 90.7%.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":749,\"journal\":{\"name\":\"Rare Metals\",\"volume\":\"44 4\",\"pages\":\"2340 - 2351\"},\"PeriodicalIF\":9.6000,\"publicationDate\":\"2025-01-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Rare Metals\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12598-024-03149-y\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rare Metals","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12598-024-03149-y","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Inhibiting lattice strain for highly stable and long-life Li-rich Mn-based layered cathodes
The utilization of Li-rich layered oxides (LLOs) as cathodes in high-energy Li-ion batteries is significantly hindered by serious voltage decay and capacity fading due to irreversible oxygen release and transition metal (TM) migration triggered by the lattice strain. Herein, B ions are effectively incorporated into the tetrahedral vacancies situated between TM slab and Li layer of LLOs. The robust B-O bond, along with the low Bader charge of oxygen within BO4 tetrahedra, alleviates excessive oxidation of O anions while substantially reinforcing the oxygen framework. Consequently, the B-doped LLO sample exhibits only slight variation in lattice parameters, especially the c-axis, which can be characterized as exhibiting “zero-strain” as supported by in situ XRD data. As a result, the discharge capacity of the B-LLO sample maintains 210.66 mAh·g−1 after 300 cycles, with a retention ratio of 90.7%.
期刊介绍：
Rare Metals is a monthly peer-reviewed journal published by the Nonferrous Metals Society of China. It serves as a platform for engineers and scientists to communicate and disseminate original research articles in the field of rare metals. The journal focuses on a wide range of topics including metallurgy, processing, and determination of rare metals. Additionally, it showcases the application of rare metals in advanced materials such as superconductors, semiconductors, composites, and ceramics.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
