{"title":"Zr掺杂稳定锂离子电池高锰橄榄石阴极的抗溶解框架策略","authors":"Seunghan Lim , Yijeong Kang , Ji-Won Jung , Wonchang Choi","doi":"10.1016/j.est.2025.118509","DOIUrl":null,"url":null,"abstract":"<div><div>Given the increasing demand for safe and durable lithium-ion batteries in electric vehicle and energy storage systems, LiMn<sub>1-<em>x</em></sub>Fe<sub><em>x</em></sub>PO<sub>4</sub> (LMFP) cathodes have emerged as promising olivine-type cathodes because of their excellent structural stability and the use of earth-abundant, low-cost elements. However, their commercialization is limited by inherently sluggish Li-ion transport and Mn<sup>3+</sup>-induced Mn dissolution, which severely hinder long-term cycling stability. These issues are intensified under high Mn compositions, which are otherwise essential for achieving high energy densities. Therefore, addressing these challenges is critical for the practical use of high-Mn-ratio LMFP cathodes. In this study, we propose a Zr doping strategy that regulates local bonding environments while suppressing Mn dissolution and enhancing Li-ion conductivity. The proposed approach achieves significant improvements in both rate capability and structural integrity under harsh electrochemical conditions, providing a viable pathway toward durable high-Mn-ratio olivine-type cathodes.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":"138 ","pages":"Article 118509"},"PeriodicalIF":8.9000,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Anti-dissolution framework strategy for stabilizing high-Mn olivine cathodes via Zr doping for lithium-ion batteries\",\"authors\":\"Seunghan Lim , Yijeong Kang , Ji-Won Jung , Wonchang Choi\",\"doi\":\"10.1016/j.est.2025.118509\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Given the increasing demand for safe and durable lithium-ion batteries in electric vehicle and energy storage systems, LiMn<sub>1-<em>x</em></sub>Fe<sub><em>x</em></sub>PO<sub>4</sub> (LMFP) cathodes have emerged as promising olivine-type cathodes because of their excellent structural stability and the use of earth-abundant, low-cost elements. However, their commercialization is limited by inherently sluggish Li-ion transport and Mn<sup>3+</sup>-induced Mn dissolution, which severely hinder long-term cycling stability. These issues are intensified under high Mn compositions, which are otherwise essential for achieving high energy densities. Therefore, addressing these challenges is critical for the practical use of high-Mn-ratio LMFP cathodes. In this study, we propose a Zr doping strategy that regulates local bonding environments while suppressing Mn dissolution and enhancing Li-ion conductivity. The proposed approach achieves significant improvements in both rate capability and structural integrity under harsh electrochemical conditions, providing a viable pathway toward durable high-Mn-ratio olivine-type cathodes.</div></div>\",\"PeriodicalId\":15942,\"journal\":{\"name\":\"Journal of energy storage\",\"volume\":\"138 \",\"pages\":\"Article 118509\"},\"PeriodicalIF\":8.9000,\"publicationDate\":\"2025-10-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of energy storage\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2352152X25032220\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of energy storage","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2352152X25032220","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Anti-dissolution framework strategy for stabilizing high-Mn olivine cathodes via Zr doping for lithium-ion batteries
Given the increasing demand for safe and durable lithium-ion batteries in electric vehicle and energy storage systems, LiMn1-xFexPO4 (LMFP) cathodes have emerged as promising olivine-type cathodes because of their excellent structural stability and the use of earth-abundant, low-cost elements. However, their commercialization is limited by inherently sluggish Li-ion transport and Mn3+-induced Mn dissolution, which severely hinder long-term cycling stability. These issues are intensified under high Mn compositions, which are otherwise essential for achieving high energy densities. Therefore, addressing these challenges is critical for the practical use of high-Mn-ratio LMFP cathodes. In this study, we propose a Zr doping strategy that regulates local bonding environments while suppressing Mn dissolution and enhancing Li-ion conductivity. The proposed approach achieves significant improvements in both rate capability and structural integrity under harsh electrochemical conditions, providing a viable pathway toward durable high-Mn-ratio olivine-type cathodes.
期刊介绍:
Journal of energy storage focusses on all aspects of energy storage, in particular systems integration, electric grid integration, modelling and analysis, novel energy storage technologies, sizing and management strategies, business models for operation of storage systems and energy storage developments worldwide.