Yang Feng, Zhenheng Huang, Ruochen Zhang, Beidou Zhong, Zhonghan Wu, Yanpeng Fan, Zhenhua Yan, Kai Zhang, Jun Chen
{"title":"用于锂金属电池的具有半固定溶剂位点的准固态电解质","authors":"Yang Feng, Zhenheng Huang, Ruochen Zhang, Beidou Zhong, Zhonghan Wu, Yanpeng Fan, Zhenhua Yan, Kai Zhang, Jun Chen","doi":"10.31635/ccschem.024.202404142","DOIUrl":null,"url":null,"abstract":"Quasi solid-state lithium-metal batteries (QSSLMBs) hold significant promise for enhanced energy density when compared to conventional battery systems. Nevertheless, current QSSLMBs face challenges in lithium dendrites and electrode-electrolyte interfacial side reactions driven by excessive active free solvent molecules. Herein, a metal-organic framework (MOF) with chemically grafted soft multi-ether molecules (D-Gluconic acid,2,4:3,5-di-O-methylene-, denoted as G) has been proposed to serve as a solid-state electrolyte (SSE). The as-obtained MOF-G-based electrolyte (MGE) comprises structured MOF channels with semi-immobilized solvent-like sites (G molecules), which replace liquid molecules to coordinate with Li<sup>+</sup> ions. The MGE reduces the demand for solvents compared with traditional QSSEs, thus suppressing interface side reactions. This arrangement also facilitates achieving an elevated Li<sup>+</sup> transference number (0.64) and a broad electrochemical stability window (5.4 V). Ultimately, the solid-state Li//Li symmetrical battery displays an extended lifetime surpassing 1500 h under 1 mA cm<sup>−2</sup>. The solid-state LiFePO4//Li battery utilizing the flame retarded MGE attains an impressive capacity retention of 95.75% over 600 cycles. The MOF-based functionalization strategy introduces an innovative approach to designing high-performance SSE for the advanced solid-state LMBs.\n<figure><img alt=\"\" data-lg-src=\"/cms/asset/44463887-8f67-463e-afbf-25ad1cf600fa/keyimage.jpg\" data-src=\"/cms/asset/af2fc54c-82f4-473d-9df4-5948ffe19c1b/keyimage.jpg\" src=\"/specs/ux3/releasedAssets/images/loader-7e60691fbe777356dc81ff6d223a82a6.gif\"/><ul>\n<li>Download figure</li>\n<li>Download PowerPoint</li>\n</ul>\n</figure>","PeriodicalId":9810,"journal":{"name":"CCS Chemistry","volume":"22 1","pages":""},"PeriodicalIF":9.4000,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Quasi-Solid-State Electrolyte with Semi-Immobilized Solvent-Like Sites for Lithium-Metal Batteries\",\"authors\":\"Yang Feng, Zhenheng Huang, Ruochen Zhang, Beidou Zhong, Zhonghan Wu, Yanpeng Fan, Zhenhua Yan, Kai Zhang, Jun Chen\",\"doi\":\"10.31635/ccschem.024.202404142\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Quasi solid-state lithium-metal batteries (QSSLMBs) hold significant promise for enhanced energy density when compared to conventional battery systems. Nevertheless, current QSSLMBs face challenges in lithium dendrites and electrode-electrolyte interfacial side reactions driven by excessive active free solvent molecules. Herein, a metal-organic framework (MOF) with chemically grafted soft multi-ether molecules (D-Gluconic acid,2,4:3,5-di-O-methylene-, denoted as G) has been proposed to serve as a solid-state electrolyte (SSE). The as-obtained MOF-G-based electrolyte (MGE) comprises structured MOF channels with semi-immobilized solvent-like sites (G molecules), which replace liquid molecules to coordinate with Li<sup>+</sup> ions. The MGE reduces the demand for solvents compared with traditional QSSEs, thus suppressing interface side reactions. This arrangement also facilitates achieving an elevated Li<sup>+</sup> transference number (0.64) and a broad electrochemical stability window (5.4 V). Ultimately, the solid-state Li//Li symmetrical battery displays an extended lifetime surpassing 1500 h under 1 mA cm<sup>−2</sup>. The solid-state LiFePO4//Li battery utilizing the flame retarded MGE attains an impressive capacity retention of 95.75% over 600 cycles. The MOF-based functionalization strategy introduces an innovative approach to designing high-performance SSE for the advanced solid-state LMBs.\\n<figure><img alt=\\\"\\\" data-lg-src=\\\"/cms/asset/44463887-8f67-463e-afbf-25ad1cf600fa/keyimage.jpg\\\" data-src=\\\"/cms/asset/af2fc54c-82f4-473d-9df4-5948ffe19c1b/keyimage.jpg\\\" src=\\\"/specs/ux3/releasedAssets/images/loader-7e60691fbe777356dc81ff6d223a82a6.gif\\\"/><ul>\\n<li>Download figure</li>\\n<li>Download PowerPoint</li>\\n</ul>\\n</figure>\",\"PeriodicalId\":9810,\"journal\":{\"name\":\"CCS Chemistry\",\"volume\":\"22 1\",\"pages\":\"\"},\"PeriodicalIF\":9.4000,\"publicationDate\":\"2024-04-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"CCS Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.31635/ccschem.024.202404142\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"CCS Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.31635/ccschem.024.202404142","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
A Quasi-Solid-State Electrolyte with Semi-Immobilized Solvent-Like Sites for Lithium-Metal Batteries
Quasi solid-state lithium-metal batteries (QSSLMBs) hold significant promise for enhanced energy density when compared to conventional battery systems. Nevertheless, current QSSLMBs face challenges in lithium dendrites and electrode-electrolyte interfacial side reactions driven by excessive active free solvent molecules. Herein, a metal-organic framework (MOF) with chemically grafted soft multi-ether molecules (D-Gluconic acid,2,4:3,5-di-O-methylene-, denoted as G) has been proposed to serve as a solid-state electrolyte (SSE). The as-obtained MOF-G-based electrolyte (MGE) comprises structured MOF channels with semi-immobilized solvent-like sites (G molecules), which replace liquid molecules to coordinate with Li+ ions. The MGE reduces the demand for solvents compared with traditional QSSEs, thus suppressing interface side reactions. This arrangement also facilitates achieving an elevated Li+ transference number (0.64) and a broad electrochemical stability window (5.4 V). Ultimately, the solid-state Li//Li symmetrical battery displays an extended lifetime surpassing 1500 h under 1 mA cm−2. The solid-state LiFePO4//Li battery utilizing the flame retarded MGE attains an impressive capacity retention of 95.75% over 600 cycles. The MOF-based functionalization strategy introduces an innovative approach to designing high-performance SSE for the advanced solid-state LMBs.
期刊介绍：
CCS Chemistry, the flagship publication of the Chinese Chemical Society, stands as a leading international chemistry journal based in China. With a commitment to global outreach in both contributions and readership, the journal operates on a fully Open Access model, eliminating subscription fees for contributing authors. Issued monthly, all articles are published online promptly upon reaching final publishable form. Additionally, authors have the option to expedite the posting process through Immediate Online Accepted Article posting, making a PDF of their accepted article available online upon journal acceptance.
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