Huiyan Zha , Xiaoxue Wu , Guyue Li , Jiulin Hu , Keyi Chen , Meng Lei , Yangyang Liu , Zhenzhen Zhou , Jiang Li , Chilin Li
{"title":"全固态转换型锂金属电池用绿色环糊精框架填料增强聚合物电解质","authors":"Huiyan Zha , Xiaoxue Wu , Guyue Li , Jiulin Hu , Keyi Chen , Meng Lei , Yangyang Liu , Zhenzhen Zhou , Jiang Li , Chilin Li","doi":"10.1016/j.ssi.2025.116936","DOIUrl":null,"url":null,"abstract":"<div><div>The polyethylene oxide (PEO) based electrolytes are considered as promising candidates for all-solid-state lithium metal batteries due to their excellent operability and flexibility. However, their practical application is hindered by low ionic conductivity and inability to effectively suppress lithium dendrite growth. Here, by incorporating “green” cyclodextrin metal-organic framework (CD-MOF) nanoparticles with rich hydroxyl groups into the PEO-based electrolyte, an environmentally friendly and high-performance composite electrolyte is successfully developed. The well-defined pores and abundant hydroxyl groups in CD-MOF enable the formation of hydrogen bonds with both the ethylene oxide groups in PEO and the lithium salt anions, which suppresses the PEO recrystallization and promotes the lithium salt dissociation, thereby enhancing the ionic conductivity. The optimized composite electrolyte achieves a high ionic conductivity of 4.0 × 10<sup>−4</sup> S·cm<sup>−1</sup> at 60 °C, along with an expanded electrochemical window up to 5 V. The introduction of CD-MOF significantly improves the ability of polymer electrolyte to suppress lithium dendrite growth, enabling the stable cycling over 2000 h at 60 °C under a current density of 0.1 mA·cm<sup>−2</sup>. The incorporation of CD-MOF filler greatly enhances the capacity and rate performance of polymer-based lithium metal batteries based on both insertion and conversion cathodes.</div></div>","PeriodicalId":431,"journal":{"name":"Solid State Ionics","volume":"428 ","pages":"Article 116936"},"PeriodicalIF":3.3000,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Polymer electrolytes reinforced by green cyclodextrin framework filler for all-solid-state conversion-type lithium metal batteries\",\"authors\":\"Huiyan Zha , Xiaoxue Wu , Guyue Li , Jiulin Hu , Keyi Chen , Meng Lei , Yangyang Liu , Zhenzhen Zhou , Jiang Li , Chilin Li\",\"doi\":\"10.1016/j.ssi.2025.116936\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The polyethylene oxide (PEO) based electrolytes are considered as promising candidates for all-solid-state lithium metal batteries due to their excellent operability and flexibility. However, their practical application is hindered by low ionic conductivity and inability to effectively suppress lithium dendrite growth. Here, by incorporating “green” cyclodextrin metal-organic framework (CD-MOF) nanoparticles with rich hydroxyl groups into the PEO-based electrolyte, an environmentally friendly and high-performance composite electrolyte is successfully developed. The well-defined pores and abundant hydroxyl groups in CD-MOF enable the formation of hydrogen bonds with both the ethylene oxide groups in PEO and the lithium salt anions, which suppresses the PEO recrystallization and promotes the lithium salt dissociation, thereby enhancing the ionic conductivity. The optimized composite electrolyte achieves a high ionic conductivity of 4.0 × 10<sup>−4</sup> S·cm<sup>−1</sup> at 60 °C, along with an expanded electrochemical window up to 5 V. The introduction of CD-MOF significantly improves the ability of polymer electrolyte to suppress lithium dendrite growth, enabling the stable cycling over 2000 h at 60 °C under a current density of 0.1 mA·cm<sup>−2</sup>. The incorporation of CD-MOF filler greatly enhances the capacity and rate performance of polymer-based lithium metal batteries based on both insertion and conversion cathodes.</div></div>\",\"PeriodicalId\":431,\"journal\":{\"name\":\"Solid State Ionics\",\"volume\":\"428 \",\"pages\":\"Article 116936\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2025-06-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Solid State Ionics\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0167273825001559\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid State Ionics","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167273825001559","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Polymer electrolytes reinforced by green cyclodextrin framework filler for all-solid-state conversion-type lithium metal batteries
The polyethylene oxide (PEO) based electrolytes are considered as promising candidates for all-solid-state lithium metal batteries due to their excellent operability and flexibility. However, their practical application is hindered by low ionic conductivity and inability to effectively suppress lithium dendrite growth. Here, by incorporating “green” cyclodextrin metal-organic framework (CD-MOF) nanoparticles with rich hydroxyl groups into the PEO-based electrolyte, an environmentally friendly and high-performance composite electrolyte is successfully developed. The well-defined pores and abundant hydroxyl groups in CD-MOF enable the formation of hydrogen bonds with both the ethylene oxide groups in PEO and the lithium salt anions, which suppresses the PEO recrystallization and promotes the lithium salt dissociation, thereby enhancing the ionic conductivity. The optimized composite electrolyte achieves a high ionic conductivity of 4.0 × 10−4 S·cm−1 at 60 °C, along with an expanded electrochemical window up to 5 V. The introduction of CD-MOF significantly improves the ability of polymer electrolyte to suppress lithium dendrite growth, enabling the stable cycling over 2000 h at 60 °C under a current density of 0.1 mA·cm−2. The incorporation of CD-MOF filler greatly enhances the capacity and rate performance of polymer-based lithium metal batteries based on both insertion and conversion cathodes.
期刊介绍:
This interdisciplinary journal is devoted to the physics, chemistry and materials science of diffusion, mass transport, and reactivity of solids. The major part of each issue is devoted to articles on:
(i) physics and chemistry of defects in solids;
(ii) reactions in and on solids, e.g. intercalation, corrosion, oxidation, sintering;
(iii) ion transport measurements, mechanisms and theory;
(iv) solid state electrochemistry;
(v) ionically-electronically mixed conducting solids.
Related technological applications are also included, provided their characteristics are interpreted in terms of the basic solid state properties.
Review papers and relevant symposium proceedings are welcome.