{"title":"在锂离子二次电池中使用交联聚-BIAN 粘结剂的硅阳极的超耐久性和可逆容量可实现稳定性能","authors":"Agman Gupta, Rajashekar Badam, Bharat Srimitra Mantripragada, Sameer Nirupam Mishra, Noriyoshi Matsumi","doi":"10.1002/adsu.202400263","DOIUrl":null,"url":null,"abstract":"With a high theoretical gravimetric capacity of 3579 mAhg<jats:sup>−1</jats:sup>, silicon (Si) has made a promising claim as an alternative to graphite (372 mAhg<jats:sup>−1</jats:sup>) in lithium‐ion battery (LIB) anodes as an active material. Unfortunately, inherent failure mechanisms (pulverization, delamination, promoting thick interphase formation, and non‐conducting nature) of Si anodes have plagued their way toward commercialization. To stabilize Si anodes, this work reports the design, synthesis, and application of a conducting/crosslinked poly(BIAN) (P‐BIAN) as a polymer binder for Si anodes. Theoretical evaluation of crosslinked P‐BIAN and electrochemical characterization of anodic half‐cells show that the crosslinked P‐BIAN exhibits its versatility by a) administering mechanical robustness to stabilize Si particles, b) undergoing n‐doping owing to the low‐lying lowest unoccupied molecular orbital (LUMO) to tailor a thin solid‐electrolyte interphase (SEI), and c) maintaining electrical conductivity. This inspired Si anodes to show a high reversible capacity of ≈2500 mAhg<jats:sup>−1</jats:sup> for over 1000 cycles with 99.1% capacity retention at 500 mAg<jats:sup>−1</jats:sup> current‐rate.","PeriodicalId":7294,"journal":{"name":"Advanced Sustainable Systems","volume":"9 1","pages":""},"PeriodicalIF":6.5000,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ultra‐Durability and Reversible Capacity of Silicon Anodes with Crosslinked Poly‐BIAN Binder in Lithium‐Ion Secondary Batteries for Sturdy Performance\",\"authors\":\"Agman Gupta, Rajashekar Badam, Bharat Srimitra Mantripragada, Sameer Nirupam Mishra, Noriyoshi Matsumi\",\"doi\":\"10.1002/adsu.202400263\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"With a high theoretical gravimetric capacity of 3579 mAhg<jats:sup>−1</jats:sup>, silicon (Si) has made a promising claim as an alternative to graphite (372 mAhg<jats:sup>−1</jats:sup>) in lithium‐ion battery (LIB) anodes as an active material. Unfortunately, inherent failure mechanisms (pulverization, delamination, promoting thick interphase formation, and non‐conducting nature) of Si anodes have plagued their way toward commercialization. To stabilize Si anodes, this work reports the design, synthesis, and application of a conducting/crosslinked poly(BIAN) (P‐BIAN) as a polymer binder for Si anodes. Theoretical evaluation of crosslinked P‐BIAN and electrochemical characterization of anodic half‐cells show that the crosslinked P‐BIAN exhibits its versatility by a) administering mechanical robustness to stabilize Si particles, b) undergoing n‐doping owing to the low‐lying lowest unoccupied molecular orbital (LUMO) to tailor a thin solid‐electrolyte interphase (SEI), and c) maintaining electrical conductivity. This inspired Si anodes to show a high reversible capacity of ≈2500 mAhg<jats:sup>−1</jats:sup> for over 1000 cycles with 99.1% capacity retention at 500 mAg<jats:sup>−1</jats:sup> current‐rate.\",\"PeriodicalId\":7294,\"journal\":{\"name\":\"Advanced Sustainable Systems\",\"volume\":\"9 1\",\"pages\":\"\"},\"PeriodicalIF\":6.5000,\"publicationDate\":\"2024-09-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Sustainable Systems\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1002/adsu.202400263\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Sustainable Systems","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/adsu.202400263","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Ultra‐Durability and Reversible Capacity of Silicon Anodes with Crosslinked Poly‐BIAN Binder in Lithium‐Ion Secondary Batteries for Sturdy Performance
With a high theoretical gravimetric capacity of 3579 mAhg−1, silicon (Si) has made a promising claim as an alternative to graphite (372 mAhg−1) in lithium‐ion battery (LIB) anodes as an active material. Unfortunately, inherent failure mechanisms (pulverization, delamination, promoting thick interphase formation, and non‐conducting nature) of Si anodes have plagued their way toward commercialization. To stabilize Si anodes, this work reports the design, synthesis, and application of a conducting/crosslinked poly(BIAN) (P‐BIAN) as a polymer binder for Si anodes. Theoretical evaluation of crosslinked P‐BIAN and electrochemical characterization of anodic half‐cells show that the crosslinked P‐BIAN exhibits its versatility by a) administering mechanical robustness to stabilize Si particles, b) undergoing n‐doping owing to the low‐lying lowest unoccupied molecular orbital (LUMO) to tailor a thin solid‐electrolyte interphase (SEI), and c) maintaining electrical conductivity. This inspired Si anodes to show a high reversible capacity of ≈2500 mAhg−1 for over 1000 cycles with 99.1% capacity retention at 500 mAg−1 current‐rate.
期刊介绍:
Advanced Sustainable Systems, a part of the esteemed Advanced portfolio, serves as an interdisciplinary sustainability science journal. It focuses on impactful research in the advancement of sustainable, efficient, and less wasteful systems and technologies. Aligned with the UN's Sustainable Development Goals, the journal bridges knowledge gaps between fundamental research, implementation, and policy-making. Covering diverse topics such as climate change, food sustainability, environmental science, renewable energy, water, urban development, and socio-economic challenges, it contributes to the understanding and promotion of sustainable systems.