{"title":"通过紧凑型离子对聚合电解质实现长寿命 500 Wh kg-1 金属锂袋电池","authors":"Yulin Jie, Shiyang Wang, Suting Weng, Yue Liu, Ming Yang, Chao Tang, Xinpeng Li, Zhengfeng Zhang, Yuchen Zhang, Yawei Chen, Fanyang Huang, Yaolin Xu, Wanxia Li, Youzhang Guo, Zixu He, Xiaodi Ren, Yuhao Lu, Ke Yang, Saichao Cao, He Lin, Ruiguo Cao, Pengfei Yan, Tao Cheng, Xuefeng Wang, Shuhong Jiao, Dongsheng Xu","doi":"10.1038/s41560-024-01565-z","DOIUrl":null,"url":null,"abstract":"The development of practical lithium metal cells is plagued by their limited lifespan, primarily due to the poor interfacial stability of the electrolytes. Here we present a compact ion-pair aggregate (CIPA) electrolyte that enables high-performance Li metal pouch cells under lean electrolyte conditions. The electrolyte features a unique nanometre-scale solvation structure in which ion pairs are densely packed to form large CIPAs, in contrast to conventional electrolytes that comprise small aggregates. Notably, the CIPAs facilitate fast interfacial reduction kinetics on the Li metal anode via a collective electron-transfer process, leading to the formation of a stable interface. A 505.9 Wh kg−1 Li metal pouch cell with a high-nickel-content cathode (LiNi0.905Co0.06Mn0.035O2) exhibited a 91% energy retention after 130 cycles. This work demonstrates nanostructured electrolyte design for realizing high-performance Li metal batteries. It also showcases the importance of understanding interfacial reaction mechanisms in the design and development of electrolytes. Electrolyte design is crucial for lithium metal battery development. Here the authors report an electrolyte with a compact solvation structure on the nanometre scale that facilitates fast interfacial reaction kinetics and improves battery performance.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":null,"pages":null},"PeriodicalIF":49.7000,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Towards long-life 500 Wh kg−1 lithium metal pouch cells via compact ion-pair aggregate electrolytes\",\"authors\":\"Yulin Jie, Shiyang Wang, Suting Weng, Yue Liu, Ming Yang, Chao Tang, Xinpeng Li, Zhengfeng Zhang, Yuchen Zhang, Yawei Chen, Fanyang Huang, Yaolin Xu, Wanxia Li, Youzhang Guo, Zixu He, Xiaodi Ren, Yuhao Lu, Ke Yang, Saichao Cao, He Lin, Ruiguo Cao, Pengfei Yan, Tao Cheng, Xuefeng Wang, Shuhong Jiao, Dongsheng Xu\",\"doi\":\"10.1038/s41560-024-01565-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The development of practical lithium metal cells is plagued by their limited lifespan, primarily due to the poor interfacial stability of the electrolytes. Here we present a compact ion-pair aggregate (CIPA) electrolyte that enables high-performance Li metal pouch cells under lean electrolyte conditions. The electrolyte features a unique nanometre-scale solvation structure in which ion pairs are densely packed to form large CIPAs, in contrast to conventional electrolytes that comprise small aggregates. Notably, the CIPAs facilitate fast interfacial reduction kinetics on the Li metal anode via a collective electron-transfer process, leading to the formation of a stable interface. A 505.9 Wh kg−1 Li metal pouch cell with a high-nickel-content cathode (LiNi0.905Co0.06Mn0.035O2) exhibited a 91% energy retention after 130 cycles. This work demonstrates nanostructured electrolyte design for realizing high-performance Li metal batteries. It also showcases the importance of understanding interfacial reaction mechanisms in the design and development of electrolytes. Electrolyte design is crucial for lithium metal battery development. Here the authors report an electrolyte with a compact solvation structure on the nanometre scale that facilitates fast interfacial reaction kinetics and improves battery performance.\",\"PeriodicalId\":19073,\"journal\":{\"name\":\"Nature Energy\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":49.7000,\"publicationDate\":\"2024-07-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nature Energy\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.nature.com/articles/s41560-024-01565-z\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Energy","FirstCategoryId":"88","ListUrlMain":"https://www.nature.com/articles/s41560-024-01565-z","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Towards long-life 500 Wh kg−1 lithium metal pouch cells via compact ion-pair aggregate electrolytes
The development of practical lithium metal cells is plagued by their limited lifespan, primarily due to the poor interfacial stability of the electrolytes. Here we present a compact ion-pair aggregate (CIPA) electrolyte that enables high-performance Li metal pouch cells under lean electrolyte conditions. The electrolyte features a unique nanometre-scale solvation structure in which ion pairs are densely packed to form large CIPAs, in contrast to conventional electrolytes that comprise small aggregates. Notably, the CIPAs facilitate fast interfacial reduction kinetics on the Li metal anode via a collective electron-transfer process, leading to the formation of a stable interface. A 505.9 Wh kg−1 Li metal pouch cell with a high-nickel-content cathode (LiNi0.905Co0.06Mn0.035O2) exhibited a 91% energy retention after 130 cycles. This work demonstrates nanostructured electrolyte design for realizing high-performance Li metal batteries. It also showcases the importance of understanding interfacial reaction mechanisms in the design and development of electrolytes. Electrolyte design is crucial for lithium metal battery development. Here the authors report an electrolyte with a compact solvation structure on the nanometre scale that facilitates fast interfacial reaction kinetics and improves battery performance.
Nature EnergyEnergy-Energy Engineering and Power Technology
CiteScore
75.10
自引率
1.10%
发文量
193
期刊介绍:
Nature Energy is a monthly, online-only journal committed to showcasing the most impactful research on energy, covering everything from its generation and distribution to the societal implications of energy technologies and policies.
With a focus on exploring all facets of the ongoing energy discourse, Nature Energy delves into topics such as energy generation, storage, distribution, management, and the societal impacts of energy technologies and policies. Emphasizing studies that push the boundaries of knowledge and contribute to the development of next-generation solutions, the journal serves as a platform for the exchange of ideas among stakeholders at the forefront of the energy sector.
Maintaining the hallmark standards of the Nature brand, Nature Energy boasts a dedicated team of professional editors, a rigorous peer-review process, meticulous copy-editing and production, rapid publication times, and editorial independence.
In addition to original research articles, Nature Energy also publishes a range of content types, including Comments, Perspectives, Reviews, News & Views, Features, and Correspondence, covering a diverse array of disciplines relevant to the field of energy.