{"title":"采用两种近饱和不易燃电解质溶液的高度安全准固态锂离子电池","authors":"","doi":"10.1016/j.est.2024.114115","DOIUrl":null,"url":null,"abstract":"<div><div>Charge/discharge performance of all-solid-state lithium ion batteries (LIBs) is not yet high, compared to those for conventional liquid-type LIBs, which is mainly due to the imperfect joining of solid electrolyte and electrodes. To promote the interfacial lithium ion transfer among the solids, in this study, the nearly saturated and non-flammable electrolyte solutions were incorporated into an interspace among the solids to obtain quasi-solid-state Si|LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> (NCM811) batteries. The Si negative- and NCM811 positive-electrodes were separated with a solid electrolyte sheet, and hence two different electrolyte solutions were used for each electrode. The nearly saturated electrolyte solutions suitable for each electrode and the solid electrolyte were designed, and 30 mAh-class quasi-solid-state pouch cells were fabricated using them. The improved safety and charge/discharge performance demonstrated the feasibility of quasi-solid-state batteries as a near-future technology.</div></div>","PeriodicalId":15942,"journal":{"name":"Journal of energy storage","volume":null,"pages":null},"PeriodicalIF":8.9000,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Highly safe quasi-solid-state lithium ion batteries with two kinds of nearly saturated and non-flammable electrolyte solutions\",\"authors\":\"\",\"doi\":\"10.1016/j.est.2024.114115\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Charge/discharge performance of all-solid-state lithium ion batteries (LIBs) is not yet high, compared to those for conventional liquid-type LIBs, which is mainly due to the imperfect joining of solid electrolyte and electrodes. To promote the interfacial lithium ion transfer among the solids, in this study, the nearly saturated and non-flammable electrolyte solutions were incorporated into an interspace among the solids to obtain quasi-solid-state Si|LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> (NCM811) batteries. The Si negative- and NCM811 positive-electrodes were separated with a solid electrolyte sheet, and hence two different electrolyte solutions were used for each electrode. The nearly saturated electrolyte solutions suitable for each electrode and the solid electrolyte were designed, and 30 mAh-class quasi-solid-state pouch cells were fabricated using them. The improved safety and charge/discharge performance demonstrated the feasibility of quasi-solid-state batteries as a near-future technology.</div></div>\",\"PeriodicalId\":15942,\"journal\":{\"name\":\"Journal of energy storage\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.9000,\"publicationDate\":\"2024-10-11\",\"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/S2352152X24037010\",\"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/S2352152X24037010","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}
引用次数: 0
摘要
与传统液态锂离子电池相比,全固态锂离子电池的充放电性能还不高,这主要是由于固体电解质与电极的结合不完美。为了促进锂离子在固体之间的界面转移,本研究将接近饱和且不易燃的电解质溶液加入到固体之间的间隙中,从而获得了准固态 Si|LiNi0.8Co0.1Mn0.1O2 (NCM811) 电池。硅负极和 NCM811 正极用固体电解质薄片隔开,因此每个电极使用两种不同的电解质溶液。设计出了适合每个电极和固体电解质的近饱和电解质溶液,并利用它们制造出了 30 mAh 级准固态袋式电池。安全性和充放电性能的提高证明了准固态电池作为一种近未来技术的可行性。
Highly safe quasi-solid-state lithium ion batteries with two kinds of nearly saturated and non-flammable electrolyte solutions
Charge/discharge performance of all-solid-state lithium ion batteries (LIBs) is not yet high, compared to those for conventional liquid-type LIBs, which is mainly due to the imperfect joining of solid electrolyte and electrodes. To promote the interfacial lithium ion transfer among the solids, in this study, the nearly saturated and non-flammable electrolyte solutions were incorporated into an interspace among the solids to obtain quasi-solid-state Si|LiNi0.8Co0.1Mn0.1O2 (NCM811) batteries. The Si negative- and NCM811 positive-electrodes were separated with a solid electrolyte sheet, and hence two different electrolyte solutions were used for each electrode. The nearly saturated electrolyte solutions suitable for each electrode and the solid electrolyte were designed, and 30 mAh-class quasi-solid-state pouch cells were fabricated using them. The improved safety and charge/discharge performance demonstrated the feasibility of quasi-solid-state batteries as a near-future technology.
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.