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Composite Electrolytes Prepared by Improving the Interfacial Compatibility of Organic-Inorganic Electrolytes for Dendrite-Free, Long-Life All-Solid Lithium Metal Batteries
Ma, Xiang1; Liu, Mian1; Wu, Qingping2; Guan, Xiang3; Wang, Fei1; Liu, Hongmei1; Xu, Jun4
2022-11-29
AbstractCompared with simplex ceramic or polymer solid electrolytes, composite solid electrolyte (CSE) is more promising for its better interfacial compatibility to electrode and high ionic conductivity simultaneously. Further, the interfacial compatibility within ceramic and polymer is considered to be more and more critical to the overall performance of solid-state batteries. Avoiding the agglomeration of ceramic particles at high loadings can improve the whole intrinsic characteristic and electrochemical performance of CSEs. Herein, we designed a CSE (EO@LLZTO-PEO), which consists of composite particles (EO@LLZTO) as a filler and polyethylene oxide (PEO) as polymer matrix. EO@LLZTO was prepared by chemically grafting polyethylene glycol monomethyl ether methacrylate (MPEG-MAA) on the micro-sized Li6.4La3Zr1.4Ta0.6O12 (LLZTO) particles. By introducing of polymer containing EO segments onto LLZTO, the interfacial compatibility between LLZTO and PEO matrix is highly enhanced, and the intrinsic Li+ complexation capability of MPEG-MAA is improved, even at the high loading of garnet. EO@LLZTO-PEO shows a high ionic conductivity (1.91 mS cm(-1)), a broad electrochemical window (similar to 5.2 V vs Li/Li+), and a high lithium ion transference number (0.72). The Li/EO@LLZTO-PEO/Li battery also exhibits a long cycle stability (over 1200 h of cycling). Moreover, all-solid-state batteries with LiFePO4 and LiNi0.8Co0.1Mn0.1O2 (NCM811) cathodes exhibit excellent cycling stability and rate performance. Consequently, enhancing the interfacial compatibility between organic and inorganic electrolytes is identified to be one of the crucial strategies for commercial solid-state lithium batteries.
Keywordcomposite solid electrolyte interfacial compatibility garnet modification cycle stability lithium dendrites
DOI10.1021/acsami.2c16174
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Pages12
Corresponding AuthorXu, Jun(xujun@ecust.edu.cn)
Indexed BySCI
WOS IDWOS:000891461300001
Language英语
Funding Projectproject of China Petroleum Engineering Corp., Ltd. (CPEC) ; [2021ZYGC-01-01]
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://124.16.212.251/handle/2HOD01W0/16812
Collection中国科学院重庆绿色智能技术研究院
Corresponding AuthorXu, Jun
Affiliation1.East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
3.Univ Manchester, Dept Mat, Manchester M13 9PL, England
4.East China Univ Sci & Technol, Sch Chem Engn, Shanghai 200237, Peoples R China
Recommended Citation
GB/T 7714
Ma, Xiang,Liu, Mian,Wu, Qingping,et al. Composite Electrolytes Prepared by Improving the Interfacial Compatibility of Organic-Inorganic Electrolytes for Dendrite-Free, Long-Life All-Solid Lithium Metal Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2022:12.
APA Ma, Xiang.,Liu, Mian.,Wu, Qingping.,Guan, Xiang.,Wang, Fei.,...&Xu, Jun.(2022).Composite Electrolytes Prepared by Improving the Interfacial Compatibility of Organic-Inorganic Electrolytes for Dendrite-Free, Long-Life All-Solid Lithium Metal Batteries.ACS APPLIED MATERIALS & INTERFACES,12.
MLA Ma, Xiang,et al."Composite Electrolytes Prepared by Improving the Interfacial Compatibility of Organic-Inorganic Electrolytes for Dendrite-Free, Long-Life All-Solid Lithium Metal Batteries".ACS APPLIED MATERIALS & INTERFACES (2022):12.
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