ShanghaiTech University Knowledge Management System
Homogeneous and Fast Ion Conduction of PEO-Based Solid-State Electrolyte at Low Temperature | |
2020-12 | |
发表期刊 | ADVANCED FUNCTIONAL MATERIALS (IF:18.5[JCR-2023],19.6[5-Year]) |
ISSN | 1616-301X |
发表状态 | 已发表 |
DOI | 10.1002/adfm.202007172 |
摘要 | Poly(ethylene oxide) (PEO)-based electrolytes are promising for all-solid-state batteries but can only be used above room temperature due to the high-degree crystallization of PEO and the intimate affinity between ethylene oxide (EO) chains and lithium ions. Here, a homogeneous-inspired design of PEO-based solid-state electrolytes with fast ion conduction is proposed. The homogeneous PEO-based solid-state electrolyte with an adjusted succinonitrile (SN) and PEO molar ratio simultaneously suppresses the PEO crystallization and mitigates the affinity between EO and Li+. By adjusting the molar ratio of SN to PEO (SN:EO approximate to 1:4), channels providing fast Li(+)transport are formed within the homogeneous solid-state polymer electrolyte, which increases the ionic conductivity by 100 times and enables their application at a low temperature (0-25 degrees C), together with the uniform lithium deposition. This modified PEO-based electrolyte also enables a LiFePO(4)cathode to achieve a superior Coulombic efficiency (>99%) and have a long life (>750 cycles) at room temperature. Moreover, even at a low temperature of 0 degrees C, 82% of its room-temperature capacity remains, demonstrating the great potential of this electrolyte for practical solid-state lithium battery applications. |
关键词 | homogeneous ion conduction lithium batteries poly ethylene oxide solid-state electrolytes |
收录类别 | SCI ; SCIE ; EI |
资助项目 | National Natural Science Foundation of China[51972313][51927803][51525206] ; National Key R&D Program of China[2016YFA0200102][2016YFB0100100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA22010602] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[Y201942] ; Special Projects of the Central Government in Guidance of Local Science and Technology Development[2020JH6/10500024] ; Key Research Program of the Chinese Academy of Sciences[KGZD-EW-T06] ; Bureau of Industry and Information Technology of Shenzhen[201901171523] |
WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
WOS类目 | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
WOS记录号 | WOS:000569824500001 |
出版者 | WILEY-V C H VERLAG GMBH |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/123557 |
专题 | 物质科学与技术学院_博士生 |
通讯作者 | Cheng, Hui-Ming; Li, Feng |
作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China; 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China; 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China; 4.Univ Chinese Acad Sci, Beijing 100039, Peoples R China; 5.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China; 6.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen Geim Graphene Ctr, Shenzhen 518055, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Shengjun,Sun, Zhenhua,Sun, Chengguo,et al. Homogeneous and Fast Ion Conduction of PEO-Based Solid-State Electrolyte at Low Temperature[J]. ADVANCED FUNCTIONAL MATERIALS,2020. |
APA | Xu, Shengjun.,Sun, Zhenhua.,Sun, Chengguo.,Li, Fan.,Chen, Ke.,...&Li, Feng.(2020).Homogeneous and Fast Ion Conduction of PEO-Based Solid-State Electrolyte at Low Temperature.ADVANCED FUNCTIONAL MATERIALS. |
MLA | Xu, Shengjun,et al."Homogeneous and Fast Ion Conduction of PEO-Based Solid-State Electrolyte at Low Temperature".ADVANCED FUNCTIONAL MATERIALS (2020). |
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