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Homogeneous and Fast Ion Conduction of PEO-Based Solid-State Electrolyte at Low Temperature
Xu, Shengjun1,2; Sun, Zhenhua1,2; Sun, Chengguo1; Li, Fan3,4; Chen, Ke1,5; Zhang, Zhihao1,2; Hou, Guangjin3; Cheng, Hui-Ming1,6; Li, Feng1,2
Corresponding AuthorCheng, Hui-Ming(cheng@imr.ac.cn) ; Li, Feng(fli@imr.ac.cn)
2020-09-16
Source PublicationADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
Pages9
AbstractPoly(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.
Keywordhomogeneous ion conduction lithium batteries poly ethylene oxide solid-state electrolytes
Funding OrganizationNational Natural Science Foundation of China ; National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Special Projects of the Central Government in Guidance of Local Science and Technology Development ; Key Research Program of the Chinese Academy of Sciences ; Bureau of Industry and Information Technology of Shenzhen
DOI10.1002/adfm.202007172
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51972313] ; National Natural Science Foundation of China[51927803] ; National Natural Science Foundation of China[51525206] ; National Key R&D Program of China[2016YFA0200102] ; National Key R&D Program of China[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 Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000569824500001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140552
Collection中国科学院金属研究所
Corresponding AuthorCheng, Hui-Ming; Li, Feng
Affiliation1.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
Recommended Citation
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,2020:9.
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,9.
MLA Xu, Shengjun,et al."Homogeneous and Fast Ion Conduction of PEO-Based Solid-State Electrolyte at Low Temperature".ADVANCED FUNCTIONAL MATERIALS (2020):9.
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