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The interfacial evolution between polycarbonate-based polymer electrolyte and Li-metal anode
Wang, Chen1,2; Zhang, Huanrui1; Li, Jiedong1; Chai, Jingchao1,2; Dong, Shanmu1; Cui, Guanglei1
2018-09-01
Source PublicationJOURNAL OF POWER SOURCES
ISSN0378-7753
Volume397Pages:157-161
AbstractSolid polymer electrolyte is strongly considered to be one of the key materials to solve safety problem of high energy lithium batteries caused by flammable liquid organic carbonate solvent, while the development and application of solid polymer electrolytes are seriously restricted by the low ambient temperature ionic conductivity. Recently, aliphatic polycarbonate-based electrolytes have been reported to possess high ionic conductivity at ambient temperature. Herein we choose poly (propylene carbonate) as a model to investigate the origin of the high ionic conductivity of polycarbonate-based polymer electrolytes. Our results prove that poly (propylene carbonate) degrades to micromolecular segments when contacts with Li-metal anode. The depolymerization products can infiltrate the interface and swell the electrolyte to develop the amorphous state so as to reduce both interfacial and bulk resistance. As scaffold of the electrolyte, cellulose can limit this reaction at the interface by physical obstruction. The hydroxyl units can also quench the lithium alkoxide intermediate to suppress further degradation, guaranteeing the security of the system. This study provides a profound understanding of the composition, reaction and evolution of the interface between polymer electrolyte and Li-metal anode, which sheds new light on the interface construction of ambient-temperature solid-state lithium metal batteries.
KeywordInterface Evolution Polymer electrolytes Li-metal anode
DOI10.1016/j.jpowsour.2018.07.008
WOS KeywordRECHARGEABLE BATTERIES ; PROPYLENE CARBONATE ; IONIC-CONDUCTIVITY ; POLY(ETHYLENE OXIDE) ; LITHIUM BATTERIES ; INTERPHASE LAYER ; FIBERS ; LIQUID ; SALTS
Language英语
Funding ProjectNational Science Fund for Distinguished Young Scholars[51625204] ; National Natural Science Foundation of China[51703236] ; Youth Innovation Promotion Association of CAS[2016193] ; China Postdoctoral Science Foundation[2017M612366] ; Key research and development plan of Shandong Province P. R. China[2018GGX104016] ; Key Scientific and Technological Innovation Project of Shandong[2017CXZC0505]
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
Funding OrganizationNational Science Fund for Distinguished Young Scholars ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of CAS ; China Postdoctoral Science Foundation ; Key research and development plan of Shandong Province P. R. China ; Key Scientific and Technological Innovation Project of Shandong
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS IDWOS:000445317900020
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qibebt.ac.cn/handle/337004/11647
Collection中国科学院青岛生物能源与过程研究所
Corresponding AuthorDong, Shanmu; Cui, Guanglei
Affiliation1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao Ind Energy Storage Technol Inst, Qingdao 266101, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Chen,Zhang, Huanrui,Li, Jiedong,et al. The interfacial evolution between polycarbonate-based polymer electrolyte and Li-metal anode[J]. JOURNAL OF POWER SOURCES,2018,397:157-161.
APA Wang, Chen,Zhang, Huanrui,Li, Jiedong,Chai, Jingchao,Dong, Shanmu,&Cui, Guanglei.(2018).The interfacial evolution between polycarbonate-based polymer electrolyte and Li-metal anode.JOURNAL OF POWER SOURCES,397,157-161.
MLA Wang, Chen,et al."The interfacial evolution between polycarbonate-based polymer electrolyte and Li-metal anode".JOURNAL OF POWER SOURCES 397(2018):157-161.
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