CAS OpenIR
Solid polymer electrolyte with in-situ generated fast Li+ conducting network enable high voltage and dendrite-free lithium metal battery
Yao, Meng1,2,3; Ruan, Qinqin1,2,3; Yu, Tianhao1,3; Zhang, Haitao1,2,3,4; Zhang, Suojiang1,2,3
2022
Source PublicationENERGY STORAGE MATERIALS
ISSN2405-8297
Volume44Pages:93-103
AbstractSolid polymer electrolytes (SPEs) with profound compatibility for high-voltage cathodes and reliable operation over a board temperature range are in urgent demand for the practical application of solid lithium metal batteries (SLMBs). In this study, a SPE containing interconnected fast Li+ conducting network was constructed via an in-situ hydrolysis of tetraethoxysilane (TEOS) within polyacrylonitrile (PAN) matrix to intensify the thermal stability of SLMBs. The in-situ formed interconnected inorganic network not only acts as a robust backbone for the whole SPE, but also furnishes sufficient continuous surfaces with Lewis-acidic sites, which will promote the dissociation of Li salt. As a consequence, the fabricated SPE exhibits an promising ionic conductivity of similar to 0.35 mS cm(-1), an attractive Young' modulus of 8.627 Gpa and a satisfactory lithium-ion transference number of 0.52. Solidstate nuclear magnetic resonance (S-NMR) and X-ray photoelectron spectroscopy (XPS) techniques were used to unravel the interactions among Li+ ions, PAN and as-formed SiO2. Based on the in-situ formed SPE, a Li/LiFePO4 SLMB presents an excellent cycle stability from 20 to 80 degrees C and a Li/LiNi0.6Mn0.2Co0.2O2 SLMB shows a steady discharge capacity of 173.1 mAh g(-1) with 93.8 % retention after 200 cycles at 4.3 V. Additionally, the Li/LiFePO4 pouch cell also delivers a stable cyclability and superior safety for practical applications. The design strategy of our work provides a rigid - flexible coupling dynamic strategy to fabricate SPEs for wide-temperature applicability and high energy density SLMBs.
KeywordSolid polymer electrolytes Li+ conducting network Lithium metal batteries Dendrite-free
DOI10.1016/j.ensm.2021.10.009
Language英语
WOS KeywordWIDE TEMPERATURE-RANGE ; COMPOSITE ELECTROLYTES ; IONIC LIQUID ; IONOGEL ELECTROLYTE ; HIGH-PERFORMANCE ; ANODE ; ANION ; SALT ; MECHANISMS ; BEHAVIOR
Funding ProjectNational Key Research and Development Program of China[2019YFA0705601] ; National Natural Science Foundation of China[21878308] ; Key Science and Technology Special Project of Henan Province[202102210106] ; Zhengzhou major Science and technology projects[2019CXZX0074] ; Key Program of Chinese Academy of Sciences[ZDRW_CN_2020-1] ; Major Program of National Natural Science Foundation of China[21890762] ; Science Fund for Creative Research Groups of the National Natural Science Foundation of China[21921005] ; K.C.Wong Education Foundation[GJTD-2018-04] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM-2019-A15]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Key Science and Technology Special Project of Henan Province ; Zhengzhou major Science and technology projects ; Key Program of Chinese Academy of Sciences ; Major Program of National Natural Science Foundation of China ; Science Fund for Creative Research Groups of the National Natural Science Foundation of China ; K.C.Wong Education Foundation ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences
WOS IDWOS:000711201300009
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/50809
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Haitao; Zhang, Suojiang
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
4.Zhengzhou Inst Emerging Ind Technol, Henan Key Lab Energy Storage Mat & Proc, Zhengzhou 450003, Peoples R China
Recommended Citation
GB/T 7714
Yao, Meng,Ruan, Qinqin,Yu, Tianhao,et al. Solid polymer electrolyte with in-situ generated fast Li+ conducting network enable high voltage and dendrite-free lithium metal battery[J]. ENERGY STORAGE MATERIALS,2022,44:93-103.
APA Yao, Meng,Ruan, Qinqin,Yu, Tianhao,Zhang, Haitao,&Zhang, Suojiang.(2022).Solid polymer electrolyte with in-situ generated fast Li+ conducting network enable high voltage and dendrite-free lithium metal battery.ENERGY STORAGE MATERIALS,44,93-103.
MLA Yao, Meng,et al."Solid polymer electrolyte with in-situ generated fast Li+ conducting network enable high voltage and dendrite-free lithium metal battery".ENERGY STORAGE MATERIALS 44(2022):93-103.
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