Highly conductive polymer electrolytes based on PAN-PEI nanofiber membranes with in situ gelated liquid electrolytes for lithium-ion batteries

doi:10.1016/j.polymer.2021.124038

	Highly conductive polymer electrolytes based on PAN-PEI nanofiber membranes with in situ gelated liquid electrolytes for lithium-ion batteries
	Wang, Xuyao 1,2,3; Fang, Yingjun 3; Yan, Xiaodan 2,3; Liu, Shuling 2,3; Zhao, Xinyue 3; Zhang, Lingzhi 1,3
刊名	POLYMER
	2021-09-16
卷号	230 页码:8
关键词	Polymer electrolyte Polyacrylonitrile Polyethylenimine Lithium-ion battery
ISSN号	0032-3861
DOI	10.1016/j.polymer.2021.124038
通讯作者	Zhang, Lingzhi(lzzhang@ms.giec.ac.cn)
英文摘要	The development of solid state electrolytes is considered as an effective approach to build safer lithium-ion batteries by replacing the conventional liquid electrolytes. However, the solid state electrolytes face continuous challenges to improve their ionic conductivities and mechanical properties. Herein, we report the synthesis of novel polymer electrolytes based on cross-linked polyacrylonitrile-polyethylenimine (PAN-PEI) nanofiber membranes infiltrated with in-situ gelated electrolytes using tripropylene glycol diacrylate as crosslinking agent in the organic carbonate-based liquid electrolytes. The PAN-PEI nanofiber membranes with different mass ratios of PAN/PEI prepared by electrospinning method are constructed with entangled nanofibers of an average diameter of similar to 600 nm. The optimized PAN-PEI based electrolyte has a high ionic conductivity up to 3.39 mS cm(-1) at room-temperature and decent tensile strength of 9.36 MPa. Linear sweep voltammetry shows that the polymer electrolyte also has a wide electrochemical window of 5.4 V (vs. Li/Li+). This polymer electrolyte exhibits excellent cycling stability even in the high energy density of LiNi0.8Co0.1Mn0.1O2/Graphite, delivering an initial discharge capacity of 175 mAh g(-1) at 0.5 C with a capacity retention of 91.4% after 200 cycles.
资助项目	K. C. Wong Education Foundation ; National Natural Science Foundation of China[21573239] ; National Natural Science Foundation of China[22075288] ; Guangdong Provincial Program of Special Support for High-Level Talents[2014TX01N014]
WOS关键词	POLYETHYLENIMINE ; SEPARATOR
WOS研究方向	Polymer Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000694890600005
资助机构	K. C. Wong Education Foundation ; National Natural Science Foundation of China ; Guangdong Provincial Program of Special Support for High-Level Talents
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33848]
专题	中国科学院广州能源研究所
通讯作者	Zhang, Lingzhi
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xuyao,Fang, Yingjun,Yan, Xiaodan,et al. Highly conductive polymer electrolytes based on PAN-PEI nanofiber membranes with in situ gelated liquid electrolytes for lithium-ion batteries[J]. POLYMER,2021,230:8.
APA	Wang, Xuyao,Fang, Yingjun,Yan, Xiaodan,Liu, Shuling,Zhao, Xinyue,&Zhang, Lingzhi.(2021).Highly conductive polymer electrolytes based on PAN-PEI nanofiber membranes with in situ gelated liquid electrolytes for lithium-ion batteries.POLYMER,230,8.
MLA	Wang, Xuyao,et al."Highly conductive polymer electrolytes based on PAN-PEI nanofiber membranes with in situ gelated liquid electrolytes for lithium-ion batteries".POLYMER 230(2021):8.