A Si-doped flexible self-supporting comb-like polyethylene glycol copolymer (Si-PEG) film as a polymer electrolyte for an all solid-state lithiumion battery

doi:10.1039/c7ta07741f

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	A Si-doped flexible self-supporting comb-like polyethylene glycol copolymer (Si-PEG) film as a polymer electrolyte for an all solid-state lithiumion battery
	Ji, Xiaoxiao 1; Zeng, Huihui 1; Gong, Xianjing 2; Tsai, Fangchang 1; Jiang, Tao 1; Li, Robert K. Y.2; Shi, Hengchong 3; Luan, Shifang 3; Shi, Dean 1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2017-12-14
卷号	5 期号:46 页码:24444-24452
ISSN号	2050-7488
DOI	10.1039/c7ta07741f
英文摘要	Herein, a self-supporting comb-like Si-PEG copolymer with flexible Si-O-C bonds in the main chain and pending short PEG chains as the side chain was synthesized to improve the low temperature performance and overcome the quandary between good mechanical and electrochemical properties of the polymer electrolyte in lithium-ion batteries. The tensile strength of Si-PEG polymer electrolytes (SPH15) is 0.8 MPa at 30 degrees C, which is high enough to inhibit the growth of lithium dendrites. The ion conductivities of Si-PEG (SPH15) are 1.2 x 10(-4) S cm(-1) at 30 degrees C and 3.2 x 10(-5) S cm(-1) at 10 degrees C, which are one order of magnitude higher than those for PEG-based copolymer electrolytes without Si doping. The assembled LiFePO4/SPH15/Li half batteries can deliver the specific capacities of 84 mA h g(-1) at 10 degrees C and present 75% capacity retention after 500 charge-discharge cycles at 0.5C.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000416340300048
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45117]
专题	中国科学院化学研究所
通讯作者	Tsai, Fangchang; Li, Robert K. Y.; Shi, Dean
作者单位	1.Hubei Univ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Minist Educ,Key Lab Green Preparat & Applicat Fun, Hubei Key Lab Polymer Mat,Sch Mat Sci & Engn, Wuhan 430062, Hubei, Peoples R China 2.City Univ Hong Kong, Dept Mat Sci & Engn, Tat Chee Ave, Kowloon, Hong Kong, Peoples R China 3.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Changchun 130022, Jilin, Peoples R China
推荐引用方式 GB/T 7714	Ji, Xiaoxiao,Zeng, Huihui,Gong, Xianjing,et al. A Si-doped flexible self-supporting comb-like polyethylene glycol copolymer (Si-PEG) film as a polymer electrolyte for an all solid-state lithiumion battery[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(46):24444-24452.
APA	Ji, Xiaoxiao.,Zeng, Huihui.,Gong, Xianjing.,Tsai, Fangchang.,Jiang, Tao.,...&Shi, Dean.(2017).A Si-doped flexible self-supporting comb-like polyethylene glycol copolymer (Si-PEG) film as a polymer electrolyte for an all solid-state lithiumion battery.JOURNAL OF MATERIALS CHEMISTRY A,5(46),24444-24452.
MLA	Ji, Xiaoxiao,et al."A Si-doped flexible self-supporting comb-like polyethylene glycol copolymer (Si-PEG) film as a polymer electrolyte for an all solid-state lithiumion battery".JOURNAL OF MATERIALS CHEMISTRY A 5.46(2017):24444-24452.