Ultralong cycling and wide temperature range of lithium metal batteries enabled by solid polymer electrolytes interpenetrated with a poly(liquid crystal) network

doi:10.1039/d0ta10932k

	Ultralong cycling and wide temperature range of lithium metal batteries enabled by solid polymer electrolytes interpenetrated with a poly(liquid crystal) network
	Yao, Meng 1,2; Zhang, Haitao 1,2; Dong, Kun 1; Li, Bosen 1; Xing, Chunxian 1; Dang, Manyu 3; Zhang, Suojiang 1,2
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2021-03-14
卷号	9 期号:10 页码:6232-6241
ISSN号	2050-7488
DOI	10.1039/d0ta10932k
英文摘要	Solid polymer electrolytes (SPEs) that can work over a wide temperature range are highly desired to accelerate the commercial applications of solid lithium metal batteries (SLMBs). Herein, novel SPEs were fabricated via the in situ polymerization and immobilization of a nematic liquid crystal (LC) into a poly(vinylidene fluoride-co-hexafluoropropene)-hexafluoropropylene (P(VDF-HFP)) network under in situ UV irradiation in the presence of an ionic liquid (IL). The migration of Li+ ions in as-formed SPEs was enhanced intensively on account of the interpretation of the poly(liquid crystal) (PLC) network, which was confirmed by FTIR and DFT calculations. As-developed SPEs exhibit an ultra-high ionic conductivity of 1.79 mS cm(-1) at 20 degrees C, a high lithium-ion transference number of 0.64, and an electrochemical window up to 5.0 V. Due to these outstanding performances, Li/Li symmetrical cells containing as-obtained SPEs delivered an outstanding cycling stability of over 3500 h under a current density of 0.2 mA cm(-2). Moreover, a Li/LiFePO4 battery showed desirable cycling stability from 0 degrees C to 100 degrees C. It exhibited a high discharge capacity of 165.1 mA h g(-1), a high capacity retention of 95.1% after 500 cycles, and a high coulombic efficiency above 99.5% even under a 3C rate at 100 degrees C. Undoubtedly, these novel SPEs have great potential to be used in next-generation SLMBs.
资助项目	National Key Research and Development Program of China[2016YFB0100303] ; National Natural Science Foundation of China[21878308] ; Major Program of National Natural Science Foundation of China[21890762]
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000631985900024
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Major Program of National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48001]
专题	中国科学院过程工程研究所
通讯作者	Zhang, Haitao; Zhang, Suojiang
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.UCL, Dept Elect & Elect, London, England
推荐引用方式 GB/T 7714	Yao, Meng,Zhang, Haitao,Dong, Kun,et al. Ultralong cycling and wide temperature range of lithium metal batteries enabled by solid polymer electrolytes interpenetrated with a poly(liquid crystal) network[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021,9(10):6232-6241.
APA	Yao, Meng.,Zhang, Haitao.,Dong, Kun.,Li, Bosen.,Xing, Chunxian.,...&Zhang, Suojiang.(2021).Ultralong cycling and wide temperature range of lithium metal batteries enabled by solid polymer electrolytes interpenetrated with a poly(liquid crystal) network.JOURNAL OF MATERIALS CHEMISTRY A,9(10),6232-6241.
MLA	Yao, Meng,et al."Ultralong cycling and wide temperature range of lithium metal batteries enabled by solid polymer electrolytes interpenetrated with a poly(liquid crystal) network".JOURNAL OF MATERIALS CHEMISTRY A 9.10(2021):6232-6241.