Rational design of biomimetic ant-nest solid polymer electrolyte for high-voltage Li-metal battery with robust mechanical and electrochemical performance

doi:10.1016/j.ensm.2021.05.049

	Rational design of biomimetic ant-nest solid polymer electrolyte for high-voltage Li-metal battery with robust mechanical and electrochemical performance
	Yao, Meng 1,2,3; Zhang, Haitao 1,2,3; Xing, Chunxian 1,3; Li, Qiongguang 2; Tang, Yujie 1,3; Zhang, Fengjie 1,3; Yang, Kun 1,3; Zhang, Suojiang 1,2,3
刊名	ENERGY STORAGE MATERIALS
	2021-10-01
卷号	41 页码:51-60
关键词	Lithium metal battery Solid polymer electrolyte Biomimetic ant-nest architecture Dendrite-free
ISSN号	2405-8297
DOI	10.1016/j.ensm.2021.05.049
英文摘要	Solid polymer electrolytes (SPEs), which simultaneously possess high ionic conductivity, robust mechanical properties and reasonable lithium metal compatibility, are highly desired to accelerate the commercialization of solid lithium metal batteries (SLMBs). Herein, a novel biomimetic ant-nest SPE (BASE) is prepared via an in-situ sequential nonhydrolytic reaction of tetraethoxysilane in the poly(vinylidene fluoride-co-hexafluoropropene)-hexafluoropropylene (P(VDF-HFP)) matrix to improve the cyclability of high-voltage SLMBs. BASE, which exhibits a biomimetic ant-nest architecture, not only has high ionic conductivity (0.43 mS cm(-1) at 20 degrees C), but also delivers an outstanding deformation stability without cracking at a 271.17% compressive strain. As a consequence, the Li/LiFePO4 and Li/LiMn 0.75 Fe0.25PO4 (LMFP) SLMBs show a remarkable cycling stability from room temperature (RT) to 80 degrees C. As-prepared LMFP based SLMBs exhibit excellent cyclability with 90.9% capacity retention (140.9 mAh g(-1) to 154.9 mAh g(-1)) after 200 cycles at 4.2 V under RT. In addition, the Li/LiFePO4 pouch cells exhibit excellent cyclability (nearly 100% capacity retention after 50 cycles) and profound flexibility at RT for potential practical applications. Undoubtedly, this novel BASE opens a new route for designing biomimetic SPEs to develop next-generation SLMBs with high energy density.
资助项目	National Key Research and Development Program of China[2019YFA0705601] ; National Nat-ural Science Foundation of China[21878308] ; Major Pro-gram of National Natural Science Foundation of China[21890762] ; K.C.Wong Education Foundation[GJTD2018-04]
WOS关键词	WIDE TEMPERATURE-RANGE ; LITHIUM-METAL ; IONIC-LIQUID ; HIGH-ENERGY ; DENDRITE-FREE ; HYBRID ELECTROLYTES ; CONDUCTIVITY ; ANODE ; CAPABILITY ; CHALLENGES
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000685118300007
资助机构	National Key Research and Development Program of China ; National Nat-ural Science Foundation of China ; Major Pro-gram of National Natural Science Foundation of China ; K.C.Wong Education Foundation
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/49934]
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, 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
推荐引用方式 GB/T 7714	Yao, Meng,Zhang, Haitao,Xing, Chunxian,et al. Rational design of biomimetic ant-nest solid polymer electrolyte for high-voltage Li-metal battery with robust mechanical and electrochemical performance[J]. ENERGY STORAGE MATERIALS,2021,41:51-60.
APA	Yao, Meng.,Zhang, Haitao.,Xing, Chunxian.,Li, Qiongguang.,Tang, Yujie.,...&Zhang, Suojiang.(2021).Rational design of biomimetic ant-nest solid polymer electrolyte for high-voltage Li-metal battery with robust mechanical and electrochemical performance.ENERGY STORAGE MATERIALS,41,51-60.
MLA	Yao, Meng,et al."Rational design of biomimetic ant-nest solid polymer electrolyte for high-voltage Li-metal battery with robust mechanical and electrochemical performance".ENERGY STORAGE MATERIALS 41(2021):51-60.