Ultrathin, flexible, solid polymer composite electrolyte enabled with aligned nanoporous host for lithium batteries

doi:10.1038/s41565-019-0465-3

	Ultrathin, flexible, solid polymer composite electrolyte enabled with aligned nanoporous host for lithium batteries
	Wan, Jiayu 1; Xie, Jin1,2 ; Kong, Xian 3; Liu, Zhe 4; Liu, Kai 1; Shi, Feifei 1; Pei, Allen 1; Chen, Hao 1; Chen, Wei 1; Chen, Jun 1; Zhang, Xiaokun 1; Zong, Linqi 1; Wang, Jiangyan 1; Chen, Long-Qing 4; Qin, Jian 3; Cui, Yi 1,5
	2019-07
发表期刊	NATURE NANOTECHNOLOGY
ISSN	1748-3387
卷号	14 期号:7 页码:705-+
发表状态	已发表
DOI	10.1038/s41565-019-0465-3
摘要	The urgent need for safer batteries is leading research to all-solid-state lithium-based cells. To achieve energy density comparable to liquid electrolyte-based cells, ultrathin and lightweight solid electrolytes with high ionic conductivity are desired. However, solid electrolytes with comparable thicknesses to commercial polymer electrolyte separators (similar to 10 mu m) used in liquid electrolytes remain challenging to make because of the increased risk of short-circuiting the battery. Here, we report on a polymer-polymer solid-state electrolyte design, demonstrated with an 8.6-mu m-thick nanoporous polyimide (PI) film filled with polyethylene oxide/lithium bis(trifluoromethanesulfonyl) imide (PEO/LiTFSI) that can be used as a safe solid polymer electrolyte. The PI film is nonflammable and mechanically strong, preventing batteries from short-circuiting even after more than 1,000 h of cycling, and the vertical channels enhance the ionic conductivity (2.3 x 10(-4) S cm(-1) at 30 degrees C) of the infused polymer electrolyte. All-solid-state lithium-ion batteries fabricated with PI/PEO/LiTFSI solid electrolyte show good cycling performance (200 cycles at C/2 rate) at 60 degrees C and withstand abuse tests such as bending, cutting and nail penetration.
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE)[DE-EE0007803]
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000473760300023
出版者	NATURE PUBLISHING GROUP
WOS关键词	ION-TRANSPORT MECHANISMS ; CONDUCTIVITY ; STATE ; DESIGN ; SAFE
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/61086
专题	物质科学与技术学院_PI研究组_谢琎组
通讯作者	Cui, Yi
作者单位	1.Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA 2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai, Peoples R China 3.Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA 4.Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA 5.Stanford Inst Mat & Energy Sci, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA
推荐引用方式 GB/T 7714	Wan, Jiayu,Xie, Jin,Kong, Xian,et al. Ultrathin, flexible, solid polymer composite electrolyte enabled with aligned nanoporous host for lithium batteries[J]. NATURE NANOTECHNOLOGY,2019,14(7):705-+.
APA	Wan, Jiayu.,Xie, Jin.,Kong, Xian.,Liu, Zhe.,Liu, Kai.,...&Cui, Yi.(2019).Ultrathin, flexible, solid polymer composite electrolyte enabled with aligned nanoporous host for lithium batteries.NATURE NANOTECHNOLOGY,14(7),705-+.
MLA	Wan, Jiayu,et al."Ultrathin, flexible, solid polymer composite electrolyte enabled with aligned nanoporous host for lithium batteries".NATURE NANOTECHNOLOGY 14.7(2019):705-+.