Ultrathin, flexible, solid polymer composite electrolyte enabled with aligned nanoporous host for lithium batteries
Wan, Jiayu1; Xie, Jin1,2; Kong, Xian3; Liu, Zhe4; Liu, Kai1; Shi, Feifei1; Pei, Allen1; Chen, Hao1; Chen, Wei1; Chen, Jun1; Zhang, Xiaokun1; Zong, Linqi1; Wang, Jiangyan1; Chen, Long-Qing4; Qin, Jian3; Cui, Yi1,5
2019-07
Source PublicationNATURE NANOTECHNOLOGY
ISSN1748-3387
Volume14Issue:7Pages:705-+
Status已发表
DOI10.1038/s41565-019-0465-3
AbstractThe 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.
Indexed BySCI ; EI
Language英语
Funding ProjectDepartment of Energy, Office of Energy Efficiency and Renewable Energy (EERE)[DE-EE0007803]
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000473760300023
PublisherNATURE PUBLISHING GROUP
WOS KeywordION-TRANSPORT MECHANISMS ; CONDUCTIVITY ; STATE ; DESIGN ; SAFE
Original Document TypeArticle
Citation statistics
Cited Times:305[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://kms.shanghaitech.edu.cn/handle/2MSLDSTB/61086
Collection物质科学与技术学院_PI研究组_谢琎组
Corresponding AuthorCui, Yi
Affiliation1.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
Recommended Citation
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-+.
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