globalchange  > 气候变化与战略
DOI: 10.1073/pnas.1809187115
论文题名:
Elastic and Li-ion–percolating hybrid membrane stabilizes Li metal plating
作者: Pang Q.; Zhou L.; Nazar L.F.
刊名: Proceedings of the National Academy of Sciences of the United States of America
ISSN: 0027-8424
出版年: 2018
卷: 115, 期:49
起始页码: 12389
结束页码: 12394
语种: 英语
英文关键词: Electrolyte-impermeable ; Li metal protective flexible membrane ; Li-ion battery ; Li-ion percolation membrane ; Lithium metal anode
Scopus关键词: electrolyte ; lithium ion ; polymer ; Article ; cell cycle ; cell engineering ; cell growth ; controlled study ; elasticity ; electrochemistry ; ion transport ; membrane stabilization ; membrane structure ; microtechnology ; priority journal
英文摘要: Lithium metal batteries are capable of revolutionizing the battery marketplace for electrical vehicles, owing to the high capacity and low voltage offered by Li metal. Current exploitation of Li metal electrodes, however, is plagued by their exhaustive parasitic reactions with liquid electrolytes and dendritic growth, which pose concerns to both cell performance and safety. We demonstrate that a hybrid membrane, both elastic and Li+-ion percolating, can stabilize Li plating/stripping with high Coulombic efficiency. The compact packing of a Li+ solid electrolyte phase offers percolated Li+-conducting channels and the consequent infiltration of an elastic polymer endows membrane flexibility to accommodate volume changes. The protected electrode allows Li plating with 95.8% efficiency for 200 cycles and stable operation of an LTOjLi cell for 2,000 cycles. This rationally structured membrane represents an interface engineering approach toward stabilized Li metal electrodes. © 2018 National Academy of Sciences. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/163635
Appears in Collections:气候变化与战略

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作者单位: Pang, Q., Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON N2L 3G1, Canada; Zhou, L., Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON N2L 3G1, Canada; Nazar, L.F., Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, ON N2L 3G1, Canada

Recommended Citation:
Pang Q.,Zhou L.,Nazar L.F.. Elastic and Li-ion–percolating hybrid membrane stabilizes Li metal plating[J]. Proceedings of the National Academy of Sciences of the United States of America,2018-01-01,115(49)
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