CAS OpenIR  > 多相复杂系统国家重点实验室
A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator
Wen, Kaihua1,2; Liu, Lili3; Chen, Shimou1; Zhang, Suojiang1
2018
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume8Issue:23Pages:13034-13039
Abstract

The issue of uncontrollable Li dendrite growth, caused by irregular lithium deposition, restricts the wide applications of Li metal based high energy batteries. In this paper, a polypropylene separator with a sputtered platinum nanolayer has been developed to improve the stability of the Li metal anodes. It was found that cells using the modified separators resulted in a smooth Li surface and a stable electrode-electrolyte interface. On the one hand, platinum nanolayers can enhance the mechanical properties and micro-structures of commercial polypropylene separators. On the other hand, platinum nanolayers provide stable Li deposition during repeated charging/discharging by a bidirectional growth mechanism. After long-time cycling, the dendrites from opposite directions and dead Li are integrated into a flat and dense new-formed Li anode, decreasing the risk of low Coulombic efficiency and cycling instability that may end in cell failure. This design may provide new ideas in next-generation energy storage systems for advanced stable metallic battery technologies.

SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c8ra02140f
Indexed BySCI
Language英语
WOS KeywordMetal Anodes ; Solid Electrolytes ; Batteries ; Deposition ; Stability ; Electrodeposition ; Nucleation ; Morphology ; Liquid ; Anions
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000429450000063
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24151
Collection多相复杂系统国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing Key Lab Ionic Liquids Clean Proc, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Beijing Technol & Business Univ, Sch Sci, China Natl Light Ind, Key Lab Cosmet, Beijing 100048, Peoples R China
Recommended Citation
GB/T 7714
Wen, Kaihua,Liu, Lili,Chen, Shimou,et al. A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator[J]. RSC ADVANCES,2018,8(23):13034-13039.
APA Wen, Kaihua,Liu, Lili,Chen, Shimou,&Zhang, Suojiang.(2018).A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator.RSC ADVANCES,8(23),13034-13039.
MLA Wen, Kaihua,et al."A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator".RSC ADVANCES 8.23(2018):13034-13039.
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