A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator

doi:10.1039/c8ra02140f

	A bidirectional growth mechanism for a stable lithium anode by a platinum nanolayer sputtered on a polypropylene separator
	Wen, Kaihua 1,2; Liu, Lili 3; Chen, Shimou 1; Zhang, Suojiang 1
	2018
发表期刊	RSC ADVANCES
ISSN	2046-2069
卷号	8 期号:23 页码:13034-13039
摘要	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.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1039/c8ra02140f
收录类别	SCI
语种	英语
关键词[WOS]	METAL ANODES ; SOLID ELECTROLYTES ; BATTERIES ; DEPOSITION ; STABILITY ; ELECTRODEPOSITION ; NUCLEATION ; MORPHOLOGY ; LIQUID ; ANIONS
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
项目资助者	"Strategic Priority Research Program" of the Chinese Academy of Sciences(XDA09010103) ; Beijing Municipal Science and Technology Project(D171100005617001) ; Henan province science and technology cooperation project(172106000061) ; National Natural Science Foundation of China(91534109 ; National Key Projects for Fundamental Research and Development of China(2017YFB0102200) ; 91434203)
WOS记录号	WOS:000429450000063
引用统计
文献类型	期刊论文
条目标识符	http://ir.ipe.ac.cn/handle/122111/24151
专题	多相复杂系统国家重点实验室
作者单位	1.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
推荐引用方式 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.