Sericin protein as a conformal protective layer to enable air-endurable Li metal anodes and high-rate Li-S batteries

doi:10.1016/j.jpowsour.2019.02.033

SIC OpenIR

	Sericin protein as a conformal protective layer to enable air-endurable Li metal anodes and high-rate Li-S batteries
	Wu, Han; Wu, Qingping; Chu, Fulu; Hu, Jiulin; Cui, Yanhua; Yin, Congling; Li, Chilin
	2019-04-15
Source Publication	JOURNAL OF POWER SOURCES
ISSN	0378-7753
Volume	419 Pages:72
Subtype	Article
Abstract	As the most promising anode material for next-generation Li batteries, Li metal never loses the academic attention due to its inherent superiority in high theoretical capacity and low redox potential. However, Li dendrites formed during cycling stubbornly hinder the pace of commercializing high-energy-density Li metal batteries. Here sericin endowed with abundant lithiophilic and anionphilic functional groups on its polypeptide chain is proposed as a conformal protective coating on both Cu and Li metal anodes. The resulting increase of Li-ion transference number (as high as 0.876) and mitigation of tip effect are favorable for the homogeneous Li deposition in island-like or lateral growth mode at electrode/electrolyte interface. Long cycle life (335 cycles) and high Coulombic efficiency (98%) are obtained in sericin decorated Li/Cu cells. Even under extremely high current density of 10 mA cm(-2) based on a large capacity of 5 mAh cm(-2), the sericin decorated Li anode also enables a superior cycle stability (160 cycles) in the symmetric cells. The conformal sericin coating effectively inhibits the corrosion of air to Li metal. Sericin modified Li-S batteries exhibit greatly enhanced rate performance (452.8 mAh g(-1) at 5 C) and cycling performance (667.8 mAh g(-1) after 520 cycles at 1 C).
Keyword	Sericin protein Li metal protection Li dendrite suppression Li-S batteries
DOI	10.1016/j.jpowsour.2019.02.033
Language	英语
WOS Research Area	Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
Publisher	ELSEVIER SCIENCE BV
Citation statistics
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/27180
Collection	中国科学院上海硅酸盐研究所
Recommended Citation GB/T 7714	Wu, Han,Wu, Qingping,Chu, Fulu,et al. Sericin protein as a conformal protective layer to enable air-endurable Li metal anodes and high-rate Li-S batteries[J]. JOURNAL OF POWER SOURCES,2019,419:72.
APA	Wu, Han.,Wu, Qingping.,Chu, Fulu.,Hu, Jiulin.,Cui, Yanhua.,...&Li, Chilin.(2019).Sericin protein as a conformal protective layer to enable air-endurable Li metal anodes and high-rate Li-S batteries.JOURNAL OF POWER SOURCES,419,72.
MLA	Wu, Han,et al."Sericin protein as a conformal protective layer to enable air-endurable Li metal anodes and high-rate Li-S batteries".JOURNAL OF POWER SOURCES 419(2019):72.

Files in This Item:
There are no files associated with this item.

If you have any objections to this item, please fill out the form below and the administrator will contact you as soon as possible.
Content:
Email：	*
Institution:
Verification Code:	Refresh

Any comments and suggestions are welcomed.
Title:	*
Content:
Email：	*
Verification Code:	Refresh

中国科学院上海硅酸盐研究所机构知识库