中文版 | English
Title

The beneficial effects of black phosphorous modification of the anode current collector in Li-metal free Li2S-based batteries

Author
Corresponding AuthorHuang,Limin; Lee,Jim Yang
Publication Years
2022-12-01
DOI
Source Title
ISSN
2468-6069
EISSN
2468-6069
Volume30
Abstract
Li–S batteries assembled without a lithium metal anode can significantly increase the battery specific energy and obviate the safety issue of excess Li metal in the battery. In this study we found that a black phosphorous (BP) modified cooper foil current collector could provide a beneficial anode solid-electrolyte-interface (SEI) to enable the charging and discharging of Li-metal free LiS-based batteries at higher C rates. The BP modification is effective in several aspects: the lithiophilicity of BP reduces the energy barrier in Li metal deposition and stripping during battery charge and discharge. The reactions between BP and lithium polysulfides also form LiPS in the anode SEI layer. Since LiPS has a high ionic conductivity for Li diffusion, the Li plating/stripping efficiency is improved. The synergy of the lithiophilicity of BP and a LiPS-rich anode interphase layer was demonstrated in Li-metal free LiS batteries, where the capacity retention over 100 cycles is 64.8% at the 0.2 C rate. The findings here show that current collector modifications should attend to multiple functionalities in order to be effective for the Li-metal free LiS batteries.
Keywords
URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
Southern University of Science and Technology (SUSTech) startup fund through the Shenzhen Peacock Talent program, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power[2018B030322001] ; Guangdong Provincial Key Laboratory of Catalysis[2020B121201002] ; Shenzhen Clean Energy Research Institute[CERI-KY-2019-0 03] ; Shenzhen Key Laboratory of Solid-State Batteries[ZDSYS20180208184346531]
WOS Research Area
Chemistry ; Energy & Fuels ; Materials Science
WOS Subject
Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS Accession No
WOS:000891933300008
Publisher
Scopus EID
2-s2.0-85141224558
Data Source
Scopus
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/411779
DepartmentDepartment of Chemistry
Affiliation
1.Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China
2.Department of Chemical & Biomolecular Engineering,National University of Singapore,Singapore,117585,Singapore
First Author AffilicationDepartment of Chemistry
Corresponding Author AffilicationDepartment of Chemistry
First Author's First AffilicationDepartment of Chemistry
Recommended Citation
GB/T 7714
Zhao,Yun,Ye,Hualin,Zhang,Huanyu,et al. The beneficial effects of black phosphorous modification of the anode current collector in Li-metal free Li2S-based batteries[J]. Materials Today Energy,2022,30.
APA
Zhao,Yun,Ye,Hualin,Zhang,Huanyu,Zhao,Dan,Huang,Limin,&Lee,Jim Yang.(2022).The beneficial effects of black phosphorous modification of the anode current collector in Li-metal free Li2S-based batteries.Materials Today Energy,30.
MLA
Zhao,Yun,et al."The beneficial effects of black phosphorous modification of the anode current collector in Li-metal free Li2S-based batteries".Materials Today Energy 30(2022).
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