期刊
FRONTIERS IN ENERGY RESEARCH
卷 9, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fenrg.2021.626596
关键词
metal atoms; decorated; carbon nanomaterials; Li-S batteries; Li-Se batteries
资金
- National Natural Science Foundation of China [51902036]
- Natural Science Foundation of Chongqing Science and Technology Commission [cstc2019jcyj-msxm1407]
- Natural Science Foundation of Chongqing Technology and Business University [1952009]
- Venture and Innovation Support Program for Chongqing Overseas Returnees [CX2018129]
- Science and Technology Research Program of Chongqing Municipal Education Commission [KJQN201900826, KJQN201800808]
- Innovation Group of New Technologies for Industrial Pollution Control of Chongqing Education Commission [CXQT19023]
- Key Disciplines of Chemical Engineering and Technology in Chongqing Colleges and Universities during the 13th Five Year Plan
Introducing metal atom-decorated carbon nanomaterials has been proven effective in inhibiting the dissolution of polysulfides/polyselenides and catalyzing their quick redox conversions, thereby enhancing the electrochemical performances of Li-S and Li-Se batteries. However, drawbacks and bottlenecks of this kind of material must also be taken into consideration when used in these batteries.
Lithium-sulfur (Li-S) and lithium-selenium (Li-Se) batteries are both facing the cathode issues of low Coulombic efficiency and unstable cycling stability due to the severe shuttle effect of lithium polysulfides or lithium polyselenides. Simultaneously inhibiting polysulfides/polyselenides dissolution in organic electrolytes and propelling them to conversion via introducing polar, catalytic materials has been proven as an effective strategy to enhance the durability of Li-S and Li-Se batteries. In this mini review, we systematically introduce various metal atom-decorated carbon nanomaterials to determine how to enhance the electrochemical performances of Li-S and Li-Se batteries by inhibiting the polysulfides/polyselenides shuttle phenomenon as well as catalyzing them toward quick redox conversions. We also briefly include the drawbacks and bottlenecks of this kind of material when used in Li-S and Li-Se batteries
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