稀有金属(英文版)2024，Vol.43Issue(6) ：2527-2535.DOI:10.1007/s12598-023-02609-1

Dynamically lithium-compensated polymer artificial SEI to assist highly stable lithium-rich manganese-based anode-free lithium metal batteries

Ming-Ji Peng Jin-Qiu Zhou Ting-Ting Han Yang Zhou Jie Liu Na Xu Zhen-Kang Wang Wen-Bin Lin Cheng-Lin Yan
稀有金属(英文版)2024，Vol.43Issue(6) ：2527-2535.DOI:10.1007/s12598-023-02609-1
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Dynamically lithium-compensated polymer artificial SEI to assist highly stable lithium-rich manganese-based anode-free lithium metal batteries

Ming-Ji Peng 1Jin-Qiu Zhou 2Ting-Ting Han 3Yang Zhou 4Jie Liu 2Na Xu 5Zhen-Kang Wang 1Wen-Bin Lin 6Cheng-Lin Yan1
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作者信息

  • 1. Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry,College of Energy,Soochow University,Suzhou 215006,China;Light Industry Institute of Electrochemical Power Sources,Suzhou 215006,China
  • 2. School of Chemistry and Chemical Engineering,Nantong University,Nantong 226019,China
  • 3. State Key Laboratory of Space Power-Sources Technology,Shanghai Institute of Space Power-Sources,Shanghai 200245,China
  • 4. Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry,College of Energy,Soochow University,Suzhou 215006,China
  • 5. Centre Énergie,Matériaux et Télécommunications,Institut National de la Recherche Scientifique,Varennes,QC J3X 1S2,Canada
  • 6. Zhangjiagang Industrial Technologies,Soochow University,Suzhou 215006,China
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Abstract

Owing to the unique structure,anode-free lithium metal batteries(AFLMBs)have higher energy density and lower production cost than traditional lithium metal batteries(LMBs)or lithium-ion batteries(LIBs).However,AFLMBs suffer from an inherently finite Li reservoir and exhibit poor cycle stability,low Coulombic efficiency(CE)and severe dendrite growth.In this work,polydiallyl lithium disulfide(PDS-Li)was successfully synthesized and coated on Cu current collector by elec-trochemical polymerization.The PDS-Li acts as an addi-tional lithium resource to compensate for the irreversible loss of lithium during cycling.In addition,the special structure and lithiophilicity of PDS-Li contribute to lower nucleation overpotential and uniform lithium deposition.When coupled with Li-rich manganese-based(LRM)cathode of Lij.2Mn0.54Ni0.13Co0.13O2,the anode-free full cell exhibits significantly improved cycle stability over 100 cycles and capacity retention of 63.3％and 57％after 80 and 100 cycles,respectively.We believe that PDS-Li can be used to ensure stable cycling performance and high-energy-density in AFLMBs.

Key words

Anode-free/Artificial solid electrolyte interphase(SEI)/Lithium metal batteries/Lithium-rich cathode/Finite element simulation

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基金项目

国家自然科学基金(52071226)

国家自然科学基金(51872193)

国家自然科学基金(U21A20332)

江苏省自然科学基金(BK20181168)

江苏省自然科学基金(BK20201171)

江苏省自然科学基金(BK20220061)

Key Research and Development Project funded by Department of Science and Technology of Jiangsu Province(BE2020003-3)

Natural Science Foundation of Jiangsu Higher Education Institutions of China(19KJA210004)

Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)()

出版年

2024
稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDCSCDEI
影响因子：0.801
ISSN：1001-0521
参考文献量2
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