中国化学快报(英文版)2024，Vol.35Issue(2) ：626-633.DOI:10.1016/j.cclet.2023.109144

Hybrid ionic/electronic interphase enabling uniform nucleation and fast diffusion kinetics for stable lithium metal anode

Lun Li Pengxia Ji Meng Huang Zixin Zhang Hong Wang Francis Verpoort Jinlong Yang Daping He
中国化学快报(英文版)2024，Vol.35Issue(2) ：626-633.DOI:10.1016/j.cclet.2023.109144
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  • 维普
  • 万方数据

Hybrid ionic/electronic interphase enabling uniform nucleation and fast diffusion kinetics for stable lithium metal anode

Lun Li 1Pengxia Ji 2Meng Huang 3Zixin Zhang 1Hong Wang 1Francis Verpoort 1Jinlong Yang 2Daping He4
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作者信息

  • 1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China
  • 2. Guangdong Research Center for Interfacial Engineering of Functional Materials,College of Materials Science and Engineering,Shenzhen University,Shenzhen 518060,China
  • 3. Sanya Science and Education Innovation Park of Wuhan University of Technology,Sanya 572000,China
  • 4. Hubei Engineering Research Center of RF-Microwave Technology and Application,Wuhan University of Technology,Wuhan 430070,China;State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China
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Abstract

Lithium(Li)dendrite issue,which is usually caused by inhomogeneous Li nucleation and fragile solid electrolyte interphase(SEI),impedes the further development of high-energy Li metal batteries.However,the integrated construction of a high-stable SEI layer that can regulate uniform nucleation and facilitate fast Li-ion diffusion kinetics for Li metal anode still falls short.Herein,we designed an artificial SEI with hybrid ionic/electronic interphase to regulate Li deposition by in-situ constructing metal Co clusters em-bedded in LiF matrix.The generated Co and LiF both enable fast Li-ion diffusion kinetics,meanwhile,the lithiophilic properties of Co clusters can serve as Li-ion nucleation sites,thereby contributing to uniform Li nucleation and non-dendritic growth.As a result,a dendrite-free Li deposition with a low overpoten-tial(16.1 mV)is achieved,which enables an extended lifespan over 750 h under strict conditions.The full cells with high-mass-loading LiFePO4(11.5 mg/cm2)as cathodes exhibit a remarkable rate capacity of 84.1 mAh/g at 5 C and an improved cycling performance with a capacity retention of 96.4％after undergoing 180 cycles.

Key words

Lithium metal anode/Hybrid ionic/electronic interphase/Solid electrolyte interphase/Fast diffusion kinetics/Dendritic growth of lithium

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基金项目

国家自然科学基金(22279097)

国家自然科学基金(52172217)

广东省自然科学基金(2021A1515010144)

深圳市科技计划(JCYJ20210324120400002)

出版年

2024
中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
参考文献量48
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