典型文献
New Insight on Graphite Anode Degradation Induced by Li-Plating
文献摘要：
Graphite is the dominant anode material for lithium-ion batteries;however,it still suffers from Li-plating when charging fast or at low temperature,and Li-plating is associated with performance fading and safety concerns.Herein,we clarify the mechanism of lithium evolution from graphite particles by over-lithiation cycle test,in-situ XRD,and titration gas chromatography.We observe that the graphite intercalation compounds(GlCs,LiC12 and LiC6 e.g.)gradually become inactive and wrapped by dead lithium or side reaction sediments,while the rate of this degradation will be accelerated as the overpotential of Li-plating is decreased after initial Li metal nucleation.This understanding is contradictory to the popular one that the degradation of graphite anode after Li plating is mainly caused by the inferior SEI and dead Li induced hindering of Li-ion intercalation.The isolation of lithiated graphite particles leading to the fast vanishing of Li insertion/deintercalation process in graphite anodes.We further study the insertion/deintercalation vanishing process at low temperature and high rates,respectively.This work provides a insight on graphite anode degradation induced by Li-plating,and the new understanding can be used to guide the design of advanced materials and electrodes to avoid Li-plating and achieve extreme fast while safe charging.
文献关键词：
中图分类号：
作者姓名：
Yongchuang Xiong;Yan Liu;Long Chen;Songtong Zhang;Xiayu Zhu;Tengteng Shen;Dongsheng Ren;Xiangming He;Jingyi Qiu;Li Wang;Qiao Hu;Hao Zhang
作者机构：
Research Institute of Chemical Defense,Beijing 100191,China;Beijing Advanced Innovation Center for Materials Genome Engineering,Institute of Advanced Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China;State Key Laboratory of Automotive Safety and Energy,Tsinghua University,Beijing 100084,China;Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China
文献出处：
引用格式：
[1]Yongchuang Xiong;Yan Liu;Long Chen;Songtong Zhang;Xiayu Zhu;Tengteng Shen;Dongsheng Ren;Xiangming He;Jingyi Qiu;Li Wang;Qiao Hu;Hao Zhang-.New Insight on Graphite Anode Degradation Induced by Li-Plating)[J].能源与环境材料（英文）,2022(03):872-876
A类：
GlCs,LiC12,LiC6
B类：
New,Insight,Graphite,Anode,Degradation,Induced,by,Plating,dominant,lithium,batteries,however,still,suffers,from,plating,when,charging,fast,low,temperature,associated,performance,fading,safety,concerns,Herein,clarify,mechanism,evolution,graphite,particles,lithiation,cycle,test,situ,titration,gas,chromatography,We,observe,that,compounds,gradually,become,inactive,wrapped,dead,side,reaction,sediments,while,this,degradation,will,accelerated,overpotential,decreased,after,initial,metal,nucleation,This,understanding,contradictory,popular,one,mainly,caused,inferior,SEI,induced,hindering,isolation,lithiated,leading,vanishing,insertion,deintercalation,process,anodes,further,study,high,rates,respectively,work,provides,insight,new,can,guide,design,advanced,materials,electrodes,avoid,achieve,extreme
AB值：
0.516232
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
