Even though transition metal carbonates(TMCs,TM=Fe,Mn,Co,Ni etc.),show high theoretical capac-ities,rich reserves and environmental friendliness as anodes for lithium-ion batteries(LIBs),they suffer from sluggish electronic/ionic conductivities and huge volume variation,which severely deteriorate the rate capacities and cycling performances.Understanding the intrinsic reaction mechanism and further developing ideal TMC-based anode with high specific capacity,excellent rate capabilities,and long-term cycling stability are critical for the practical application of TMCs.In this review,we firstly focus on the fundamental electrochemical energy-storage mechanisms of TMCs,in terms of conversion-reaction process,pseudocapacitance-type charge storage,valence change for charge storage and catalytic conversion mechanisms.Based on the reaction mechanisms,various modification strategies to improve the electrochemical performance of TMCs are summarized,covering:(i)micro-nano structural engineer-ing,in which the influence factors on the morphology are discussed,and multiple architectures are listed;(ii)elemental doping,in which the intrinsic mechanisms of metal/nonmetal elements doping on the elec-trochemical performance are deeply explored;(iii)multifunctional compositing strategies,in which the specific affections on structure,electronic conductivity and chemo-mechanical stability are summarized.Finally,the key challenges and opportunities to develop high-performance TMCs are discussed and some solutions are also proposed.This timely review sheds light on the path towards achieving cost-effective and safe LIBs with high energy density and long cycling life using TMCs-based anode materials.

Rui Zhang;Qingfeng Fu;Peng Gao;Wang Zhou;Hui Liu;Chaohe Xu;Jian-Fang Wu;Chuanjun Tu;Jilei Liu

College of Materials Science and Engineering,Hunan Joint International Laboratory of Advanced Materials and Technology for Clean Energy,Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology,Hunan University,Changsha 410082,Hunan,China;College of Chemistry and Material Science,Hunan Agricultural University,Changsha 410128,Hunan,China;College of Aerospace Engineering,Chongqing University,Chongqing 400044,China

能源化学

[1]Rui Zhang;Qingfeng Fu;Peng Gao;Wang Zhou;Hui Liu;Chaohe Xu;Jian-Fang Wu;Chuanjun Tu;Jilei Liu-.Transition metal carbonate anodes for Li-ion battery:fundamentals,synthesis and modification)[J].能源化学,2022(07):95-120

affections

Transition,anodes,Li,battery,fundamentals,synthesis,modification,Even,though,transition,carbonates,TMCs,Mn,Co,etc,show,high,theoretical,rich,reserves,environmental,friendliness,lithium,batteries,LIBs,they,suffer,from,sluggish,electronic,ionic,conductivities,huge,volume,variation,which,severely,deteriorate,capacities,cycling,performances,Understanding,intrinsic,reaction,further,developing,ideal,specific,capacity,excellent,capabilities,long,stability,are,critical,practical,application,In,this,review,we,firstly,focus,electrochemical,energy,storage,mechanisms,terms,conversion,process,pseudocapacitance,type,charge,valence,change,catalytic,Based,various,strategies,improve,summarized,covering,micro,nano,structural,engineer,influence,factors,morphology,discussed,multiple,architectures,listed,elemental,doping,nonmetal,elements,deeply,explored,iii,multifunctional,compositing,structure,conductivity,chemo,mechanical,Finally,key,challenges,opportunities,some,solutions,also,proposed,This,timely,sheds,light,path,towards,achieving,cost,effective,safe,density,life,using,materials

0.573084