典型文献
Building ultra-stable K-Te battery by molecular regulation
文献摘要：
Tellurium(Te)is an ideal electrode for potassium ion batteries(PIBs)owing to its excellent electronic conductivity and high volumetric capacity.However,the Te electrode is prone to capacity fading as the shuttle effect.To address this challenge,we propose molecular regulated Se-Te solid solutions on N-doped porous carbon as the PIBs electrode.After optimizing the Se content in Se-Te solid solutions,the resultant SeTe6.8 on N-doped porous carbon(SeTe6.8@C)delivered a capacity of over 400 mAh g-1 with a flat plateau of 1.0 V at 500 mA g-1.It also achieved a superiorly long cycle life,running for more than 1600 cycles(over 7 months with 0.015％degeneration per cycle)at 100 mA g-1 and excellent rate performance(179.9 mAh g-1 at 10000 mA g-1).This remarkable electrochemical energy storage of the Te electorde likely arises from suppression of the shuttle effect after doping the Te with strongly electroneg-ative Se atoms(forming K5Te3 which is not easily soluble in electrolyte).This study presents a fresh approach for designing and developing ultra-stable Te-based electrodes for PIBs and beyond.
文献关键词：
中图分类号：
作者姓名：
Jiawan Zhou;Dongyang Shen;Xinzhi Yu;Bingan Lu
作者机构：
School of Physics and Electronics,Hunan University,Changsha 410082,Hunan,China;College of Science,Hunan University of Technology and Business,Changsha 410205,Hunan,China
文献出处：
引用格式：
[1]Jiawan Zhou;Dongyang Shen;Xinzhi Yu;Bingan Lu-.Building ultra-stable K-Te battery by molecular regulation)[J].能源化学,2022(06):100-107
A类：
Tellurium,SeTe6,superiorly,electorde,electroneg,K5Te3
B类：
Building,ultra,stable,battery,by,molecular,regulation,ideal,potassium,batteries,PIBs,owing,its,excellent,electronic,conductivity,high,volumetric,capacity,However,prone,fading,shuttle,effect,To,address,this,challenge,propose,regulated,solid,solutions,doped,porous,carbon,After,optimizing,content,resultant,delivered,over,mAh,flat,plateau,It,also,achieved,long,life,running,more,than,cycles,months,degeneration,rate,performance,This,remarkable,electrochemical,energy,storage,likely,arises,from,suppression,after,doping,strongly,ative,atoms,forming,which,not,easily,soluble,electrolyte,study,presents,fresh,approach,designing,developing,electrodes,beyond
AB值：
0.528088
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