Porous surfur-doped hard carbon for excellent potassium storage

查看全文 作　　者：Xuan [1]Xie;Shihan [1]Qi;Daxiong [1]Wu;Huaping [1]Wang;Fang [1]Li;Xiaoxin [2]Peng;Jinfeng [2]Cai;Jiaojiao [3]Liang;Jianmin [1,4,5]Ma

机构地区：[1]School of Physics and Electronics,Hunan University,Changsha 410082,China;[2]Yiyang Wanjingyuan Electronics Co.,Ltd.,Yiyang 413000,China;[3]College of Traffic Engineering,Hunan University of Technology,Zhuzhou 412008,China;[4]Key Laboratory of Materials Processing and Mold(Zhengzhou University),Ministry of Education,Zhengzhou University,Zhengzhou 450002,China;[5]State Key Lab of Chemical Engineering,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China

出　　处：《Chinese Chemical Letters》索引2020年第31卷第1期,共4页

基　　金：supported by the National Natural Science Foundation of China (Nos.21905086,51971090);the Key Research and Development Program of Hunan Province of China (No. 2018GK2031);the Natural Science Foundation of Hunan Province (No.2017JJ1008) 摘　　要：Hard carbon is promising anode for potassium-ion batteries(PIBs),however,the poor rate capability hinders its development as potential anode.To address this question,we design a sulfur-doped porous hard carbon(S-HC)for PIBs through the combination of structural design and composition adjustment.The as-designed S-HC exhibits a long cycling life with^191 mAh/g after 300 cycles at 1 A/g,and an excellent rate capability with^100 mAh/g at 5 A/g,which was attributed to its structural characteristics and compositions.The S-HC demonstrates to be promising anode in the future. 关键词：Porous carbon Sulfur-doping Hard carbon ANODE Potassium-ion battery

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Porous surfur-doped hard carbon for excellent potassium storage

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