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典型文献
Rational design of integrative CNTs@Ge nanotube films as binder-free electrodes for potassium storage
文献摘要:
Alloying materials hold great potential as the anodes for potassium-ion batteries(KIBs).However,the large volume changes during K+alloying/dealloying reactions can lead to structural damage of the electrodes,resulting in fast capacity loss and shortened cycle life.Herein,we report the design of integrative carbon nan-otubes@germanium(CNTs@Ge)films on copper foil by combined chemical and physical vapor deposition.Elec-trochemical tests show that the integrative CNTs@Ge films,working as binder-free electrodes,demonstrate higher specific capacity and rate performance in compar-ison with pristine Ge and CNTs electrodes.In addition,the CNTs@Ge films also deliver a long cycling stability with an areal specific capacity of 0.0417 mAh·cm-2 after 450 cycles at 1000 μA·cm-2.The enhanced potassium storage properties can be attributed to the interweaved CNTs with abundant space that can effectively buffer the volume expansion of Ge during alloying/dealloying process.
文献关键词:
作者姓名:
Jia-Yue Xie;Kai Wang;Ning-Ning Li;Guang-Lu Lei;Hou-Shan Mei;Xiang-Hong Liu;Jun Zhang
作者机构:
College of Physics,Center for Marine Observation and Communications,Qingdao University,Qingdao 266071,China;Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),Nankai University,Tianjin 300071,China
引用格式:
[1]Jia-Yue Xie;Kai Wang;Ning-Ning Li;Guang-Lu Lei;Hou-Shan Mei;Xiang-Hong Liu;Jun Zhang-.Rational design of integrative CNTs@Ge nanotube films as binder-free electrodes for potassium storage)[J].稀有金属(英文版),2022(09):3107-3116
A类:
K+alloying,interweaved
B类:
Rational,design,integrative,CNTs,Ge,nanotube,films,binder,free,electrodes,potassium,storage,Alloying,materials,hold,great,potential,anodes,batteries,KIBs,However,large,volume,changes,during,dealloying,reactions,can,lead,structural,damage,resulting,fast,capacity,loss,shortened,life,Herein,report,carbon,otubes,germanium,copper,foil,by,combined,physical,vapor,deposition,Elec,trochemical,tests,show,that,working,demonstrate,higher,specific,performance,compar,ison,pristine,In,addition,also,deliver,long,cycling,stability,areal,mAh,after,cycles,enhanced,properties,attributed,abundant,space,effectively,buffer,expansion,process
AB值:
0.575182
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