典型文献
Free-standing ultrathick LiMn2O4@single-wall carbon nanotubes electrode with high areal capacity
文献摘要：
The ever-increasing demands for advanced lithium-ion batteries with high energy density have greatly stimulated the pursuit of thick electrodes with high active material loading.However,it is not feasible to prepare thick electrodes with traditional coating methods due to mechanical instability.Herein,using single-wall carbon nanotubes(SWCNT)as conductive carbon and binder,free-standing LiMn2O4 thick electrodes(F-LMO)with ultrahigh-mass loading up to～190 mg cm-2 were prepared by vacuum filtration combined with freeze-drying.The thick electrodes with～30 mg cm-2 mass loading achieved a high specific capacity of 106.7 mAh g-1 with a good capacity retention of 94％over 50 cycles at 0.5 C,which was superior to the traditional coating electrodes(～20 mg cm-2)of 99.3 mAh g-1 with 95％because of the enhanced electronic conductivity originated from SWCNT.In addition,the high active material ratio of 97.5 wt％,near-theoretical reversible capacity,and high mass loading gave ultrathick F-LMO electrodes(600 μm)of～190 mg cm-2 with a remarkable areal capacity of 20 mAh cm-2.Moreover,the concentra-tion polarization that occurred in the thick F-LMO electrodes under high current density was discussed via electrochemical stimulation.
文献关键词：
中图分类号：
作者姓名：
Yuntao Guo;Xinhai Li;Zhixing Wang;Jiexi Wang;Huajun Guo;Guochun Yan
作者机构：
School of Metallurgy and Environment,Central South University,Changsha 410083,Hunan,China;Engineering Research Center of the Ministry of Education for Advanced Battery Materials,Central South University,Changsha 410083,Hunan,China;Hunan Provincial Key Laboratory of Nonferrous Value-added Metallurgy,Central South University,Changsha 410083,Hunan,China
文献出处：
引用格式：
[1]Yuntao Guo;Xinhai Li;Zhixing Wang;Jiexi Wang;Huajun Guo;Guochun Yan-.Free-standing ultrathick LiMn2O4@single-wall carbon nanotubes electrode with high areal capacity)[J].能源化学,2022(10):452-459
A类：
ultrathick
B类：
Free,standing,LiMn2O4,single,wall,carbon,nanotubes,areal,capacity,increasing,demands,advanced,lithium,batteries,energy,density,have,greatly,stimulated,pursuit,electrodes,active,material,loading,However,feasible,traditional,coating,methods,due,mechanical,instability,Herein,using,SWCNT,conductive,binder,LMO,ultrahigh,mass,were,prepared,by,vacuum,filtration,combined,freeze,drying,achieved,specific,mAh,good,retention,cycles,which,was,superior,because,enhanced,electronic,conductivity,originated,from,In,addition,wt,near,theoretical,reversible,gave,remarkable,Moreover,concentra,polarization,that,occurred,under,current,discussed,via,electrochemical,stimulation
AB值：
0.505256
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