典型文献
Three-dimensionalization via control of laser-structuring parameters for high energy and high power lithium-ion battery under various operating conditions
文献摘要：
Laser-structuring is an effective method to promote ion diffusion and improve the performance of lithium-ion battery (LIB) electrodes.In this work,the effects of laser structuring parameters (groove pitch and depth) on the fundamental characteristics of LIB electrode,such as interfacial area,internal resis-tances,material loss and electrochemical performance,are investigated.LiNi0.5Co0.2Mn0.3O2 cathodes were structured by a femtosecond laser by varying groove depth and pitch,which resulted in a material loss of 5％-14％ and an increase of 140％-260％ in the interfacial area between electrode surface and elec-trolyte.It is shown that the importance of groove depth and pitch on the electrochemical performance(specific capacity and areal discharge capacity) of laser-structured electrode varies with current rates.Groove pitch is more important at low current rate but groove depth is at high current rate.From the mapping of lithium concentration within the electrodes of varying groove depth and pitch by laser-induced breakdown spectroscopy,it is verified that the groove functions as a diffusion path for lithium ions.The ionic,electronic,and charge transfer resistances measured with symmetric and half cells showed that these internal resistances are differently affected by laser structuring parameters and the changes in porosity,ionic diffusion and electronic pathways.It is demonstrated that the laser structuring parameters for maximum electrode performance and minimum capacity loss should be determined in consideration of the main operating conditions of LIBs.
文献关键词：
中图分类号：
作者姓名：
Junsu Park;Hyeongi Song;Inseok Jang;Jaepil Lee;Jeongwook Um;Seong-guk Bae;Jihun Kim;Sungho Jeong;Hyeong-Jin Kim
作者机构：
Ground Technology Research Institute,Agency for Defense Development,P.O.Box 35,Yuseong-gu,Daejeon 34186,Republic of Korea;Graduate School of Energy Convergence,Gwangju Institute of Science and Technology,123 Cheomdangwagi-ro,Buk-gu,Gwangju 61005,Republic of Korea;School of Mechanical Engineering,Gwangju Institute of Science and Technology,123 Cheomdangwagi-ro,Buk-gu,Gwangju 61005,Republic of Korea
文献出处：
引用格式：
[1]Junsu Park;Hyeongi Song;Inseok Jang;Jaepil Lee;Jeongwook Um;Seong-guk Bae;Jihun Kim;Sungho Jeong;Hyeong-Jin Kim-.Three-dimensionalization via control of laser-structuring parameters for high energy and high power lithium-ion battery under various operating conditions)[J].能源化学,2022(01):93-102
A类：
dimensionalization
B类：
Three,via,control,laser,structuring,parameters,high,energy,power,lithium,battery,under,various,operating,conditions,Laser,effective,method,promote,diffusion,improve,performance,electrodes,In,this,work,effects,groove,pitch,depth,fundamental,characteristics,such,interfacial,internal,material,loss,electrochemical,investigated,LiNi0,5Co0,2Mn0,3O2,cathodes,were,structured,by,femtosecond,varying,which,resulted,increase,between,surface,trolyte,It,shown,that,importance,specific,capacity,areal,discharge,varies,current,rates,Groove,more,important,low,but,From,mapping,concentration,within,induced,breakdown,spectroscopy,verified,functions,ionic,electronic,transfer,resistances,measured,symmetric,half,cells,showed,these,differently,affected,changes,porosity,pathways,demonstrated,maximum,minimum,should,determined,consideration,main,LIBs
AB值：
0.454751
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
