典型文献
Adjusting the solvation structure with tris(trimethylsilyl)borate additive to improve the performance of LNCM half cells
文献摘要:
Tris(trimethylsilyl)borate(TMSB)has been intensively studied to improve the performances of lithium-ion batteries.However,it is still an interesting issue needed to be resolved for the research on the Li+sol-vation structure affected by TMSB additive.Herein,the electrochemical tests,quantum chemistry calcu-lations,potential-resolved in-situ electrochemical impedance spectroscopy measurements and surface analyses were used to explore the effects of Li+solvation structure with TMSB additive on the formation of the cathode electrolyte interface(CEI)film in LiNi0.8Co0.1Mn0.1O2/Li half cells.The results reveal that the TMSB additive is easy to complex with Li+ion,thus weaken the intermolecular force between Li+ions and ethylene carbonate solvent,which is benefit for the cycle performance.Besides,the changed Li+sol-vation structure results in a thin and dense CEI film containing compounds with Si-O and B-O bonds which is favorable to the transfer of Li+ions.As a result,the performances of the LNCM811/Li half cells are effectively improved.This research provides a new idea to construct a high-performance CEI film by adjusting the Li+solvation structures.
文献关键词:
中图分类号:
作者姓名:
Jie Wang;Hong Dong;Peng Wang;Xiao-Lan Fu;Ning-Shuang Zhang;Dong-Ni Zhao;Shi-You Li;Xiao-Ling Cui
作者机构:
School of Petrochemical Technology,Lanzhou University of Technology.Lanzhou 730050,Gansu,China;Gansu Key Laboratory of Low-Carbon Energy and Chemical Engineering,Lanzhou 730050,Gansu,China;Gansu Engineering Laboratory of Electrolyte Material for Lithium-ion Battery,Lanzhou 730050,Gansu,China
文献出处:
引用格式:
[1]Jie Wang;Hong Dong;Peng Wang;Xiao-Lan Fu;Ning-Shuang Zhang;Dong-Ni Zhao;Shi-You Li;Xiao-Ling Cui-.Adjusting the solvation structure with tris(trimethylsilyl)borate additive to improve the performance of LNCM half cells)[J].能源化学,2022(04):55-64
A类:
trimethylsilyl,LNCM,TMSB,Li+sol,Li+ion,LNCM811
B类:
Adjusting,tris,borate,additive,half,cells,Tris,has,been,intensively,studied,performances,lithium,batteries,However,still,interesting,issue,needed,resolved,research,affected,by,Herein,electrochemical,tests,quantum,chemistry,calcu,lations,potential,situ,impedance,spectroscopy,measurements,surface,analyses,were,used,explore,effects,Li+solvation,formation,cathode,electrolyte,interface,CEI,film,LiNi0,8Co0,1Mn0,1O2,results,reveal,that,easy,complex,thus,weaken,intermolecular,force,between,Li+ions,ethylene,carbonate,solvent,which,benefit,cycle,Besides,changed,thin,dense,containing,compounds,Si,bonds,favorable,transfer,are,effectively,improved,This,provides,new,idea,construct,high,adjusting,structures
AB值:
0.516298
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