典型文献
Adjusting the local solvation structures and hydrogen bonding networks for stable aqueous batteries with reduced cost
文献摘要：
Exploring low-cost and effective approaches to extend the potentials of aqueous electrolytes is highly desired.Herein,it is found that the activity of H2O in aqueous electrolytes could be intensively manipu-lated by introducing small urea and long-chain polyethylene glycol(PEG)molecules into LiTFSI-H2O elec-trolyte systems without super salt concentration.The urea and PEG molecules could exclude partial coordinated H2O out of the inner solvation shell of Li+and reconstruct hydrogen-bonding network between H2O and PEG molecules outside the solvation sheaths with restricted H2O activity and extended electrochemical window.The bonding competitions in aqueous electrolytes and their correlation to the electrochemical performance of full cells are studied.When the occurrence probability of H2O around Li+is lower than 40％,stable cycling of 3.1 V LiMn2O4-Li4Ti5O12 full cell is achieved,showing 73％capacity retention after 200 cycles at 1 C rate in optimal electrolytes.This work provides new avenues to under-stand the role of H2O and explore low-cost and effective approaches for the development of next-generation aqueous lithium-ion batteries.
文献关键词：
中图分类号：
作者姓名：
Canfu Zhang;Binbin Chen;Haoran Cai;Renzhi Huang;Yingchun Liu;Huilin Pan
作者机构：
Department of Chemistry,Zhejiang University,Hangzhou 310027,Zhejiang,China
文献出处：
引用格式：
[1]Canfu Zhang;Binbin Chen;Haoran Cai;Renzhi Huang;Yingchun Liu;Huilin Pan-.Adjusting the local solvation structures and hydrogen bonding networks for stable aqueous batteries with reduced cost)[J].能源化学,2022(05):411-419
A类：
Li+is
B类：
Adjusting,local,solvation,structures,hydrogen,bonding,networks,stable,aqueous,batteries,reduced,cost,Exploring,effective,approaches,potentials,electrolytes,highly,desired,Herein,found,that,activity,H2O,could,intensively,manipu,lated,by,introducing,small,urea,long,chain,polyethylene,glycol,PEG,molecules,into,LiTFSI,systems,without,super,salt,concentration,exclude,partial,coordinated,inner,shell,Li+and,reconstruct,between,outside,sheaths,restricted,extended,electrochemical,window,competitions,their,correlation,performance,full,cells,are,studied,When,occurrence,probability,around,lower,than,cycling,LiMn2O4,Li4Ti5O12,achieved,showing,capacity,retention,after,cycles,rate,optimal,This,provides,new,avenues,under,stand,role,explore,development,next,generation,lithium
AB值：
0.595385
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