典型文献
Bromine-Graphite Intercalation Enabled Two-Electron Transfer for a Bromine-Based Flow Battery
文献摘要：
Br2/Br is a promising redox couple in flow batteries because of its high potential,solubility,and low cost.However,the reaction between Br-and Br2 only involves a single-electron transfer process,which limits its energy density.Herein,a novel two-electron transfer reaction based on Br-/Br+was studied and realized through Br+intercalation into graphite to form a bromine-graphite intercalation compound(Br-GIC).Compared with the pristine Br-/Br2 redox pair,the redox potential of Br intercalation/deintercalation in graphite is 0.5 V higher,which has the potential to substantially increase the energy density.Different from Br2/Br-in the electrolyte,the diffusion rate of Br intercalation in graphite decreases with increasing charge state because of the decreasing intercalation sites in graphite,and the integrity of the graphite structure is important for the intercalation reaction.As a result,the battery can continuously run for more than 300 cycles with a Coulombic effi-ciency exceeding 97％and an energy efficiency of approximately 80％at 30 mA/cm2,and the energy density increases by 65％compared with Br-/Br2.Combined with double-electron transfer and a highly reversible electrochemical process,the Br intercalation redox couple demonstrates very promising prospects for stationary energy storage.
文献关键词：
中图分类号：
作者姓名：
Yue Xu;Congxin Xie;Xianfeng Li
作者机构：
Division of Energy Storage,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023,China;University of Chinese Academy of Sciences,Beijing 100049,China
文献出处：
引用格式：
[1]Yue Xu;Congxin Xie;Xianfeng Li-.Bromine-Graphite Intercalation Enabled Two-Electron Transfer for a Bromine-Based Flow Battery)[J].天津大学学报（英文版）,2022(03):186-192
A类：
Br+was,Br+intercalation
B类：
Bromine,Graphite,Intercalation,Enabled,Two,Electron,Transfer,Based,Flow,Battery,Br2,promising,redox,couple,flow,batteries,because,potential,solubility,cost,However,reaction,between,only,involves,single,electron,transfer,process,which,limits,energy,density,Herein,novel,two,studied,realized,through,into,graphite,form,bromine,compound,GIC,Compared,pristine,pair,deintercalation,higher,has,substantially,Different,from,electrolyte,diffusion,decreases,increasing,charge,state,decreasing,sites,integrity,structure,important,result,battery,can,continuously,run,more,than,cycles,Coulombic,exceeding,efficiency,approximately,mA,increases,by,compared,Combined,double,highly,reversible,electrochemical,demonstrates,very,prospects,stationary,storage
AB值：
0.511815
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