典型文献
Manipulating Interfacial Stability Via Absorption-Competition Mechanism for Long-Lifespan Zn Anode
文献摘要:
The stability of Zn anode in various Zn-based energy storage devices is the key problem to be solved.Herein,aromatic aldehyde additives are selected to modulate the interface reactions between the Zn anode and electrolyte.Through comprehensively considering electro-chemical measurements,DFT calculations and FEA simula-tions,novel mechanisms of one kind of aromatic aldehyde,veratraldehyde in inhibiting Zn dendrite/by-products can be obtained.This additive prefers to absorb on the Zn sur-face than H2O molecules and Zn2+,while competes with hydrogen evolution reaction and Zn plating/stripping process via redox reactions,thus preventing the decomposition of active H2O near the interface and uncontrollable Zn dendrite growth via a synactic absorption-competition mechanism.As a result,Zn-Zn symmetric cells with the veratraldehyde additive realize an excellent cycling life of 3200 h under 1 mA cm-2/1 mAh cm-2 and over 800 h even under 5 mA cm-2/5 mAh cm-2.Moreover,Zn-Ti and Zn-MnO2 cells with the veratraldehyde additive both obtain elevated performance than that with pure ZnSO4 electrolyte.Finally,two more aromatic aldehyde additives are chosen to prove their universality in stabilizing Zn anodes.
文献关键词:
中图分类号:
作者姓名:
Meijia Qiu;Liang Ma;Peng Sun;Zilong Wang;Guofeng Cui;Wenjie Mai
作者机构:
Key Laboratory for Polymeric Composite & Functional Materials of Ministry of Education,School of Chemistry,Key Laboratory of Low-Carbon Chemistry & Energy Conservation of Guangdong Province,Sun Yat-Sen University,Guangzhou 510275,People's Republic of China;Siyuan Laboratory,Guangdong Provincial Engineering Technology Research Center of Vacuum Coating Technologies and New Energy Materials,Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials,Department of Physics,Jinan University,Guangdong 510632,People's Republic of China
文献出处:
引用格式:
[1]Meijia Qiu;Liang Ma;Peng Sun;Zilong Wang;Guofeng Cui;Wenjie Mai-.Manipulating Interfacial Stability Via Absorption-Competition Mechanism for Long-Lifespan Zn Anode)[J].纳微快报(英文),2022(02):161-173
A类:
Lifespan,veratraldehyde,synactic
B类:
Manipulating,Interfacial,Stability,Via,Absorption,Competition,Mechanism,Long,Anode,stability,various,energy,storage,devices,key,problem,solved,Herein,aromatic,additives,are,selected,modulate,interface,reactions,between,electrolyte,Through,comprehensively,considering,chemical,measurements,DFT,calculations,FEA,simula,novel,mechanisms,one,kind,inhibiting,dendrite,by,products,can,obtained,This,prefers,absorb,than,H2O,molecules,Zn2+,while,competes,hydrogen,evolution,plating,stripping,process,via,redox,thus,preventing,decomposition,active,near,uncontrollable,growth,absorption,competition,result,symmetric,cells,realize,excellent,cycling,life,under,mAh,Moreover,Ti,MnO2,both,elevated,performance,that,pure,ZnSO4,Finally,two,more,chosen,prove,their,universality,stabilizing,anodes
AB值:
0.582251
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