A Study of Metal Borides as High Capacity Anode Materials for Aqueous Primary Batteries

Authors

Ya-dong WANG, Department of Chemistry, Wuhan University, Wuhan 430072, China;
Xin-ping AI, Department of Chemistry, Wuhan University, Wuhan 430072, China;
Han-xi YANG, Department of Chemistry, Wuhan University, Wuhan 430072, China;

Abstract

The transition metal borides VB_2 and TiB_2 were tested as high capacity anode materials and their electrochemical behaviors were studied by cyclic voltammetry and discharge measurements. The experimental results indicated that transition metal borides VB_2 and TiB_2 electrodes can deliver exceptionally high discharge capacity of over 3100 mAH/g and 1 600 mAH/g respectively, corresponding to 11- and 6-electron oxidation reaction, although their parent elements V, Ti and boron, are almost completely electrochemically inert. The different electrochemical activitis were probably due to the electrochemical activation of boron, which clamp the potential to passivation for Ti and activity for V.

Keywords

Diborides, Anode materials, Multi-electron reaction, Alkaline batterie

DOI Link

https://doi.org/10.61558/2993-074X.1607

Publication Date

2005-02-28

Online Available Date

2005-02-28

Revised Date

2005-02-28

Received Date

2005-02-28

Recommended Citation

Ya-dong WANG, Xin-ping AI, Han-xi YANG. A Study of Metal Borides as High Capacity Anode Materials for Aqueous Primary Batteries[J]. Journal of Electrochemistry, 2005 , 11(1): 16-19.
DOI: 10.61558/2993-074X.1607
Available at: https://jelectrochem.xmu.edu.cn/journal/vol11/iss1/4

References

[1]　DellRM.Batteries: fiftyyearsofmaterialsdevelop ment[J].SolidStateIonics,2000,134:140~144.
[2]　YangCC,LinSJ.Improvementofhigh ratecapabilityofalkalineZnMnO2 battery[J].J.PowerSources,2002,112,174~183.
[3]　LatimerWM.TheOxidationStatesoftheElementsandTheirPotentialsinAqueousSolutionsm,2ndEdition[M].NewYork:PrenticeHall,1952.
[4]　BardAJ,ParsonsR,JordanJ.StandardPotentialsinAqueousSolutions[M].NewYork:MarcelDekker,1985.
[5]　MullerS,StriebelK,HaasO.La0.6Ca0.4CoO3:Astableandpowerfulcatalystforbifunctionalairelectrode[J].Electrochim.Acta,1994,39:1661.
[6]　FurmanNH.StandardMethodsofChemicalAnalysis,Vol.1,SixEdition[M].NewJersey:D.VanNos trandCompanyInc.,Princeton,1962.Chap.48andChap.51.
[7]　VajeestonP,RavindranP,RaviC, etal.Electronicstructure, bonding, andground statepropertiesofAlB2 typetransition metaldiborides[J].PhysicalRe viewB.,2001,63:045115.
[8]　PourbaixM,ZoubovND,MuylderJV.Atlasd’EquilibresElectrochimiques[M].Paris:Gauthier vil lars&C,1963.219,243.