Titanium diborides were investigated as an anodic material for neutral aqueous batteries.It is revealed that this material shows superiorly high electrochemical activities in the neutral electrolytes.The discharge capacities observed for TiB2 reached 1300 mAh/g at the constant current density of 50 mA/g,exceeding all the metal electrodes reported so far.The electrooxidation of this compound was found to proceed via the electrochemical dissolution of boron to form borofluoride,while titanium remained unchanged at the electrode.These results suggest a possible use of the boride compounds as a new material for constructing neutral aqueous batteries with high electrochemical capacity and rate capability.


metal borides, anodic materials, aqueous batteries, neutral electrolytes, electrooxidation

Publication Date


Online Available Date


Revised Date


Received Date



[1]Yang H X,Wang Y D,Ai X P,et al.Metal borides:competitive high capacity anode materials for aqueousprimary batteries[J].Electrochem Solid State lett,2004,7(7):A212-A215.
[2]Wang Y D,Ai X P,Cao Y L,et al.Exceptional elec-trochemical activities of amorphous Fe-B and Co-B alloypowders as high capacity anode materials[J].Electro-chem Commun,2004,6:780-784.
[3]Cha C S,Li C M,Yang HX,et al.Powder microelec-trodes[J].J Eectroanal Chem,1994,368:47-54.
[4]Muller S,Striebel K,Haas O.La0.6Ca0.4CoO3:A sta-ble and powerful catalyst for bifunctional air electrodes[J].Electrochim Acta,1994,39:1661-1668.
[5]Pourbaix M.Atlas d’Equilibres electrochimiques[M].Paris:Gauthier-Villars,1963.219,243.
[6]Joint Committee on Powder Diffraction Standards,03-0333.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.