Advances in Ni-MH battery performance

Author

Fetcenko, M.A. ; Venkatesan, S. ; Ovshinsky, S.R.

Author_Institution

Ovonic Battery Co., Troy, MI, USA

fYear

1990

fDate

25-28 Jun 1990

Firstpage

305

Lastpage

311

Abstract

The V-Ti-Zr-Ni-Cr alloy system has been developed for Ni-MH batteries. The authors discuss alloy characteristics, implications for cell construction, and advances in cycle life performance for a variety of practical conditions. These alloys have high hydrogen storage capacity, low cost, excellent mechanical and chemical properties, and are easy to manufacture. General performance characteristics of these Ni-MH batteries allow drop-in replacement for Ni-Cd batteries. Cycle life has been established at over 400 cycles under aggressive 100% depth of discharge conditions and under several test conditions emphasizing overcharge and deep discharge. Advanced cell designs have achieved over 700 cycles under 100% DOD conditions, with projections that 1000 cycles may be possible

Keywords

nickel; secondary cells; Ni-VTiZrNiCrH secondary cells; alloy characteristics; battery performance; cell construction; cycle life performance; depth of discharge; drop-in replacement; Additives; Batteries; Chemicals; Corrosion; Costs; Electrodes; Hydrogen; Manufacturing; Powders; Raw materials;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Sources Symposium, 1990., Proceedings of the 34th International

Conference_Location

Cherry Hill, NJ

Print_ISBN

0-87942-604-7

Type

conf

DOI

10.1109/IPSS.1990.145853

Filename

145853