Electrochemical impregnation and cycle life of lightweight nickel electrodes for nickel-hydrogen cells

Author

Britton, Doris L.

Author_Institution

NASA, Lewis Res. Centre, Cleveland, OH, USA

fYear

1990

fDate

25-28 Jun 1990

Firstpage

235

Lastpage

238

Abstract

The nickel electrode has been identified as the heaviest component of the nickel-hydrogen (Ni-H₂) cell. As part of an overall goal to develop a high specific energy and specific volume Ni-H₂ cell for the low Earth orbit cycle regime, an improved lighter weight nickel electrode is being developed at the NASA Lewis Research Center. Lightweight plaques were used as conductive supports for the nickel hydroxide active material. These plaques are commercial products that are fabricated into nickel electrodes by electro-chemically impregnating them with active material. The electrodes were life-cycle tested in a low Earth orbit regime at 40 and 80% depths-of-discharge

Keywords

electrochemical electrodes; electrochemistry; hydrogen; nickel; secondary cells; NASA Lewis Research Center; Ni electrode; Ni(OH)₂; Ni-H₂ cell; conductive supports; depths-of-discharge; electrochemical impregnation; high specific energy; high specific volume; low Earth orbit cycle; Conducting materials; Contracts; Electrodes; Life testing; Low earth orbit satellites; NASA; Nickel; Optical fiber testing; Powders; Semiconductor optical amplifiers;

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.1990.145836

Filename

145836