Self-Discharge Model of a Nickel-Hydrogen Cell | Zendy

Bin Wu | Zendy; R. E. White | Zendy

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Self-Discharge Model of a Nickel-Hydrogen Cell

Author(s) -

Bin Wu,

R. E. White

Publication year - 2000

Publication title -

journal of the electrochemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.258

H-Index - 271

eISSN - 1945-7111

pISSN - 0013-4651

DOI - 10.1149/1.1393290

Subject(s) - nickel , hydrogen , electrochemistry , electrode , inorganic chemistry , oxygen , electrochemical cell , chemistry , self discharge , redox , battery (electricity) , materials science , metallurgy , thermodynamics , organic chemistry , electrolyte , power (physics) , physics

A model of the self-discharge process of a nickel-hydrogen cell is presented. The model includes three electrochemical reactions on the nickel electrode (reduction of nickel oxyhydroxide, oxidation of hydrogen, and oxidation of hydroxyl ion to form oxygen) and two electrochemical reactions on the hydrogen electrode (reduction of oxygen and oxidation of hydrogen). The self-discharge pressure profile of the nickel-hydrogen battery that consists of two characteristic regions is explained reasonably well with the model. The model can be used to predict the capacity retention of a nickel-hydrogen cell during open-circuit conditions at different temperatures.

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