Method and apparatus for maintaining the pH in zinc-bromine battery systems
AssigneeExxon Research & Engineering Co.
InventorPatrick G. Grimes
Life of this patent
Estimating the term…
Abstract
A method and apparatus for maintaining the pH level in a zinc-bromine battery features reacting decomposition hydrogen with bromine in the presence of a catalyst. The catalyst encourages the formation of hydrogen and bromine ions. The decomposition hydrogen is therefore consumed, alloying the pH of the system to remain substantially at a given value.
Claims8
A method for recombining gaseous decomposition hydrogen with bromine in a zinc-bromine battery system, comprising the steps of:
- reacting gaseous decomposition hydrogen with bromine within said zinc-bromine system in the presence of a catalyst supported on an electronically conductive substrate and disposed at a gas/liquid interface of said system for causing formation of hydrogen and bromide ions, whereby said gaseous decomposition hydrogen is consumed and the pH of the system is substantially maintained at a given value.
A zinc-bromine battery system which consumes its decomposition gaseous hydrogen so that the pH of the system is substantially maintained at a given value, comprising a catalyst supported on an electronically conductive substrate and disposed at a gas/liquid interface of said system for causing formation of hydrogen and bromide ions in the presence of said decomposition gaseous hydrogen and bromine.
Dependencies are inferred from the claim text.