Zinc-chlorine battery plant system and method

Details Zinc-chlorine battery plant system and method Zinc-chlorine battery plant system and method

1980-05-27

1981-09-01

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Regenerating, salvage or repair feature other than only...

429 61, 429 90, 429122, 429158, H01M 220

Patent

active

042872677

ABSTRACT:
A zinc-chlorine battery plant system and method of redirecting the electrical current around a failed battery module. The battery plant includes a power conditioning unit, a plurality of battery modules connected electrically in series to form battery strings, a plurality of battery strings electrically connected in parallel to the power conditioning unit, and a bypass switch for each battery module in the battery plant. The bypass switch includes a normally open main contact across the power terminals of the battery module, and a set of normally closed auxiliary contacts for controlling the supply of reactants electrochemically transformed in the cells of the battery module. Upon the determination of a failure condition, the bypass switch for the failed battery module is energized to close the main contact and open the auxiliary contacts. Within a short time, the electrical current through the battery module will substantially decrease due to the cutoff of the supply of reactants, and the electrical current flow through the battery string will be redirected through the main contact of the bypass switch.

REFERENCES:
patent: 3713888 (1973-01-01), Symons
Symons et al., "100 MWh Zinc-Chlorine Peak-Shaving Battery Plants"; The 13th Intersociety Energy Conversion Engineering Conference.
Whittlesey et al., "The Zinc-Chlorine Battery in the Best Facility, 1981"; Proceedings of the 14th Intersociety Energy Conversion Engineering Conference.

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