H - Electricity – 01 – M
Patent
H - Electricity
01
M
319/24, 319/44
H01M 10/48 (2006.01) H01M 8/04 (2006.01) H01M 10/36 (2006.01) H01M 10/42 (2006.01) H01M 12/08 (2006.01) H02J 7/00 (2006.01) H01M 6/50 (2006.01) H01M 8/24 (2006.01)
Patent
CA 1156717
ABSTRACT OF THE DISCLOSURE 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 con- tact 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 cut- off 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.
375848
Mashikian Matthew S.
Whittlesey Curtis C.
Energy Development Associates Inc.
Macrae & Co.
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