METHOD FOR SERVICING METAL-HYDROGEN STORAGE BATTERY IN OFF-LINE POWER SUPPLY SYSTEM Russian patent published in 2005 - IPC

FIELD: electrical engineering; storage batteries for off-line power supply systems.

SUBSTANCE: proposed method for servicing metal-hydrogen storage batteries in off-line power supply system includes conduction of charge-discharge cycles, bypass of battery cells having lower capacity by means of discharging bypass diodes, and voltage measurements across each cell. Battery charge is commenced with open-circuit voltage measurement across each cell and if cell is found whose voltage is below specified value of their electrochemical pair, standard battery charge is made upon trickle charge that excludes explosion-hazard concentration of oxygen-hydrogen mixture; after that open-circuit voltage across cells is measured again, and if no cell whose voltage is below specified value of electrochemical pair is found, battery is placed on standard charge, otherwise trickle charge is repeated. In addition, open-circuit voltage of cells is repeatedly measured in 15 - 20 minutes after trickle charge of storage battery.

EFFECT: enhanced service life and operating reliability of storage battery.

2 cl, 1 dwg