BATTERY POWER SUPPLY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a battery power supply device restraining damages accompanying disorders by setting a relay for breaking a charge/discharge circuit at abnormalities.

SOLUTION: A battery module is formed by connecting a plurality of unit cells by way of secondary cells electrically and mechanically in series, and a plurality of the battery modules are arranged in parallel in three dimensions to be held in a holder case 10, and at the same time, the plurality of the battery modules are electrically connected in series to make up a battery pack 8. The battery power supply device 1 utilized by an external device, to which a positive electrode and a negative electrode of the battery pack 8 are connected, is characterized by being provided with a relay switching the connection of the battery pack with the external device.

COPYRIGHT: (C)2004,JPO