A battery pack and a method of operating the battery pack are disclosed. The battery pack includes a plurality of battery cells and is configured to open a terminal of the battery if an open circuit is detected in a line connecting battery cells.

There is provided a fuel cell power generation system that exhibits superior efficiency of power generation and durability. [0002] The fuel cell power generation system includes: a fuel cell 4 including a fuel electrode 2, an oxidant electrode 3, and an el...

Disclosed is a cell balancing apparatus and method using a voltage variation pattern of a battery cell, which measures voltage of each cell, estimates open circuit voltage (OCV) or state of charge (SOC) of each cell using a voltage variation pattern of eac...

(57) Abstract: A method for testing a precursor of a secondary cell with high reliability and high efficiency to judge the precursor to be acceptable or defective. The current flowing when a test voltage is applied between a pair of electrodes is measured ...

A charging system for a rechargeable battery with a rapid charge capacity. This invention relates to the charging system for the rechargeable battery with a rapid charge capacity which can be recharged at a public place. The charging system comprises a cha...