| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a battery module capable of preventing or reducing deterioration or breakage of secondary batteries due to overcharge.SOLUTION: The battery module includes: plural secondary batteries which are electrically connected to each other in series; a fuse which is electrically connected thereto in series; voltage detection means that detects a voltage causing an overcharge of the plural secondary batteries; and opening/closing means which is configured to be connected to flow the current from the plural secondary batteries when getting in a closed state, and when the voltage detection means detects an overvoltage, to get into a closed state. When an overcharge occurs on the secondary batteries, the current from the secondary batteries is controlled to flow to the fuse via the opening/closing means to brow the fuse.</p> |
