Device for detecting abnormality in a secondary battery

摘要

There are provided an electrically-conductive connecting plate that connects electrode terminals of a plurality of battery cells; a fastening member that fastens the connecting plate and each of the electrode terminals together; temperature-detecting means that is placed near a fastened portion between the connecting plate and the corresponding electrode terminal which are fastened together with the fastening member, and detects temperature around the fastened portion; and abnormality-judging means that judges abnormality in the battery cells or the fastening member on the basis of temperature detected by the temperature-detecting means.