SECONDARY CELL, TEMPERATURE DETECTOR OF SECONDARY CELL AND METHOD OF MANUFACTURING TEMPERATURE DETECTOR

摘要

A temperature-sensing apparatus 11 which is placed in contact with a plurality of batteries, e.g. secondary batteries, connected in series. The temperature sensing apparatus can be connected to a power source 12 and a current measuring device 13 to detect increases in the temperature of the battery. Each temperature-sensing section in contact with individual secondary batteries comprises a PTC element and electrode sheets in contact with and sandwiching the PTC element on the top and bottom, the electrode sheets being in a staggered and overlapping relationship. <IMAGE>