| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealed storage battery with high safety by preventing the generation of high current caused by a short circuit by furnishing a PTC element in a sealing body without reducing the inner volume of an outer can. SOLUTION: The sealing body 10 is composed of a bottom plate 11 sealing an opening part of the outer can 18; a positive cap 12 acting as a positive terminal and forming a space part for housing a pressure valve on the inside; an insulating ring 13; an elastic valve 14 having a steel plate on the top surface; a spring 15; and a PTC element ring 16 arranged on a flange 12a of the positive cap 12. An insulating gasket 17 is fit to an outer circumferential part of the sealing body 10 to seal the opening part of the outer can 18. COPYRIGHT: (C)2004,JPO&NCIPI |
