The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 1998
Filed:
Sep. 13, 1996
Osamu Takahashi, Kanagawa, JP;
Shigeru Andou, Kanagawa, JP;
Wataru Nakamura, Kanagawa, JP;
Hisashi Suzuki, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A sealed nonaqueous secondary battery comprising a sealed-end battery case containing an electrodes assembly composed of a cathode, and an anode both capable of intercalating and deintercalating a light metal, a separator therebetween and a nonaqueous electrolytic solution, the opening of said battery case being sealed with an insulating gasket which is provided at the inner periphery of said opening and a sealing part which is held by the gasket and serves as a cathode or anode terminal, wherein the sealing part comprises an explosion-proof valve which is capable of being deformed to the direction opposite to the electrodes assembly with an increase in internal pressure, a vented terminal cap which is provided above the explosion-proof valve in the side opposite to the electrodes assembly, and a current breaker which is provided between the explosion-proof valve and the terminal cap; the current breaker having a piled structure composed of a first electric conductor having a penetrated hole which is provided at a side of the explosion-proof valve, an intermediate insulator having a penetrated hole at the central portion thereof, and a second electric conductor having a penetrated hole which is provided at a side of the terminal cap; the first electric conductor and the second electric conductor being electrically connected at the center thereof; and the first electric conductor having a thin part at the periphery of its joint with the second electric conductor.