JPS59146866U

JPS59146866U - sealed battery

Info

Publication number: JPS59146866U
Application number: JP4046783U
Authority: JP
Inventors: 正幸廣田; 梶田　耕三; 清水　明夫
Original assignee: 日立マクセル株式会社
Priority date: 1983-03-19
Filing date: 1983-03-19
Publication date: 1984-10-01

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の密閉形電池の一実施例を示す部分断面
図であり、第２図はその要部拡大図、第３図は上記電池
に使用した封止部材の記憶形状における状態を示す断面
図である。３・・・封口板、４・・・正極側の端子部、５・・・凹
リベット、５ａ・・・凹リベットの透孔、６・・・凸リ
ベット、６ａ・・・凸リベットの透孔、９・・・形状記
憶合金製の封止部材。Fig. 1 is a partial cross-sectional view showing one embodiment of the sealed battery of the present invention, Fig. 2 is an enlarged view of its main parts, and Fig. 3 shows the state of the sealing member used in the battery in its memorized shape. FIG. 3... Sealing plate, 4... Terminal part on positive electrode side, 5... Concave rivet, 5a... Through hole of concave rivet, 6... Convex rivet, 6a... Through hole of convex rivet , 9... Sealing member made of shape memory alloy.

Claims

[Claims for Utility Model Registration] 1. In a sealed battery in which at least one electrode terminal portion is attached to a sealing plate, a through hole is provided in the center of a pair of concave and convex rivets that are attached to the sealing plate as electrode terminal components. , the through hole of at least one of the rivets is sealed with a sealing member made of a shape memory alloy that is memorized in a shape that creates a gap between the through hole and the through hole when a certain temperature is reached, thereby providing an explosion-proof function. A sealed battery characterized by: 2. The sealed battery according to claim 1, wherein the sealing member made of a shape memory alloy is memorized in a shape having a smaller diameter than the diameter of the through hole to be sealed.