JPH0424258U

JPH0424258U -

Info

Publication number: JPH0424258U
Application number: JP1990064556U
Authority: JP
Priority date: 1990-06-19
Filing date: 1990-06-19
Publication date: 1992-02-27
Anticipated expiration: 2005-06-19
Also published as: JP2519835Y2

Description

[Brief explanation of the drawing]

第１図は、本考案実施の１例のリチウム二次電
池の要部の裁断側面図、第２図は、その電池蓋の
分解斜面図、第３図は、他の実施例のリチウム二
次電池の要部の裁断側面図、第４図は、その電池
蓋の分解斜面図、第５図は、電池のサイクル寿命
の比較試験の結果を示すグラフ、第６図は、従来
のリチウム二次電池の一部の裁断側面図を示す。１……金属製容器、２……極板群、３……正極
リード線、６……電解液、７……電池蓋、８……
金属製蓋板、８ａ……蓋板下面、９……極柱、９
ａ……極柱下面、９ｂ……極柱下端部、１１……
環状絶縁シール部、１１ａ……シール部下面、１
２……中心孔、嵌合孔、１３……接続性絶縁シー
ト、１３ａ……基材、１３ｂ……接着剤層、１４
……封口部。 Fig. 1 is a cutaway side view of the main parts of a lithium secondary battery according to one example of the present invention, Fig. 2 is an exploded perspective view of the battery cover, and Fig. 3 is a lithium secondary battery according to another embodiment. Figure 4 is a cut-away side view of the main parts of the battery, Figure 4 is an exploded perspective view of the battery lid, Figure 5 is a graph showing the results of a comparison test of battery cycle life, and Figure 6 is a conventional lithium secondary battery. A cutaway side view of a portion of the battery is shown. DESCRIPTION OF SYMBOLS 1... Metal container, 2... Electrode plate group, 3... Positive electrode lead wire, 6... Electrolyte, 7... Battery lid, 8...
Metal cover plate, 8a... lower surface of cover plate, 9... pole pillar, 9
a... Bottom surface of pole column, 9b... Bottom end of pole column, 11...
Annular insulating seal portion, 11a... Lower surface of seal, 1
2... Center hole, fitting hole, 13... Connectivity insulating sheet, 13a... Base material, 13b... Adhesive layer, 14
...Sealing section.

Claims

[Scope of Claim for Utility Model Registration] 1. In the opening of the battery container main body, which is formed by accommodating a group of electrode plates inside a metal container and injecting and filling an electrolyte,
A battery consisting of a metal cover plate, a terminal pole post inserted through a through hole provided in the cover plate, and an annular seal portion that fills and seals an annular gap between the outer peripheral surface of the pole pole and the edge of the through hole. A cover plate is applied, the periphery of the cover plate and the mouth edge of the container are sealed and tied together airtightly, a lead wire derived from one polarity plate of the electrode plate group is connected to the container, and the other is connected to the container. In a sealed secondary battery in which a lead wire derived from a polar plate with a polarity of A sealed secondary battery made of 2. The sealed secondary battery according to claim 1, wherein the lower surface of the pole column is located at the same level as the lower surface of the annular insulating seal portion on the outer periphery of the pole column and the lower surface of the cover plate. 3 positioning the lower surface of the pole pole below the lower surface of the annular insulating seal portion on its outer periphery and the lower surface of the cover plate;
2. The sealed secondary battery according to claim 1, wherein an adhesive insulating sheet is fitted and adhered to the lower end of the protrusion through a fitting hole in the center thereof. 4. The sealed secondary battery according to claim 1, wherein the annular insulating sheet is formed by applying a corrosion-resistant electrolyte-based adhesive to a corrosion-resistant electrolyte-based sheet base material.