JPS5836570U

JPS5836570U - battery

Info

Publication number: JPS5836570U
Application number: JP1981131565U
Authority: JP
Inventors: 茂雄小林; 小黒　秀祐; 孝一井上; 大塚　央陽; 品川　知之
Original assignee: 松下電器産業株式会社
Priority date: 1981-09-03
Filing date: 1981-09-03
Publication date: 1983-03-09

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は渦巻状電極体を備えた円筒型電池の縦断面図、
第２図、第３図は従来の巻芯を兼ねた筒状集電体の斜視
図、第４図、第５図は本考案における巻芯を兼ねた筒状
集電体の斜視図、第６図は筒状集電体のスリットに電極
芯材を挿入して巻回する際の説明図である。１・・・負極板、２・・・セパレータ、３・・・正極板
、４・・・封口蓋、６・・・電池容器、７・・・巻芯を
兼ねた筒状集電体、７ａ・・・スリット、７ｂ・・・凸
部。Figure 1 is a longitudinal cross-sectional view of a cylindrical battery equipped with a spiral electrode body;
2 and 3 are perspective views of a conventional cylindrical current collector that also serves as a winding core. FIGS. 4 and 5 are perspective views of a cylindrical current collector that also serves as a winding core in the present invention. FIG. 6 is an explanatory diagram when inserting the electrode core material into the slit of the cylindrical current collector and winding it. DESCRIPTION OF SYMBOLS 1... Negative electrode plate, 2... Separator, 3... Positive electrode plate, 4... Sealing lid, 6... Battery container, 7... Cylindrical current collector that also serves as a winding core, 7a ...Slit, 7b...Protrusion.

Claims

[Scope of utility model registration request]

(1) A butted cylindrical current collector that also serves as the winding core of the spiral electrode body is provided, and the cylindrical current collector has a slit provided in the vertical direction, one of which has a smooth surface, and the other facing the slit has a convex surface. Part ah”
A battery with wavy uneven parts.

(2) The battery according to claim 1, wherein the cylindrical current collector has a convex portion or a wavy uneven portion on one of the slits facing in the winding direction.