JPH01174854U

JPH01174854U -

Info

Publication number: JPH01174854U
Application number: JP1989002969U
Authority: JP
Priority date: 1988-02-26
Filing date: 1989-01-13
Publication date: 1989-12-12
Anticipated expiration: 2004-01-13
Also published as: JPH066460Y2

Description

[Brief explanation of drawings]

第１図乃至第３図は本考案の第１の実施例に係
り、第１図は組立直後の電池の縦断面図、第２図
は落下試験後の電池の縦断面図、第３図は第１図
の右側上部の要部拡大断面図である。第４図乃至
第６図は第３図に対応する比較電池の要部拡大断
面図である。第７図乃至第９図は本考案の第２図
の実施例に係り、第７図は組立直後の電池の縦断
面図、第８図は落下試験後の電池の縦断面図、第
９図は第７図の左側下部の要部拡大断面図である
。第１０図乃至第１２図は第９図に対応する比較
電池の要部拡大断面図である。第１３図乃至第１
５図は本考案の第３の実施例に係り、第１３図は
組立直後の電池の縦断面図、第１４図は落下試験
後の電池の縦断面図、第１５図は第１３図の左側
下部の要部拡大断面図である。第１６図乃至第１
８図は第１５図に対応する比較電池の要部拡大断
面図である。１……正極板、２……芯体、２′……かえり部
、３……正極リード片、４……負極板、５……負
極リード片、６……セパレータ、７……ワツシヤ
ー、８……外装缶、９……中心孔、１０……内向
突起、１１……封口蓋、１２……絶縁パツキング
。 1 to 3 relate to the first embodiment of the present invention, in which FIG. 1 is a vertical cross-sectional view of the battery immediately after assembly, FIG. 2 is a vertical cross-sectional view of the battery after a drop test, and FIG. FIG. 2 is an enlarged cross-sectional view of the main part of the upper right side of FIG. 1; 4 to 6 are enlarged sectional views of main parts of a comparative battery corresponding to FIG. 3. 7 to 9 relate to the embodiment of the present invention shown in FIG. 2, in which FIG. 7 is a vertical sectional view of the battery immediately after assembly, FIG. 8 is a vertical sectional view of the battery after a drop test, and FIG. 9 is a vertical sectional view of the battery immediately after assembly. 7 is an enlarged sectional view of a main part of the lower left side of FIG. 7. FIG. 10 to 12 are enlarged sectional views of main parts of a comparative battery corresponding to FIG. 9. Figures 13 to 1
Figure 5 relates to the third embodiment of the present invention, Figure 13 is a vertical cross-sectional view of the battery immediately after assembly, Figure 14 is a vertical cross-sectional view of the battery after a drop test, and Figure 15 is the left side of Figure 13. It is an enlarged sectional view of the main part of the lower part. Figures 16 to 1
FIG. 8 is an enlarged sectional view of a main part of a comparative battery corresponding to FIG. 15. DESCRIPTION OF SYMBOLS 1...Positive electrode plate, 2...Core, 2'...Barb, 3...Positive electrode lead piece, 4...Negative electrode plate, 5...Negative electrode lead piece, 6...Separator, 7...Washer, 8 ... External can, 9 ... Center hole, 10 ... Inward projection, 11 ... Sealing lid, 12 ... Insulating packing.

Claims

[Scope of Claim for Utility Model Registration] A positive electrode plate in which an active material is held in the electrode plate core, and a negative electrode plate made of a metal plate with one end of a negative electrode lead piece fixed to one side are wound together with a separator interposed therebetween. It has a spiral electrode body, and the outer case that houses the electrode body also serves as a positive electrode terminal, and the negative electrode lead piece is fixed to the outer surface of the negative electrode plate, and its free end is directed toward the center of the battery. The bent end portion is fixed to the inner bottom surface of the negative electrode terminal member that closes the opening of the outer can, and the curvature direction of the electrode plate core at the upper end surface of the positive electrode plate is in the direction of the inner and outer circumferences of the battery. A cylindrical battery characterized by: It has a spiral electrode body in which a positive electrode plate having an active material held in the electrode plate core and a negative electrode plate made of a metal plate and having one end of a negative electrode lead piece fixed to one side thereof are wound with a separator interposed therebetween; The outer can housing the electrode body also serves as a negative electrode terminal, and the negative electrode lead piece is fixed to the inner surface of the negative electrode plate, and its free end is bent toward the center of the battery, and the end thereof is bent toward the center of the battery. A cylindrical battery, wherein the cylindrical battery is fixed to an inner bottom surface of an outer can, and the direction of curvature of the electrode plate core at the lower end face of the positive electrode plate is toward the center of the battery. It has a spiral electrode body in which a positive electrode plate having an active material held in the electrode plate core and a negative electrode plate made of a metal plate and having one end of a negative electrode lead piece fixed to one side thereof are wound with a separator interposed therebetween; The outer case housing the electrode body also serves as a negative electrode terminal, and the negative electrode lead piece is fixed to the outer surface of the negative electrode plate located at the outermost periphery of the electrode body, and its free end is directed toward the center of the battery. A cylindrical battery, wherein the bent end portion is fixed to the inner bottom surface of the outer can, and the curvature direction of the electrode plate core at the lower end surface of the positive electrode plate is toward the center of the battery. .