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Battery with leads

A battery and lead plate technology, applied in the field of batteries with leads, can solve the problem of limited welding area, achieve the effect of good miniaturization and improve the connection strength

Inactive Publication Date: 2010-09-01
SANYO ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the welding area between the lead plate and the conductive part provided on the circuit substrate is increased, the welding strength between the lead plate and the circuit substrate can be enhanced, but due to the limitation of the mounting area on the circuit substrate, the welding area is also limited.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0030] Next, in the coin-shaped secondary lithium battery 10 produced as described above, as figure 1As shown, the positive electrode lead plate 13 is respectively fixed on the outer surface of the positive electrode cylinder 11 by spot welding or laser welding, and the negative electrode lead plate 14 is fixed on the outer surface of the negative electrode cap 12, so that the coin-shaped two with lead wires of Example 1 are produced. Secondary lithium battery 10A.

[0031] In this case, the positive electrode lead plate 13 is made of a substantially rectangular flat plate made of stainless steel, and the part extending from the outer shape of the coin-shaped secondary lithium battery 10 is bent so as to be parallel to the side wall of the positive electrode can 11. It is bent horizontally at approximately the same height as the battery 10, and a welding portion 13a is formed at the end of the back surface.

[0032] On the other hand, the negative electrode lead plate 14 wel...

Embodiment 2

[0035] Also, in the coin-shaped secondary lithium battery 10 manufactured as described above, as figure 2 As shown, the negative electrode lead plate 15 is respectively fixed on the outer surface of the negative electrode cap 12 by spot welding or laser welding, and the positive electrode lead plate 16 is fixed on the outer surface of the positive electrode cylinder 11, so that the coin-shaped two with lead wires of Example 2 are produced. Secondary lithium battery 10B. In this case, the negative electrode lead plate 15 is composed of a substantially rectangular stainless steel flat plate, and the part extending from the outer shape of the coin-shaped secondary lithium battery 10 is bent so as to be parallel to the side wall of the positive electrode can 11, and The welding portion 15 a is formed by horizontally bending at a position approximately equal to the height of the battery 10 . On the other hand, the positive electrode lead plate 16 welded to the outer surface of th...

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PUM

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Abstract

A battery (10A) with leads, in which an opening of a flat exterior can (11) is hermetically sealed by a sealing plate (12) with an insulating gasket placed between them. Lead plates (13, 14) are welded to the electrode terminals (11, 12), respectively, and one of the lead plates is secured to a circuit board (X). The lead plate (14) secured to the circuit board (X) has a mesh structure.

Description

technical field [0001] The present invention relates to a battery used as a main power source or a backup power source of various electronic devices, and more particularly to a battery with lead wires in which the opening of a flat outer casing serving as one electrode terminal is used as another electrode terminal via an insulating gasket. The sealing plate of one electrode terminal is hermetically sealed, and the lead plates are respectively welded to the two electrode terminals. Background technique [0002] Secondary lithium batteries have been widely used as main or backup power sources for various electronic devices due to their small size, light weight, high energy density, and good storage properties. As secondary lithium batteries incorporated in these devices, coin-shaped or cylindrical shapes are used, and a method of directly mounting them on a printed circuit board is widely used. In this case, when mounting the secondary lithium battery on a circuit board such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/30H01M2/02H01M10/40H05K1/18H01M10/05H01M50/548H01M50/559H01M50/566
CPCH01M2/30H01M2/0222H05K2201/0373H05K2201/09681H01M10/052H05K3/341H01M2/10H01M2/204H05K3/3426Y02P70/50Y02E60/10H01M50/109H01M50/548H01M50/559H01M50/566H01M10/05
Inventor 近藤正雄赤井泰夫池田佳久庄濑知行
Owner SANYO ELECTRIC CO LTD