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Battery package

A battery and single cell technology, applied to battery pack parts, circuits, electrical components, etc., can solve the problems of copper foil layer floating and peeling, and achieve the effect of correct and reliable shunting

Inactive Publication Date: 2012-05-09
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a problem of floating and peeling of the copper foil layer due to the melting of the paste material

Method used

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Embodiment Construction

[0047] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiment shown below is an example showing the embodiment of the circuit board 10 for realizing the technical idea of ​​the present invention, and the present invention does not specify the circuit board 10 as the following configuration.

[0048] In addition, in this specification, symbols corresponding to members shown in the embodiments are attached to members shown in “claims” and “summary of the invention” in order to facilitate understanding of the claims. However, the components shown in the claims are by no means specified as the components of the embodiment.

[0049] The packaged battery of the present invention is mainly mounted on an electronic device, and supplies electric power to the main body of the electronic device. The packaged battery used for such purpose has a circuit board 10 for the purpose of charge and discharge protection of the s...

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Abstract

The present invention aims to provide a battery package in which paste material below a copper foil layer is hardly melted when point welding is directly performed on the copper foil layer in a substrate terminal without Ni blocks for point welding. In a terminal part (11) of a circuit substrate (10) on which a paste material layer (101) and the copper foil layer (102) are successively stacked on the surface of a printed substrate (100), the copper foil layer (102) is provided with an incision part (102C). A wiring plate (L) is stacked on the surface of the copper foil layer (102) of the terminal part (11). When a pair of electrode rods abuts against the surface of the wiring plate (L) for performing point welding on the wiring plate (L) and the copper foil layer (102), the incision part (102C) of the copper foil layer (102) is provided between a pair of copper foil layer point welding position (SP) which correspond with the positions of a pair of electrode rods that abut against the wiring plate (L), thereby shunting the point welding current. Therefore generated heat is dispersed, thereby preventing melting of the paste material below the copper foil layer.

Description

technical field [0001] The present invention relates to a packaged battery used as a power supply of small electronic devices such as mobile phones and personal computers, and more particularly to a circuit board for electrically protecting the packaged battery. Background technique [0002] In recent years, the miniaturization and weight reduction of various electronic devices has progressed, and many devices that are light and easy to carry are commercialized. For portable devices, a commercial AC cannot be used as a driving power source, so batteries are used. [0003] Recently, lithium-ion batteries having higher energy density than nickel-cadmium batteries and nickel-metal hydride batteries have been developed. However, since lithium-ion batteries tend to deteriorate when overcharged or overdischarged, a protective circuit board that prevents overcharge or overdischarge is required. [0004] The circuit board is composed of a printed circuit board and a plurality of e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02H01M2/10
CPCY02E60/12Y02E60/10
Inventor 西田大辅
Owner SANYO ELECTRIC CO LTD
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