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Electrochemical device

An electrochemical and electrode technology, which is applied in the field of electrochemical devices, can solve the problems of high manufacturing cost of containers, high manufacturing cost of insulating parts, and difficulty in reducing the manufacturing cost and sales price of electrochemical devices, so as to reduce manufacturing costs, simplify structures, and sell The effect of price reduction

Inactive Publication Date: 2013-03-27
SAMSSIN DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In this way, the conventional electrochemical device needs to be equipped with welding rings, wiring for the first terminal, and wiring for the second terminal on the insulating member constituting the container, so the manufacturing cost of the container, especially the manufacturing cost of the insulating member, is high. Therefore, it is difficult to reduce the manufacturing cost of the electrochemical device, that is, the sales price

Method used

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Embodiment Construction

[0033] figure 1 as well as figure 2 An electrochemical device according to one embodiment of the present invention is shown. The electrochemical device 10 shown in the above-mentioned drawings includes: a container 11 having a substantially rectangular parallelepiped shape; an electrical storage element 16 and an electrolytic solution (not shown) enclosed in the container 11; Different first terminals 14 and second terminals 15 . When the container 11 is attached, the lower surface thereof is disposed so as to face the printed circuit board.

[0034] The container 11 includes: a substantially rectangular parallelepiped-shaped first metal member 11a having a substantially rectangular cross-sectional profile and a concave portion 11a1 opened on the upper surface side; and a plate-shaped second metal member 11b having a The metal member 11b is directly welded to the first metal member 11a so as to close the opening of the concave portion 11a1 of the first metal member 11a. T...

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Abstract

One embodiment of the invention relates to a container (11) of a surface mounting type electrochemical device (10), which comprises a first metal member (11a) with a concave part (11a1); and a second metal member (11b) directly welded on the first metal member (11a) to seal the opening part of the concave part (11a1). The first electrode (16a) of an accumulator element (16) is electrically insulated from the container (11). The second electrode (16b) of the accumulator element (16) is electrically conducted with the container (11). A first terminal (14) is electrically insulated from the container (11) and is electrically conducted with the first electrode (16a) of the accumulator element (16) via a relay unit (13). A second terminal (15) is electrically conducted with the container (11) and is also electrically conducted with the second electrode (16b) of the accumulator element (16) via the container (11).

Description

[0001] cross reference [0002] This application claims priority based on JP Patent application 2011-196858 (filed on September 9, 2011), and takes in all the content in this specification by reference. technical field [0003] The present invention relates to an electrochemical device having a structure in which a chargeable and dischargeable energy storage element and an electrolytic solution are enclosed in a container. Background technique [0004] Conventional electrochemical devices of this type are roughly classified into surface mount type (square type), coin type, thin type, and cylindrical type. A surface mount type electrochemical device is provided with a first terminal and a second terminal having different polarities on the mounting surface. Since the surface-mounted electrochemical device can be surface-mounted on a circuit board like surface-mounted parts such as chip capacitors and chip resistors, it is frequently used for mounting in various electronic dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/08H01G9/008
CPCH01G9/008H01G9/06
Inventor 萩原直人
Owner SAMSSIN DEVICE CO LTD