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Secondary battery and manufacturing system and method therefor

A secondary battery and manufacturing system technology, applied in secondary battery manufacturing, secondary battery, alkaline battery manufacturing, etc., can solve the problems of secondary battery life reduction, increase in the number of parts, output voltage drop, etc., to achieve output and Effect of life improvement

Inactive Publication Date: 2004-08-18
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, for the secondary battery according to the above disclosure, when the spiral electrode group is connected with a current collector, the output voltage drops due to an increase in internal resistance
Also, this connection increases the number of parts, which increases the number of man-hours required to manufacture the secondary battery
[0008] In addition, for a secondary battery outputting a high voltage, unless sufficient cooling is provided, the life of the secondary battery decreases

Method used

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  • Secondary battery and manufacturing system and method therefor
  • Secondary battery and manufacturing system and method therefor
  • Secondary battery and manufacturing system and method therefor

Examples

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no. 1 example

[0089] combine now Figure 1-7B A first exemplary embodiment of the present invention will be described.

[0090] figure 1 A secondary battery 100 according to a first exemplary embodiment of the present invention is shown. The secondary battery 100 has a plurality of single cells arranged in one direction. The battery is used, for example, to supply power to an electric motor (not shown) to be mounted in a hybrid vehicle or as a power source for home appliances and the like.

[0091] like figure 1 As shown, the secondary battery 100 includes a hollow shaft 110, a battery case 120, a positive plate 202, a negative plate 206, separators 204 and 208, an insulating plate (not shown) and an electrolyte (also not shown). out). The insulating plate is wound inside the battery case 120 . Positive plate 202, negative plate 206, and separators 204 and 208 are wound on shaft 110 to the inside of the insulating plates, as described below. The secondary battery 100 is then crimped ...

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Abstract

A secondary battery (100) includes cells (A and B) that include a shaft (110), a battery case (120), a positive electrode sheet (202), a negative electrode sheet (206), a separator sheet (204, 208), and electrolytic solution. An edge portion of the positive electrode sheet (202) in the cell (A) is overlapped and joined with an edge portion of the negative electrode sheet (206) in the adjacent cell (B).

Description

technical field [0001] The invention relates to a secondary battery and its manufacturing system and method. More particularly, the present invention relates to a secondary battery in which a plurality of single cells are connected together in one direction, and a manufacturing system and method thereof. Background technique [0002] As a secondary battery to be mounted in a hybrid vehicle, a cylindrical, sealed type nickel-metal hydride secondary battery having a structure as shown in FIG. 14 is known (for example, see Electric Vehicle Handbook (2001), Electric Vehicle Handbook, pp. .261-262, Maruzen). [0003] 14, the secondary battery 1400 includes a casing 1410, a positive electrode collector 1420, a positive electrode plate 1422, a negative electrode collector 1430, a negative electrode plate 1432, a separator 1440, an insulating gasket 1450, an end Cap 1460 , a safety valve 1470 , a sealing plate 1480 and an insulating ring 1490 . In this secondary battery 1400, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/02H01M10/00H01M50/528H01M10/04H01M10/28
CPCY02E60/12H01M10/0431H01M4/0435H01M10/0404H01M2/204Y02E60/10Y02P70/50F16K31/18F16K24/00F16K47/023
Inventor 西出行正
Owner TOYOTA JIDOSHA KK