Method and device for making extension net slice and battery using the extension net slice

A manufacturing method and a manufacturing device technology, which are applied in the directions of electrode manufacturing, final product manufacturing, sustainable manufacturing/processing, etc., can solve problems such as difficulty in manufacturing extended mesh sheets, and achieve improved welding reliability, good current collection, and The effect of increasing strength

Inactive Publication Date: 2004-06-30
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However if Figure 18 As shown, when the traditional reciprocating method is used for processing, due to the extension method, the entire metal sheet can only be processed into a mesh, and it is difficult to manufacture an extended mesh sheet with a blank part

Method used

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  • Method and device for making extension net slice and battery using the extension net slice
  • Method and device for making extension net slice and battery using the extension net slice
  • Method and device for making extension net slice and battery using the extension net slice

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Embodiment Construction

[0052] Combined with Figure 1~ Figure 8 One embodiment of the present invention will be described.

[0053] Fig. 1 shows the processing steps performed by the method of manufacturing the expanded mesh sheet of the present invention. The extended mesh sheet of the present embodiment forms fine meshes on a thin strip metal sheet, such as a copper sheet or an aluminum sheet, and at the same time, a blank portion without meshes is provided at its central part and both sides, as a structure for forming a non-aqueous electrolyte battery. The current collector of the electrode plate is used.

[0054] In FIG. 1 , the elongated metal sheet B spirally wound around the coil part 10 is pulled out from the end and sent to the slit forming part 11 . In the slit forming part 11, the upper mold and the lower mold, which are formed by overlapping the plate-shaped cutters described later, are arranged oppositely, and are driven forward and backward by the opposite direction, such as figure...

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Abstract

A method for manufacturing expanded mesh sheet is provided, including laminating a plurality of tabular cutter forming bladed part for joint-cutting in prescribed space to form upper die and lower die; delivering the metal strip piece into the space of the upper die and lower die; driving and reversing oppositely by driving the upper die and lower die; forming a plurality of slot crosslinkingly along the length direction of the strip piece; then expanding the strip piece to form mesh. The invention can effectively process mesh by reciprocating type and can process the reticular piece with slight mesh which is necessary for small-sized and powerful battery.

Description

[0001] Involved areas [0002] The present invention relates to an extended mesh sheet suitable for use as a current collector of a battery, and in particular to a manufacturing method and device for an extended mesh sheet capable of forming fine meshes on a thin metal sheet for realizing miniaturization, thinning and high performance. The extended mesh sheet is the battery. Background technique [0003] As the size, thickness, and weight of portable devices such as mobile phones progress, batteries used as their power sources are required to be smaller, lighter, and have higher performance. There is a battery developed to meet this requirement. The structure of the polymer electrolyte battery is as follows: Figure 13 with Figure 14 shown. In this battery, a laminated electrode 4 formed by laminating a positive electrode plate 1 and a negative electrode plate 2 through a separator plate 3 is housed in a casing 7 formed of laminated sheets. Such as Figure 13 XIV-XIV secti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D31/04
CPCB21D31/043Y10T29/185Y10T29/18Y10T29/10Y02P70/50
Inventor 合田佳生小川昌彦小林宽之中冢三郎
Owner PANASONIC CORP
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