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Cutting method and cutting equipment of aluminum-plastic foil, battery and manufacturing method of battery

A foil, aluminum-plastic technology, used in secondary battery manufacturing, battery pack components, metal processing equipment, etc., can solve the problem of affecting battery energy density, uneven dimensional accuracy of packaging films, and uniform width of the top sealing area of ​​packaging films. problems such as poor performance to achieve high accuracy

Active Publication Date: 2022-01-11
SPRINGPOWER TECHNOLOGY (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, using the above method to make the packaging film of the battery cell, the width consistency of the top sealing area of ​​the packaging film is poor, resulting in uneven dimensional accuracy of the packaging film, namely The width tolerance of the top sealing area of ​​some packaging films is more than 0.5 mm, which affects the energy density of the battery

Method used

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  • Cutting method and cutting equipment of aluminum-plastic foil, battery and manufacturing method of battery
  • Cutting method and cutting equipment of aluminum-plastic foil, battery and manufacturing method of battery
  • Cutting method and cutting equipment of aluminum-plastic foil, battery and manufacturing method of battery

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Embodiment Construction

[0039] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific ...

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Abstract

The invention discloses a cutting method and cutting equipment of an aluminum-plastic foil, a battery and a manufacturing method of the battery. The cutting method comprises the following steps that an aluminum-plastic foil is provided, the edge of one side of the aluminum-plastic foil is a top sealing edge, the aluminum-plastic foil is provided with a punching pit area, the area between the punching pit area and the top sealing edge is a top sealing area, and the top sealing area is used for packaging the head of a battery cell; the aluminum-plastic foil is stamped so as to form a pit in the punching pit area; and the aluminum-plastic foil is cut in the tape conveying direction of the aluminum-plastic foil so that the width of the top sealing area can be adjusted. The aluminum-plastic foil is cut along the tape feeding direction of the aluminum-plastic foil, so that the consistency of the distance between each pit and the top sealing edge is ensured, and the energy density of each battery is further ensured.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a cutting method of aluminum-plastic foil, a cutting device, a battery and a manufacturing method thereof. Background technique [0002] In the related technology, during the cutting process of the aluminum-plastic foil material of the battery, and during the movement of the aluminum-plastic foil material along the belt-running direction, the stamping equipment punches out pits at intervals along the length direction of the aluminum-plastic foil material, and the pits are used to accommodate After that, the cutting equipment cuts the aluminum-plastic foil along the width direction of the aluminum-plastic foil, so that the aluminum-plastic foil is cut into multiple sections of packaging film, and each section of packaging film is used for the packaging of one battery cell. Among them, refer to figure 1 , The edge produced by cutting the aluminum-plastic foil is the top sealing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26D9/00B26F1/44B26D1/04B21D22/04B21D37/10H01M10/04H01M50/105
CPCB26D9/00B26F1/44B26D1/045B21D22/04B21D37/10H01M10/04H01M50/105Y02E60/10Y02P70/50
Inventor 李康生张淼韩晓辉
Owner SPRINGPOWER TECHNOLOGY (SHENZHEN) CO LTD
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