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Battery cell production equipment and battery cell manufacturing method

A technology of production equipment and manufacturing methods, applied in the direction of final product manufacturing, electrochemical generators, sustainable manufacturing/processing, etc., can solve problems affecting the quality of winding batteries, active material falling off, etc.

Active Publication Date: 2020-08-21
JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after winding and pre-pressing, the part corresponding to the narrow surface of the winding cell has wrinkles or the active material falls off, which affects the quality of the winding cell

Method used

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  • Battery cell production equipment and battery cell manufacturing method
  • Battery cell production equipment and battery cell manufacturing method
  • Battery cell production equipment and battery cell manufacturing method

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Embodiment Construction

[0046] The implementation manner of the present application will be further described in detail below with reference to the drawings and embodiments. The detailed description and drawings of the following embodiments are used to illustrate the principles of the application, but not to limit the scope of the application, that is, the application is not limited to the described embodiments.

[0047] In the description of this application, it should be noted that, unless otherwise specified, the meaning of "plurality" is more than two; the terms "upper", "lower", "left", "right", "inner", " The orientation or positional relationship indicated by "outside" and so on are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a reference to this app...

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PUM

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Abstract

The invention relates to battery cell production equipment and a battery cell manufacturing method. The battery cell production equipment comprises a winding needle, discharging assemblies and a battery cell supporting piece. The winding needle is used for manufacturing a winding battery cell. The two discharging assemblies are arranged separately. The two discharging assemblies are configured totake down the wound battery cell from the winding needle and horizontally move away from each other so as to stretch the wound battery cell. The cell supporting piece is configured to be inserted intoor withdrawn from a center hole of the wound cell in the axial direction of the winding needle. When the cell supporting piece is inserted into the center hole, the orthographic projection of the battery cell supporting piece is located between the orthographic projections of the two discharging assemblies in the vertical direction, and the cell supporting piece is used for bearing the upper halfportion of the wound battery cell. According to the battery cell production equipment and the battery cell manufacturing method, the possibility that the wound battery cell wrinkles or an active substance material falls off is reduced.

Description

technical field [0001] The present application relates to the technical field of battery processing equipment, and in particular to battery production equipment and a battery manufacturing method. Background technique [0002] In the production process of power lithium batteries, it is necessary to use winding equipment to wind the pole pieces into batteries. In the initial step of winding, the winding needle pre-winds a certain number of layers of the inner separator and the outer separator, and then sends the pole piece to the winding needle, and finally makes the pole piece and the separator be wound together by the winding needle to form a wound electric coil. core. The winding cell is a multi-layer structure formed by separators and pole pieces. The pole pieces are coated with active material substances. After being wound and pre-pressed and shaped, the wound cell has a flat structure with alternately arranged wide and narrow faces. However, after being wound and pr...

Claims

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Application Information

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IPC IPC(8): H01M10/0587H01M10/052
CPCH01M10/052H01M10/0587Y02E60/10Y02P70/50
Inventor 张小畏林江吴丙钊吴永江
Owner JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED