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Method for controlling rolling thickness of coated large roll

A thickness control and coating technology, applied in electrode manufacturing, coiled strip, electrode current collector coating, etc., to achieve the effect of increasing monitoring and reducing the thickness measurement and estimation of multiple large coils

Active Publication Date: 2019-07-12
宜春国轩电池有限公司
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  • Abstract
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Problems solved by technology

This poses a serious challenge to the production of lithium batteries

Method used

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  • Method for controlling rolling thickness of coated large roll
  • Method for controlling rolling thickness of coated large roll

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] See figure 1 , a method for controlling the thickness of a large coating roll, specifically comprising the following steps:

[0020] (1), first place the rolled pole piece 1 coated on one side on the support roller 2 of the winding device, and the winding shaft driven by the motor on the winding device pulls the rolled pole piece 1 on the support roller 2 to carry out Rolling, the winding shaft includes a winding air expansion shaft roller 3 and a tubu...

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Abstract

The invention discloses a method for controlling the rolling thickness of a coated large roll. The thickness of a rolling pole plate with two-surface coating is calculated according to the thickness of the rolling pole piece with one-surface coating and the thickness of a pole piece base material, it is required that the surface densities of the two surfaces are be basically equal, so that the calculated thickness value of the rolling pole piece with the two-surface coating is close to an accurate value. The maximum rolling number of turns is calculated to allow the produced large roll, namelythe rolling pole plate with two-surface coating, to be just put into and fill a vacuum oven to maximally utilize the space of the vacuum oven so as to reduce the manual tedious measurement and estimation of the thickness of the large roll for many times and have great guide meaning for production by adding the monitoring for the thickness of the pole piece in the process.

Description

technical field [0001] The invention relates to the field of manufacturing lithium-ion batteries, in particular to a method for controlling the thickness of a large coating roll. Background technique [0002] In recent years, with the reduction of petroleum energy and the improvement of environmental awareness, lithium batteries have obvious advantages in high energy density, long cycle life, and environmental protection, and are increasingly favored by the market. This poses a serious challenge to the production of lithium batteries. How to maximize the utilization of equipment resources and complete production tasks with quality and quantity is the ideal goal pursued by every lithium battery company. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for controlling the thickness of a large coated roll. By controlling the diameter and thickness of the large roll, the produced large roll can be placed and...

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Application Information

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IPC IPC(8): H01M4/04B65H26/08
CPCB65H26/08H01M4/04H01M4/0404Y02E60/10
Inventor 钟明明王金龙刘兴亮张迎霞
Owner 宜春国轩电池有限公司
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