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A method of manufacturing pole piece coil material

A production method and coil material technology, which is applied in the direction of electrode manufacturing, coating, and liquid coating device on the surface, etc., can solve the problems of high cost, easy dislocation of pole pieces, low efficiency, etc., and achieve cost reduction and solvent volume reduction , the effect of increasing efficiency

Active Publication Date: 2022-03-15
YINLONG ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the purpose of the present invention is to provide a method for manufacturing pole piece coils, which is used to solve the problems of high cost, low efficiency and easy dislocation of pole pieces when making pole pieces from foil current collectors

Method used

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  • A method of manufacturing pole piece coil material
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Embodiment Construction

[0029] The present invention is described below based on the embodiments, and those skilled in the art should understand that the drawings provided here are for the purpose of illustration, and the drawings are not necessarily drawn to scale.

[0030] Unless the context clearly requires, throughout the specification and claims, "comprises", "comprises" and similar words should be interpreted in an inclusive sense rather than an exclusive or exhaustive meaning; that is, "including but not limited to" meaning. refer to figure 1 As shown, the present invention provides a kind of pole sheet coil material manufacturing method, and it comprises the steps:

[0031] S1: Make an active slurry with a viscosity of 30000mPa·s-150000mPa·s;

[0032] S2: providing a mesh collector, coating the active slurry obtained in S1 on the mesh collector to form an intermediate product;

[0033] S3: Drying the intermediate product obtained in S2 and winding it to form a pole sheet coil.

[0034] Sp...

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Abstract

The invention discloses a method for making a pole piece coil material, which comprises the following steps: S1: making active slurry with a viscosity of 30000mPa·s-150000mPa·s; S2: providing a net-shaped current collector, and using the active slurry obtained in S1 Coating the intermediate product on the mesh current collector to form an intermediate product; S3: drying the intermediate product obtained in S2 and winding it to form a pole sheet coil. In a kind of pole piece coil material production method of the present invention, owing to adopting the mesh current collector, on the one hand, the amount of solvent required for the high-viscosity active slurry is reduced, and the cost is reduced; The active slurry is coated on both sides of the mesh current collector, thereby increasing the efficiency and avoiding the hidden danger of dislocation of the pole pieces.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a method for manufacturing pole piece coils. Background technique [0002] Currently, batteries have become an important energy storage device. The method of making batteries in the prior art is to coat the slurry with a viscosity between 1000mPa·s-18000mPa·s on the front and back sides of the foil current collector, and then dry to prepare pole pieces. The method has the following disadvantages: first, the stirring time for making the slurry is too long, and the production efficiency is low; second, different batteries have different requirements for the viscosity of the slurry. In order to adjust the viscosity of the slurry, the amount of solvent used Larger, which in turn makes the cost higher, and some solvents even need a matching solvent recovery system, which will further increase the cost; third, because the current collector is a foil material, the coating effect is c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/04B05D1/02
CPCH01M4/04B05D1/02Y02E60/10
Inventor 陈晓龙蔡惠群李海军王永光
Owner YINLONG ENERGY CO LTD
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