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Coating mechanism, slit coating device and film preparation method

A coating and film-forming technology, which is used in devices for coating liquid on surfaces, coatings, and final product manufacturing. It can solve the problems of high cost and poor film-forming quality, and achieve low cost and easy mass production , the effect of enhancing wettability

Active Publication Date: 2020-03-31
山西能际智能科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] By providing a coating mechanism, a slit coating device and a film preparation method, the present invention solves the problem of high cost and poor film-forming quality of the gel polymer lithium-ion battery film-forming device and method in the prior art technical issues

Method used

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  • Coating mechanism, slit coating device and film preparation method
  • Coating mechanism, slit coating device and film preparation method
  • Coating mechanism, slit coating device and film preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In this embodiment, a coating mechanism 2 is provided, please refer to figure 1 , figure 1 It is the structural diagram of the slit coating device in the embodiment of the present application, such as figure 1 As shown, the coating mechanism 2 includes: a base 200, a pallet 201, a movable support member 202 and a fluid storage tank 240 with a nozzle 210; the pallet 201 and the movable support member 202 are fixed on the on the base 200; wherein, the fluid storage tank 240 is fixed on the movable support member 202, so as to move relative to the pallet 201 driven by the movable support member 202; wherein, in the During the movement of the fluid storage tank 240 , the fluid material in the fluid storage tank 240 is coated onto the sample to be coated fixed on the pallet 201 through the nozzle 210 to directly form a film.

[0037] Specifically, the sample may be one or more of positive electrode sheets or negative electrode sheets.

[0038] In the specific implementation...

Embodiment 2

[0057] In this embodiment, a slit coating device is provided, such as figure 1 As shown, the device includes:

[0058] A horizontal support platform 1; the horizontal support platform 1 is fixed with the coating mechanism 2 provided in the first embodiment, the base material transfer mechanism 3 and the film-forming thermostat box 4;

[0059] Wherein, the base material transfer mechanism 3 is located between the coating mechanism 2 and the film-forming incubator 4, so as to transfer the coated sample to the film-forming incubator 4 for heating to form a film.

[0060] Since the coating mechanism 2 has been introduced in detail in the first embodiment, it will not be repeated here.

[0061] First, the base material transfer mechanism 3 is introduced.

[0062] The main function of the base material transfer mechanism 3 is to realize the clamping, transferring and turning up and down of the sample.

[0063] In the embodiment of this application, as figure 1 and image 3 As s...

Embodiment 3

[0081] In this example, a film preparation method is provided, please refer to Figure 5 , Figure 5 It is a step diagram of the film preparation method in the embodiment of the present application, the method is applied to the slit coating device described in the second embodiment, and the method includes:

[0082] Step S501, the fluid storage tank 240 is moved relative to the pallet 201 driven by the movable support member 202, and the fluid material is uniformly applied to the pallet 201 through the nozzle 210 and fixed on the sample to be coated;

[0083] Step S502, the base material transfer mechanism 3 transfers the coated sample to the film-forming incubator 4;

[0084] Step S503 , heating the coated sample through the film-forming thermostat 4 to form a film on the surface of the sample.

[0085] The following takes the film formation on both sides of the sample as an example to illustrate the method:

[0086] First, the fluid storage tank 240 moves under the drive o...

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Abstract

The invention discloses a coating mechanism, a slit coating device and a film forming method. The coating mechanism comprises: a base, a support platform, a movable support part and a fluid storage tank with nozzles; the support platform and the movable support part Both are fixed on the base; the fluid storage tank is fixed on the movable supporting part to move relative to the pallet driven by the movable supporting part; during the movement of the fluid storage tank, the fluid material in the fluid storage tank passes through the nozzle Apply to the sample to be coated fixed on the pallet to form a film directly. The mechanism, device and method provided by the invention are used to solve the technical problems of high cost and poor film-forming quality existing in the gel polymer lithium ion battery film-forming device and method in the prior art. A slit coating device with low cost and uniform coating is provided.

Description

technical field [0001] The invention relates to the technical field of battery manufacturing equipment, in particular to a coating mechanism, a slit coating device and a film preparation method. Background technique [0002] Due to the advantages of high working voltage, long cycle life, high energy density, small size, light weight, and low pollution, lithium-ion batteries have been widely used in electronic products such as mobile phones and notebook computers, and have become power batteries for electric vehicles in the future. One of the preferred power sources. The gel polymer electrolyte has the dual functions of a separator and an ion-conducting carrier in a liquid electrolyte battery system. Since there is no or a small amount of free solvent in the system, the gel polymer electrolyte can fundamentally solve the problems of liquid leakage, flammability and explosion that may occur during the use of traditional lithium-ion batteries, and significantly improve the per...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05C5/00B05C11/10B05C11/00H01M10/058H01M10/0565
CPCB05C5/00B05C11/00B05C11/10H01M10/0565H01M10/058Y02E60/10Y02P70/50
Inventor 夏立向勇彭晓丽牟成旭蒲万锦贺金味邵胜彬张虎苏兴
Owner 山西能际智能科技有限责任公司
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