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2024年11月13日星期三

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0.1.

Lithium-ion Full Cell Manufacturing Process

0.2.

Training--Adhesive Section

1.

1.The function of adhesives

Cathode and anode slurries

Provide viscosity to ensure that particles in the slurry do not easily settle and maintain sslurry stability

Provide viscosity for good fluidity

Provide viscosity to facilitate effective dispersion of materials

 

Cathode and anode electrodes

Provide adhesive force to ensure good contact between active materials, conductive carbon, and current collectors.

Provide adhesive force to ensure good contact between particles.

The rolling process is resistant to deformation and breakage.


 

2.

2.Common classifications of  adhesives

2.1.Commonly Used adhesives:

PVDF— Commercially Used Cathode adhesive

CMC,SBR—Commercially Used Anode  adhesive

PTFE—Adhesive for Supercapacitors.

2.2.New adhesives:
PAA—High-Strength Silicon Anode  adhesive
PAN—Improved Rate Capability and Low-Temperature Performance
PMMA—Experimental Type
PAI—Experimental Type
PI—Experimental Type
PVA(Polyvinyl Alcohol) —Experimental Type
Sodium Alginate - Experimental Type

3.

3.Major Manufacturers of Commercial

4.

Adhesives

 

5.

4.Usage Suggestions

With numerous manufacturers and a wide range of adhesive models available,how do we         make the right choice?

 

4.1.Choose mainstream manufacturers' products to ensure quality

4.2.Opt for products that have been used in commercial batches for reliable performance

4.3.Clarify the application requirements of the product and make targeted selections of

adhesives based on the characteristics of the research materials

 

Recommended that everyone clearly consider the product requirements and material characteristics before use.
If you have any questions or need advice, please feel free to consult with Canrd Technology.

  1. 5.

    Problem of PVDF Glue Solution

     

6.

Discoloration

In practical use, PVDF glue solutions often encounter the issue of darkening in color,         sometimes even turning a dark red hue. What is the reason for this? Is it still usable?