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Photocuring insulating lithium battery shell coating and preparation method thereof

A lithium battery and light curing technology, applied in the field of coatings, can solve the problems of large difference in total lithium content, low resistance, insufficient insulation performance, etc., and achieve the effects of improving efficiency, good modification effect and improving insulation effect.

Pending Publication Date: 2022-06-28
苏州佩琦材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned related technologies, the inventors found that since the total lithium content in lithium batteries of different specifications is different, and the total lithium content varies greatly, when the coating is applied to a battery case with a large lithium content, its resistance is low and the insulation performance is insufficient. , cannot well meet the insulation requirements of the lithium battery shell with a large amount of lithium. Therefore, it is of great significance to manufacture a light-cured coating with good insulation performance

Method used

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  • Photocuring insulating lithium battery shell coating and preparation method thereof
  • Photocuring insulating lithium battery shell coating and preparation method thereof
  • Photocuring insulating lithium battery shell coating and preparation method thereof

Examples

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Effect test

preparation example 1

[0045]A modified epoxy acrylate, the preparation method of which is as follows: adding 1 kg of aramid fiber nanofibers to 150 kg of acetone aqueous solution with a concentration of 20% by mass, mixing and stirring, and reacting at 80° C. for 100 min to obtain a mixed solution A; Add 100kg epoxy acrylate, 2kg phenol, 5kg silane coupling agent and 5kg catalyst to mixed solution A, mix and stir, react at 50°C for 2 hours to obtain mixed solution B, add mixed solution B to 600 kg of water, mix and stir for 20 min, filter Discard the filtrate to obtain modified epoxy acrylate;

[0046] Silane coupling agent is KH-550;

[0047] The catalyst is N,N-dimethylaniline.

preparation example 2-6

[0049] A modified epoxy acrylate is different from Preparation Example 1 in that the usage amount of each component is different, as shown in Table 1.

[0050] Components and their weights (kg) in Table 1 Preparation Examples 1-6

[0051]

[0052]

preparation example 7

[0054] A modified epoxy acrylate, the difference from Preparation Example 4 is that the aramid nanofibers are pretreated before being added to the acetone aqueous solution, and the specific treatment method is: adding 1kg of aramid nanofibers to 5kg of toluene for washing , filter and discard the filtrate, wash with 5kg of acetone aqueous solution with a mass percentage content of 20%.

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Abstract

The invention relates to the field of coatings, and particularly discloses a photocuring insulating lithium battery shell coating and a preparation method thereof. The photocuring insulating lithium battery shell coating comprises the following components in parts by weight: 30-60 parts of modified epoxy acrylate; 80 to 120 parts of a reactive diluent; 1-5 parts of a photoinitiator; 40 to 60 parts of filler; the preparation method comprises the following steps: adding the modified epoxy acrylate, the photoinitiator and the filler into the reactive diluent, and mixing and stirring to obtain the photocuring insulating lithium battery shell coating. The light-cured insulating lithium battery shell coating disclosed by the invention has good insulativity, and can well meet the insulating requirement of a large-lithium-content lithium battery shell; in addition, the preparation method disclosed by the invention has the advantages of being convenient to operate and capable of improving the efficiency of preparing the photocuring insulating lithium battery shell coating.

Description

technical field [0001] The present application relates to the field of coatings, and more particularly, to a light-cured insulating lithium battery shell coating and a preparation method thereof. Background technique [0002] Lithium battery shells are generally made of metal material, and insulating coatings are applied to the lithium battery shell to improve the insulation performance of the lithium battery shell, ensure the safe operation of the lithium battery, and prevent the occurrence of personal electric shock accidents. [0003] As an environmentally friendly coating, UV-curable coatings are widely used as wood paint, metal surface paint, paper surface paint, etc. The curing process of light-curing coatings only requires radiation energy, which is conducive to saving energy, so it has become an efficient and environmentally friendly green industrial coating. [0004] There is currently a UV-curable insulating coating, which includes the following components in part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D5/25C09D7/65
CPCC09D163/10C09D5/00C09D7/65C09D7/70C08L77/10C08L23/00
Inventor 陆宇何黎斌吴丽娜
Owner 苏州佩琦材料科技有限公司
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