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Special material for new-energy battery shell and preparation method thereof

A battery casing and new energy technology, applied in the field of special materials for new energy battery casings and their preparation, can solve the problems of insecurity, application restrictions, serious melting droplets, etc., and achieve high melting index, good fluidity, and easy processing and molding Effect

Inactive Publication Date: 2019-01-18
FOSHAN LINGXIN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polypropylene is extremely flammable, the limiting oxygen index is only 17.4-18.5, and the molten droplets are serious when burning, and it is easy to spread flames and cause fires, making its application unsafe.
This limits the application of PP in industries such as electronics, communication equipment, automobiles, electrical appliances, and building materials.

Method used

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  • Special material for new-energy battery shell and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0024] A special material for a new energy battery casing, comprising the following raw materials in parts by weight: 100 parts of polypropylene, 5 parts of niobium pentoxide, 6 parts of sodium tetrachloropalladium, 8 parts of modified chabazite powder, and 8 parts of modified lignin , 2 parts of xylitol;

[0025] The preparation method of the modified chabazite powder is as follows: crush the chabazite and sieve it with a 60-mesh sieve, wash it with water, and dry it to obtain a pretreated chabazite; use absolute ethanol and γ-(2,3-epoxypropylene Oxygen) propyltrimethoxysilane carries out epoxidation to pretreatment chabazite; Then add 200 parts of deionized water and 20 parts of lauryl amidopropyl betaine in reactor, stir; Carry out ultrasonic treatment 5min afterwards; Solid-liquid separation is carried out, and the separated solid is washed with deionized water until the filtrate becomes neutral; the solid is dried to obtain the modified chabazite powder.

[0026] The pre...

Embodiment 2

[0029] A special material for a new energy battery casing, comprising the following raw materials in parts by weight: 135 parts of polypropylene, 12 parts of niobium pentoxide, 15 parts of sodium tetrachloropalladium, 14 parts of modified chabazite powder, and 12 parts of modified lignin , 6 parts of xylitol;

[0030] The preparation method of the modified chabazite powder is as follows: crush the chabazite and sieve it with an 80-mesh sieve, wash with water, and dry to obtain a pretreated chabazite; use absolute ethanol and γ-(2,3-epoxypropylene Oxygen) propyltrimethoxysilane carries out epoxidation to pretreatment chabazite; Then add 300 parts of deionized water and 30 parts of lauryl amidopropyl betaine in reactor, stir; Carry out ultrasonic treatment 10min afterwards; Solid-liquid separation is carried out, and the separated solid is washed with deionized water until the filtrate becomes neutral; the solid is dried to obtain the modified chabazite powder.

[0031] The pre...

Embodiment 3

[0034] A special material for a new energy battery casing, comprising the following raw materials in parts by weight: 122 parts of polypropylene, 8 parts of niobium pentoxide, 10 parts of sodium tetrachloropalladium, 11 parts of modified chabazite powder, and 10 parts of modified lignin , 4 parts of xylitol.

[0035] The preparation method of the modified chabazite powder is as follows: crush the chabazite and sieve it with a 70-mesh sieve, wash it with water, and dry it to obtain a pretreated chabazite; use absolute ethanol and γ-(2,3-epoxypropylene Oxygen) propyltrimethoxysilane carries out epoxidation to pretreatment chabazite; Then in reactor, add 260 parts of deionized water and 25 parts of lauryl amidopropyl betaines, stir; Carry out ultrasonic treatment 7min afterwards; Solid-liquid separation is carried out, and the separated solid is washed with deionized water until the filtrate becomes neutral; the solid is dried to obtain the modified chabazite powder.

[0036] Th...

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Abstract

The invention discloses a special material for a new-energy battery shell and a preparation method thereof. The special material for the new-energy battery shell comprises the following raw materialsin parts by weight: 100-135 parts of polypropylene, 5-12 parts of niobium pentoxide, 6-15 parts of sodium tetrachloropalladate, 8-14 parts of modified chabazite powder, 8-12 parts of modified lignin and 2-6 parts of xylitol. The special material for the new-energy battery shell has excellent flame retardance, good mechanical properties, corrosion resistance and cold resistance, a high melt index and good fluidity and is easy to process.

Description

technical field [0001] The invention relates to the technical field of new energy batteries, in particular to a special material for a new energy battery casing and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a thermoplastic with light specific gravity, high surface hardness, high elasticity, good heat resistance, chemical stability, and good insulation. It is widely used in many fields of production and life. High-impact polypropylene material is also widely used in the manufacture of battery casings. However, polypropylene is extremely flammable, the limiting oxygen index is only 17.4-18.5, and the molten droplets are serious when burning, and it is easy to spread flames and cause fires, making its application unsafe. This limits the application of PP in industries such as electrical and electronic, communication equipment, automobiles, electrical appliances, and building materials. In order to meet the requirements of flame retardan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L97/00C08K13/06C08K9/06C08K7/26C08K3/22C08K5/053
CPCC08L23/12C08L2201/02C08L2203/20C08L97/00C08K13/06C08K9/06C08K7/26C08K3/22C08K5/053
Inventor 黄莹
Owner FOSHAN LINGXIN INFORMATION TECH CO LTD
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