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Power battery case inflaming retarding material based on PP material and preparation method thereof

A technology for power batteries and flame retardant materials, applied in the field of flame retardant materials, can solve problems such as hidden safety hazards, complex battery environment, poor thermal conductivity of plastic shells, etc. Effect

Inactive Publication Date: 2012-05-16
SHANGHAI HUARI ENTERPRISE DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the plastic case battery brings great convenience to battery capacity design and popularization and application, due to the relatively poor thermal conductivity of the plastic case, a certain amount of heat will be generated during the charging and discharging process. The environment is relatively complex
Although it will not lead to major problems with the safety of the battery, there are certain potential safety hazards after all.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0010] Use PP as the main base material; add 10%-30% glass fiber and 3%-6% flame retardant (antimony trioxide) during the injection molding process, stir evenly after melting, and then heat it at a temperature of 190°C According to the process, inject the evenly stirred mixture into the mold for processing.

specific Embodiment 2

[0011] Use PP as the main substrate; add 15% glass fiber and 4% flame retardant (antimony trioxide) during the injection molding process, stir evenly after melting, and then at a temperature of 200°C-220°C, according to the process Pour the evenly stirred mixture into a mold for processing.

specific Embodiment 3

[0012] Use PP as the main substrate; add 20% glass fiber and 4.5% flame retardant (antimony trioxide) during the injection molding process, stir evenly after melting, and then at a temperature of 180°C-200°C, according to the process Pour the evenly stirred mixture into a mold for processing.

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PUM

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Abstract

The invention discloses a power battery case inflaming retarding material based on the PP material and a preparation method thereof, wherein the material comprises the following components: PP material, 2-8% of fire retardant and 8-35% of glass fiber. The method is as follows: using PP as the main base material, and adding the 8-35% of glass fiber and the 2-8% of fire retardant during the injection molding process, and melting them and uniformly stirring them; injecting the uniformly stirred mixture into moulds to be processed and shaped at certain temperature. The power battery case inflaming retarding material based on the PP material disclosed by the invention only adds certain percentages of the glass fiber and the fire retardant into the material using PP as the base material and largely raises the plasticity and the compression strength of the case. In comparison with common PP materials, the inflaming retarding material disclosed by the invention does not burn easily in open fires such that it can effectively reduce occurrences of battery burning accidents.

Description

technical field [0001] The invention belongs to the technical field of flame retardant materials, and in particular relates to a flame retardant material for a power battery shell based on PP material and a preparation method thereof. Background technique [0002] At present, power batteries are mainly classified according to their shells, such as steel shells, aluminum shells, flexible packaging and plastic shells. Plastic case batteries are more suitable for large electric tools. The capacity of the battery can be designed according to the needs. The application prospect of the battery is very wide. Currently, it has great advantages in the application of battery cars and electric motorcycles. The starting point of the research is relatively late. At present, plastic cases with PP as the base material are mostly used in the market. Although the plastic case battery brings great convenience to battery capacity design and popularization and application, due to the relativel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K7/14C08K3/22
Inventor 傅理平张建龙
Owner SHANGHAI HUARI ENTERPRISE DEV