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Lithium ion battery flame-retardant material for energy storage as well as preparation method and application thereof

A technology for lithium-ion batteries and flame-retardant materials, which is applied in the field of flame-retardant materials for lithium-ion batteries for energy storage and its preparation, can solve the problems of poor dispersion of flame retardants, poor dispersion of flame retardants, and poor flame retardant performance. Achieve stable product performance, good mixing and plasticizing ability, and stable mechanical properties

Pending Publication Date: 2020-03-24
XUJI GRP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention aims at the problem of poor dispersion of the flame retardant in the polypropylene matrix in the existing flame retardant polypropylene material, and provides a lithium ion battery flame retardant material for energy storage
[0008] Another object of the present invention is to provide a method for preparing a flame-retardant material for lithium-ion batteries for energy storage, so as to solve the problem of poor dispersion of the flame-retardant in the polypropylene matrix in the flame-retardant polypropylene material obtained by the existing preparation method
[0009] The third purpose of the present invention is to provide an application of flame-retardant materials for lithium-ion batteries for energy storage, to solve the problem of poor flame-retardant performance caused by poor dispersion of flame retardants in the matrix in existing flame-retardant materials

Method used

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  • Lithium ion battery flame-retardant material for energy storage as well as preparation method and application thereof

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Effect test

Embodiment 1

[0035] The flame-retardant material for lithium-ion batteries for energy storage in this embodiment is composed of polymeric phosphate, aluminum hydroxide, magnesium hydroxide, naphthenic oil, silane coupling agent A-174, polypropylene (model: t30s) by mass ratio 25:18:6:10:1.5:100 blended. The particle size of aluminum hydroxide is 5-10 μm, and the particle size of magnesium hydroxide is 5-10 μm.

Embodiment 2

[0037] The flame-retardant material for lithium-ion batteries for energy storage in this embodiment is composed of polymeric phosphate, aluminum hydroxide, magnesium hydroxide, naphthenic oil, silane coupling agent A-174, polypropylene (model: t30s) by mass ratio 10:30:15:5:3:100 blended. Among them, the particle size of aluminum hydroxide is 5-10 μm, and the particle size of magnesium hydroxide is 5-10 μm.

Embodiment 3

[0039] The flame-retardant material for lithium-ion batteries for energy storage in this embodiment is composed of polymeric phosphate, aluminum hydroxide, magnesium hydroxide, naphthenic oil, silane coupling agent A-174, polypropylene (model: t30s) by mass ratio 40:10:30:20:0.5:100 blended. Among them, the particle size of aluminum hydroxide is 5-10 μm, and the particle size of magnesium hydroxide is 5-10 μm.

[0040] Two, the specific embodiment of the preparation method of the halogen-free flame-retardant polypropylene material of the present invention

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Abstract

The invention belongs to the technical field of lithium ion battery flame-retardant materials, and particularly relates to a lithium ion battery flame-retardant material for energy storage and a preparation method and application thereof. The lithium ion battery flame-retardant material for energy storage is prepared by blending a composite flame retardant, naphthenic oil, a coupling agent and polypropylene, wherein the composite flame retardant is prepared from polyphosphate, aluminum hydroxide and magnesium hydroxide; wherein the mass ratio of the polymeric phosphate to the aluminum hydroxide to the magnesium hydroxide to the naphthenic oil to the coupling agent to the polypropylene is (10-40): (10-30): (6-30): (5-20): (0.5-3): (95-105). According to the flame-retardant polypropylene material, the naphthenic oil wraps the periphery of the flame retardant, the effects of improving compatibility and promoting dispersion are achieved in the blending process, the dispersion uniformity degree of the composite flame retardant in a polypropylene matrix is improved, and the problem that in an existing flame-retardant polypropylene material, the dispersity of the flame retardant in the polypropylene matrix is poor is solved.

Description

technical field [0001] The invention belongs to the technical field of flame-retardant materials for lithium-ion batteries, and in particular relates to a flame-retardant material for lithium-ion batteries for energy storage and its preparation method and application. Background technique [0002] The electrochemical energy storage industry has shown explosive growth in the past two years, and its application to energy storage power stations has made a huge contribution to my country's power grid. Energy storage power stations are currently used in a wide range of occasions, including the power generation side, the grid side, and the user side. The main functions include auxiliary frequency regulation, peak summer, and peak winter. The core of the electrochemical energy storage power station lies in the battery. At present, most electrochemical energy storage power stations use lithium-ion batteries, because lithium-ion batteries have high energy density, high voltage platfo...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L85/02C08L91/00C08K3/22C08K5/5425
CPCC08L23/12C08K2003/2227C08K2003/2224C08L2205/03C08L2201/02C08L2203/20C08L85/02C08L91/00C08K3/22C08K5/5425
Inventor 李肖辉汪书苹陈北海张振华陈干杰张佳庆张跃伟高飞王康康杨凯
Owner XUJI GRP
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