A kind of lithium battery explosion-proof gasket material and preparation method thereof

A lithium battery and gasket technology, which is applied in the field of lithium battery explosion-proof gasket materials and its preparation, can solve the problems of poor mechanical properties such as tensile strength and tear resistance, performance stability that needs to be further improved, oil resistance, and solvent resistance. To achieve the effect of excellent water repellency, low preparation cost and good comprehensive performance

Active Publication Date: 2021-12-07
深圳市增长点科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its mechanical properties such as tensile strength and tear resistance are poor, and its physical and mechanical properties are not as good as most synthetic rubbers at room temperature, and general silicone rubber has poor oil and solvent resistance, and its long-term performance stability needs to be further improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A lithium battery explosion-proof gasket material is characterized in that it is made of the following raw materials in parts by weight: 10 parts of fluorinated phosphazene rubber, 5 parts of polydiphenylsilaboroxane, and 80 parts of vinyl-terminated fluorosilicone rubber , 1 part of azobisisobutyronitrile, 0.5 parts of phosphorus pentoxide, 10 parts of vinyl modified thermally conductive fillers, 2 parts of silane coupling agent KH5502, 2-(2-[(3-ethyl-5-methyl- 2(3H)-Benzothiazolyl)methyl]-1-butenyl)-1-(3-sulfonic acid)naphtho[1,2-d]azole hydroxide inner salt 3 parts, 1,3 - 1 part of adamantanediol monoacrylate, 1 part of 1-allyl-2-(trifluoromethyl)-1H-benzo[D]imidazole.

[0032] The preparation method of the vinyl-modified thermally conductive filler comprises the following steps: adding the thermally conductive filler and vinyltriethoxysilane to ethanol, stirring and reacting at 30°C for 4 hours, and then rotary evaporating to remove the solvent to obtain vinyl Modi...

Embodiment 2

[0036] A lithium battery explosion-proof gasket material is characterized in that it is made of the following raw materials in parts by weight: 11 parts of fluorinated phosphazene rubber, 6 parts of polydiphenylsilaboroxane, and 85 parts of vinyl-terminated fluorosilicone rubber , 1.5 parts of azobisisoheptanonitrile, 0.7 parts of phosphorus pentoxide, 12 parts of vinyl modified thermally conductive fillers, 2.5 parts of silane coupling agent KH560, 2-(2-[(3-ethyl-5-methyl 4 parts of base-2(3H)-benzothiazolyl)methyl]-1-butenyl)-1-(3-sulfonic acid)naphtho[1,2-d]azole hydroxide inner salt, 1 , 1.5 parts of 3-adamantanediol monoacrylate, 1.5 parts of 1-allyl-2-(trifluoromethyl)-1H-benzo[D]imidazole.

[0037] The preparation method of the vinyl-modified thermally conductive filler includes the following steps: adding thermally conductive filler and bis(triethoxysilyl)ethylene into methanol, stirring and reacting at 35°C for 5 hours, and then rotary evaporating to remove the solven...

Embodiment 3

[0041] A lithium battery explosion-proof gasket material, characterized in that it is made of the following raw materials in parts by weight: 13 parts of fluorinated phosphazene rubber, 8 parts of polydiphenylsilaboroxane, and 90 parts of vinyl-terminated fluorosilicone rubber , 2 parts of azobisisobutyronitrile, 1 part of phosphorus pentoxide, 15 parts of vinyl modified thermally conductive filler, 3.5 parts of silane coupling agent KH570, 2-(2-[(3-ethyl-5-methyl 4.5 parts, 1 , 2 parts of 3-adamantanediol monoacrylate, 2 parts of 1-allyl-2-(trifluoromethyl)-1H-benzo[D]imidazole.

[0042] The preparation method of the vinyl-modified thermally conductive filler comprises the following steps: adding the thermally conductive filler and vinyltrimethoxysilane into ethylene glycol, stirring and reacting at 40°C for 5.5 hours, and then rotary evaporating to remove the solvent to obtain ethylene Base modified thermally conductive filler; the mass ratio of the thermally conductive fil...

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Abstract

The invention discloses a lithium battery explosion-proof gasket material, which is characterized in that it is made of the following raw materials in parts by weight: 10-15 parts of fluorinated phosphazene rubber, 5-10 parts of polydiphenylsilaboroxane, ethylene 80-100 parts of base-terminated fluorosilicone rubber, 1-3 parts of initiator, 0.5-1.5 parts of phosphorus pentoxide, 10-20 parts of vinyl modified thermally conductive filler, 2-5 parts of coupling agent, 2-(2 ‑[(3‑Ethyl‑5‑methyl‑2(3H)‑benzothiazolyl)methyl]‑1‑butenyl)‑1‑(3‑sulfonic acid)naphtho[1,2‑ d] 3-6 parts of azole hydroxide inner salt, 1-3 parts of 1,3-adamantanediol monoacrylate, 1-allyl-2-(trifluoromethyl)-1H-benzo[D] 1‑3 parts of imidazole. The invention also discloses a preparation method of the lithium battery explosion-proof gasket material. The lithium battery explosion-proof gasket material disclosed by the invention has good comprehensive performance and thermal conductivity, good flame retardant insulation effect, excellent mechanical properties such as tensile strength and tear resistance, high performance stability, and long service life.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a lithium battery explosion-proof gasket material and a preparation method thereof. Background technique [0002] With the rapid development of economy, human beings are facing severe challenges of energy crisis and environmental pollution. All countries in the world are constantly seeking cleaner and more environmentally friendly green energy. Among them, lithium batteries are widely used in mobile phones, portable computers, cameras, In the field of electronic products such as cameras, and the application field is still expanding, it has become the main choice of sustainable power batteries and is known as the ideal power supply in the 21st century. [0003] With the gradual development of new energy vehicles, lithium-ion batteries have gradually replaced gasoline as the power support for vehicles. However, the safety performance of lithium-ion batteries has greatly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/08C08L85/02C08L85/04C08K9/06C08K3/04C08K3/34C08K3/38C08K5/3447C08K11/00C08K13/08
CPCC08L83/08C08L2201/02C08L2201/08C08L2203/20C08L2205/03C08L85/02C08L85/04C08K9/06C08K3/04C08K3/34C08K3/38C08K5/3447C08K11/005C08K13/08
Inventor 陶健君
Owner 深圳市增长点科技有限公司
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