Method for preparing corrosion-resistant encapsulating material for lithium battery

A packaging material and corrosion-resistant technology, which is applied in the field of preparation of corrosion-resistant packaging materials for lithium batteries, can solve problems such as poor corrosion resistance, and achieve the effects of improving corrosion resistance, improving corrosion resistance, and improving corrosion resistance

Inactive Publication Date: 2018-11-16
合肥仁德电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the corrosion resistance of lithium battery packaging materials is not very good, and further improvement is still needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of a corrosion-resistant packaging material for a lithium battery of the present embodiment comprises the following steps:

[0026] Step 1, prepare the active fluorocarbon resin prepolymer: add ethanol to the magnetic stirrer, then add the fluorocarbon resin, start the magnetic stirrer, the stirring temperature is 85°C, the stirring speed is 115r / min, and the stirring time is 15min. Then add graphene oxide, non-ionic surfactant, continue to stir for 25 minutes, then add silane coupling agent KH560, nano-silica microsphere emulsion, N-methylpyrrolidone, increase the speed to 155r / min, continue to stir for 15 minutes, Then cool to room temperature, ultrasonically disperse the reaction liquid, then centrifuge twice, then perform suction filtration, and dry the filter residue to obtain an active fluorocarbon resin prepolymer, which is ready for use;

[0027] Step 2: Add the active fluorocarbon resin prepolymer and epoxy resin prepared in Step 1 to the m...

Embodiment 2

[0035] A preparation method of a corrosion-resistant packaging material for a lithium battery of the present embodiment comprises the following steps:

[0036] Step 1, prepare the active fluorocarbon resin prepolymer: add ethanol to the magnetic stirrer, then add the fluorocarbon resin, start the magnetic stirrer, the stirring temperature is 95°C, the stirring speed is 125r / min, and the stirring time is 25min. Then add graphene oxide, non-ionic surfactant, continue to stir for 25-35min, then add silane coupling agent KH560, nano-silica microsphere emulsion, N-methylpyrrolidone, increase the speed to 175r / min, continue to stir 25min, then cooled to room temperature, ultrasonically dispersed the reaction solution, then centrifuged, centrifuged 3 times, then suction filtered, and the filter residue was dried to obtain an active fluorocarbon resin prepolymer, which was set aside;

[0037] Step 2: Add the active fluorocarbon resin prepolymer and epoxy resin prepared in Step 1 to th...

Embodiment 3

[0045] A preparation method of a corrosion-resistant packaging material for a lithium battery of the present embodiment comprises the following steps:

[0046] Step 1, prepare the active fluorocarbon resin prepolymer: add ethanol to the magnetic stirrer, then add the fluorocarbon resin, start the magnetic stirrer, the stirring temperature is 90°C, the stirring speed is 120r / min, and the stirring time is 20min. Then add graphene oxide, nonionic surfactant, continue to stir for 30min, then add silane coupling agent KH560, nano-silica microsphere emulsion, N-methylpyrrolidone, the rotating speed rises to 160r / min, continue to stir for 15- 25min, then cooled to room temperature, ultrasonically dispersed the reaction solution, then centrifuged, centrifuged 3 times, then suction filtered, and the filter residue was dried to obtain an active fluorocarbon resin prepolymer, which was set aside;

[0047]Step 2: Add the active fluorocarbon resin prepolymer and epoxy resin prepared in Ste...

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PUM

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Abstract

The invention discloses a method for preparing a corrosion-resistant encapsulating material for a lithium battery. The method comprises the following steps: (1) preparing an activated fluorocarbon resin prepolymer: adding ethanol into a magnetic stirrer, then, adding fluorocarbon resin, starting up the magnetic stirrer, carrying out stirring for 15 to 25 minutes at a stirring temperature of 85 DEGC to 95 DEG C at a stirring revolution rate of 115r / min to 125r / min, then, adding graphene oxide and a nonionic surfactant, and continuing to carry out stirring for 25 to 35 minutes. According to themethod for preparing the corrosion-resistant encapsulating material for the lithium battery, disclosed by the invention, the operation is simple, and the corrosion resistance of the encapsulating material can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of packaging material preparation, in particular to a method for preparing a corrosion-resistant packaging material for lithium batteries. Background technique [0002] A lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. It is different from a rechargeable battery. Lithium-ion batteries are different from lithium-ion polymer batteries. The inventor of lithium batteries is Edison. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. Therefore, lithium batteries have not been used for a long time. With the development of microelectronics technology at the end of the 20th century, miniaturized equipment is increasingly The increase has put forward high requirements for power supply, and lithium batteries ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/16C08L63/00C08K13/06C08K9/06C08K3/04C08K3/36C08K9/04C08K3/32
CPCC08K2003/328C08K2201/011C08L27/16C08L63/00C08L2203/206C08K13/06C08K9/06C08K3/042C08K3/36C08K9/04C08K3/32
Inventor 李阳
Owner 合肥仁德电子科技有限公司
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