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Method for preparing phosphorylation-modified composite high-toughness storage battery case

A storage battery and high toughness technology, which is applied to the surface coating liquid device, anti-corrosion coating, fire-proof coating, etc. It can solve the problems such as the internal stress of the plastic shell is not completely eliminated, collision, beating, falling, battery sealing adhesive failure, etc. , to achieve the effect of alleviating the failure of sealing adhesive joints, promoting plasticization, and high practical value

Inactive Publication Date: 2018-07-17
四会市启德信息咨询服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are a large number of batteries in daily life to promote a large demand for battery cases, but sometimes there will be collisions, falls, and drops during the production, handling, and use of the case; this will cause the battery case to rupture to a certain extent , if the battery case cover is in the injection molding process, the temperature of a certain process is not well controlled or the internal stress of the plastic case is not completely eliminated, which will also increase the possibility of weak cracks in the case, often after a period of use Micro-cracks appear, causing micro-leakage of electrolyte
If the glue is used improperly when the glue joint of the battery pole is sealed, or due to external force shock or temperature shock, the seal glue joint of the battery will also fail.

Method used

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Effect test

Embodiment 1

[0032] A method for preparing a phosphorylation-modified composite high-toughness battery case;

[0033] The technical problem to be solved by the present invention adopts the following technical solutions to realize:

[0034] A method for preparing a phosphorylated modified composite high-toughness battery case,

[0035] The preparation method of the phosphorylation-modified composite high-toughness battery case comprises the following steps:

[0036] (1) Take the above-mentioned sodium hypophosphite monohydrate, add it to deionized water 50 times its weight, stir evenly, send it into a constant temperature water bath at 76°C, slowly add the above-mentioned paraformaldehyde, and add the above-mentioned 35% hydrochloric acid under stirring condition , insulated and stirred for 8 hours under the protection of nitrogen, cooled the discharged material, filtered with suction, and vacuum-dried the precipitate at 80°C for 10 hours to obtain hydroxyalkylated phosphinic acid;

[003...

Embodiment 2

[0054] A phosphorylation-modified composite high-toughness battery case and a preparation method thereof;

[0055] The technical problem to be solved by the present invention adopts the following technical solutions to realize:

[0056] A phosphorylation-modified composite high-toughness battery casing and a preparation method thereof, comprising the following steps:

[0057] (1) Take the above-mentioned sodium hypophosphite monohydrate, add it to deionized water 50 times its weight, stir evenly, send it into a constant temperature water bath at 80°C, slowly add the above-mentioned paraformaldehyde, and add the above-mentioned 36% hydrochloric acid under stirring condition , insulated and stirred for 8 hours under the protection of nitrogen, cooled the discharged material, filtered with suction, and vacuum-dried the precipitate at 85°C for 10 hours to obtain hydroxyalkylated phosphinic acid;

[0058] (2) adding the above-mentioned hydroxyalkylated phosphinic acid into THF whi...

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PUM

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Abstract

The invention discloses a method for preparing a phosphorylation-modified composite high-toughness storage battery case. The method comprises the following steps: (1) preparing a primary storage battery case; and (2) spraying the surface of the prepared primary storage battery case with a coating; the prepared phosphorylation-modified composite high-toughness storage battery case has heat resistance, toughness, weather resistance, high temperature resistance, acid and alkali resistance, oil resistance, halogenated hydrocarbon corrosion and strong hydrolysis resistance; and the preparation process is environmentally friendly, the equipment is simple, the operation is simple, and the preparation cost is low. The storage battery case is applied to storage battery liquid equipment, has high practical value, can alleviate the failure of the sealing glue joint of storage batteries due to external force impact or temperature shock, and can avoid the liquid leakage problems due to cracks of the storage battery case caused by various reasons in the production process.

Description

Technical field: [0001] The invention relates to the field of battery casings, in particular to a method for preparing a phosphorylated modified composite high-toughness battery casing. Background technique: [0002] The battery is mainly composed of positive plate group, negative plate group, separator, shell and electrolyte. [0003] Among them, the shell is used to hold the electrolyte and support the plate, and there are usually four kinds of glass shells, lead-lined wooden shells, hard rubber shells and plastic shells. The casing is used to contain the electrolyte and the plate group, and should be acid-resistant, heat-resistant, and shock-resistant. The shell is mostly made of hard rubber or polypropylene plastic, which is an integral structure, and there are raised ribs at the bottom to place the plate group. The inside of the shell is divided into 3 or 6 cells that are not connected to each other by the partition wall, and the cells are connected in series with lea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L25/06C08L15/00C08L79/08C08K13/04C08K7/00C08K3/34C08K5/52C08K3/26C08K5/17C08K5/5317C08J7/04C09D123/06C09D7/61C09D5/08B05D7/02B05D1/06B05D1/12
CPCC08L9/00B05D1/06B05D1/12B05D7/02C08J7/042C08J2309/00C08J2423/06C08J2463/00C08K3/04C08K2003/265C08L2201/08C08L2203/20C08L2205/035C09D5/08C09D5/18C09D123/06C08L25/06C08L15/00C08L79/08C08K13/04C08K7/00C08K3/346C08K5/52C08K3/26C08K5/17C08K5/5317
Inventor 曾伟平
Owner 四会市启德信息咨询服务有限公司
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