Thermosetting plastic and its preparation method and power lithium battery pack assembly casing prepared from thermosetting plastic

A manufacturing method and thermosetting technology, applied in battery pack parts, circuits, electrical components, etc., can solve problems such as unfavorable lightweight development of vehicles, heavy metal box body, damaged battery cells, etc., and achieve instant control of danger and weight. The effect of lightening and reducing accident losses

Inactive Publication Date: 2017-08-22
MILIKUDO GLASS FIBER REINFORCED PLASTIC TAIZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the event of a battery accident, the metal case will easily cause the arc to stray and damage the battery cells in other positions when the battery is short-circuited to generate spark discharge, resulting in a chain reaction of battery failure, leading to further expansion of the accident, resulting in serious accidents. security incident
In addition, the weight of the metal box is heavy, which is not conducive to the general trend of vehicle lightweight development

Method used

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  • Thermosetting plastic and its preparation method and power lithium battery pack assembly casing prepared from thermosetting plastic
  • Thermosetting plastic and its preparation method and power lithium battery pack assembly casing prepared from thermosetting plastic
  • Thermosetting plastic and its preparation method and power lithium battery pack assembly casing prepared from thermosetting plastic

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1, the weight ratio formula of thermosetting plastic is as follows:

[0036]

[0037]

Embodiment 2

[0038] Embodiment 2, the weight ratio formula of thermosetting plastics is as follows:

[0039]

[0040] A method for manufacturing a thermosetting plastic, comprising the steps of:

[0041] (1) Weigh the matrix resin, fillers, reinforcing fibers and additives according to the proportion of the formula, and put them into a high-speed disperser to disperse evenly;

[0042] (2) Put the above-mentioned matrix resin, filler, reinforcing fiber and auxiliary agent into a mixer and mix at high speed, then knead with a kneader, and then perform impregnation treatment to obtain a thermosetting plastic mixture;

[0043] (3) Under the specified temperature and pressure conditions, the above-mentioned thermosetting plastic mixture is solidified and formed in the mold of the product, and the shape of the product is fixed while the mixture is solidified.

[0044] The auxiliary agent in the step (1) includes a catalyst, a release agent and a flame retardant, first mix the composition of ...

Embodiment 1

[0048] Embodiment one, such as figure 1 As shown, the assembly box body is composed of the first unit box 2, the second unit box 3 and the third unit box 4 connected to each other in the horizontal direction, and the three unit boxes are of different sizes. Each single box forms an integral structure by injection molding, and the wall thickness of the single box is 2-5 mm.

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Abstract

The invention relates to thermosetting plastic and its preparation method and a power lithium battery pack assembly casing prepared from the thermosetting plastic. The thermosetting plastic comprises a base, fillers, a reinforcing material and aids. The base is prepared from thermosetting resins such as unsaturated polyester resin and vinyl ester resin. The fillers are inorganic non-metallic fillers such as wollastonite and barite. The preparation method comprises (1), dispersion, (2) stirring mixing, kneading and dipping, and (3) curing molding. The assembly casing comprises two or more single boxes connected with each other. The single box forms an integral structure through injection molding. The boxes are provided with connection holes or connection tabs connected to a vehicle frame. The main characteristics of the thermosetting plastic comprise that 1, a thermal deformation temperature is more than 250 DEG C higher than that of the reaction temperature of the lithium compound, 2, the thermosetting plastic is flame retardant, resists a high temperature and does not collapse after burning, 3, the spark discharge caused by battery short circuit is effective resisted, 4, insulation and thermal conductivity are obtained and a battery design is convenient, and 5, weight is light, electrombile weight reduction is promoted and noise is reduced.

Description

technical field [0001] The invention relates to the technical field of thermosetting plastics and power lithium battery packs, in particular to a high-temperature-resistant thermosetting plastic and a manufacturing method thereof, and a power lithium battery pack assembly box for electric vehicles made of the thermosetting plastics. Background technique [0002] At present, all kinds of electric vehicles as new energy vehicles are developing rapidly. The core component of electric vehicles, the power lithium battery pack, has a variety of installation forms. When lithium batteries are assembled on electric vehicles, they are usually connected and assembled through the assembly box and the frame. , the existing assembly box is generally made of metal materials. Under the normal working condition of the electric vehicle, the metal box works normally. However, in the event of a battery accident, the metal case will easily cause the arc to stray and damage the battery cells in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08L67/00C08L31/08C08L63/00C08L61/06C08L77/10C08L23/06C08K3/00C08K3/34C08K3/30C08K3/26C08K3/22C08K3/28C08K13/04C08K7/14C08K7/10C08K7/06H01M2/10H01M50/20
CPCC08L23/06C08L31/08C08L61/06C08L63/00C08L67/00C08L67/06C08L77/10C08L2201/08C08L2203/20C08L2201/02C08L2205/035C08L2205/03C08L2205/16C08K2201/014H01M50/20C08K3/00C08K3/34C08K2003/3045C08K2003/265C08K2003/2227C08K2003/2224C08K3/346C08K2003/2296C08K2003/282C08K13/04C08K7/14C08K7/10C08K7/06Y02E60/10
Inventor 王学军胡志荣
Owner MILIKUDO GLASS FIBER REINFORCED PLASTIC TAIZHOU
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