Power lithium battery protective housing and manufacturing process thereof

A lithium battery and protective shell technology, applied in the field of power lithium battery protective shells and their manufacturing processes, can solve the problems of difficult unification of standards, large differences in monomers, heavy shell quality, etc., and achieve light weight, strong plasticity, and improved performance Effect

Pending Publication Date: 2019-06-28
厦门晟硕科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The structure of the protective shell of the power lithium battery is mainly in three forms: cylinder, square and soft package. The internal components of the three power lithium batteries are not much different. They are all lithium batteries. The core difference is that the cylindrical and square batteries are mainly made of metal materials. The shell of the soft-packed lithium battery uses aluminum-plastic film as the package shell. The shell made of metal materials is generally heavy in quality, and the shell of the soft-packed lithium battery has a large difference in monomers, and the standard is difficult to unify and the mechanical strength is poor. The problem

Method used

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  • Power lithium battery protective housing and manufacturing process thereof
  • Power lithium battery protective housing and manufacturing process thereof
  • Power lithium battery protective housing and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like Figure 1-7 As shown, a power lithium battery protective case includes an aluminum box 1 and a cover 2. The middle position of the cover 2 is equally divided with a main electrode male plug 3 and a main electrode female plug 4, and the middle position of the side of the aluminum box 1 is equally divided. The secondary electrode male plug 5 and the secondary electrode female plug 6 are separately provided, the main electrode male plug 3 and the secondary electrode male plug 5 are electrically connected by wires, the main electrode female plug 4 and the secondary electrode female plug 6 are electrically connected by wires, and the The wire is embedded in the wire groove of the aluminum box 1, and the width of the wire groove is matched with the wire diameter of the wire. The outer shells of the main electrode male plug 3, the main electrode female plug 4, the secondary electrode male plug 5 and the secondary electrode female plug 6 are made of insulating material, an...

Embodiment 2

[0041] A manufacturing process of a power lithium battery protective case, characterized in that it comprises the following steps:

[0042] S1. Select the double-layer aluminum-plastic film to unwind, and punch a number of heat dissipation holes 8 on the mold;

[0043] S2, the upper mold, heat sealing and shaping, to form the aluminum-plastic film cavity 10;

[0044] S3, opening a small hole at one end of the aluminum-plastic film cavity 10, and heat-sealing it with the inflation port 12;

[0045] S4. According to the size of the aluminum-plastic film cavity 10, the aluminum plate with a thickness of 0.35mm is machined out of the aluminum box 1 and the cover 2;

[0046] S5, put the aluminum-plastic film cavity 10 into the aluminum box 1, pull out the inflation port 12 from the aluminum box 1, and fix it with the pressure ring 13;

[0047] S6. Fill the aluminum-plastic film cavity 10 with helium gas 14 through the inflation port 12, and the inflation pressure is 0.2 MPa, and ...

Embodiment 3

[0051] A manufacturing process of a power lithium battery protective case, characterized in that it comprises the following steps:

[0052] S1. Select the double-layer aluminum-plastic film to unwind, and punch a number of heat dissipation holes 8 on the mold;

[0053] S2, the upper mold, heat sealing and shaping, to form the aluminum-plastic film cavity 10;

[0054] S3, opening a small hole at one end of the aluminum-plastic film cavity 10, and heat-sealing it with the inflation port 12;

[0055] S4. The aluminum box 1 and the cover 2 are machined out of an aluminum plate with a thickness of 0.65 mm according to the size of the aluminum-plastic film cavity 10;

[0056] S5, put the aluminum-plastic film cavity 10 into the aluminum box 1, pull out the inflation port 12 from the aluminum box 1, and fix it with the pressure ring 13;

[0057] S6. Fill the aluminum-plastic film cavity 10 with helium gas 14 through the inflation port 12, and the inflation pressure is 0.35MPa, and ...

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Abstract

The invention provides a power lithium battery protective housing, and relates to the technical field of power lithium battery equipment. The protective housing comprises an aluminum box and a cover,a main electrode male plug and a main electrode female plug are arranged equally in the middle position of the cover, an auxiliary electrode male plug and an auxiliary electrode female plug are arranged equally in the middle position of the aluminum box, a space between the internal and external surfaces of the aluminum box serves as a plastic-aluminum film cavity, the aluminum box is uniformly provided with multiple radiating holes, and position where the plastic-aluminum film cavity makes contact with the back side of the aluminum box is provided with an inflation port, and the inflation port extends to the outer side of the aluminum box and fixed by a press ring. The main electrode male plug, main electrode female plug, auxiliary electrode male plug and auxiliary electrode female plug are arranged to meet requirements for different installation positions when lithium batteries are connected in series and expanded to form a lithium battery group, a plastic-aluminum housing is selected, the radiating holes are increased, the heat radiation capability of the lithium batteries can be improved, the plastic-aluminum material is low in weight and high in intensity and plasticity, and the protective housing of the plastic-aluminum material can improve the energy density of the power lithium battery.

Description

technical field [0001] The invention relates to the technical field of power lithium battery equipment, in particular to a power lithium battery protective case and a manufacturing process thereof. Background technique [0002] The power battery is the power source that provides the power source for the tool. It mostly refers to the battery that provides power for electric vehicles, electric trains, electric bicycles, and golf carts. It is mainly used for starting batteries for starting the engine of automobiles. Valve-sealed lead-acid batteries are mostly used. , open tubular lead-acid batteries and lithium iron phosphate batteries. [0003] Lithium battery is a new type of high-energy battery successfully developed in the 20th century. The negative electrode of this battery is metal lithium, and the positive electrode is MnO 2 , SOCL 2 , (CFx)n, etc., entered practical use in the 1970s. Because of its high energy, high battery voltage, wide operating temperature range,...

Claims

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Application Information

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IPC IPC(8): H01M2/10H01M2/20H01M10/613H01M10/625H01M10/655
CPCY02E60/10
Inventor 王廷康陈炜烽林涛
Owner 厦门晟硕科技有限公司
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