Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Battery and manufacturing method thereof

A technology for batteries and battery cells, which is applied in secondary batteries, battery pack parts, final product manufacturing, etc. It can solve problems such as piercing by sharp substances, low mechanical strength, and potential safety hazards, and achieve simplified processing, low manufacturing costs, and good operational effect

Inactive Publication Date: 2010-11-03
SHENZHEN BAK BATTERY CO LTD
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aluminum-plastic composite film is generally made of PP and aluminum foil through multi-layer compounding. Its mechanical strength is low, and it is easy to be pierced by sharp substances during manufacturing and use, resulting in scrapping or scratching, resulting in safety hazards.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Battery and manufacturing method thereof
  • Battery and manufacturing method thereof
  • Battery and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Step 101, such as image 3 , Figure 4 and Figure 5 As shown, a battery unit 3 with a positive terminal 4 and a negative terminal (set in parallel with the positive terminal, not shown) is prepared, and an aluminum plate with a thin plate structure of a certain size is cut as the substrate 1 and has a thin plate structure. The aluminum-plastic composite film (also called aluminum-plastic composite film) of the layered structure composite board of the structure is used as the layered structure composite board 2;

[0054] Step 102, such as Figure 6 , Figure 7 As shown, the substrate 1 is punched to form a cavity 5 and a peripheral edge 6 that can accommodate the battery unit 3, and then the laminated structure composite plate 2 is punched to form a second cavity 7;

[0055] Step 103, such as Figure 7As shown, the battery unit 3 is placed into the cavity 5, so that the positive terminal 4 and the negative terminal protrude from the peripheral edge 6; 4 and the ne...

Embodiment 2

[0063] Example 2: This example is basically the same as Example 1, except that the compounding temperature in step 103 is 120°C.

[0064] The processed battery was tested for shell connection peel strength, and the test results are shown in Table 5.

[0065] Sample No.

[0066] Sample No.

[0067] table 5

Embodiment 3

[0068] Example 3: This example is basically the same as Example 1, except that the compounding temperature in step 103 is 140°C. The processed battery was tested for shell connection peel strength, and the test results are shown in Table 6.

[0069] Sample No.

[0070] Table 6

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a battery, comprising a shell and a battery cell which is sealed in the shell and is provided with an anode end and a cathode end, wherein the shell comprises a substrate and a composite plate; the substrate is a flat plate and the composite plate has C-shaped section; the composite plate is connected with the periphery of the substrate to form a closed cavity; and the battery cell is positioned in the closed cavity. The invention also discloses a manufacturing method of the battery. By using the metal substrate as one part of the shell, the battery has the high explosion-proof safety performance of soft package batteries and simultaneously improves the mechanical strength of the shell so that the shell of the battery is not easily punctured, thus greatly improving the mechanical safety of the battery during use and manufacture, and the substrate is processed to be provided with a cavity containing the battery cell, thus simplifying the process and saving the cost.

Description

technical field [0001] The invention relates to a soft package battery, and also relates to a manufacturing method of the soft package battery. Background technique [0002] In a lithium-ion battery, in addition to the positive and negative electrodes, electrolyte and separator paper, the casing that stores the various reaction components of the lithium-ion battery is also a very important component. As an effective component, in addition to providing the storage function, the casing will also provide the electrode extraction function for the lithium-ion battery, and at the same time provide certain help for the safety of the lithium-ion battery. [0003] At present, the materials used for the battery case mainly include: stainless steel, nickel-plated steel, aluminum alloy, and aluminum-plastic film. The aluminum-plastic film is soft, so the battery using the aluminum-plastic film as the casing is also a soft-packed battery, which has attracted much attention because of it...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/36H01M10/40H01M2/02H01M10/38H01M50/102H01M50/105H01M50/119H01M50/121H01M50/124H01M50/55H01M50/553
CPCH01M2/0267H01M2/0207H01M2/021H01M2/0277H01M2/0275H01M2/0285Y02E60/10Y02P70/50H01M50/105H01M50/121H01M50/124H01M50/55H01M50/553H01M50/119
Inventor 王伟强王春光任灿陈保同刘铭
Owner SHENZHEN BAK BATTERY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com