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

Square lithium ion battery and production method

A lithium-ion battery, square technology, applied in the field of lithium-ion batteries, can solve the problems of volatilization, electrolyte heating and boiling, etc., and achieve the effect of strong operability of the manufacturing process and good sealing effect

Inactive Publication Date: 2018-05-01
HUNAN AIHUA GRP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the present invention, when the battery core is sealed in the casing, it is first sealed with light-curable glue (usually UV glue), and then sealed with heat-curable glue, which solves the problem of electrolyte evaporation due to heating and boiling. The problem

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
  • Square lithium ion battery and production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] Such as figure 1 A prismatic lithium-ion battery shown includes a battery core 1, a casing 2 and a sealing assembly; the sealing assembly seals the battery core 1 in the casing 2; the battery core 1 includes a positive electrode, a negative electrode, and a separator wound or folded into; the outer layer of the battery core 1 is covered with one or more layers of separators, and the separators covering the battery core 1 are bonded with transparent glue, so that the battery core 1 is oval; the positive and negative electrodes are coated with There are positive electrode material and negative electrode material, the positive electrode guide pin 3 and the negative electrode guide pin 4 are respectively connected to the positive electrode and the negative electrode, and the positive electrode guide pin 3 and the negative electrode guide pin 4 protrude from the casing; the sealing assembly includes a rubber plug 5 and a sealing cover 6 , the rubber plug 5 is provided with t...

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

No PUM Login to View More

Abstract

The invention discloses a square lithium ion battery. The square lithium ion battery comprises a battery core, a housing and a seal assembly, wherein the seal assembly is used for sealing the batterycore into the housing; the battery core is formed by winding or folding a positive electrode, a negative electrode and a membrane; the seal assembly comprises a rubber plug and a seal cover, through holes for a positive electrode guide pin and a negative electrode guide pin are formed in the rubber plug, and aluminum peduncles of the positive electrode guide pin and the negative electrode guide pin are extruded into the through holes by the rubber plug; penetrating holes for the positive electrode guide pin and the negative electrode guide pin are formed in the seal cover, a first seal step isarranged on each penetrating hole, and the positive electrode guide pin and the seal cover as well as the negative electrode guide pin and the seal cover are sealed through a photocuring adhesive inthe positions of the first seal steps; a second seal step is arranged on the outer side of each first seal step, and the positions of the second seal steps are filled and sealed through the photocuring adhesive. The square lithium ion battery disclosed by the invention is good in seal effect and high in workmanship operability.

Description

technical field [0001] The invention relates to a lithium ion battery, in particular to a square lithium ion battery and a production method. Background technique [0002] Traditional lithium-ion batteries generally use rubber plugs to seal the battery core in the casing. However, when the electrolyte is injected and baked, due to the boiling of the electrolyte, the gas may evaporate from the joint between the rubber plug and the guide pin. This leads to problems with the airtightness of the battery. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a square lithium-ion battery with good sealing effect and a production method. [0004] In order to solve the above technical problems, the technical solution proposed by the present invention is: a prismatic lithium ion battery, including a battery core, a casing and a sealing assembly; the sealing assembly seals the batt...

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
IPC IPC(8): H01M2/08H01M10/0587H01M10/0525H01M50/188
CPCH01M10/0525H01M10/0587H01M50/183Y02E60/10Y02P70/50
Inventor 艾亮夏商张超贾明
Owner HUNAN AIHUA GRP
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