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

A kind of preparation method of bipolar electrode, laminated battery and laminated battery

A bipolar electrode and battery technology, which is applied in electrode manufacturing, primary battery, secondary battery manufacturing, etc., can solve the problem of reducing the energy density of laminated batteries, reducing the service life of laminated batteries, and failure of laminated batteries, etc. problem, achieve the effect of avoiding micro-short circuit, good high-current discharge characteristics, and reducing processing cost

Active Publication Date: 2022-05-20
深圳市睿赛新能源科技有限公司 +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, on the one hand, the arrangement of the tabs occupies the positions of the positive and negative electrodes, which reduces the energy density of the stacked battery; high, and it is easy to cause the stacked battery to fail due to the tab falling off, reducing the service life of the stacked battery. Therefore, there is an urgent need for a bipolar electrode, a stacked battery and a preparation method for the stacked battery to solve The above technical issues

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
  • A kind of preparation method of bipolar electrode, laminated battery and laminated battery
  • A kind of preparation method of bipolar electrode, laminated battery and laminated battery
  • A kind of preparation method of bipolar electrode, laminated battery and laminated battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all of them.

[0055] Some orientation words are limited in the present invention, and under the situation of not making contrary description, the orientation words used are as " upper ", " lower ", " left ", " right ", " inner ", " outer " these orientation words It is adopted for easy understanding, and thus does not constitute a limitation to the protection scope of the present invention.

[0056]In the present invention, unless otherwise clearly specified and limited, a first feature being "on...

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 relates to a bipolar electrode, a laminated battery and a method for preparing a laminated battery. The bipolar electrode includes a flexible conductive base material, an insulating strip and an insulating layer, and the flexible conductive base material has a first surface opposite to the other. and the second surface, the first surface and the second surface both include a positive electrode area, a bending area and a negative electrode area arranged in sequence, the positive electrode area is coated with a positive electrode active material, and the negative electrode area is coated with a negative electrode active material; the positive electrode on the first surface The region is opposite to the positive electrode region on the second surface, the negative electrode region on the first surface is opposite to the negative electrode region on the second surface; the bending region on the first surface is opposite to the bending region on the second surface; the bending region can be bent to The flexible conductive substrate is bent from the unfolded state to the half-folded state, and the half-folded state is that the positive electrode area and the negative electrode area are facing each other; the insulating strip is arranged in the bending area; the insulating layer is sandwiched between the positive electrode active material and the negative electrode active material. The bipolar electrode can have simple processing technology, low processing cost, and improve the energy density and service life of the laminated battery.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a bipolar electrode, a stacked battery and a preparation method for the stacked battery. Background technique [0002] In the prior art, a stacked battery includes a separator, a positive electrode sheet and a negative electrode sheet. The positive electrode sheet and the negative electrode sheet are stacked alternately. The separator is arranged between the positive electrode sheet and the negative electrode sheet to form a battery cell with the positive electrode sheet and the negative electrode sheet. Both the positive electrode sheet and the negative electrode sheet need to be connected with tabs, and two adjacent tabs are connected to realize the series connection of the battery cells. [0003] However, on the one hand, the arrangement of the tabs occupies the positions of the positive and negative electrodes, which reduces the energy density of the stacked battery; high,...

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 Patents(China)
IPC IPC(8): H01M4/70H01M4/02H01M4/04H01M6/00H01M10/04
CPCH01M4/70H01M4/02H01M4/04H01M6/00H01M10/045Y02P70/50Y02E60/10
Inventor 朱希平兰丽菊
Owner 深圳市睿赛新能源科技有限公司
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