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

A kind of preparation method of electric core structure and electric core structure

A cell and one-sided technology, applied to structural parts, battery electrodes, non-aqueous electrolyte storage batteries, etc., can solve the problems of restricting battery capacity and battery power, reducing the utilization rate of internal space of the battery, and being unable to participate in electrochemical reactions, etc. Effects of loss, cost reduction, and increase in reaction area

Active Publication Date: 2022-04-08
武汉昊诚锂电科技股份有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, unlike lithium-ion batteries, lithium-manganese flexible packaging batteries use soft and easily deformable metal lithium as the negative electrode. Therefore, a wound-type battery manufacturing process is required, which greatly restricts battery capacity. And the power of the battery, and the battery core with the winding structure has the problem that the material of the outermost ring of the winding body cannot participate in the electrochemical reaction. This phenomenon will cause two adverse consequences, one is the loss of active materials; Utilization of the internal space of the battery, resulting in an increase in the thickness of the battery

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 electric core structure and electric core structure
  • A kind of preparation method of electric core structure and electric core structure
  • A kind of preparation method of electric core structure and electric core structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, 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 the parts related to the present invention are shown in the drawings but not all of them.

[0043] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the conve...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a cell structure and the cell structure, which belong to the technical field of batteries. The method for preparing the cell structure includes S1, coating a positive electrode slurry on one side of a current collector and drying it to form Positive electrode sheet; S2, wrapping the diaphragm outside the positive electrode sheet; S3, cutting the negative electrode sheet with the same width as the positive electrode sheet and less than the preset length of the positive electrode sheet; S4, folding the positive electrode sheet and separator in half so that the length of the positive electrode sheet Halved, and the coating surface of the positive electrode sheet is set inwardly, and the coating surface is the side that the positive electrode sheet is coated with the positive electrode slurry; S5, insert the negative electrode sheet between the two layers of diaphragms that are in contact, so that the negative electrode sheet and the positive electrode sheet There is a diaphragm between the coated surfaces of the coating, and then an assembly is obtained; S6, the assembly is bent to obtain a cell structure. The preparation method of the cell structure and the cell structure provided by the invention can reduce the loss of active materials and have a high space utilization rate.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a method for preparing a cell structure and the cell structure. Background technique [0002] Lithium-manganese flexible packaging batteries have the advantages of customization, portability and high energy density, and are widely used in the field of electronic equipment. [0003] In the prior art, unlike lithium-ion batteries, lithium-manganese flexible packaging batteries use soft and easily deformable metal lithium as the negative electrode. Therefore, a wound-type battery manufacturing process is required, which greatly restricts battery capacity. And the power of the battery, and the battery core with the winding structure has the problem that the material in the outermost ring of the winding body cannot participate in the electrochemical reaction. This phenomenon will cause two adverse consequences, one is the loss of active materials; The utilization of the internal sp...

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): H01M10/0583H01M10/052H01M4/139H01M4/13
CPCH01M10/0583H01M10/052H01M4/139H01M4/13Y02E60/10Y02P70/50
Inventor 周敬于力阮红林
Owner 武汉昊诚锂电科技股份有限公司
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