Unlock instant, AI-driven research and patent intelligence for your innovation.

Integrated battery with bionic deformation structure and preparation method thereof

A technology of deformed structure and single battery, applied in the direction of electrolyte battery manufacturing, structural parts, secondary batteries, etc., can solve the problems of battery performance degradation, shortened life, battery performance attenuation, etc., to achieve high capacity and battery performance, realize energy Output, the effect of prolonging the service life

Pending Publication Date: 2022-05-13
CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is that the flexible battery in the prior art cannot work under various deformation states (bending, twisting and stretching); the battery is relatively thin, and the low active material content makes it impossible to provide higher capacity, battery performance is reduced; long-term repeated deformation (bending, twisting and stretching) will cause battery performance attenuation or failure, and it is easy to shorten the life of the problem. A bionic deformation structure integrated battery and its preparation method are provided. By referring to the natural According to the external shape or internal physiological structure and movement mode of animals and plants, the integrated battery design is carried out to make it have a certain strength, rigidity and stability structure, with high capacity and battery performance, prolong the service life of the battery, and achieve high energy output

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
  • Integrated battery with bionic deformation structure and preparation method thereof
  • Integrated battery with bionic deformation structure and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Please see attached figure 1 , the bionic deformation structure integrated battery mainly refers to the outer skin structure of molluscs, such as fish scales, each scale is oval, and the whole is composed of 4 rows and 8 columns of oval single cells. The battery is realized by lamination or winding. The connection between the monomers is realized by a flexible hinge, which is composed of double-sided polyimide and copper foil (PI / Cu / PI);

[0036] The flexible hinge adopts a rectangular shape;

[0037] 1 / 4 superposition is achieved between monomers;

[0038] The 8 cells in each row are connected in parallel to increase the battery capacity, and the voltage can be increased through series connection between every two rows, or parallel connection can be used.

Embodiment 2

[0040] Please see attached figure 2 , the bionic deformation structure integrated battery mainly refers to the outer skin structure of molluscs, such as snake scales, each scale is hexagonal, and the whole is composed of 4 rows and 7 columns of hexagons. The connection between the bodies is realized by a flexible hinge, and the composition of the flexible hinge is TPU / Ag / TPU;

[0041] The shape of the flexible hinge adopts a parallelogram;

[0042] 1 / 3 superposition between monomer and monomer;

[0043] Seven cells in each row are connected in series to increase the voltage, and four cells in each row are connected in parallel to increase battery capacity, or in series.

[0044] Advantage and beneficial effect that the present invention produces are:

[0045]1. A biomimetic deformation structure integrated battery and its preparation method designed by the present invention, by referring to the external shape or internal physiological structure and movement mode of animals...

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 provides a bionic deformation structure integrated battery and a preparation method thereof. The problem that an existing flexible battery cannot work in various deformation states (bending, twisting and stretching) is solved; the battery is thin, and relatively high capacity cannot be provided due to relatively low active substance content, so that the performance of the battery is reduced; in order to solve the problems of battery performance degradation or failure and extremely easy service life shortening caused by long-term repeated deformation (bending, twisting and stretching) in the prior art, the invention provides an integrated battery with a bionic deformation structure and a preparation method thereof, and the integrated battery is designed by referring to external forms or internal physiological structures and motion modes of animals and plants in nature. The battery has a certain strength, rigidity and stability structure, has high capacity and battery performance, prolongs the service life of the battery, and realizes high-energy output.

Description

technical field [0001] The invention belongs to the technical field of power batteries, and in particular relates to an integrated battery with a bionic deformation structure and a preparation method thereof. Background technique [0002] Lithium-ion batteries (LIB) have a wide range of application markets and attractiveness in various electronic equipment power supplies, smart fields, and military fields due to their high energy density and repeated cycle use. The composition of a lithium-ion battery mainly includes a cell, an electrolyte, and a casing, and the cell mainly includes a positive electrode sheet, a separator, and a negative electrode sheet. For lithium batteries with high energy density, the battery cell is mainly made of multi-layer positive and negative electrodes. When the thickness exceeds a certain thickness, the battery cell cannot be flexible and foldable. At present, the research on flexible batteries is mainly focused on the shell, which is made into ...

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): H01M10/0525H01M10/058H01M50/102H01M50/258H01M50/503H01M50/514H01M50/526
CPCH01M10/0525H01M10/058H01M50/102H01M50/258H01M50/503H01M50/514H01M50/526Y02P70/50
Inventor 纪伟伟高鹏孟占昆
Owner CHINA ELECTRONIC TECH GRP CORP NO 18 RES INST