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

Preparation method of special-shaped battery

A kind of battery and special-shaped technology, which can be used in the manufacture of primary battery equipment, secondary battery manufacturing, primary battery, etc., and can solve the problems of low space utilization rate and so on.

Active Publication Date: 2021-11-16
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present application provides a preparation method of a special-shaped battery to solve the technical problem of low space utilization of the above-mentioned special-shaped battery after combining multiple batteries

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
  • Preparation method of special-shaped battery
  • Preparation method of special-shaped battery
  • Preparation method of special-shaped battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Preferred embodiments of the application are shown in the accompanying drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the application more thorough and comprehensive.

[0041] As used herein, "terminal equipment" refers to a device capable of receiving and / or sending communication signals, including but not limited to, connected via any one or several of the following connection methods:

[0042] (1) Connection via wired lines, such as public switched telephone network (Public Switched Telephone Networks, PSTN), digital subscriber line (Digital Subscriber Line, DSL), digital cable, direct cable connection...

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 present application relates to a preparation method of a special-shaped battery, comprising the following steps: providing a substrate unit, the substrate unit includes a positive electrode sheet, a negative electrode sheet and a diaphragm arranged in layers, a diaphragm is provided between the positive electrode sheet and the negative electrode sheet, and the substrate unit It has a first direction and a second direction perpendicular to each other. Cutting the substrate unit so that the substrate unit at least includes a first substrate and a second substrate, the first substrate and the second substrate are arranged along the first direction, and the first substrate and the second substrate are arranged in the second direction Dimensions above vary. And taking the second direction as the axis, winding the second substrate around the first substrate to form a cell. Winding the second substrate around the first substrate reduces the number of cuts in the cell manufacturing process, reduces the probability of burr generation, and thereby reduces the risk of internal short circuits in special-shaped batteries. The positive electrode sheet and the negative electrode sheet are continuous on the sides of both ends of the cell in the first direction, which improves space utilization, ensures energy density, increases capacitance, realizes morphological diversification, and improves production efficiency at the same time.

Description

technical field [0001] The present application relates to the technical field of batteries, in particular to a preparation method of special-shaped batteries. Background technique [0002] Existing special-shaped batteries are usually formed by combining multiple batteries, the space utilization rate is low, and multiple batteries make battery management more complicated. Contents of the invention [0003] The embodiment of the present application provides a preparation method of a special-shaped battery, so as to solve the technical problem of low space utilization rate of the above-mentioned special-shaped battery after combining multiple batteries. [0004] A method for preparing a special-shaped battery, comprising the steps of: [0005] A substrate unit is provided, and the substrate unit includes a positive electrode sheet, a negative electrode sheet and a separator stacked in layers, the separator is provided between the positive electrode sheet and the negative el...

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): H01M10/04H01M10/0587H01M6/00
CPCH01M6/005H01M10/0404H01M10/0587Y02E60/10Y02P70/50
Inventor 谢红斌张加亮
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD