A lithium battery production process and equipment

A production process and production equipment technology, applied in the field of lithium battery production and processing, can solve the problems of high internal resistance of cells and low process production efficiency, and achieve the effects of reducing labor intensity, improving battery production efficiency, and simple and efficient process implementation.

Active Publication Date: 2022-07-12
BEIJING WELION NEW ENERGY TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the winding battery production process is to fix the central battery and then wind the pole piece and separator together to form a battery assembly. This method is mostly used in the production and processing of cylindrical batteries, but this production process will lead to The internal resistance is high, and it is only suitable for the production of smaller battery models; the production process of laminated batteries is to pre-cut the pole pieces and separators into the same specification, and then stack them sequentially from bottom to top, and weld the tabs. Finally, it is packaged to form battery components. This process is commonly used in the production and processing of prismatic batteries. However, due to the periodic pauses in the operation of the stacking mechanism in this way, the overall process production efficiency is low.

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 lithium battery production process and equipment
  • A lithium battery production process and equipment
  • A lithium battery production process and equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The core of the present invention is to provide a lithium battery production process, which can easily and efficiently realize the continuous production and processing of lithium batteries; in addition, it also provides a lithium battery production equipment for the above-mentioned lithium battery production process.

[0034] In order to make those skilled in the art better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Please refer to figure 1 , figure 1 A flow chart of a lithium battery production process provided by a specific embodiment of the present invention.

[0036] In a specific embodiment, the lithium battery production process provided by the present invention includes:

[0037] Step S1: pre-compounding;

[0038] The positive electrode sheet 21 , the separator 23 , the negative electrode sheet 22 , and the separ...

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 production process for a lithium battery. Through the steps of pre-compounding, stacking and winding, cutting, reclaiming, continuous processing and finished product assembly performed in sequence, each pole piece and a separator are stacked, processed and formed, and finally assembled. For battery pre-products, the lithium battery production process is simple and efficient, which can realize the continuous production and manufacture of lithium battery products, greatly improve the battery production efficiency, and can simplify the entire process flow and reduce the labor intensity of staff accordingly. The invention also discloses a lithium battery production equipment used in the above-mentioned lithium battery production process.

Description

technical field [0001] The invention relates to the technical field of lithium battery production and processing, in particular to a lithium battery production process. The present invention also relates to a lithium battery production equipment used in the above-mentioned lithium battery production process. Background technique [0002] In the current production and processing process of lithium batteries, the cells of lithium batteries need to be arranged in sequence with positive pole pieces, separators, and negative pole pieces. Among them, the winding battery production process is to fix the central battery and then wind the pole piece and the separator together to form a battery assembly. This method is mostly used in the production and processing of cylindrical batteries, but this production process will lead to battery cells. The internal resistance is high, and it is only suitable for the production of small-sized battery models; the production process of laminated...

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): H01M10/0583H01M10/04
CPCH01M10/0583H01M10/0409H01M10/0431Y02E60/10Y02P70/50H01M10/0404H01M10/04H01M6/10H01M10/0587H01M10/0585H01M10/058H01M10/052
Inventor 李文俊刘云皓侯宝鹏俞会根李永伟
Owner BEIJING WELION NEW ENERGY TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products