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Laminated battery cell production process, laminated battery cell production system and laminated battery cell

A production system and production process technology, applied in the direction of electrochemical generators, electrode collector coatings, non-aqueous electrolyte batteries, etc., can solve problems such as battery energy density limitations, safety hazards, thermal runaway, etc., and reduce battery weight , Improve safety, improve energy density

Pending Publication Date: 2021-06-22
GEESUN AUTOMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, most lithium ions are liquid lithium batteries, that is, the electrolyte is in a liquid state, which limits the energy density of the battery. At the same time, there are large safety hazards, which may easily cause thermal runaway and even explode.

Method used

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  • Laminated battery cell production process, laminated battery cell production system and laminated battery cell
  • Laminated battery cell production process, laminated battery cell production system and laminated battery cell
  • Laminated battery cell production process, laminated battery cell production system and laminated battery cell

Examples

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Effect test

no. 1 example

[0054] Please refer to figure 1 , this embodiment provides a production process for laminated batteries, which mainly includes the following steps:

[0055] S1: providing a positive electrode current collector 101 and a negative electrode current collector 201 respectively. It can be understood that the positive electrode current collector 101 is the basic material for making the positive electrode sheet, including but not limited to aluminum foil; the negative electrode current collector 201 is the basic material for making the negative electrode sheet, including but not limited to copper foil.

[0056] S2: forming a positive electrode active layer 102 on at least one surface of the positive electrode current collector 101 . Optionally, the positive electrode current collector 101 includes two opposite surfaces, which can be divided into an opposite inner surface and an outer surface according to the division of the later lamination process. Wherein, the positive electrode ...

no. 2 example

[0082] Please refer to Figure 5 , the embodiment of the present invention provides a laminated cell production system 100, including a first discharge device 11, a second discharge device 51, a first positive active coating device 13, a first negative active coating device 53, an electrolyte A coating device 20 , a thermocompression lamination device 16 , a cutting device 17 and a laminating device 18 . The first discharging device 11 and the first positive active coating device 13 are arranged successively, the second discharging device 51 and the first negative active coating device 53 are arranged successively, the first positive active coating device 13 and the first negative active coating At least one of the cloth devices 53 is followed by an electrolyte coating device 20 , and the electrolyte coating device 20 is followed by a thermocompression lamination device 16 , a cutting device 17 and a lamination device 18 in sequence. Wherein, the first discharging device 11 i...

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Abstract

The invention provides a laminated battery cell production process, a laminated battery cell production system and a laminated battery cell, and relates to the technical field of battery manufacturing. In the production process of the laminated cell, a positive active layer is formed on a positive current collector, a negative active layer is formed on a negative current collector, and a first solid electrolyte layer is formed on at least one of the positive active layer and the negative active layer; a second solid-state electrolyte layer is formed on one side, far away from the first solid-state electrolyte layer, of at least one to obtain a positive plate and a negative plate; the positive plate and the negative plate are pressed into a composite unit through a hot-pressing composite process, then the composite unit is cut into lamination units, and finally the lamination units are stacked into the lamination cell. The process is high in production efficiency, the manufactured laminated battery cell is better in safety, and the production efficiency and the use safety of the lithium battery can be improved.

Description

technical field [0001] The invention relates to the technical field of battery manufacturing, in particular, to a production process for laminated batteries, a production system for laminated batteries and a laminated battery. Background technique [0002] Lithium battery has the characteristics of high energy density, small self-discharge, no memory effect, wide working voltage range, long life, and no environmental pollution. direction. However, at present, most lithium ions are liquid lithium batteries, that is, the electrolyte is in a liquid state, which limits the energy density of the battery. At the same time, there are great safety hazards, which may easily cause thermal runaway and even explode. [0003] However, solid-state batteries can solve these problems very well. How to realize the industrialization of solid-state batteries in the current technology is a problem that must be faced in this field. Solid-state batteries should be based on the existing lithium b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/04H01M4/04H01M10/0562H01M10/0565H01M10/058
CPCH01M10/0413H01M10/0404H01M4/0404H01M10/0562H01M10/0565H01M10/058H01M2300/0065Y02P70/50Y02E60/10
Inventor 黄持伟吴学科阳如坤魏宏生
Owner GEESUN AUTOMATION TECH
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