A kind of preparation method and battery of flexible packaging polymer lithium ion battery
A lithium-ion battery and polymer technology, applied in the field of lithium-ion batteries, can solve the problems of high moisture content of lithium-ion batteries, performance degradation of lithium-ion batteries, etc., and achieve the effect of improving electrical performance and cycle life
Active Publication Date: 2021-12-07
SHENZHEN EPT BATTERY
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to provide a method for preparing a soft-packed polymer lithium-ion battery and the battery, to solve the technical problem that the lithium-ion battery obtained by the existing preparation method has a high internal moisture content, which leads to a rapid decline in the performance of the lithium-ion 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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] In order to enable those skilled in the art to better understand the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described implementation Examples are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the embodiments of the present invention.
[0032] It should be noted that the terms "first" and "second" in the description and claims of the embodiments of the present invention and the above drawings are used to distinguish similar objects, but not necessarily to describe a specific order or sequence order. It is to be understood that the data so used are i...
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
Login to View More Abstract
The invention discloses a method for preparing a soft-packed polymer lithium-ion battery, which comprises the following steps: obtaining an aluminum-plastic film, one side of the aluminum-plastic film wraps the main body of the cell battery box, and the other side is an air bag, and the air bag is The bag is connected to the main body of the battery box; the water-absorbing unit is put into the air bag of the top-side sealed battery cell and vacuum baked; after the electrolyte is injected into the main body of the battery box, the battery is first packaged and formed in sequence ; Remove the air bag and the water-absorbing unit and perform a second package; obtain a soft-packed polymer lithium-ion battery. The invention also discloses a battery prepared by the above preparation method. The battery preparation method disclosed in the invention can greatly improve the performance of the lithium ion battery.
Description
technical field [0001] The invention relates to the technical field of lithium-ion batteries, in particular to a preparation method of a soft-package polymer lithium-ion battery and the battery. Background technique [0002] At present, polymer soft-packaged lithium-ion batteries have penetrated into all aspects of people's daily life due to their variable models and good safety performance. In addition to the improvement of battery materials and manufacturing processes, the battery structure is also being further optimized. [0003] Moisture has a crucial impact on the performance of lithium-ion batteries. The amount of moisture inside the lithium-ion battery determines the performance of the battery. These moisture will directly affect the various electrical properties of the battery in the later stage. [0004] Therefore, it is necessary to propose a method for effectively reducing the internal moisture of the lithium-ion battery, completely removing or maintaining the i...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/058H01M10/0525H01M10/04
CPCH01M10/0404H01M10/0525H01M10/058H01M50/60Y02E60/10Y02P70/50
Inventor 杨晓亮王守军刘新华余海导余育强
Owner SHENZHEN EPT BATTERY