Flexible-package battery and preparation method thereof
A soft packaging battery and spacer technology, applied in battery pack parts, circuits, electrical components, etc., can solve problems such as explosion, battery short circuit, easy puncture, etc., to improve safety performance and prevent short circuit.
Active Publication Date: 2014-12-17
南通硬派锂电池有限公司
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Since the welding part of the tab is very sharp, the welding part is easy to pierce the diaphragm or the shell of the soft-packed battery, which will cause a short circuit of the battery, cause the battery to heat up and swell, or even explode
In order to avoid the short circuit of the battery, the common treatment method is to paste the adhesive tape on the welding part of the tab, but the adhesive tape and the tab are difficult to stick firmly
After soaking in the electrolyte for a long time, the tape will separate from the tab and lose its protective effect
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
[0036] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0037] Such as Figure 1 to Figure 6 As shown, the present invention provides a soft package battery, which includes a casing (not shown), positive tabs 2, negative tabs 3 and at least two winding cores 1 accommodated in the casing, each of which The winding core 1 is provided with a positive terminal 4 and a negative terminal 5, all the positive terminals 4 are welded to the positive tab 2 to form a first welding position 6, and all the negative terminals 5 are welded to the negative tab. 3 are welded together to form a second welding position 7, wherein the soft package battery also includes a first spacer 8 and a second spacer 11, and the first spacer 8 is l...
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
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a flexible-package battery and a preparation method thereof. The flexible-package battery comprises a housing, an anode tab (2), a cathode tab (3), and at least two coiled cores (1) contained in the housing. Each coiled core (1) is provided with an anode outlet terminal (4) and a cathode outlet terminal (5). All anode outlet terminals (4) are welded with the anode tab (2), such that a first welded section (6) is formed. All cathode outlet terminals (5) are welded with the cathode tab (3), such that a second welded section (7) is formed. The flexible-package battery also comprises a first separating ring (8) and a second separating ring (11). The first separating ring (8) is positioned between the two welded sections and the coiled cores (1). The second separating ring (11) is positioned between the two welded sections and the housing. The flexible-package battery provided by the invention assists in preventing battery short circuit. With the flexible-package battery, the safety performance of the battery is improved.
Description
technical field [0001] The invention relates to the field of batteries, in particular to a soft package battery and a preparation method thereof. Background technique [0002] Since the shell of the soft-packed battery is a relatively soft aluminum-plastic composite film, compared with the traditional metal shell battery, the soft-packed battery has the advantages of being easy to process and adapting to the production of different types of batteries. In addition, the metal casing of traditional batteries is usually formed by welding, so there are many safety hazards in traditional batteries. The shell of the soft-packed battery is formed by hot pressing, so the soft-packed battery is safer. Due to the above advantages, flexible packaging batteries have been more and more widely used. [0003] Since it is very difficult to manufacture a battery with too long pole pieces, and the performance is difficult to guarantee, in order to obtain a large-capacity battery, the battery...
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): H01M2/14H01M2/34
CPCY02E60/10
Inventor 胡念朱小明梁世硕
Owner 南通硬派锂电池有限公司