Soft package battery and preparation method thereof
A soft-pack battery and cell technology, applied in batteries, battery pack components, battery boxes/jackets, etc., can solve problems such as explosions and fires in soft-pack batteries, and reduce heat release, thermal runaway and even explosion. Danger, the effect of reducing short-circuit current
Inactive Publication Date: 2019-08-30
GREE ELECTRIC APPLIANCES INC
View PDF6 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Compared with aluminum shell batteries, pouch batteries are safer, but pouch batteries also have a higher probability of fire or even explosion
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
[0030] 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. Apparently, the described embodiments 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 creative efforts fall within the protection scope of the present invention.
[0031] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rathe...
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 relates to a soft package battery and a preparation method thereof. The soft package battery comprises: a first package member formed with a first sealing cavity; a second package memberformed with a second sealing cavity and arranged in the first sealing cavity, wherein a third sealing cavity is formed between the second package member and the first package member; a battery cell arranged in the second sealing cavity; an electrolyte arranged in the second sealing cavity; and insulation liquid arranged in the third sealing cavity. Two layers of package members are arranged at the periphery of the battery cell, and a protection region filled with the insulation liquid is arranged between the two layers of package members; after the internal portion of the soft package batteryis in short circuit, the package members at the inner side are damaged, the insulation liquid of the protection region flows into the battery cell to sharply increase the internal resistance and greatly reduce the short-circuit current, the reaction of the battery cell can be blocked from the internal portion of the soft package battery, the heat discharge of the soft package battery is reduced,the risk of generation of thermal runaway and even explosion of the soft package battery can be reduced, and the potential safety hazard is reduced.
Description
technical field [0001] The invention relates to the field of batteries, in particular to a soft pack battery and a preparation method thereof. Background technique [0002] In recent years, due to the obvious performance advantages in safety, energy density, cycle life and other aspects, pouch batteries have become more and more favored by enterprises. Compared with aluminum case batteries, pouch batteries are safer, but pouch batteries also have a higher probability of fire or even explosion. Contents of the invention [0003] One of the objectives of the present invention is to provide a pouch battery and its preparation method, so as to alleviate the problem of the high probability of explosion of the pouch battery. [0004] Some embodiments of the present invention provide a pouch battery, which includes: [0005] The first package is formed with a first sealed cavity; [0006] The second package is formed with a second sealed cavity, and the second package is arran...
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 IPC IPC(8): H01M2/02H01M2/36H01M50/116H01M50/124H01M50/60
CPCH01M2200/00H01M50/124H01M50/116H01M50/60Y02E60/10
Inventor 李影谷建行钟宽邹十美杨玉兵曾梦丝李雪云
Owner GREE ELECTRIC APPLIANCES INC