Unlock instant, AI-driven research and patent intelligence for your innovation.

Packaging film for high-buffer lithium battery

A lithium battery and packaging film technology, applied in the field of high-buffer lithium battery packaging film, can solve the problems of reduced packaging performance, damage, and bubbling of soft packaging films, so as to reduce tension, improve tensile strength, and reduce damage The effect of the probability of

Pending Publication Date: 2020-07-17
CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Bubbles will occur in the flexible packaging film after long-term use, which will attract the attention of users and deal with it in time to improve the safety of use. damaged, which degrades package performance

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A packaging film for high-buffer lithium batteries, comprising an outer composite protective layer, a first adhesive layer, an aluminum foil layer, a second adhesive layer, an inner composite protective layer, a third adhesive layer and a heat-sealing layer, the outer composite The protective layer includes a nylon layer and a first foam layer, the nylon layer and the first foam layer are connected by a first adhesive, and the contact surface between the first foam layer and the nylon layer is concave-convex, including several concave and convex Groove and regular polygonal pyramid protruding, described groove and regular polygonal pyramid protrusion are arranged at intervals, groove and regular polygonal pyramid are equidistantly arranged, and the distance between groove and adjacent regular polygonal pyramid is 1cm, the depth of groove and regular polygonal pyramid The heights of the pyramids are equal in size, the upper surface of the aluminum foil layer is coated wit...

Embodiment 2

[0029] A packaging film for high-buffer lithium batteries, comprising an outer composite protective layer, a first adhesive layer, an aluminum foil layer, a second adhesive layer, an inner composite protective layer, a third adhesive layer and a heat-sealing layer, the outer composite The protective layer includes a nylon layer and a first foam layer, the nylon layer and the first foam layer are connected by a first adhesive, and the contact surface between the first foam layer and the nylon layer is concave-convex, including several concave and convex Groove and regular polygonal pyramid protruding, described groove and regular polygonal pyramid protrusion are arranged at intervals, groove and regular polygonal pyramid equidistant arrangement, the distance between groove and adjacent regular polygonal pyramid is 1.2cm, the depth of groove and regular polygonal pyramid The heights of the polygonal pyramids are equal in size, the upper surface of the aluminum foil layer is coate...

Embodiment 3

[0031] A packaging film for high-buffer lithium batteries, comprising an outer composite protective layer, a first adhesive layer, an aluminum foil layer, a second adhesive layer, an inner composite protective layer, a third adhesive layer and a heat-sealing layer, the outer composite The protective layer includes a nylon layer and a first foam layer, the nylon layer and the first foam layer are connected by a first adhesive, and the contact surface between the first foam layer and the nylon layer is concave-convex, including several concave and convex Groove and regular polygonal pyramid protruding, described groove and regular polygonal pyramid protrusion are arranged at intervals, groove and regular polygonal pyramid equidistant arrangement, the distance between groove and adjacent regular polygonal pyramid is 1.5cm, the depth of groove and regular polygonal pyramid The heights of the polygonal pyramids are equal in size, the upper surface of the aluminum foil layer is coate...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of battery packaging films. The invention relates to a packaging film, in particular to a high-buffer packaging film for lithium batteries. The aluminum foil comprises an outer composite protective layer, a first bonding layer, an aluminum foil layer, a second bonding layer, an inner composite protective layer, a third bonding layer and a heat sealing layer, wherein the outer composite protective layer comprises a nylon layer and a first foaming layer; the nylon layer is connected with the first foaming layer through a first adhesive; the upper surface of the aluminum foil layer is coated with a corrosion-resistant layer; and the inner composite protective layer comprises a second foaming layer and a carbon fiber layer filled in the second foaming layer; the first foaming layer and the second foaming layer are arranged on the two sides of the aluminum foil layer correspondingly; the second foaming layer is filled with the carbon fiber layer,so that the tensile strength of the second foaming layer can be improved; the impact resistance and the tensile strength of the packaging film are improved; the probability that the packaging film isdamaged in the production process is reduced; and the use safety is improved.

Description

technical field [0001] The invention relates to the technical field of battery packaging films, in particular to a packaging film for high-buffer lithium batteries. Background technique [0002] The packaging material and structure of the pouch battery have a series of advantages. For example, the safety performance is good. The structure of the pouch battery is packaged with aluminum-plastic film. When a safety problem occurs, the pouch battery will generally explode and burst without Explosion occurs like a steel case or an aluminum case cell; light weight, the weight of the pouch battery is 40% lighter than the steel case lithium battery of the same capacity, and 20% lighter than the aluminum case lithium battery; the internal resistance is small, the internal resistance of the pouch battery Smaller than lithium batteries, it can greatly reduce the self-consumption of batteries; good cycle performance, longer cycle life of pouch batteries, 100 cycle attenuation is 4% to 7...

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
IPC IPC(8): H01M2/02H01M10/052B32B7/12B32B15/20B32B27/34B32B33/00B32B5/18B32B1/06B32B3/30B32B27/32H01M50/124
CPCH01M10/052B32B7/12B32B15/20B32B27/34B32B33/00B32B5/18B32B3/30B32B27/32H01M50/124B32B1/00Y02E60/10
Inventor 吕松
Owner CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL