# US 2015/0104698 A1 · Aluminum film packaging materials used for lithium batteries

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- Number: US 2015/0104698 A1
- Document ID: US20150104698A1
- Status: Published application
- Kind: A1
- Application number: 14/505,713
- Filed: 2014-10-03
- Published: 2015-04-16
- Earliest claimed: 2013-10-11
- Assignees: Nan Ya Plastics Corporation
- Applicants: Nan Ya Plastics Corporation
- Inventors: Dein-Run FUNG; Ying-Te HUANG; Chao-Hsien LIN; Ching-Yao YUAN; Teng-Ko MA
- Web page: https://patentgrep.com/patent/US20150104698A1

## CPC

- H01M 50/124: having a layered structure
- H01M 50/119: Metals
- H01M 50/121: Organic material
- H01M 50/129: with two or more layers of only organic material
- H01M 50/133: Thickness
- H01M 50/145: for protecting against corrosion
- H01M 10/052: Li-accumulators
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A method for lithium aluminum film packaging materials, with water, high temperature and corrosion resistance, the substrate layer, and then layer, aluminum foil layer, anti-corrosion layer, adhesive layer and the inner layer together constitute from the outermost to innermost layer laminate structure in which one side of the aluminum foil layer, or both side surface of the conductive coating material to said coating and curing anticorrosive layer, and the use of fluorine-containing polyurethane resin constituting the laminated rubber layer and the inner layer of corrosion between the adhesive layer, used lithium batteries as plastic film packaging applications, it can promote lithium battery with Merit water resistance, high temperature resistance and corrosion resistance, and enhance the use of lithium batteries in years.

## Claims

### Claim 1

An aluminum plastic film packaging material used for a lithium battery at least comprising
a substrate layer provided with a capability of heat resistance, and formed from a nylon film or a polyester film having a thickness of ranging between 10 μm and 50 μm;
an aluminum foil layer bonded to the substrate layer, provided with a capability of hydrofluoric acid resistance, and formed from a soft aluminum foil containing 0.1-5 wt % of iron element and 0.1-5 wt % of silicon element and having a foil thickness of ranging between 30 μm and 100 μm;
an innermost layer provided with a capability of heat seal for use in contact with electrolytes of a lithium battery, and formed from a polyolefin-based polymer film having a thickness of ranging between 10 μm and 60 μm;
wherein the improvement comprises:
an anti-corrosive layer coated onto one side of the aluminum foil layer, and formed from a conductive coating having a thickness of ranging between 10 nm and 500 nm ; and
an adhesive layer coated as an interleaved layer between the anti-corrosive layer and the innermost layer, and formed from a fluorine-containing polyurethane bonding adhesive comprising:
a) 65-92 wt % polyol composition;
b) 0.5-8.0 wt % hydroxyl-containing modified fluorocarbon resins; and
c) 5-30 wt % epoxy resin; each by weight of the fluorine-containing polyurethane adhesive.

### Claim 2 (depends on 1)

The aluminum plastic film packaging material as claimed in claim 1, wherein the fluorine-containing polyurethane bonding adhesive comprising:
a) 65-92 wt % polyol composition;
b) 0.5-4.5 wt % hydroxyl-containing modified fluorocarbon resins; and
c) 5-15 wt % epoxy resin; each by weight of the fluorine-containing polyurethane adhesive.

### Claim 3 (depends on 1)

The aluminum plastic film packaging material as claimed in claim 1, wherein the hydroxyl-containing modified fluorocarbon resin has a chemical structure as follows:
(CFX—CYZ)m—(CH2—CHOH)n
Where, F is fluorine; X, Y, Z is a halogen or hydrogen (H); and m, n is a positive integer greater than zero.

### Claim 4 (depends on 2)

The aluminum plastic film packaging material as claimed in claim 2, wherein the hydroxyl-containing modified fluorocarbon resin has a chemical structure as follows:
(CFX—CYZ)m—(CH2—CHOH)n
Where, F is fluorine; X, Y, Z is a halogen or hydrogen (H); and m, n is a positive integer greater than zero.

### Claim 5 (depends on 3)

The aluminum plastic film packaging material as claimed in claim 3, wherein the fluorine-containing polyurethane bonding adhesive is contained of polyol composition having 8 to 36 carbon atoms and selected from the group consisting of polyester polyol, polyether polyol, polycarbonate polyol, acrylic polyol, olefin opolyol and any combination thereof.

### Claim 6 (depends on 4)

The aluminum plastic film packaging material as claimed in claim 4, wherein the fluorine-containing polyurethane bonding adhesive is contained of polyol composition having 8 to 36 carbon atoms and selected from the group consisting of polyester polyol, polyether polyol, polycarbonate polyol, acrylic polyol, olefin opolyol and any combination thereof.

### Claim 7 (depends on 5)

The aluminum plastic film packaging material as claimed in claim 5, wherein the fluorine-containing polyurethane bonding adhesive is contained of the hydroxyl-containing modified fluorocarbon resin having OH value of between 30 mgKOH/g and 100 mgKOH/g.

### Claim 8 (depends on 6)

The aluminum plastic film packaging material as claimed in claim 6, wherein the fluorine-containing polyurethane bonding adhesive is contained of the hydroxyl-containing modified fluorocarbon resin having OH value of between 30 mgKOH/g and 100 mgKOH/g.

### Claim 9 (depends on 7)

The aluminum plastic film packaging material as claimed in claim 7, wherein the fluorine-containing polyurethane bonding adhesive is contained of polyether polyol with a molecular weight of from about 15,000 to 35,000.

### Claim 10 (depends on 8)

The aluminum plastic film packaging material as claimed in claim 8, wherein the fluorine-containing polyurethane bonding adhesive is contained of polyether polyol with a molecular weight of from about 15,000 to 35,000.

### Claim 11 (depends on 9)

The aluminum plastic film packaging material as claimed in claim 9, wherein the polyether polyol is a fluorine-containing polyurethane polyol.

### Claim 12 (depends on 10)

The aluminum plastic film packaging material as claimed in claim 10, wherein the polyether polyol is a fluorine-containing polyurethane polyol.

### Claim 13 (depends on 7)

The aluminum plastic film packaging material as claimed in claim 7, wherein the fluorine-containing polyurethane bonding adhesive is contained of the epoxy resin selected from the group consisting of bisphenol A epoxy resin, bisphenol F epoxy resin, butadiene epoxy resin, phenol-formaldehyde novolac epoxy resin, phenol biphenyl-fonnaldehyde novolac epoxy resin, phenol p-xylene formaldehyde novolac epoxy resin, phenol biphenylene formaldehyde novolac epoxy resin, phenol dicyclopentadiene formaldehyde novolac epoxy resin, benzaldehyde novolac epoxy resin, biphenyl-formaldehyde novolac epoxy resin, naphthalene-formaldehyde novolac epoxy resin, BPA phenol novolac epoxy resin, resorcinol ring novolac epoxy resin and any combinations thereof.

### Claim 14 (depends on 8)

The aluminum plastic film packaging material as claimed in claim 8, wherein the fluorine-containing polyurethane bonding adhesive is contained of the epoxy resin selected from the group consisting of bisphenol A epoxy resin, bisphenol F epoxy resin, butadiene epoxy resin, phenol-formaldehyde novolac epoxy resin, phenol biphenyl-fonnaldehyde novolac epoxy resin, phenol p-xylene formaldehyde novolac epoxy resin, phenol biphenylene formaldehyde novolac epoxy resin, phenol dicyclopentadiene formaldehyde novolac epoxy resin, benzaldehyde novolac epoxy resin, biphenyl-formaldehyde novolac epoxy resin, naphthalene-formaldehyde novolac epoxy resin, BPA phenol novolac epoxy resin, resorcinol ring novolac epoxy resin and any combinations thereof.

### Claim 15 (depends on 5)

The aluminum plastic film packaging material as claimed in claim 5, wherein the conductive coating of said anti-corrosive layer is selected from the group consisting of polyaniline, polypyrrole, polythiophene and any combination thereof.

### Claim 16 (depends on 6)

The aluminum plastic film packaging material as claimed in claim 6, wherein the conductive coating of said anti-corrosive layer is selected from the group consisting of polyaniline, polypyrrole, polythiophene and any combination thereof.
