# US 10,121,995 B2 · Battery packaging material

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- Number: US 10,121,995 B2
- Document ID: US10121995B2
- Status: Granted
- Kind: B2
- Application number: 15/512,402
- Filed: 2015-09-25
- Published: 2017-09-21
- Granted: 2018-11-06
- Earliest claimed: 2014-09-26
- Assignees: Dai Nippon Printing Co., Ltd.
- Applicants: Dai Nippon Printing Co., Ltd.
- Inventors: Yaichiro Hori; Shunsuke Ueda; Makoto Amano
- Web page: https://patentgrep.com/patent/US10121995B2

## CPC

- H01M 50/124: having a layered structure
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 15/06: of {natural rubber or synthetic} rubber
- B32B 15/08: of synthetic resin
- B32B 15/082: comprising vinyl resins; comprising acrylic resins
- B32B 15/085: comprising polyolefins
- B32B 15/088: comprising polyamides
- B32B 15/09: comprising polyesters
- B32B 15/092: comprising epoxy resins
- B32B 15/095: comprising polyurethanes
- B32B 15/098: comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
- B32B 15/18: comprising iron or steel {(B32B15/011, B32B15/012 and B32B15/013 take precedence)}
- B32B 15/20: comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)}
- B32B 23/042: {of metal}
- B32B 23/08: of synthetic resin
- B32B 25/04: comprising rubber as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a layer of a particular substance B32B9/043; next to a bituminous or tarry layer B32B11/044; next to a water setting substance layer B32B13/042; next to a metal layer B32B15/06; next to a glass layer B32B17/063; next to a layer formed of natural mineral fibres or particles B32B19/043; next to a wood layer B32B21/045; next to a cellulosic plastic layer B32B23/046)}
- B32B 25/08: of synthetic resin
- B32B 25/14: comprising {synthetic rubber copolymers (B32B25/18 and B32B25/20 take precedence)}
- B32B 25/16: comprising polydienes {homopolymers} or poly-halodienes {homopolymers (B32B25/12 takes precedence)}
- B32B 27/06: as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a layer of a particular substance B32B9/045; next to a bituminous or tarry layer B32B11/046; next to a water setting substance layer B32B13/12; next to a metal layer B32B15/08; next to a glass layer B32B17/10; next to a layer formed of natural mineral fibres or particles B32B19/045; next to a wood layer B32B21/08; next to a cellulosic plastic layer B32B23/08; next to a natural or synthetic rubber layer B32B25/08)}
- B32B 27/08: of synthetic resin
- B32B 27/16: specially treated, e.g. irradiated
- B32B 27/28: comprising synthetic resins not wholly covered by any one of the sub-groups {B32B27/30 - B32B27/42}
- B32B 27/281: {comprising polyimides}
- B32B 27/283: {comprising polysiloxanes}
- B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers}
- B32B 27/308: {comprising acrylic (co)polymers}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- B32B 27/325: {comprising polycycloolefins}
- B32B 27/34: comprising polyamides
- B32B 27/36: comprising polyesters
- B32B 27/365: {comprising polycarbonates}
- B32B 27/38: comprising epoxy resins
- B32B 27/40: comprising polyurethanes
- B32B 27/42: comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
- H01G 11/78: Cases; Housings; Encapsulations; Mountings
- 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 50/184: characterised by their shape or structure
- H01M 50/186: characterised by the disposition of the sealing members
- H01M 50/193: Organic material
- B32B 2250/03: 3 layers
- B32B 2255/06: on metal layer
- B32B 2255/10: on synthetic resin layer or on natural or synthetic rubber layer
- B32B 2255/20: Inorganic coating
- B32B 2255/205: Metallic coating
- B32B 2255/24: Organic non-macromolecular coating
- B32B 2255/26: Polymeric coating
- B32B 2270/00: Resin or rubber layer containing a blend of at least two different polymers
- B32B 2307/206: Insulating
- B32B 2307/31: Heat sealable
- B32B 2307/50: having particular mechanical properties
- B32B 2307/546: Flexural strength; Flexion stiffness
- B32B 2307/584: Scratch resistance
- B32B 2307/71: Resistive to light or to UV
- B32B 2307/714: Inert, i.e. inert to chemical degradation, corrosion
- B32B 2307/7244: Oxygen barrier
- B32B 2307/7246: Water vapor barrier
- B32B 2307/732: Dimensional properties
- B32B 2457/10: Batteries
- B32B 2457/16: Capacitors
- B32B 2553/00: Packaging equipment or accessories not otherwise provided for
- Y02E 60/10: Energy storage using batteries
- Y02E 60/13: Energy storage using capacitors
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

Provided is a battery packaging material that comprises a laminated body formed by sequentially stacking at least a base layer, a metal layer, and a sealant layer, and that has a thin overall thickness, and has excellent formability and piercing strength. This battery packaging material comprises a laminated body formed by sequentially stacking at least a base layer, a metal layer, and a sealant layer, with the overall thickness of the laminated body being 50-80 μm, and the ratio of the sum of the thicknesses of the base layer and the metal layer with respect to the overall thickness of the laminated body being in a range of 0.380-0.630.

## Claims

### Claim 1

A battery packaging material comprising a laminate having at least a base material layer, a metal layer and a sealant layer laminated in this order, wherein
the base material layer comprises at least one of a polyester resin or a polyamide resin,
a total thickness of the laminate is in a range of 50 to 80 μm, and
a ratio of a sum of thicknesses of the base material layer and the metal layer to a total thickness of the laminate is in a range of 0.380 to 0.630.

### Claim 2 (depends on 1)

The battery packaging material according to claim 1, wherein a ratio of a thickness of the sealant layer to the total thickness of the laminate is in a range of 0.300 to 0.570.

### Claim 3 (depends on 1)

The battery packaging material according to claim 1, wherein
the thickness of the base material layer is in a range of 9 to 25 μm,
the thickness of the metal layer is in a range of 15 to 30 μm, and
the thickness of the sealant layer is in a range of 22 to 35 μm.

### Claim 4 (depends on 1)

The battery packaging material according to claim 1, wherein the base material layer is a biaxially stretched nylon film or a biaxially stretched PET film.

### Claim 5 (depends on 1)

The battery packaging material according to claim 1, wherein the metal layer is formed of aluminum foil.

### Claim 6 (depends on 1)

A battery comprising a battery element including at least a positive electrode, a negative electrode and an electrolyte, the battery element being stored in the battery packaging material according to claim 1.

### Claim 7

A method for producing a battery, the method comprising:
a step of storing in a battery packaging material a battery element including at least a positive electrode, a negative electrode and an electrolyte, wherein
the battery packaging material includes a laminate having at least a base material layer, a metal layer and a sealant layer laminated in this order,
the base material layer comprises at least one of a polyester resin or a polyamide resin,
a total thickness of the laminate is in a range of 50 to 80 μm, and
a ratio of a sum of thicknesses of the base material layer and the metal layer to
a total thickness of the laminate is in a range of 0.380 to 0.630.

### Claim 8

A method of using a battery packaging material, the method comprising:
a step of hermetically sealing a battery element including at least a positive electrode, a negative electrode and an electrolyte within the battery packaging material, wherein
the battery packaging material includes a laminate having at least a base material layer, a metal layer and a sealant layer laminated in this order,
the base material layer comprises at least one of a polyester resin or a polyamide resin,
a total thickness of the laminate is in a range of 50 to 80 μm, and
a ratio of a sum of thicknesses of the base material layer and the metal layer to a total thickness of the laminate is in a range of 0.380 to 0.630.