# US 2014/0193702 A1 · Housing for a Galvanic Element

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- Number: US 2014/0193702 A1
- Document ID: US20140193702A1
- Status: Published application
- Kind: A1
- Application number: 13/825,300
- Filed: 2011-08-19
- Published: 2014-07-10
- Earliest claimed: 2010-09-21
- Assignees: Samsung SDI Co., Ltd.; Robert Bosch GmbH
- Inventors: Thomas Woehrle; Patrick Auracher; Aleksandar Petrevski; Conrad Bubeck
- Web page: https://patentgrep.com/patent/US20140193702A1

## CPC

- H01M 50/124: having a layered structure
- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 10/6551: Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
- 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 50/24: adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658)
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- Y10T 29/49906: Metal deforming with nonmetallic bonding
- 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
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A method for producing a housing for a galvanic element includes forming a metal base housing to improve the insulation properties of the housing and gluing an insulation film to at least one outer surface of the base housing.

## Claims

### Claim 1

A method for the production of a housing for an electrochemical element, comprising:
molding a metallic housing structure; and
applying a first insulation foil by adhesive bonding to at least one external area of the metallic housing structure.

### Claim 2 (depends on 1)

The method as claimed in claim 1, further comprising:
applying a second insulation foil by adhesive bonding to the first insulation foil.

### Claim 3 (depends on 1)

The method as claimed in claim 1, wherein at least one of the first insulation foil and the second insulation foil includes a layer system having at least one base layer and at least one adhesive layer.

### Claim 4 (depends on 1)

The method as claimed in claim 1, wherein at least one of the first insulation foil and the second insulation foil includes at least one base layer made of a polymer selected from the group consisting of polyesters, silicones, polyolefins, polyhaloolefins, polystyrenes, polyimides, and combinations thereof.

### Claim 5 (depends on 1)

The method as claimed in claim 1, wherein at least one of the first insulation foil and the second insulation foil includes at least one adhesive layer made of an adhesive selected from the group consisting of polysiloxane-based adhesives, acrylate-based adhesives, rubber-based adhesives, polyurethane-based adhesives, epoxy-resin-based adhesives, and combinations thereof.

### Claim 6 (depends on 1)

The method as claimed in claim 1, wherein adhesive bonding is used to apply the first insulation foil at least to exterior sides and an exterior base of the metallic housing structure.

### Claim 7 (depends on 6)

The method as claimed in claim 6, wherein a shape of the first insulation foil corresponds at least to a flattened version of planar regions of the exterior sides and of the exterior base.

### Claim 8 (depends on 1)

The method as claimed in claim 1, wherein adhesive bonding is used to automatically apply at least one of the first insulation foil and the second insulation foil from a strip of backing foil.

### Claim 9

A housing for a lithium ion cell, comprising:
a metallic housing structure defining a wall thickness that is greater than or equal to 100 μm; and
a first insulation foil applied by adhesive bonding to at least one external area of the metallic housing structure.

### Claim 10 (depends on 9)

The housing as claimed in claim 9, further comprising:
a second insulation foil applied by adhesive bonding to the first insulation foil.

### Claim 11 (depends on 10)

The housing as claimed in claim 10, wherein at least one of the first insulation foil and the second insulation foil includes a layer system having at least one base layer and at least one adhesive layer.

### Claim 12 (depends on 10)

The housing as claimed in claim 10, wherein at least one of the first insulation foil and the second insulation foil includes at least one base layer made of a polymer selected from the group consisting of polyesters, silicones, polyolefins, polyhaloolefins, polystyrenes, polyimides, and combinations thereof.

### Claim 13 (depends on 10)

The housing as claimed in claim 10, wherein at least one of the first insulation foil and the second insulation foil includes at least one adhesive layer made of an adhesive selected from the group consisting of polysiloxane-based adhesives, acrylate-based adhesives, rubber-based adhesives, polyurethane-based adhesives, epoxy-resin-based adhesives, and combinations thereof.

### Claim 14 (depends on 9)

The housing as claimed in claim 9, wherein the shape of the first insulation foil corresponds at least to a flattened version of planar regions of exterior sides and of an exterior base of the metallic housing structure.

### Claim 15 (depends on 9)

The housing as claimed in claim 9, wherein a lithium ion cell includes the housing.
