# US 12,603,363 B2 · Exterior material, method of forming pattern on exterior material, and method of manufacturing battery including exterior material

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,603,363 B2
- Document ID: US12603363B2
- Status: Granted
- Kind: B2
- Application number: 17/999,160
- Filed: 2021-12-14
- Published: 2023-06-22
- Granted: 2026-04-14
- Earliest claimed: 2020-12-28
- Assignees: LiBEST INC.
- Applicants: LiBEST INC.
- Inventors: Joo Seong Kim; Seung Gyu Lim; Gil Ju Lee
- Web page: https://patentgrep.com/patent/US12603363B2

## CPC

- H01M 50/124: having a layered structure
- H01M 10/04: Construction or manufacture in general (H01M10/058, H01M10/12, H01M10/28, H01M10/38 take precedence)
- H01M 10/049: {Processes for forming or storing electrodes in the battery container}
- H01M 50/10: Primary casings; Jackets or wrappings
- H01M 50/103: prismatic or rectangular (H01M50/109, H01M50/11 take precedence)
- H01M 50/105: Pouches or flexible bags
- H01M 50/119: Metals
- H01M 50/121: Organic material
- H01M 50/126: comprising three or more layers
- H01M 50/129: with two or more layers of only organic material
- H01M 50/133: Thickness
- H01M 50/136: Flexibility or foldability
- H01M 50/178: for pouch or flexible bag cells
- H01M 50/186: characterised by the disposition of the sealing members
- H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- 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

## Abstract

An exterior material to be used for a battery comprises at least one pattern part formed in a machine direction (MD) of the exterior material, wherein the MD of the exterior material is a width direction of a battery including the exterior material, and a transverse direction (TD) of the exterior material is a longitudinal direction of the battery including the exterior material.

## Claims

### Claim 1

A battery including an exterior material, the exterior material comprising:
at least one pattern part formed in a machine direction (MD) of the exterior material; and
a sealing part enclosing the pattern part and formed by bonding parts of two surfaces of the exterior material to form a sealed space between the two surfaces, wherein
the MD of the exterior material is a width direction of a battery including the exterior material,
a transverse direction (TD) of the exterior material is a longitudinal direction of the battery including the exterior material,
an edge portion of the pattern part is adjacent to the sealing part,
a radius of curvature of the edge portion of the pattern part is smaller than a radius of curvature of a central portion of the pattern part, and
the central portion of the pattern part is located in the width direction of the battery from the edge portion of the pattern part.

### Claim 2 (depends on 1)

The battery of claim 1, wherein
the exterior material is folded in the TD of the exterior material during manufacturing of the battery, and
the battery is configured to be bent in the TD of the exterior material.

### Claim 3 (depends on 1)

The battery of claim 1, wherein
the exterior material is folded in the MD of the exterior material during manufacturing of the battery, and
the battery is configured to be bent in the TD of the exterior material.

### Claim 4 (depends on 1)

The battery of claim 1, wherein a radius of curvature of the pattern part decreases from a central portion toward the edge portion of the pattern part.

### Claim 5 (depends on 1)

The battery of claim 1, wherein the pattern part is formed in the MD of the exterior material in consideration of probability of damage to the edge portion of the pattern part.

### Claim 6 (depends on 1)

The battery of claim 1, wherein a fatigue life against deformation of the edge portion of the pattern part is set based on the pattern part formed in the MD of the exterior material.

### Claim 7 (depends on 6)

The battery of claim 6, wherein the fatigue life against deformation of the edge portion of the pattern part is longer than a fatigue life against deformation of an edge portion of a pattern part of another exterior material including at least one pattern part formed in the TD of the exterior material.

### Claim 8 (depends on 1)

The battery of claim 1, wherein the exterior material is formed into a multilayer structure in which at least one material is laminated.

### Claim 9

A method of manufacturing a battery including an exterior material, comprising:
forming at least one pattern part on an exterior material in a machine direction (MD) of the exterior material;
folding the exterior material;
inserting an electrode assembly into the folded exterior material;
sealing the exterior material into which the electrode assembly is inserted;
forming a sealing part enclosing the pattern part by bonding parts of two surfaces of the exterior material to form a sealed space between the two surfaces, wherein
the MD of the exterior material is a width direction of the battery including the exterior material,
a transverse direction (TD) of the exterior material is a longitudinal direction of the battery including the exterior material,
an edge portion of the pattern part is adjacent to the sealing part,
a radius of curvature of the edge portion of the pattern part is smaller than a radius of curvature of a central portion of the pattern part, and
the central portion of the pattern part is located in the width direction of the battery from the edge portion of the pattern part.