# US 12,119,516 B2 · Battery pack

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- Number: US 12,119,516 B2
- Document ID: US12119516B2
- Status: Granted
- Kind: B2
- Application number: 17/694,938
- Filed: 2022-03-15
- Published: 2022-10-06
- Granted: 2024-10-15
- Earliest claimed: 2021-03-30
- Assignees: Samsung SDI Co., Ltd.
- Applicants: Samsung SDI Co., Ltd.
- Inventors: Dae Hyung Yoo; Chan Woo Kang
- Web page: https://patentgrep.com/patent/US12119516B2

## CPC

- H01M 50/284: with incorporated circuit boards, e.g. printed circuit boards [PCB]
- H01M 50/528: Fixed electrical connections, i.e. not intended for disconnection
- H01M 50/105: Pouches or flexible bags
- H01M 50/50: Current conducting connections for cells or batteries
- H01M 50/552: characterised by their shape
- H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence)
- H01M 50/55: on the same side of the cell
- H01M 2200/00: Safety devices for primary or secondary batteries
- H02J 7/60: including safety or protection arrangements
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A battery pack including a battery cell, the battery cell including a cell tab extending from a terrace part thereof; and a protection circuit module spaced apart from the battery cell and having a module tab to which the cell tab is welded, wherein the cell tab includes a bending part that is bent a predetermined number of times.

## Claims

### Claim 1

A battery pack, comprising:
a battery cell, the battery cell including a terrace part and a cell tab extending from the terrace part; and
a protection circuit module spaced apart from the battery cell and having a module tab to which the cell tab is welded,
wherein:
the cell tab includes a bending part that is bent a predetermined number of times to form an approximately S-shape,
the module tab is spaced apart from the terrace part in a horizontal direction parallel to a plane of the terrace part and does not overlap any portion of the terrace part,
the bending part includes a first bending part and a second bending part, and
the second bending part is horizontally between a proximate end and a distal end of the terrace part.

### Claim 2 (depends on 1)

The battery pack as claimed in claim 1, wherein the cell tab is bent two or more times.

### Claim 3 (depends on 1)

The battery pack as claimed in claim 1, wherein:
a level of the terrace part is higher than a level of the module tab, or
the level of the terrace part is greater than a level of the protection circuit module.

### Claim 4 (depends on 1)

The battery pack as claimed in claim 1, wherein a level of the terrace part is the same as or lower than a level of the module tab.

### Claim 5 (depends on 1)

The battery pack as claimed in claim 1, wherein
a radius of curvature of the first bending part is greater than a radius of curvature of the second bending part.

### Claim 6 (depends on 5)

The battery pack as claimed in claim 5, wherein the second bending part is spaced apart from a sidewall of the battery cell such that the second bending part does not contact the sidewall of the battery cell.

### Claim 7 (depends on 5)

The battery pack as claimed in claim 5, wherein the first bending part and the second bending part are spaced apart from each other in the horizontal direction parallel to the plane of the terrace part and in a vertical direction perpendicular to the plane of the terrace part.

### Claim 8 (depends on 5)

The battery pack as claimed in claim 5, further comprising a sealing member at the distal end of the terrace part, wherein the second bending part is laterally between the proximate end of the terrace part and the sealing member.

### Claim 9 (depends on 1)

The battery pack as claimed in claim 1, wherein a part of the protection circuit module overlaps the terrace part in a vertical direction perpendicular to the plane of the terrace part.

### Claim 10 (depends on 1)

The battery pack as claimed in claim 1, wherein part of the protection circuit module is spaced apart from the terrace part in the horizontal direction parallel to the plane of the terrace part so as to not overlap the terrace part.

### Claim 11 (depends on 10)

The battery pack as claimed in claim 10, wherein the protection circuit module includes a cutout part provided by cutting a portion of the protection circuit module.

### Claim 12 (depends on 1)

The battery pack as claimed in claim 1, wherein the cell tab further includes a third bending part in a region adjacent to the module tab.

### Claim 13 (depends on 1)

The battery pack as claimed in claim 1, further comprising an insulation member between the bending part and the terrace part.

### Claim 14 (depends on 10)

The battery pack as claimed in claim 10, further comprising a support frame below the terrace part and the cell tab.
