# US 8,541,125 B2 · Battery pack

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- Number: US 8,541,125 B2
- Document ID: US8541125B2
- Status: Granted
- Kind: B2
- Application number: 12/760,757
- Filed: 2010-04-15
- Published: 2011-01-13
- Granted: 2013-09-24
- Earliest claimed: 2009-07-09
- Assignees: Samsung SDI Co., Ltd.
- Applicants: Bongyoung Kim
- Inventors: Bongyoung Kim
- Web page: https://patentgrep.com/patent/US8541125B2

## CPC

- H01M 4/0459: {Electrochemical doping, intercalation, occlusion or alloying}
- H01M 10/4257: {Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries}
- H01M 50/593: Spacers; Insulating plates
- H01M 2200/106: PTC
- 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 battery pack that prevents a circuit module from being bent and improves durability against an external impact. The battery pack includes a bare cell on which an electrode terminal protrudes from a surface thereof, a circuit module disposed on the surface of the bare cell, a first lead plate coupled to a side of the circuit module, the first lead plate being connected to the surface of the bare cell, and a first holder disposed between the circuit module and the surface of the bare cell, the first holder being coupled to the first lead plate.

## Claims

### Claim 1

A battery pack, comprising:
a bare cell on which an electrode terminal protrudes from a surface of the bare cell;
a circuit module disposed on the surface of the bare cell;
a first lead plate coupled to a side of the circuit module, the first lead plate being connected to the surface of the bare cell; and
a first holder disposed between the circuit module and the surface of the bare cell, the first holder being coupled to the first lead plate,
wherein the first holder comprises:
a first holder sidewall part comprising a pair of plates facing each other;
a first holder connection part connecting one end of the pair of plates to each other;
a first holder insertion hole in which the first lead plate is inserted, the first holder insertion hole being formed below the first holder connection part; and
a first holder bottom part connecting lower ends of the pair of plates to each other,
wherein the first lead plate is inserted into the first holder insertion hole and is extended outward of the first holder.

### Claim 2 (depends on 1)

The battery pack as claimed in claim 1, wherein the first holder is attached to the surface of the bare cell by an adhesive member.

### Claim 3 (depends on 1)

The battery pack as claimed in claim 1, wherein the first holder sidewall part is disposed parallel to a long side direction of the surface of the bare cell, and the first holder bottom part is disposed parallel to the surface of the bare cell.

### Claim 4 (depends on 1)

The battery pack as claimed in claim 1, wherein the first holder is formed of an insulating material.

### Claim 5 (depends on 1)

The battery pack as claimed in claim 1, wherein the first lead plate comprises:
a first lead bottom part contacting a side of a bottom surface of the circuit module;
a first lead sidewall part bent and extending from the first lead bottom part; and
a first lead extension part bent and extending from the first lead sidewall part to contact the surface of the bare cell, the first lead extension part being parallel to the first lead bottom part.

### Claim 6 (depends on 5)

The battery pack as claimed in claim 5, wherein the first lead extension part is inserted into the first holder insertion hole.

### Claim 7 (depends on 5)

The battery pack as claimed in claim 5, wherein the first holder connection part and the first lead sidewall part are disposed parallel to each other on the surface of the bare cell.

### Claim 8 (depends on 1)

The battery pack as claimed in claim 1, wherein the first lead plate is formed of a metallic material.

### Claim 9 (depends on 1)

The battery pack as claimed in claim 1, further comprising a second lead plate coupled to the other side of the circuit module, the second lead plate being connected to the surface of the bare cell.

### Claim 10 (depends on 9)

The battery pack as claimed in claim 9, wherein the second lead plate is disposed and formed in a position and shape which are symmetrical to those of the first lead plate with respect to the electrode terminal.

### Claim 11 (depends on 9)

The battery pack as claimed in claim 9, further comprising a second holder disposed between the circuit module and the surface of the bare cell, the second holder being coupled to the second lead plate.

### Claim 12 (depends on 11)

The battery pack as claimed in claim 11, wherein the second holder has a shape symmetrical to that of the first holder with respect to the electrode terminal.

### Claim 13 (depends on 1)

The battery pack as claimed in claim 1, further comprising a top cover covering the circuit module.