# US 2013/0280563 A1 · Secondary battery

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- Number: US 2013/0280563 A1
- Document ID: US20130280563A1
- Status: Published application
- Kind: A1
- Application number: 13/786,297
- Filed: 2013-03-05
- Published: 2013-10-24
- Earliest claimed: 2012-04-20
- Assignees: Robert Bosch GmbH; Samsung SDI Co., Ltd.
- Applicants: Samsung SDI Co., Ltd.; Robert Bosch GmbH
- Inventors: Minhyung GUEN
- Web page: https://patentgrep.com/patent/US20130280563A1

## CPC

- H01M 10/0525: Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
- H01M 10/058: Construction or manufacture
- H01M 50/574: Devices or arrangements for the interruption of current
- H01M 2200/00: Safety devices for primary or secondary batteries
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- 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
- 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
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A secondary battery including: a case including an accommodation space therein; an electrode assembly housed in the case, the electrode assembly including a coating portion, a first electrode including a first non-coating portion, and a second electrode including a second non-coating portion; a short circuit induction member electrically connected to at least one of the first or second non-coating portions; and a cap plate sealing the case, the short circuit induction member including a contact maintaining part extending along a longitudinal direction of the electrode assembly.

## Claims

### Claim 1

A secondary battery comprising:
a case including an accommodation space therein;
an electrode assembly housed in the case, the electrode assembly comprising a coating portion, a first electrode including a first non-coating portion, and a second electrode including a second non-coating portion;
a short circuit induction member electrically connected to at least one of the first or second non-coating portions; and
a cap plate sealing the case,
wherein the short circuit induction member comprises a contact maintaining part extending along a longitudinal direction of the electrode assembly.

### Claim 2 (depends on 1)

The secondary battery as claimed in claim 1, wherein the contact maintaining part is at a region of the short circuit induction member corresponding to the coating portion of the electrode assembly.

### Claim 3 (depends on 1)

The secondary battery as claimed in claim 1, wherein the contact maintaining part comprises at least one of polyphenylene sulfide (PPS) or Teflon.

### Claim 4 (depends on 1)

The secondary battery as claimed in claim 1, wherein the short circuit induction member further comprises:
a coupling part coupled to the at least one of the first or second non-coating portions; and
a penetration part extending from the coupling part along the longitudinal direction of the electrode assembly,
wherein the contact maintaining part is arranged on at least one surface of the penetration part.

### Claim 5 (depends on 4)

The secondary battery as claimed in claim 4, wherein the coupling part has a shape conforming with a shape of the at least one of the first or second non-coating portions.

### Claim 6 (depends on 4)

The secondary battery as claimed in claim 4, wherein the contact maintaining part is formed through an injection molding process using the penetration part, or the contact maintaining part comprises a tape adhered to the penetration part, or the contact maintaining part is formed on the penetration part through laminating.

### Claim 7 (depends on 1)

The secondary battery as claimed in claim 1, wherein the first non-coating portion is electrically connected to the case, and the short circuit induction member is electrically connected to the second non-coating portion.

### Claim 8 (depends on 7)

The secondary battery as claimed in claim 7, wherein the first non-coating portion is electrically connected to the cap plate and the case through a collector.

### Claim 9 (depends on 7)

The secondary battery as claimed in claim 7, wherein the short circuit induction member is electrically insulated from the cap plate and the case.

### Claim 10 (depends on 1)

The secondary battery as claimed in claim 1,
wherein the first non-coating portion and the second non-coating portion are electrically insulated from the case and the cap plate,
wherein the short circuit induction member comprises a first short circuit induction member and a second short circuit induction member, and
wherein the first short circuit induction member and the second short circuit induction member are electrically connected to the first non-coating portion and the second non-coating portion, respectively.

### Claim 11 (depends on 10)

The secondary battery as claimed in claim 10, wherein the first and second short circuit induction members are symmetrical to each other with respect to the electrode assembly.

### Claim 12 (depends on 10)

The secondary battery as claimed in claim 10,
wherein the first and second short circuit induction members are arranged at opposite surfaces of the electrode assembly, respectively, and
wherein the opposite surfaces of the electrode assembly are arranged along a direction perpendicular to the longitudinal direction of the electrode assembly.
