RECHARGEABLE BATTERY

• US 20140315052A1
• Filed: 08/30/2013
• Published: 10/23/2014
• Est. Priority Date: 04/17/2013
• Status: Active Grant

• Current Assignee: Samsung SDI Company Limited
• Original Assignee: Samsung SDI Company Limited
• Inventors: Byun, Sang-Won, Oh, Jeong-Won, Kim, Hyung-Sik, Yun, Yong-Hee, Lee, Seung-Bok
• Granted Patent: US 9,324,988 B2
• Time in Patent Office: Days
• US Class Current: 429/61
• CPC Class Codes: H01M 10/0413 Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
• CPC Class Codes: H01M 10/058 Construction or manufacture
• CPC Class Codes: H01M 2200/103 Fuse
• CPC Class Codes: H01M 50/536 characterised by the method of fixing the leads to the electrodes, e.g. by welding
• CPC Class Codes: H01M 50/538 Connection of several leads or tabs of wound or folded electrode stacks
• CPC Class Codes: H01M 50/581 in response to temperature
• CPC Class Codes: H01M 50/583 in response to current, e.g. fuses
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A rechargeable battery including: an electrode assembly including a negative electrode and a positive electrode; a case receiving the electrode assembly; a terminal electrically connected to the electrode assembly and protruding outside the case; a current collecting member electrically connecting the terminal and the electrode assembly to each other; and an insulating member partially enclosing the current collecting member, and the current collecting member includes a plurality of fuse parts including a first fuse part enclosed by the insulating member, and a second fuse part that is not enclosed by the insulating member and is exposed.

Claims

1. A rechargeable battery comprising:

an electrode assembly comprising a negative electrode and a positive electrode;

a case receiving the electrode assembly;

a terminal electrically connected to the electrode assembly and protruding outside the case;

a current collecting member electrically connecting the terminal and the electrode assembly to each other; and

an insulating member partially enclosing the current collecting member,

wherein the current collecting member includes a plurality of fuse parts including a first fuse part enclosed by the insulating member, and a second fuse part that is not enclosed by the insulating member and is exposed.

2. The rechargeable battery of claim 1, wherein a fuse hole is formed in the current collecting member, the first fuse part is adjacent one end of the fuse hole, and the second fuse part is adjacent an opposite end of the fuse hole.

3. The rechargeable battery of claim 1, wherein the current collecting member comprises:

a terminal combination part fixed to the terminal;

a side plate bent from the terminal combination part; and

a first current collecting piece bent from the side plate and fixed to the positive electrode or the negative electrode.

4. The rechargeable battery of claim 3, wherein the current collecting member further comprises:

a connection part connected to the side plate; and

a second current collecting piece bent from the connection part and fixed to the positive electrode or the negative electrode.

5. The rechargeable battery of claim 4, wherein the insulating member comprises:

a lower insulating part enclosing the connection part; and

a current collecting insulating part enclosing the second current collecting piece bent from the connection part.

6. The rechargeable battery of claim 3, wherein the insulating member comprises an upper insulating part enclosing the terminal combination part, and the upper insulating part includes a cut part exposing the second fuse part.

7. The rechargeable battery of claim 6, wherein the current collecting member includes a fuse hole, and the upper insulating part includes a separation supporting part inserted into the fuse hole.

8. The rechargeable battery of claim 6, wherein the insulating member includes a side insulating part enclosing the side plate, and a current collecting insulating part enclosing the first current collecting piece bent from the side plate.

9. The rechargeable battery of claim 1, wherein the first fuse part and the second fuse part are separated and disposed according to a width direction of the insulating member.

10. The rechargeable battery of claim 1, wherein the current collecting member includes a first fuse hole and a second fuse hole, and the first fuse hole and the second fuse hole are separated and disposed according to a width direction of the current collecting member.

11. The rechargeable battery of claim 10, wherein the first fuse part is adjacent an end of the first fuse hole, the second fuse part is adjacent an end of the second fuse hole, and the third fuse part is between the first fuse hole and the second fuse hole.

12. The rechargeable battery of claim 11, wherein the insulating member includes a cut part exposing the first fuse part and the second fuse part.

13. The rechargeable battery of claim 1, wherein the insulating member is formed by insert injection.

14. The rechargeable battery of claim 1, wherein the insulating member comprises at least one selected from the group consisting of polypropylene (PP), perfluoroalkoxy (PFA), polyphenylene sulfide (PPS), and polyether ether ketone (PEEK).