Rechargeable battery

Patent metadata

Field	Value
Publication number	US-8940420-B2
Application number	US-201213343948-A
Country	US
Kind code	B2
Filing date	Jan 5, 2012
Priority date	Sep 29, 2011
Publication date	Jan 27, 2015
Grant date	Jan 27, 2015

Abstract

A battery includes an electrode assembly including a first electrode and a second electrode, a first electrode terminal, and a first current collecting member electrically connecting the first electrode terminal and a first electrode uncoated region of the first electrode. The first current collecting member includes a first terminal connection region, a side plate extending downwardly from the first terminal connection region towards the first electrode uncoated region, a first current collecting piece extending from the side plate, the first current collecting piece being in contact with the first electrode uncoated region, and a fuse between the side plate and the first current collecting piece.

First claim

What is claimed is:

1. A battery, comprising:
an electrode assembly including a first electrode and a second electrode;
a first electrode terminal; and
a first current collecting member electrically connecting the first electrode terminal and a first electrode uncoated region of the first electrode, the first current collecting member including
a first terminal connection region,
a side plate extending downwardly from the first terminal connection region towards the first electrode uncoated region,
a first current collecting piece coupled with the side plate, the first current collecting piece being in contact with the first electrode uncoated region, and
a fuse in a region of the first current collecting member that extends between the side plate and the first current collecting piece, the fuse having a smaller sectional area than adjacent portions of the side plate and the first current collecting piece.

2. The battery as claimed in claim 1 , wherein the first terminal connection region, the side plate, the first current collecting piece, and the fuse are formed of a same material.

3. The battery as claimed in claim 2 , wherein the first terminal connection region, the side plate, the first current collecting piece, and the fuse are integral with one another.

4. The battery as claimed in claim 1 , wherein at least two first current collecting pieces extend laterally from the side plate.

5. The battery as claimed in claim 1 , further comprising a plurality of electrode assemblies and a corresponding plurality of first current collecting pieces, the fuse including first and second fuse regions between the side plate and two first current collecting pieces of the plurality of first current collecting pieces, respectively.

6. The battery as claimed in claim 5 , wherein the first and second fuse regions extend laterally between the side plate and the two first current collecting pieces.

7. The battery as claimed in claim 6 , further comprising a third fuse region extending vertically from the side plate, the third fuse region being between the side plate and first current collecting pieces other than the two first current collecting pieces.

8. The battery as claimed in claim 7 , wherein the third fuse region contacts a connection region extending laterally between first current collecting pieces other than the two first current collecting pieces.

9. The battery as claimed in claim 6 , further comprising connection regions connecting the two first current collecting pieces to adjacent first current collecting pieces, respectively.

10. The battery as claimed in claim 6 , further comprising:
a connection region extending vertically from the side plate; and
a third fuse region extending laterally from the connection region, the third fuse region being between the connection region and a third first current collecting piece.

11. The battery as claimed in claim 10 , further comprising:
a fourth fuse region extending laterally from the connection region, on a side opposite the third fuse region, the fourth fuse region being between the connection region and a fourth first current collecting piece.

12. The battery as claimed in claim 5 , wherein the plurality of first current collecting pieces is two current collecting pieces.

13. The battery as claimed in claim 4 , wherein the fuse includes a fuse region is in an electrical path between each current collecting piece and the side plate.

14. The battery as claimed in claim 1 , further comprising a short circuit member connected to the first electrode terminal.

15. The battery as claimed in claim 1 , wherein the first current collecting piece is welded to the first electrode uncoated region.

16. The battery as claimed in claim 1 , further comprising a blocking member made of an electrically insulating material and at least partially surrounding the fuse.

17. The battery as claimed in claim 16 , wherein the blocking member includes a base region on a side of the fuse opposite the electrode uncoated region and protrusions between the first terminal connection region and the first current collecting piece.

18. The battery as claimed in claim 1 , further comprising:
a second electrode terminal;
a second current collecting member electrically connecting the second electrode terminal and a second electrode uncoated region of the second electrode; and
safety members on lateral sides of the electrode assembly and electrically connected to the second electrode.

19. The battery as claimed in claim 18 , wherein each safety member includes:
a conductive plate;
an insulating region separating the conductive plate and the electrode assembly; and
an electrode connection region electrically connecting the conductive plate and the second electrode, wherein the electrode connection region is welded to the second electrode.

Assignees

• Han Min-Yeol
• Byun Sang-Won
• Yoon Hae-Kwon
• Samsung Sdi Co Ltd
• Bosch Gmbh Robert

Inventors

• Han Min-Yeol
• Byun Sang-Won
• Yoon Hae-Kwon

Classifications

• H01M50/581 Primary

  in response to temperature · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M50/583

  in response to current, e.g. fuses · CPC title

• H01M50/147

  Lids or covers · CPC title

• H01M2200/103

  Fuse · CPC title