Rechargeable battery

Patent metadata

Field	Value
Publication number	US-9825277-B2
Application number	US-201514728942-A
Country	US
Kind code	B2
Filing date	Jun 2, 2015
Priority date	Sep 29, 2014
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

A rechargeable battery includes a case; an electrode assembly accommodating the case; a cap plate sealing an opening of the case; terminals electrically coupled to the electrode assembly and penetrating the cap plate; terminal plates on the cap plate and coupled to a respective one of the terminals; and a connecting member including a sinuous body located between the cap plate and the terminal plate to electrically couple the cap plate and the terminal plate.

First claim

What is claimed is:

1. A rechargeable battery comprising:
a case;
an electrode assembly accommodated in the case;
a cap plate sealing the case;
terminals electrically coupled to the electrode assembly and penetrating the cap plate;
terminal plates on the cap plate, wherein each of the terminal plates extends in a first plane and is coupled to a respective one of the terminals; and
a connecting member including a planar sinuous body extending in a second plane parallel to the first plane and being located between the cap plate and a respective one of the terminal plates to electrically couple the cap plate and the terminal plate.

2. The rechargeable battery of claim 1 , wherein the sinuous body includes a first connector that faces the terminal plate and is electrically coupled to the terminal plate, a second connector that faces the cap plate and is electrically coupled to the cap plate, and a bent portion that connects the first connector and the second connector.

3. The rechargeable battery of claim 2 , wherein the bent portion of the sinuous body is covered with an insulating coating layer.

4. The rechargeable battery of claim 2 , wherein the bent portion of the sinuous body is spiral-shaped.

5. The rechargeable battery of claim 2 , wherein the first connector includes a first protrusion that protrudes from a first side facing the terminal plate, and the second connector includes a second protrusion that is located opposite to the first side to protrude from a second side facing the cap plate.

6. The rechargeable battery of claim 5 , wherein the first side has a first insulating coating layer that is thinner than the first protrusion, and the second side is covered with a second insulating coating layer that is thinner than the second protrusion.

7. The rechargeable battery of claim 1 , wherein the sinuous body of the connecting member includes a through-hole through which the terminal penetrates.

8. The rechargeable battery of claim 6 , further comprising a current collecting member electrically coupling the terminal and the electrode assembly and including a fuse portion.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Byun Sang-Won
• Lee Won-Jun
• Lee Hong-Hyeon
• Kim Jae-Kyung
• Kim In

Classifications

• H01M50/581 Primary

  in response to temperature · CPC title

• H01M2200/00

  Safety devices for primary or secondary batteries · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M10/0431 Primary

  Cells with wound or folded electrodes (H01M10/045 takes precedence) · CPC title

• H01M2200/103

  Fuse · CPC title