Rechargeable battery

Patent metadata

Field	Value
Publication number	US-2017194617-A1
Application number	US-201615260243-A
Country	US
Kind code	A1
Filing date	Sep 8, 2016
Priority date	Jan 4, 2016
Publication date	Jul 6, 2017
Grant date	—

Abstract

A rechargeable battery includes: an electrode assembly including a first electrode and a second electrode; a first current collector plate electrically connected to the first electrode; a case accommodating the electrode assembly and having a top opening; a cap assembly including a cap plate sealing the top opening of the case; and a first terminal electrically connected to the first current collector plate and passing through and protruding above the cap plate. The first terminal includes: a first fastening terminal electrically connected to the first current collector plate and passing through and protruding above the cap plate, a first electrode terminal, one end of which is coupled to the first fastening terminal on the cap plate; and a first fixing member coupling another end of the first electrode terminal and electrically connecting the first electrode terminal and the cap plate to each other.

First claim

What is claimed is:

1 . A rechargeable battery comprising:
an electrode assembly comprising a first electrode and a second electrode; a first current collector plate electrically connected to the first electrode; a case accommodating the electrode assembly and having a top opening; a cap assembly comprising a cap plate sealing the top opening of the case; and a first terminal electrically connected to the first current collector plate and passing through and protruding above the cap plate, the first terminal comprising:
a first fastening terminal electrically connected to the first current collector plate and passing through and protruding above the cap plate;
a first electrode terminal, one end of which is coupled to the first fastening terminal on the cap plate; and
a first fixing member coupling another end of the first electrode terminal and electrically connecting the first electrode terminal and the cap plate to each other.

2 . The rechargeable battery of claim 1 , wherein the first fixing member is welded to a top surface of the cap plate.

3 . The rechargeable battery of claim 1 , wherein the first terminal further comprises a first fastening screw passing through another end of the first electrode terminal to be screw-coupled to a first coupling groove in the first fixing member.

4 . The rechargeable battery of claim 1 , wherein the first terminal further comprises a first insulation plate between the first electrode terminal and the cap plate.

5 . The rechargeable battery of claim 4 :wherein the first insulation plate comprises a first coupling opening passing through top and bottom surfaces thereof, and
wherein the first fixing member is in the first coupling opening.

6 . The rechargeable battery of claim 1 , wherein the first fixing member comprises stainless steel.

7 . The rechargeable battery of claim 1 , further comprising:
a second current collector plate electrically connected to the second electrode; and a second terminal electrically connected to the second current collector plate and passing through and protruding above the cap plate.

8 . The rechargeable battery of claim 7 , wherein the second terminal comprises:
a second fastening terminal electrically connected to the second current collector plate and passing through and protruding above the cap plate; a second electrode terminal, one end of which is coupled to the second fastening terminal on the cap plate; a second insulation plate between the second electrode terminal and the cap plate and having a second coupling opening under another end of the second electrode terminal; a second fixing member in the second coupling opening and between the other end of the second electrode terminal and the cap plate; and a second fastening screw passing through the other end of the second electrode terminal and screw-coupled to a second coupling groove in the second fixing member.

9 . The rechargeable battery of claim 8 , wherein the second fixing member comprises an insulating material.

10 . A rechargeable battery comprising:
an electrode assembly comprising a first electrode and a second electrode; a first current collector plate electrically connected to the first electrode; a case accommodating the electrode assembly and having a top opening; a cap assembly comprising a cap plate sealing the top opening of the case; and a first terminal electrically connected to the first current collector plate and passing through and protruding above the cap plate, the first terminal comprising:
a first fastening terminal electrically connected to the first current collector plate and passing through and protruding above the cap plate;
a first electrode terminal, one end of which is coupled to the first fastening terminal on the cap plate; and
a first fastening screw passing through another end of the first electrode terminal and fixing the first electrode terminal to a top surface of the cap plate.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Baik Yunki
• Nam Jongwoo

Classifications

• H01M50/528 Primary

  Fixed electrical connections, i.e. not intended for disconnection · CPC title

• H01M50/645

  Plugs · CPC title

• H01M50/59

  characterised by the protection means · CPC title

• H01M50/553

  Terminals adapted for prismatic, pouch or rectangular cells · CPC title

• H01M50/562

  characterised by the material · CPC title