Cell connector for a battery system or for a battery cell of an electrical energy store, battery and motor vehicle

Patent metadata

Field	Value
Publication number	US-10044020-B2
Application number	US-201314388732-A
Country	US
Kind code	B2
Filing date	Jan 30, 2013
Priority date	Mar 28, 2012
Publication date	Aug 7, 2018
Grant date	Aug 7, 2018

Abstract

A cell connector for connecting lithium-ion battery cells of a lithium ion battery includes a body and a fuse.

First claim

The invention claimed is:

1. A cell connector for a battery system having a plurality of lithium-ion cells, comprising:
a body that includes:
a first portion configured as a cable connector portion or a fabric connector portion;
a second portion configured as a cable connector portion or a fabric connector portion; and
a fuse integrated within the body between the first portion and the second portion.

2. The cell connector as claimed in claim 1 , wherein:
the first portion includes a first contact end of the cell connector;
the second portion includes a second contact end of the connector; and
the fuse includes a cutout or a tapered portion that is defined by the body and that is located between the first and second contact ends.

3. The cell connector as claimed in claim 2 , wherein:
the body further includes a compensation element that has a convex portion located between the first and second contact ends; and
the cutout or tapered portion is at a location external to the compensation element.

4. The cell connector as claimed in claim 2 wherein:
the fuse is configured such that a short circuit in the battery system causes the fuse to separate the first portion from the second portion; and
the cell connector is prestressed, such that separation of the first portion from the second portion by the fuse causes the first portion and the second portion to move away from each other due to the prestress.

5. The cell connector as claimed in claim 1 , wherein the fuse has a plastic sheathing.

6. The cell connector as claimed in claim 1 , wherein the body includes a plurality of layers of either sheet metal or metallic foil.

7. A battery, comprising:
a plurality of lithium-ion battery cells; and
a plurality of cell connectors, wherein each of the cell connectors includes:
a body that includes:
a first portion configured as a cable connector portion or a fabric connector portion;
a second portion configured as a cable connector portion or a fabric connector portion; and
a fuse integrated within the body between the first portion and the second portion;

wherein the lithium-ion battery cells are electrically connected to each other by at least one of the cell connectors.

8. A motor vehicle comprising:
a drive system;
a battery including a plurality of lithium-ion battery cells; and
a plurality of cell connectors, wherein each of the cell connectors includes:
a body that includes:
a first portion configured as a cable connector portion or a fabric connector portion;
a second portion configured as a cable connector portion or a fabric connector portion; and
a fuse integrated within the body between the first portion and the second portion;

wherein the lithium-ion battery cells are electrically connected to each other by at least one of the cell connectors; and
wherein the battery is connected to the drive system of the motor vehicle.

Assignees

• Bosch Gmbh Robert
• Samsung Sdi Co Ltd

Inventors

• Schweinbenz Jochen
• Wipfler Klaus
• Kohlberger Markus

Classifications

• H01M50/524

  Organic material · CPC title

• H01M50/522

  Inorganic material · CPC title

• H01M50/583 Primary

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

• H01M50/503

  characterised by the shape of the interconnectors · CPC title

• H01M2220/20

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