Rechargeable battery module

Patent metadata

Field	Value
Publication number	US-9246143-B2
Application number	US-201313780147-A
Country	US
Kind code	B2
Filing date	Feb 28, 2013
Priority date	Jun 19, 2012
Publication date	Jan 26, 2016
Grant date	Jan 26, 2016

Abstract

A rechargeable battery module, including unit cells that are adjacent to each other, each of the unit cells being configured as a rechargeable battery and including a first electrode terminal, a second electrode terminal, and a case that is electrically connected to the second electrode terminal, an insulation film on at least one side among all sides of the unit cells, and a conductive member on a side of the insulation film, the conductive member being electrically connected to the first electrode terminal of at least one of the unit cells.

First claim

What is claimed is:

1. A rechargeable battery module, comprising:
unit cells that are adjacent to each other, each of the unit cells being configured as a rechargeable battery and including a first electrode terminal, a second electrode terminal, and a case that is electrically connected to the second electrode terminal;
an insulation film on at least one side among all sides of the unit cells; and
a conductive member on a side the insulation film, the conductive member being electrically connected to the first electrode terminal of at least one of the unit cells,
wherein the insulation film and the conductive member overlap each other, the insulation film being between the conductive member and at least one case of the unit cells to separate therebetween,
wherein the unit cells define a module, the insulation film continuously surrounding an entire perimeter of the module, and
wherein the conductive member continuously surrounds the insulation film along the entire perimeter of the module, the insulation film insulating the conductive member from respective cases of all the unit cells.

2. The rechargeable battery module as claimed in claim 1 , wherein:
the unit cells are connected to each other by busbars,
a first final terminal is connected to the first electrode terminal of a first unit cell at a first side of the rechargeable battery module, and
a second final terminal is connected to the second electrode terminal of a second unit cell at a second side of the rechargeable battery module, the second side being opposite first side.

3. The rechargeable battery module as claimed in claim 2 , further comprising a connection member, wherein a first side of the connection member is connected to the conductive member and a second side of the connection member is connected to the first final terminal so that the conductive member has a same polarity as the first electrode terminal of the first unit cell, a connection between the second side of the connection member and the first final terminal being external with respect to the rechargeable battery module.

4. The rechargeable battery module as claimed in claim 1 , further comprising a connection member that is external in its entirety with respect to all the unit cells and to the conductive member, wherein:
the unit cells are connected to each other by busbars, and
a first side of the connection member is connected to the conductive member and a second side of the connection member is connected to the first electrode terminal of a first unit cells so that the conductive member has a same polarity as the first electrode terminal of the first unit cell.

5. The rechargeable battery module as claimed in claim 1 , wherein:
the first electrode terminal of each of the units cells and the conductive member have a first polarity,
the second electrode terminal and the case of each of the unit cells have a second polarity, and
the first polarity is different than the second polarity.

6. The rechargeable battery module as claimed in claim 1 , wherein:
the unit cells are arranged in an arrangement direction, and
the insulation film includes
a first insulation film at a first side of the unit cells along the arrangement direction, and
a second insulation film at a second side of the unit cells, opposite the first side, along the arrangement direction, all the unit cells being arranged between the first and second insulation films.

7. A rechargeable battery module, comprising:
unit cells that are adjacent to each other and are arranged in an arrangement direction, each of the unit cells being configured as a rechargeable battery and including a first electrode terminal, a second electrode terminal, and a case that is electrically connected to the second electrode terminal;
an insulation film on at least one side among all sides of the unit cells, the insulation film including:
a first insulation film at a first side of the unit cells along the arrangement direction, and
a second insulation film at a second side of the unit cells, opposite the first side, along the arrangement direction, all the unit cells being arranged between the first and second insulation films; and

a conductive member on a side the insulation film, the conductive member being electrically connected to the first electrode terminal of at least one of the unit cells, and including:
a first conductive member on the first insulation film, the first insulation film insulating the first conductive member from a case of a unit cell closest to the first side of the unit cells, and
a second conductive member on the second insulation film, the second insulation film insulating the second conductive member from a case of a unit cell closest to the second side of the unit cells,

wherein the insulation film and the conductive member overlap each other, the insulation film being between the conductive member and at least one case of the unit cells to separate therebetween.

8. The rechargeable battery module as claimed in claim 7 , further comprising a first connection member and a second connection member, wherein:
the unit cells are connected to each other by busbars,
a first side of the first connection member is connected to the first conductive member and a second side of the first connection member is connected to the first electrode terminal of a first unit cell so that the first conductive member has a same polarity as the first electrode terminal of the first unit cell, and
a first side of the second connection member is connected to the second conductive member and a second side of the second connection member is connected to the first electrode terminal of a second unit cell so that the second conductive member has a same polarity as the first electrode terminal of the second unit cell.

9. The rechargeable battery module as claimed in claim 8 , wherein:
the first connection member is on a third side of the unit cells in a crossing direction crossing the arrangement direction, and
the second connection member is on a fourth side of the unit cells, opposite the third side, in the crossing direction.

10. The rechargeable battery module as claimed in claim 9 , further comprising:
a third insulation film between the first connection member and the unit cells at the third side; and
a fourth insulation film between the second connection member and the unit cells at the fourth side.

11. The rechargeable battery module as claimed in claim 9 , wherein:
the first connection member overlaps each of the unit cells on the third side, and
the second connection member overlaps each of the unit cells on the fourth side.

12. The rechargeable battery module as claimed in claim 9 , wherein:
the first connection member and the first conductive member are integrally formed, and
the second connection member and the second conductive member are integrally formed.

13. The rechargeable battery module as claimed in claim 8 , wherein the first insulation film is on the second unit cell and the second insulation film is on the first unit cell.

14. The rechargeable battery module as claimed in claim 8 , wherein:
a first final terminal is connected to the first electrode terminal of the first unit cell and the first connection member is connected to the first electrode terminal of the first unit cell through the first final terminal, and
a first busbar of the busbars is connected to the first electrode terminal of the second unit cell and the second connection member is connected to the first electrode terminal of the second unit cell through the first busbar.

15. The rechargeable battery mo

Assignees

• Samsung Sdi Co Ltd
• Bosch Gmbh Robert

Inventors

• Han Min-Yeol
• Byun Sang-Won

Classifications

• H01M50/22 Primary

  of the casings or racks · CPC title

• H01M50/507

  comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules · CPC title

• H01M50/209 Primary

  adapted for prismatic or rectangular cells (H01M50/216 takes precedence) · CPC title

• H01M50/51

  Connection only in series · CPC title

• H01M10/02

  Details (of electrodes H01M4/00; of non-active parts H01M50/00) · CPC title