Energy storage cell and energy storage module

Patent metadata

Field	Value
Publication number	US-10319961-B2
Application number	US-201514689598-A
Country	US
Kind code	B2
Filing date	Apr 17, 2015
Priority date	Oct 18, 2012
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

An energy storage cell includes an electrically conductive housing having at least one first, one second, and one third outer wall, with the first outer wall being located at a distance from the second outer wall, and with the third outer wall connecting the first and second outer walls to one another. At least one electrochemical element is disposed in the housing having one anodic connection and one cathodic connection. An anodic current tap on the first outer wall is connected to the anodic connection in an electrically conductive fashion, and a cathodic current tap is connected in an electrically conductive fashion to the first or third outer wall. The cathodic connection is connected in the interior of the housing to the second outer wall in an electrically and thermally conductive fashion.

First claim

What is claimed is:

1. An energy storage cell, comprising:
an electrically conductive housing having at least one first, one second, and one third outer wall, with the first outer wall being located at a distance from the second outer wall, and with the third outer wall connecting the first and second outer walls to one another;
at least one electrochemical element disposed in the housing, the electrochemical element having an anodic connection and a cathodic connection,
an anodic current tap disposed on the first outer wall, wherein the anodic connection extends through the first outer wall and is directly connected to the anodic current tap in an electrically conductive fashion, and
a cathodic current tap connected to the first or third outer wall in electrically conductive fashion, wherein
the cathodic connection is connected in an interior of the housing to the second outer wall in an electrically and thermally conductive manner.

2. The energy storage cell according to claim 1 , wherein the first outer wall of the housing is at least partially formed by a cap of the housing, with the anodic current tap being disposed on the cap.

3. The energy storage cell according to claim 2 , wherein the cathodic current tap is disposed on the cap.

4. The energy storage cell according to claim 1 , wherein the housing is configured in a prismatic fashion.

5. The energy storage cell according to claim 4 , wherein the prismatic fashion is cuboid.

6. The energy storage cell according to claim 1 , wherein the first outer wall is disposed parallel to the second outer wall.

7. The energy storage cell according to claim 1 , wherein an outer surface of the second outer wall is electrically insulated, via a film.

8. An energy storage module for a motor vehicle, comprising:
at least one energy storage cell, the at least one energy storage cell comprising;
an electrically conductive housing having at least one first, one second, and one third outer wall, with the first outer wall being located at a distance from the second outer wall, and with the third outer wall connecting the first and second outer walls to one another;
at least one electrochemical element disposed in the housing, the electrochemical element having an anodic connection and a cathodic connection;
an anodic current tap disposed on the first outer wall, wherein the anodic connection extends through the first outer wall and is directly connected to the anodic current tap in an electrically conductive fashion; and
a cathodic current tap connected to the first or third outer wall in electrically conductive fashion, wherein the cathodic connection is connected in an interior of the housing to the second outer wall in an electrically and thermally conductive manner; and
a cooling unit having a heat transfer surface, wherein the heat transfer surface rests against the second outer wall of the energy storage cell.

9. The energy storage module according to claim 8 , wherein a plurality of the energy storage cells are stacked together, with the heat transfer surface of the one cooling unit resting against the second outer walls of the plurality of energy storage cells.

10. The energy storage module according to claim 9 , wherein a fluid conduction device in the cooling unit conducts heat away from the heat transfer surface.

11. The energy storage module according to claim 8 , wherein a fluid conduction device in the cooling unit conducts heat away from the heat transfer surface.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Lustig Robert
• Engel Florian
• Vetter Jens
• Schleicher Andreas

Classifications

• H01M10/613 Primary

  Cooling or keeping cold · CPC title

• H01M50/264

  for cells or batteries, e.g. straps, tie rods or peripheral frames · CPC title

• H01M50/209

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

• H01M50/103

  prismatic or rectangular (H01M50/109, H01M50/11 take precedence) · CPC title

• H01M50/553

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