High-voltage storage device

Patent metadata

Field	Value
Publication number	US-9620750-B2
Application number	US-201214357517-A
Country	US
Kind code	B2
Filing date	Nov 23, 2012
Priority date	Nov 24, 2011
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

The present invention refers to a high-voltage battery for power supply, particularly of an automotive vehicle, comprising: an energy storage module with a plurality of electrochemical storage cells and a wall accommodating the plurality of storage cells, each storage cell comprising at least two electric connection terminals, and an upper part for contacting and covering the connection terminals, said upper part overlapping the wall in a contactless manner, so that a gap remains relative to the storage cells.

First claim

The invention claimed is:

1. A high-voltage storage device for power supply, particularly of an automotive vehicle, comprising:
an energy storage module with a plurality of electrochemical storage cells and a wall
accommodating the plurality of storage cells, each storage cell comprising at least two electric connection terminals, and
an upper part for contacting and covering the connection terminals,
said upper part overlapping the wall in a contactless manner, so that a gap remains relative to the storage cells
wherein the wall comprises an inwardly offset shoulder overlapped by the upper part,
wherein the shoulder comprises a first portion which extends inwards perpendicular to the wall, and a second portion of the shoulder is positioned at the end of said first portion, said second portion extends in parallel with the wall and perpendicular to the first portion, wherein the gap is formed between the shoulder and the upper part, so that a gas generated in the storage cells is able to exit, and
wherein a labyrinth structure is formed between the upper part and the wall.

2. The high-voltage storage device according to claim 1 , wherein the storage cells are prismatic storage cells which, while being stacked into at least one row, are arranged one after the other and are clamped between two end plates via tie rods, with the end plates and the tie rods forming the wall.

3. The high-voltage storage device according to claim 1 , wherein the smallest gap between upper part and wall is at least 1 mm, particularly at least 2 mm.

4. The high-voltage storage device according to claim 1 , wherein the upper part comprises a carrier plate with a plurality of cell connectors for contacting the connection terminals and a lid mounted on the carrier plate.

5. The high-voltage storage device according to claim 4 , wherein the carrier plate overlaps the wall in a contactless manner.

6. The high-voltage storage device according to claim 4 , wherein the lid completely covers the carrier plate.

7. The high-voltage storage device according to claim 1 , wherein the connection terminals of all storage cells are oriented towards a connection surface.

8. The high-voltage storage device according to claim 1 , wherein the upper part contacts and covers the connection terminals of all storage cells.

9. The high-voltage storage device according to claim 1 , wherein the upper part overlaps the wall over the whole circumference.

Assignees

• Bayerische Motoren Werke Ag
• Diehl Metal Applications Gmbh
• Bayerische Motoren Werke Ag

Inventors

• Goesmann Hubertus
• Born Christoph
• Heck Harald
• Warmuth Frank

Classifications

• B60L58/21 Primary

  having the same nominal voltage · CPC title

• H01M50/591

  Covers · CPC title

• H01M50/588

  outside the batteries, e.g. incorrect connections of terminals or busbars · CPC title

• H01M50/507

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

• H01M50/209

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