Channel for cooling at least one battery cell and method for forming a channel

Patent metadata

Field	Value
Publication number	US-12027685-B2
Application number	US-202217590861-A
Country	US
Kind code	B2
Filing date	Feb 2, 2022
Priority date	Feb 2, 2021
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

A channel for cooling at least one battery cell is set out. The channel includes a first housing frame and a second housing frame. The first housing frame is connected to the second housing frame and a partially fluid-tight region is formed between the first housing frame 133 and the second housing frame by the shape and material properties of the first housing frame and the second housing frame. The partially fluid-tight region forms the channel and the channel is arranged to allow a coolant to flow through the channel.

First claim

What is claimed is:

1. A channel for cooling at least one battery cell, comprising:
a first housing frame and a second housing frame, wherein the first housing frame is connected to the second housing frame,
a partially fluid-tight region formed and arranged between the first housing frame and the second housing frame by the shape and material properties of the first housing frame and the second housing frame, wherein the partially fluid-tight region form the channel,
at least one coolant distributor configured and arranged to facilitate coolant flow into the channel,
wherein the channel is configured and arranged to allow coolant to flow through the channel,
wherein the at least one coolant distributor comprises two coolant distributors wherein one of the two coolant distributors is configured and arranged to receive coolant from the channel, and
wherein the channel further comprises an opening comprising a cross section a sum of size of which is at least as large a cross section of the two coolant distributors.

2. The channel according to claim 1 , wherein:
the first housing frame is configured to enclose an interior space; and
the battery cell is arranged in the interior space and extends at least partially into the partially fluid-tight region.

3. The channel according to claim 1 , wherein the first housing frame comprises a battery cell holder configured and arranged to hold the battery cell in the first housing frame.

4. The channel according to claim 1 , wherein:
an end face of the battery cell projects into the partially fluid-tight region of the first housing frame; and
the second housing frame comprises a further battery cell arranged on an end face of the battery cell such that the coolant flows directly around the end face of the battery cell and an end face of the further battery cell.

5. The channel according to claim 4 , wherein a contact element is welded onto the end face of the battery cell, the contact element configured to establish an electrical contact between the battery cell and the further battery cell such that the coolant flows directly around the contact element.

6. The channel according to claim 1 , further comprising a plurality of battery cells arranged in the interior space of the first housing frame and wherein a dimensioning of the partially fluid-tight area between the first housing frame and the second housing frame as a channel is configured to enable a low temperature difference between the plurality of battery cells.

7. The channel according to claim 1 , wherein:
the channel further comprises a coolant inlet configured and arranged to enable the coolant to flow into the channel; and
the channel further comprises a coolant outlet arranged to allow the coolant to flow out of the channel.

8. The channel according to claim 1 , wherein the two coolant distributors are coolant manifolds.

9. A duct comprising:
a channel for cooling at least one battery cell, comprising a first housing frame and a second housing frame, wherein the first housing frame is connected to the second housing frame, a partially fluid-tight region formed and arranged between the first housing frame and the second housing frame by the shape and material properties of the first housing frame and the second housing frame, wherein the partially fluid-tight region form the channel, and
wherein the channel is configured and arranged to allow a coolant to flow through the channel, and
wherein the first housing frame comprises a coolant manifold arranged to allow the coolant to flow into the duct in a uniformly distributed manner; and
wherein the channel further comprises an opening comprising a cross section a sum of size of which is at least as large a cross section of the coolant manifold.

10. The duct according to claim 9 , further comprising a second coolant manifold configured and arranged to receive coolant from the channel.

11. A method of forming a channel comprising a first housing frame and a second housing frame, the method comprising the steps of:
connecting the first housing frame to the second housing frame;
forming a partially fluid-tight region between the first housing frame and the second housing frame by the shape and material properties of the first housing frame and the second housing frame such that the partially fluid-tight region form the channel:
arranging a coolant distributor in contact with the channel such that a coolant in the coolant distributor flows into the channel, and
wherein the channel is configured and arranged to allow the coolant to flow through
the channel; and
wherein the channel comprises an opening comprising a cross section a sum of size of which is at least as large as a cross section of the coolant distributor.

12. The method of claim 11 , wherein the step of connecting the first housing frame to the second housing frame further comprises the step of connecting a coolant inlet and a coolant outlet to the channel.

13. The method according to claim 11 , further comprising the steps of arranging another coolant distributor in contact with the channel such that fluid in the channel flows into the another coolant distributor.

14. The method according to claim 13 , wherein the coolant distributor is a coolant manifold.

Assignees

• Draexlmaier Lisa Gmbh

Inventors

• Hahn Alexander
• Steckel Michael
• Faltermeier Peter
• Seidl Stefan

Classifications

• Y02E60/10

  Energy storage using batteries · CPC title

• H01M2220/20

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

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title

• H01M50/528

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

• H01M50/249

  specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) · CPC title