Battery having Thermal Plate with Curved Channel Divider

Patent metadata

Field	Value
Publication number	US-2016372804-A1
Application number	US-201414901983-A
Country	US
Kind code	A1
Filing date	Aug 1, 2014
Priority date	Aug 2, 2013
Publication date	Dec 22, 2016
Grant date	—

Abstract

A battery assembly in one embodiment includes a battery case defining a first plurality of battery compartments and a second plurality of battery compartments, and a thermal plate defined between the first plurality of battery compartments and the second plurality of battery compartments, the thermal plate including a channel divider dividing the thermal plate into an inlet channel portion located between the first plurality of battery compartments and the second plurality of battery compartments, and an outlet channel portion located between the first plurality of battery compartments and the second plurality of battery compartments, wherein the channel divider includes a first divider portion which extends substantially parallel to outer sides of the inlet channel and the outlet channel, and a second divider portion which curves toward the outer side of the inlet channel portion thereby narrowing the inlet channel portion.

First claim

1 . A battery assembly comprising:
a battery case defining a first plurality of battery compartments and a second plurality of battery compartments; and a thermal plate defined between the first plurality of battery compartments and the second plurality of battery compartments, the thermal plate including a channel divider dividing the thermal plate into an inlet channel portion located between the first plurality of battery compartments and the second plurality of battery compartments, and an outlet channel portion located between the first plurality of battery compartments and the second plurality of battery compartments, wherein the channel divider includes a first divider portion which extends substantially parallel to outer sides of the inlet channel and the outlet channel, and a second divider portion which curves toward the outer side of the inlet channel portion thereby narrowing the inlet channel portion.

2 . The battery assembly of claim 1 , wherein the battery case comprises:
a first battery container defining the first plurality of battery compartments; and a second battery container defining the second plurality of battery compartments.

3 . The battery assembly of claim 2 , wherein the first battery container and the second battery container define the thermal plate.

4 . The battery assembly of claim 3 , wherein:
the first battery container includes a first flange portion; the second battery container includes a second flange portion; and the first and second flange portions define the outer sides of the inlet channel and the outlet channel.

5 . The battery assembly of claim 4 , wherein:
the first battery container includes a third flange portion; the second battery container includes a fourth flange portion; and the third and fourth flange portions define the channel divider.

6 . The battery assembly of claim 5 , wherein:
the first divider portion extends about 75-85% of a total length of the inlet channel portion; and the second divider portion extends about 10-20% of a total length of the inlet channel portion.

7 . The battery assembly of claim 6 , wherein:
the first divider portion extends about 80% of a total length of the inlet channel portion; and the second divider portion extends about 15% of a total length of the inlet channel portion.

8 . The battery system of claim 6 , wherein the second divider portion reduces the width of the inlet channel portion by about 25%.

9 . The battery system of claim 8 , wherein a height to width ratio for the inlet channel portion is more than 1:10 along the first divider portion.

10 . The battery system of claim 8 , wherein the height to width ratio for the inlet channel portion is about 1:16 along the first divider portion.

11 . A battery assembly comprising:
a first battery container defining a first plurality of battery compartments; a second battery container defining a second plurality of battery compartments; and a thermal plate defined by the first battery container and the second battery container, the thermal plate including a channel divider located at an inner portion of the thermal plate and dividing the thermal plate into an inlet channel portion located between the first plurality of battery compartments and the second plurality of battery compartments, and an outlet channel portion located between the first plurality of battery compartments and the second plurality of battery compartments, wherein the channel divider includes a first divider portion which extends substantially parallel to outer sides of the inlet channel and the outlet channel, and a second divider portion which curves toward the outer side of the inlet channel portion thereby narrowing the inlet channel portion.

12 . The battery assembly of claim 11 , wherein the first battery container and the second battery container define the channel divider.

13 . The battery assembly of claim 12 , wherein:
the first battery container includes a first flange portion; the second battery container includes a second flange portion; and the first and second flange portions define the outer sides of the inlet channel and the outlet channel.

14 . The battery assembly of claim 13 , wherein:
the first battery container includes a third flange portion; the second battery container includes a fourth flange portion; and the third and fourth flange portions define the channel divider.

15 . The battery assembly of claim 14 , wherein:
the first divider portion extends about 75-85% of a total length of the inlet channel portion; and the second divider portion extends about 10-20% of a total length of the inlet channel portion.

16 . The battery assembly of claim 15 , wherein:
the first divider portion extends about 80% of a total length of the inlet channel portion; and the second divider portion extends about 15% of a total length of the inlet channel portion.

17 . The battery system of claim 15 , wherein the second divider portion reduces the width of the inlet channel portion by about 25%.

18 . The battery system of claim 17 , wherein a height to width ratio for the inlet channel portion is more than 1:10 along the first divider portion.

19 . The battery system of claim 17 , wherein the height to width ratio for the inlet channel portion is about 1:16 along the first divider portion.

Assignees

• Koch Robert
• Potti Babu
• Holz Jeffrey
• Bosch Gmbh Robert

Inventors

• Koch Robert
• Potti Babu
• Buckholz Jeffrey

Classifications

• H01M50/271

  Lids or covers for the racks or secondary casings · CPC title

• H01M50/209

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

• H01M10/647

  Prismatic or flat cells, e.g. pouch cells · CPC title

• H01M2/1077

  Electricity · mapped topic

• H01M10/6557 Primary

  arranged between the cells · CPC title