BATTERY COOLING PLATE DESIGN WITH DISCRETE CHANNELS

• US 20090258289A1
• Filed: 03/13/2009
• Published: 10/15/2009
• Est. Priority Date: 04/09/2008
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations Incorporated (Motors Liquidation Co. GUC Trust)
• Inventors: Spencer, Steven J., Spacher, Paul F., Weber, Derek R.
• Granted Patent: US 7,851,080 B2
• Time in Patent Office: Days
• US Class Current: 429/120
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/647 Prismatic or flat cells, e.g. pouch cells
• CPC Class Codes: H01M 10/651 characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations
• CPC Class Codes: H01M 10/652 characterised by gradients for achieving a desired temperature gradient H01M10/617
• CPC Class Codes: H01M 10/6557 arranged between the cells
• CPC Class Codes: H01M 10/6567 Liquids
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

One exemplary embodiment including a battery cooling plate has discrete channels. In one exemplary embodiment each of the channels has a width ranging from about 1 mm to about 5 mm. In another exemplary embodiment the battery cooling plate includes a first cooling channel having a flow path generally in a U shape, and a plurality of other channels each having a generally U-shaped flow path, and wherein the other flow channels are in a nested position with respect to the first flow channel. In another exemplary embodiment the battery cooling plate a battery cooling plate includes a serpentine shaped cooling flow path formed therein, the cooling flow path including a first cooling segment and an adjacent upstream second cooling segment, wherein the second cooling segment includes at least a first cooling channel and a second cooling channel and at least a first land interposed between the first cooling channel and second cooling channel, and wherein the second cooling segment has at least one more land and one more channel than the first cooling segment.

Claims

1. A product comprising a battery cooling plate having a serpentine shaped cooling flow path formed therein, the cooling flow path including a first cooling segment and an adjacent upstream second cooling segment, and a third cooling segment upstream of the second cooling segment, wherein the second cooling segment comprises at least a first cooling channel and a second cooling channel and at least a first land interposed between the first cooling channel and second cooling channel, and wherein the second cooling segment has at least one more land and one more channel than the first cooling segment, and wherein the third cooling segment has at least one more land and one more channel than the second cooling segment.

2. A product comprising a battery cooling plate comprising a first substrate, and a plurality of cooling channels formed out of the first substrate, the cooling channels including a bottom wall, and a first side wall and a second side wall each extending at an obtuse angle from the bottom wall, and wherein each of the channels has a width ranging from about 1 mm to about 5 mm.

3. A product comprising a battery cooling plate and a first cooling channel having a flow path generally in a U shape, and a plurality of other channels each having a generally U-shaped flow path, and wherein the other flow channels are in a nested position with respect to the first flow channel.