RADIANT HEAT PLATE FOR BATTERY CELL MODULE AND BATTERY CELL MODULE HAVING THE SAME

• US 20140045028A1
• Filed: 11/14/2012
• Published: 02/13/2014
• Est. Priority Date: 08/07/2012
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Moon, You Sung, Kwak, Jin Woo, Song, Kyong Hwa
• Granted Patent: US 9,196,934 B2
• Time in Patent Office: Days
• US Class Current: 429/120
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/653 characterised by electrically insulating or thermally conductive materials
• CPC Class Codes: H01M 10/6551 Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
• CPC Class Codes: H01M 10/6555 arranged between the cells
• CPC Class Codes: H01M 10/657 by electric or electromagnetic means
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 50/211 adapted for pouch cells
• CPC Class Codes: H01M 50/291 characterised by their shape
• CPC Class Codes: H01M 50/293 characterised by the material
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

Disclosed is a multifunctional radiant heat plate and a battery cell module having the same. The multifunctional radiant heat plate includes a heat conductive plate, a first and second composite sheet, at least one electroconductive metal layer, and electrodes. The heat conductive plate may be sandwiched between the first and second composite sheets. The at least one electroconductive metal layer is stacked on the composite sheet. Electrodes may be connected to the heat conductive plate and the metal layer, respectively. According to the disclosure, the heat conductive plate, the composite sheet, the electroconductive metal layer, and the electrodes are radiant heat interfacial components disposed between battery cells, and the composite sheet includes a piezoelectric material and a heat conductive filler dispersed and filled in a matrix resin.

Claims

1. A multifunctional radiant heat plate for a battery cell module, comprising:

a heat conductive plate;

a first and second composite sheet;

at least one electroconductive metal layer; and

one or more electrodes connected to the heat conductive plate and the electroconductive metal layer;

wherein the heat conductive plate is sandwiched between the first and second composite sheet, and the at least one electroconductive metal layer is disposed on an outer surface of the first and/or second composite sheet.

2. The multifunctional radiant heat plate of claim 1, wherein the first and second composite sheets comprise a piezoelectric material and a heat conductive filler.

7. The multifunctional radiant heat plate of claim 2, wherein the heat conductive filler is selected from the group consisting of graphite, carbon black, boron nitride, carbon fiber, silicon carbide, and aluminum nitride.

8. The multifunctional radiant heat plate of claim 2, wherein the heat conductive filler is one or two selected from the group consisting of graphite, carbon black, boron nitride, carbon fiber, silicon carbide, and aluminum nitride.

9. The multifunctional radiant heat plate of claim 2, wherein the heat conductive filler is selected from the group consisting of graphite, carbon black, boron nitride, carbon fiber, silicon carbide, aluminum nitride, and any combination thereof.

10. The multifunctional radiant heat plate of claim 2, wherein the piezoelectric material comprises polyvinylidene fluoride (PVDF).

12. The multifunctional radiant heat plate of claim 1, wherein the heat conductive plate has a thickness of about 1 mm or less, and the first and second composite sheets have a thickness of about 0.5 mm or less.

13. The multifunctional radiant heat plate of claim 1, wherein the first and second composite sheets are stacked on either side of the heat conductive plate such that an end portion of the heat conductive plate is exposed.

14. A battery cell module comprising a multifunctional radiant heat plate according to claim 1, wherein the multifunctional radiant heat plate is interposed between adjacent battery cells such that composite sheets on both surfaces of the multifunctional radiant heat plate contact one or more surfaces of the battery cells.

15. The battery cell module of claim 14, wherein the multifunctional radiant heat plate includes a heat conductive plate laterally protruding from the battery cells such that an end portion of the heat conductive plate is exposed.

3. The multifunctional radiant heat plate of claim 3, wherein the piezoelectric material and the heat conductive filler are dispersed in a matrix resin.

4. The multifunctional radiant heat plate of claim 3, wherein the composite sheet includes about 20 wt % to about 45 wt % piezoelectric material, about 20 wt % to about 45 wt % heat conductive filler, and about 35 wt % to about 60 wt % matrix resin.

5. The multifunctional radiant heat plate of claim 3, wherein the matrix resin includes a thermoplastic elastomer resin.

6. The multifunctional radiant heat plate of claim 5, wherein the thermoplastic elastomer resin is selected from the group consisting of a thermoplastic polyurethane (TPU), a styrene-ethylene-butylene-styrene (SEBS), and any combination thereof.

11. The multifunctional radiant heat plate of claim 3, wherein the piezoelectric material comprises polyvinylidene fluoride (PVDF).