Battery cooling method and system

Patent metadata

Field	Value
Publication number	US-9406917-B2
Application number	US-201213542527-A
Country	US
Kind code	B2
Filing date	Jul 5, 2012
Priority date	Jul 7, 2011
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

An apparatus may store at least one object including at least one top end and at least one bottom end. The apparatus may include a container configured to store the at least one object and a pouch containing a liquid. The pouch may be configured to substantially cover the at least one top end of the at least one object when stored inside the container. The pouch may be configured to contact the at least one top end of the at least one object and to open when contacted by contents expelled from the at least one object due to thermal runaway.

First claim

What is claimed is:

1. An apparatus for storing at least one object including at least one top end and at least one bottom end, the apparatus comprising:
a container configured to store the at least one object;
a pouch containing a liquid and configured to substantially cover the at least one top end of the at least one object when stored inside the container, the pouch being configured to contact the at least one top end of the at least one object and to open when contacted by contents expelled from the at least one object due to thermal runaway, allowing the liquid to flow from the pouch in the direction of gravity above the at least one top end of the at least one object,
wherein the pouch includes at least one air pocket located between and separating the liquid and the at least one object.

2. The apparatus of claim 1 , wherein:
the at least one object is at least one battery; and
the container includes at least one side wall and a bottom surface defining a space configured to store the at least one battery such that the bottom surface of the container is configured to contact the at least one bottom end of the at least one battery, and the at least one top end of the at least one battery includes a positive terminal.

3. The apparatus of claim 2 , wherein an interior surface of the side wall and the bottom surface includes a waterproof layer.

4. The apparatus of claim 3 , wherein the waterproof layer is formed by a plasticized coating on the bottom surface of the container.

5. The apparatus of claim 3 , wherein the waterproof layer is formed by a tray located on the bottom surface of the container.

6. The apparatus of claim 1 , wherein the liquid includes water and a gel.

7. The apparatus of claim 6 , wherein the gel is formed from sodium polyacrylate.

8. The apparatus of claim 1 , wherein the liquid has a higher viscosity than water.

9. The apparatus of claim 1 , wherein the pouch is formed from plastic.

10. The apparatus of claim 1 , wherein the pouch is formed from a material having a melting point of approximately 180 to 400 degrees Fahrenheit.

11. The apparatus of claim 1 , wherein the pouch is formed from a material having a melting point of less than approximately 400 degrees Fahrenheit.

12. The apparatus of claim 1 , wherein the pouch includes a layer separating the liquid from the at least one top end of the at least one object, and the layer has a thickness of approximately 0.0005 inches to approximately 0.005 inches.

13. The apparatus of claim 1 , wherein the pouch is formed with plastic sheet material including the at least one air pocket.

14. The apparatus of claim 1 , further comprising:
a sensor configured to detect a temperature; and
a component configured to open the pouch when the sensor detects a temperature above a predetermined temperature.

15. The apparatus of claim 1 , further comprising:
a sensor configured to detect an amount of a substance; and
a component configured to open the pouch when the sensor detects an amount of the substance above a predetermined amount.

16. The apparatus of claim 15 , wherein the substance includes at least one of electrolyte, carbon dioxide, hydrogen gas, carbon monoxide, methane, ethane, and ethylene.

17. The apparatus of claim 1 , further comprising:
a sensor configured to detect a force directed to the sensor; and
a component configured to open the pouch when the sensor detects a force above a predetermined force.

18. The apparatus of claim 1 , wherein the pouch further contains a substance for increasing at least one of viscosity, evaporation time, cooling, a fire extinguishing characteristic, or a fire retardant characteristic of the liquid.

19. An apparatus for storing at least one object, the apparatus comprising:
a container configured to store the object;
a pouch containing a liquid and configured to substantially cover at least one side of the object when stored inside the container, the pouch being configured to contact the at least one side of the object and to open when contacted by contents expelled from the object due to thermal runaway, thereby allowing the liquid to flow from the pouch and contact the at least one side of the object,
wherein the pouch includes at least one air pocket located between and separating the liquid and the at least one object, and
wherein the air pocket is sealed at an edge of the pouch so air within the air pocket is not in contact with the liquid in the pouch.

Assignees

• Petzinger Mark Richard
• Federal Express Corp

Inventors

• Petzinger Mark Richard

Classifications

• A62C37/36

  an actuating signal being generated by a sensor separate from an outlet device · CPC title

• A62C37/14

  with frangible vessels · CPC title

• A62C37/11

  heat-sensitive · CPC title

• H01M10/486

  for measuring temperature · CPC title

• H01M50/271

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