Fuel cell system for charging an electric vehicle

Patent metadata

Field	Value
Publication number	US-9597966-B2
Application number	US-201314064783-A
Country	US
Kind code	B2
Filing date	Oct 28, 2013
Priority date	Feb 19, 2008
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

A method for charging electric vehicles includes receiving information regarding an electric vehicle. At least a portion of the information is received through a vehicle interface configured to place a battery of the electric vehicle into electrical communication with a fuel cell system. A charge is delivered from the fuel cell system to the battery of the electric vehicle through the vehicle interface without use of a direct current to alternating current (DC/AC) converter. The charge is delivered based at least in part on the information.

First claim

What is claimed is:

1. A charging station comprising:
a transactional unit configured to receive information regarding an electric vehicle;
a vehicle interface configured to
place a battery of the electric vehicle in electrical communication with a fuel cell system; and
deliver a charge from the fuel cell system to the battery of the electric vehicle; and

a waste heat unit configured to deliver heat to the electric vehicle during at least a portion of delivery of the charge, wherein the heat comprises waste heat from the fuel cell system comprising at least one of a heated gas or a heated liquid.

2. The charging station of claim 1 , further comprising the fuel cell system.

3. The charging station of claim 1 , wherein the waste heat is delivered to the electric vehicle based at least in part on a predetermined time at which a driver of the electric vehicle is expected to return to the electric vehicle.

4. The charging station of claim 1 , wherein the information includes a temperature rating of the battery, and further wherein the waste heat is delivered to the electric vehicle based at least in part on the temperature rating and at least in part on an ambient temperature.

5. The charging station of claim 1 , further comprising a cooling unit configured to cool the battery of the electric vehicle during at least a portion of the delivery of the charge.

6. The charging station of claim 1 , wherein the vehicle interface comprises a first winding of a transformer, and further wherein a second winding of the transformer is mounted on the electric vehicle.

7. The charging station of claim 6 , wherein the charge is delivered to the battery via inductive coupling between the first winding and the second winding.

8. The charging station of claim 1 , wherein the vehicle interface comprises a connector configured to connect to a rectifier mounted to the electric vehicle.

9. The charging station of claim 1 , wherein the information includes a destination and a desired time of arrival at the destination, and wherein the charging unit is configured to determine a charging schedule based at least in part on the destination and at least in part on the desired time.

10. The charging station of claim 9 , wherein the destination and the desired time of arrival are received from an electronic calendar of a driver of the electric vehicle.

11. The charging station of claim 9 , wherein the information further includes a route to the destination, wherein the charging schedule is determined based at least in part on the route, and further wherein the route is received from at least one of mapping software or a mapping website.

12. The charging station of claim 1 , wherein the waste heat from the fuel cell system comprises the heated gas.

13. The charging station of claim 12 , wherein the heated gas is obtained from an anode or cathode exhaust system of fuel cell system.

14. The charging station of claim 12 , wherein the heated gas is obtained from air heated by heat radiated off the fuel cells of fuel cell system.

15. The charging station of claim 12 , wherein the waste heat unit further comprises at least one fan or blower configured to provide the waste heat comprising the heated gas to the electric vehicle.

16. The charging station of claim 1 , wherein the waste heat from the fuel cell system comprises the heated liquid.

17. The charging station of claim 16 , wherein the heated liquid is obtained from a liquid heated by heat radiated off the fuel cells of fuel cell system.

Assignees

• Bloom Energy Corp

Inventors

• Sridhar K R
• Aaron Stuart
• Ballantine Arne
• Light Peter
• Reynolds Scott
• Srinivasan Ramesh
• Gurunathan Ranganathan

Classifications

• H01M10/44

  Methods for charging or discharging (circuits for charging H02J7/00) · CPC title

• H01M2250/20

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

• H01M8/0432

  Temperature; Ambient temperature · CPC title

• H01M10/654

  located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes · CPC title

• H01M10/635

  based on ambient temperature · CPC title