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2014 R&D 100 Winner
High-Performance Silicon Carbide-based Plug-In Hybrid Electric Vehicle Battery Charger Arkansas Power Electronics International Inc.’s High-Performance Silicon Carbide-based Plug-In Hybrid Electric Vehicle Battery Charger is a Level 2 isolated on-board vehicular battery charger that utilizes silicon carbide (SiC) power devices for application in electric vehicles (EVs) and plug-in hybrid electric vehicles (PHEVs). Developed in conjunction with Oak Ridge National Laboratory, Toyota Research Institute of North America, the Univ. of Arkansas and Cree Inc., the high-power (6-kW) battery charger is efficient (greater than 95%) and ultra-power dense (5.0 kW/L and 3.8 kW/kg). The heart of the charger is a high-frequency capable (greater than 1 MHz) multi-chip power module allowing for high junction temperature operation (greater than 200 C) which, when coupled with a high switching frequency, allows for an order-of-magnitude increase in power density, while boasting an increase in system efficiency over currently used technologies.

The system not only reduces the charging time of the PHEV battery bank, but eliminates the need for elaborate cooling systems, thus reducing moving parts in the vehicle and eventually reducing cost at the system level, as volumes increase. The all-SiC-based charger system is currently integrated in Toyota Prius vehicles, and has potential implementation in any PHEV/EV.

Technology
EV battery charger

Developers
Arkansas Power Electronics International Inc. (APEI)
Toyota Research Institute of North America
Univ. of Arkansas
Cree Inc.
ARPA-E, U.S. Dept. of Energy


Development Team

 
High-Performance Silicon Carbide-based Plug-In Hybrid Electric Vehicle Battery Charger development team (l-r): Kyosuke Miyagi (Toyota), Nance Ericson (ORNL), Laura Marlino (ORNL), Jae Lee (Toyota), Koji Shiozaki (Toyota), Tim Heidel (ARPA-E), Ty McNutt (APEI), Pawel Gradzki (ARPA-E), Bret Whitaker (APEI), Dave Grider (Cree) and Sei-Hyung Ryu (Cree).

 

 

 

 

 

 

 

 

 

 

 

 
High-Performance Silicon Carbide-based Plug-In Hybrid Electric Vehicle Battery Charger development team (l-r): Sonia Perez (U of A), Michael Glover (U of A), Matt Francis (U of A), Brandon Passmore (APEI), Bret Whitaker (APEI), Ty McNutt (APEI), Zach Cole (APEI), Florenda Tillotson (APEI), Brad McGee (APEI), Alexander Lostetter (APEI) and Shamim Ahmed (U of A).

 

 

 

 

 

 

 

 

 

 

 

The High-Performance Silicon Carbide-based Plug-In Hybrid Electric Vehicle Battery Charger Development Team
Bret Whitaker, Principal Developer, APEI
Adam Barkley, APEI
Chuck Britton, Oak Ridge National Laboratory
Zach Cole, APEI
Nance Ericson, Oak Ridge National Laboratory
Matt Francis, Univ. of Arkansas
Shane Frank, Oak Ridge National Laboratory
Mike Glover, Univ. of Arkansas
Pawel Gradzki, ARPA-E
Dave Grider, Cree Inc.
Tim Heidel, ARPA-E
Dillon Kaiser, Univ. of Arkansas
Alan Mantooth, Univ. of Arkansas
Laura Marlino, Oak Ridge National Laboratory
Ty McNutt, APEI
Mihir Mudholkar, Univ. of Arkansas
Ranjan Lamichhane, Univ. of Arkansas
Jae Lee, Toyota Research Institute of North America
Alex Lostetter, APEI
Brandon Passmore, APEI
Rajeev Ram, ARPA-E
Si-Hyung Ryu, Cree Inc.
Paul Shepherd, Univ. of Arkansas
Koji Shiozaki, Toyota Research Institute of North America
Florenda Tillotson, APEI
Javier Valle-Mayorga, Univ. of Arkansas

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