An Electric Charge

Organization: Arkansas Power Electronics International Inc. (APEI), Toyota Research Institute of North America, University of Arkansas, Cree Inc., ARPA-E, U.S. Dept. of Energy, Oak Ridge National Laboratory (U.S. Dept. of Energy)
Co-Developer(s): 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 Gl
Year: 2014

2014 R&D 100 Winner 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

DevelopersArkansas Power Electronics International Inc. (APEI)Toyota Research Institute of North AmericaUniv. of ArkansasCree Inc.ARPA-E, U.S. Dept. of Energy

Development Team

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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).

 

 

 

 

 

 

 

 

 

 

 

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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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