Flow-Assisted Alkaline Battery
Technology Description:
City University of New York (CUNY) Energy Institute is working to tame dendrite formation and to enhance the lifetime of Manganese in order to create a long-lasting, fully rechargeable battery for grid-scale energy storage. Traditional consumer-grade disposable batteries are made of Zinc and Manganese, two inexpensive, abundant, and non-toxic metals, but these disposable batteries can only be used once. If they are recharged, the Zinc in the battery develops filaments called dendrites that grow haphazardly and disrupt battery performance, while the Manganese quickly loses its ability to store energy. CUNY Energy Institute is also working to reduce dendrite formation by pumping fluid through the battery, enabling researchers to fix the dendrites as they form. The team has already tested its Zinc battery through 3,000 recharge cycles (and counting). CUNY Energy Institute aims to demonstrate a better cycle life than lithium-ion batteries, which can be up to 20 times more expensive than Zinc-based batteries.
Potential Impact:
If successful, CUNY Energy Institute's project would put the U.S. on a path towards creating a smarter grid with low-cost batteries that are capable of storing enough electricity to power homes, cars, and cities.
Security:
A more efficient and reliable grid would be more resilient to potential disruptions.
Environment:
Electricity generation accounts for over 40% of U.S. carbon dioxide (CO2) emissions. Enabling large-scale contributions of wind and solar power for our electricity generation would result in a substantial decrease in CO2 emissions.
Economy:
Increases in the availability of wind and solar power would reduce fossil fuel demand, resulting in reduced fuel prices and more stable electricity rates.
Contact
ARPA-E Program Director:
Dr. John Lemmon
Project Contact:
Michael Adams
Press and General Inquiries Email:
ARPA-E-Comms@hq.doe.gov
Project Contact Email:
madams@che.ccny.cuny.edu
Related Projects
Release Date:
03/02/2010