16 Feb '12, 1pm

Lithium batteries could enhance solar energy

The research project, which looks into the use of lithium batteries as energy storage for solar photovoltaics (PV), was sponsored by REAPsystems and was led by MSc Sustainable Energy Technologies student, Yue Wu and his supervisors Dr Carlos Ponce de Leon, Professor Tom Markvart and Dr John Low. Wu says: “Lead acid batteries are traditionally the energy storage device used for most photovoltaic systems. However, as an energy storage device, lithium batteries, especially the LiFePO4 batteries we used, have more favourable characteristics.” Data was collected by connecting a lithium iron phosphate battery to a solar PV system attached to one of the University’s buildings, using a specifically designed battery management system supplied by REAPsystems. Wu adds: “The research showed that the lithium battery has an energy efficiency of 95% whereas the lead-acid batteries common...

Full article: http://www.renewableenergyfocus.com/view/23890/lithium-ba...

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