Comment on “Environmentally responsible fabrication of efficient perovskite solar cells from recycled car batteries” by Po-Yen Chen, Jifa Qi, Matthew T. Klug, Xiangnan Dang, Paula T. Hammond and Angela M. Belcher, Energy Environ. Sci., 2014
Abstract
A paper published in Energy and Environmental Science by Po-Yen Chen et al. reported on a new route for fabricating perovskite solar cells using “recycled car batteries” (spent lead acid batteries) as starting materials. Multiple lines of evidence show that it was a new lead acid battery and not a recycled one that was used to synthesize lead iodide perovskite materials in this work. As the components of electrodes are different between new batteries and spent ones, this fabricating method would not be applicable for use in recycled car batteries.
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