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Solar Rechargeable Batteries Based on Lead–Organohalide Electrolyte

Solar Rechargeable Batteries Based on Lead–Organohalide Electrolyte A dye‐sensitized solar cell (DSC) with in situ energy storage capacity is demonstrated using a lead–organohalide electrolyte CH3NH3I·PbCl2 (LOC) to replace the conventional I−/I3− electrolyte. The coupling of lead and iodine in one electrolyte creates a dual‐function rechargeable solar battery that combines the working processes of photoelectrochemical cells with electrochemical batteries. Optimization of the H+ concentration in the electrolyte leads to increased photocharging efficiency and storage. The power conversion efficiency of the LOC–DSC is 8.6% under one sun illumination (AM 1.5, 100 mW cm−2) as a DSC. When operating as a battery, Faraday efficiency can be achieved as high as 81.5% using a bromide‐based CH3NH3Br·PbBr2 (LOB) electrolyte in a DSC configuration. This new cell design suggests a means of combining photovoltaic energy conversion and electrical energy storage. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advanced Energy Materials Wiley

Solar Rechargeable Batteries Based on Lead–Organohalide Electrolyte

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References (39)

Publisher
Wiley
Copyright
Copyright © 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
1614-6832
eISSN
1614-6840
DOI
10.1002/aenm.201501418
Publisher site
See Article on Publisher Site

Abstract

A dye‐sensitized solar cell (DSC) with in situ energy storage capacity is demonstrated using a lead–organohalide electrolyte CH3NH3I·PbCl2 (LOC) to replace the conventional I−/I3− electrolyte. The coupling of lead and iodine in one electrolyte creates a dual‐function rechargeable solar battery that combines the working processes of photoelectrochemical cells with electrochemical batteries. Optimization of the H+ concentration in the electrolyte leads to increased photocharging efficiency and storage. The power conversion efficiency of the LOC–DSC is 8.6% under one sun illumination (AM 1.5, 100 mW cm−2) as a DSC. When operating as a battery, Faraday efficiency can be achieved as high as 81.5% using a bromide‐based CH3NH3Br·PbBr2 (LOB) electrolyte in a DSC configuration. This new cell design suggests a means of combining photovoltaic energy conversion and electrical energy storage.

Journal

Advanced Energy MaterialsWiley

Published: Dec 1, 2015

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