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Issue 3, 2020
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Available photo-charging integrated device constructed with dye-sensitized solar cells and lithium-ion battery

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Abstract

The development of self-chargeable lithium-ion batteries is of great significance for expanding the usable range of the lithium-ion battery and it has received intensive attention from numerous researchers. Solar cells can generate electricity from the sunlight and ensure sustainable access to electrical power for charging lithium-ion batteries. Herein, a photo-charging integrated device is constructed by combining four conventional dye-sensitized solar cells and a three-electrode hybrid lithium-ion battery, including a dye-sensitized TiO2 photo-anode, LiFePO4 electrode and metal lithium electrode. When the device is operated under solar illumination, DSSCs can match the charging voltage for the hybrid lithium-ion battery. The LiFePO4 electrode in the three-electrode device plays two roles, serving as a reversible redox agent for the regeneration of dye and as the cathode for lithium-ion batteries. The integrated device can effectively harvest solar energy and store it in situ within the hybrid lithium-ion battery through the photo-charging process. The proposed strategy is in favor of exploiting the small-sized, light-weight, self-chargeable battery and may have the potential to be employed as the power supply for miniaturized sensors and mobile devices.

Graphical abstract: Available photo-charging integrated device constructed with dye-sensitized solar cells and lithium-ion battery

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Article information


Submitted
30 Oct 2019
Accepted
29 Nov 2019
First published
02 Dec 2019

New J. Chem., 2020,44, 791-796
Article type
Paper

Available photo-charging integrated device constructed with dye-sensitized solar cells and lithium-ion battery

Y. Di, S. Jia, X. Yan, J. Liang and S. Hu, New J. Chem., 2020, 44, 791
DOI: 10.1039/C9NJ05367K

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