Development of a Self-Charging Lithium-Ion Battery Using Perovskite Solar Cells

Yeongbeom Kim; Hyungkee Seo; Eunbi Kim; Jaekwang Kim; Inseok Seo

doi:10.3390/nano10091705

Development of a Self-Charging Lithium-Ion Battery Using Perovskite Solar Cells

Nanomaterials (Basel). 2020 Aug 29;10(9):1705. doi: 10.3390/nano10091705.

Authors

Yeongbeom Kim¹, Hyungkee Seo², Eunbi Kim², Jaekwang Kim³, Inseok Seo¹

Affiliations

¹ Research Center for Advanced Materials Development (RCAMD), School of Advanced Materials Engineering, Jeonbuk National University, Baekje-daero 567, Jeonju 54896, Korea.
² School of Chemical Engineering, Jeonbuk National University, Baekje-daero 567, Jeonju 54896, Korea.
³ Department of Solar & Energy Engineering, Cheongju University, Cheongju 360-764, Chungbuk, Korea.

Abstract

This study demonstrates the use of perovskite solar cells for fabrication of self-charging lithium-ion batteries (LIBs). A LiFePO₄ (LFP) cathode and Li₄Ti₅O₁₂ (LTO) anode were used to fabricate a LIB. The surface morphologies of the LiFePO₄ and Li₄Ti₅O₁₂ powders were examined using field emission scanning electron microscopy. The structural properties of the two powders were investigated using X-ray diffraction. The electrochemical properties of the LiFePO₄-Li and Li₄Ti₅O₁₂-Li half cells and of the full cell were investigated. The LiFePO₄-Li₄Ti₅O₁₂ full cell showed an excellent Coulombic efficiency of 99.3% after 100 cycles. CH₃NH₃PBI₃ (MAPbI₃) perovskite solar cells (PSCs) were fabricated using a spin coating technique. A single PSC showed a power conversion efficiency of 12.95%. In order to develop a self-charging system for LIBs, four single PSCs connected in series were used as an LFP-LTO battery. The integrated PSC system showed a power conversion efficiency of 12.44%. The PSC-LIB coupled device showed excellent overall self-charging conversion and a storage efficiency of 9.25%.

Keywords: Li4Ti5O12; LiFePO4; lithium-ion batteries; perovskite solar cell; self-charging.

Abstract

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