Kim Yeongbeom, Seo Hyungkee, Kim Eunbi, Kim Jaekwang, Seo Inseok
Research Center for Advanced Materials Development (RCAMD), School of Advanced Materials Engineering, Jeonbuk National University, Baekje-daero 567, Jeonju 54896, Korea.
School of Chemical Engineering, Jeonbuk National University, Baekje-daero 567, Jeonju 54896, Korea.
Nanomaterials (Basel). 2020 Aug 29;10(9):1705. doi: 10.3390/nano10091705.
This study demonstrates the use of perovskite solar cells for fabrication of self-charging lithium-ion batteries (LIBs). A LiFePO (LFP) cathode and LiTiO (LTO) anode were used to fabricate a LIB. The surface morphologies of the LiFePO and LiTiO 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 LiFePO-Li and LiTiO-Li half cells and of the full cell were investigated. The LiFePO-LiTiO full cell showed an excellent Coulombic efficiency of 99.3% after 100 cycles. CHNHPBI (MAPbI) 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%.
本研究展示了钙钛矿太阳能电池在自充电锂离子电池(LIBs)制造中的应用。使用磷酸铁锂(LFP)阴极和钛酸锂(LTO)阳极制造了一个LIB。使用场发射扫描电子显微镜检查了磷酸铁锂和钛酸锂粉末的表面形貌。使用X射线衍射研究了这两种粉末的结构特性。研究了磷酸铁锂-锂和钛酸锂-锂半电池以及全电池的电化学性能。经过100次循环后,磷酸铁锂-钛酸锂全电池显示出99.3%的优异库仑效率。采用旋涂技术制备了CHNHPBI(MAPbI)钙钛矿太阳能电池(PSCs)。单个PSC的功率转换效率为12.95%。为了开发用于LIBs的自充电系统,将四个串联的单个PSC用作LFP-LTO电池。集成的PSC系统显示出12.44%的功率转换效率。PSC-LIB耦合器件显示出优异的整体自充电转换和9.25%的存储效率。