Xu Jiantie, Chen Yonghua, Dai Liming
Center of Advanced Science and Engineering for Carbon (Case4Carbon), Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, USA.
Nat Commun. 2015 Aug 27;6:8103. doi: 10.1038/ncomms9103.
Electric vehicles using lithium-ion battery pack(s) for propulsion have recently attracted a great deal of interest. The large-scale practical application of battery electric vehicles may not be realized unless lithium-ion batteries with self-charging suppliers will be developed. Solar cells offer an attractive option for directly photo-charging lithium-ion batteries. Here we demonstrate the use of perovskite solar cell packs with four single CH3NH3PbI3 based solar cells connected in series for directly photo-charging lithium-ion batteries assembled with a LiFePO4 cathode and a Li4Ti5O12 anode. Our device shows a high overall photo-electric conversion and storage efficiency of 7.80% and excellent cycling stability, which outperforms other reported lithium-ion batteries, lithium-air batteries, flow batteries and super-capacitors integrated with a photo-charging component. The newly developed self-chargeable units based on integrated perovskite solar cells and lithium-ion batteries hold promise for various potential applications.
使用锂离子电池组推进的电动汽车最近引起了广泛关注。除非开发出自充电电源的锂离子电池，否则电池电动汽车的大规模实际应用可能无法实现。太阳能电池为直接光充电锂离子电池提供了一个有吸引力的选择。在这里，我们展示了使用由四个基于CH3NH3PbI3的单太阳能电池串联连接的钙钛矿太阳能电池组，对由LiFePO4阴极和Li4Ti5O12阳极组装的锂离子电池进行直接光充电。我们的装置显示出7.80%的高总光电转换和存储效率以及出色的循环稳定性，优于其他报道的集成了光充电组件的锂离子电池、锂空气电池、液流电池和超级电容器。基于集成钙钛矿太阳能电池和锂离子电池新开发的自充电单元在各种潜在应用中具有前景。
