学  术  报  告

（2018-11）

Use of energy storage devices such as lithium ion batteries (LIBs) can help to mitigate the problem of intermittent photovoltaic (PV) power to achieve higher PV penetration into the electric grid. Also, the benefit of deployment of electric vehicles for energy sustainable future seems rather irrelevant unless they are charged using electricity generated from renewables. In addition, large scale practical applications of battery based electric vehicles is still challenging because of the inflexibility it has with the charging stations. All these issues can be addressed by use of solar cells as a viable energy source to charge lithium ion batteries. Here we demonstrate simple, efficient and cost- effective photo-charging design approach where the use of promising low cost solar cells such as perovskite solar cell or dye sensitized solar cell with the help of DC-DC power conversion can efficiently charge a Li₄Ti₅O₁₂-LiCoO₂ LIB.

Dr. Qiquan Qiao is Harold C Hohback professor and graduate coordinator in Electrical Engineering at South Dakota State University (SDSU). Current research focuses on biomedical sensors, agriculture sensors, polymer photovoltaics, dye-sensitized solar cells, Perovskite solar cells and lithium ion batteries.  He has published more than 150 peer reviewed papers in leading journals including Energy and Environmental Science, Journal of the American Chemical Society, Advanced Materials, Advanced Functional Materials, Advanced Energy Materials, Joule, and Nano Energy, etc. He has received 2016 Faculty Award for Global Engagement: Excellence in International Research, 2014 F O Butler Award for Excellence in Research at SDSU, 2010 US NSF CAREER, and 2009 Bergmann Memorial Award from the US-Israel Bi-national Science Foundation.

应用表面与胶体化学教育部重点实验室

应用表面与胶体化学创新引智基地

陕西省能源新材料与器件重点实验室

材料科学与工程学院