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1A microfluidic all-vanadium photoelectrochemical cell with a full-spectrum-responsive Ti2O3 photoanode for efficient solar energy storage显示文摘The all-vanadium photoelectrochemical cell is one of the promising solar energy storage technologies. However, conventional photoanodes surfer from low solar energy utilization efficiency as a result of narrow spectrum response and poor mass transfer.Hence, in this study, a microfluidic all-vanadium photoelectrochemical cell with a full-spectrum-responsive Ti2O3 photoanode was proposed for efficient solar energy storage. Experimental results indicated that the Ti2O3 photoanode responded to almost the full spectrum of sunlight and exhibited excellent photoresponse and operation stability, which facilitated efficient solar energy utilization. Additionally, the effects of the light intensity, vanadium ion concentration, and electrolyte flow rate were studied. It was found that increasing the light intensity and vanadium ion concentration and reducing the electrolyte flow rate promoted photoelectrochemical reactions and thus improved the solar energy storage performance. The obtained results demonstrate the feasibility and superiority of using Ti2O3 as the photoanode for a photoelectrochemical cell to achieve efficient solar energy storage.LIN YingYing FENG Hao CHEN Rong YE DingDing ZHANG Biao YU YouXu LI JinWang 2019Science China(Technological Sciences)2019,62,9:3
2软包锂硫电池研究进展显示文摘高理论容量和高能量密度使锂硫电池成为下一代储能系统具有竞争力的候选产品。然而,由于一些不可避免的障碍,实现锂硫电池的实际应用仍然是一个巨大的挑战。活性硫的低导率,正极的体积膨胀和多硫化锂的严重穿梭效应极大地限制了电池的容量,导致循环性能差。其中,软包锂硫电池具有质量轻、工艺简单、安全性高、能量密度高等特点,因此,对软包锂硫电池的研发具有重要意义。综述了软包锂硫电池在多硫化锂饱和析出以及金属锂负极快速失效等方面所面临的关键挑战,讨论了软包锂硫电池各主要部件的设计策略和前景,并结合课题组研究工作对石墨相氮化碳(g-C_(3)N_(4))材料在锂硫电池领域中的应用进行展望。秦小茜 吴桐 杨道通 贾铭勋 刘景海 2023内蒙古民族大学学报(自然科学版)2023,38,5:0
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