“Salinity energy” stored as the salinity difference between sea water and fresh water is a large scale renewable resource that can be harvested and converted to electricity directly. In this study, a high performance membrane-less Na ion battery-based “capacitive mixing” cell (CAPMIX) was fabricated to extract the entropy energy from the water salinity gradient. The CAPMIX used copper hexacyanoferrate and silver as the electrodes in an aqueous electrolyte. A maximum working voltage of 0.65 V and a maximum power output of 2798 μW g−1 was obtained, which is a significant improvement over previous reported results. This energy harvesting process does not seem to play any significant role in the natural process and no deleterious substances were added to the output stream; it is a completely environmentally friendly power source. The entropy energy extracting battery represents a novel electrochemical device and is also a promising technology in the development of renewable energy production.
“盐度能”是海
水和淡
水之间的盐度差,是一种大规模的可再生资源,可以直接收集并转化为电能。在这项研究中,研究人员制造了一种高性能的无隔膜
钠离子电池“电容混合”电池(C
APMIX),用于从
水盐度梯度中提取熵能。C
APMIX在
水溶液电解质中以六
氰合
铁酸
铜和
银作为电极。该电池的最大工作电压为0.65 V,最大功率输出为2798 μW g-1,比之前报道的结果有了显著提高。这种能量收集过程在自然过程中似乎没有发挥任何重要作用,也没有向输出流中添加任何有害物质;它是一种完全环保的电源。熵能提取电池是一种新型的电
化学装置,也是可再生能源生产领域的一项很有前景的技术。