将食用明胶和化妆品活性碳粉作为生产超级电容器的可生物降解和可替代材料

Rodica Negroiu, C. Marghescu, I. Bacis, M. Burcea, Andrei Drumea, L. Dinca, Ion Razvan Radulescu
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摘要

环境污染是目前危害人类健康的最令人担忧的因素之一。因此,人们正试图通过各种手段来减少污染。就目前的 RoHS 和 REACH 指令而言,最重要的污染源之一就是使用化学产品生产用于储存和发电的能源所造成的污染。因此,本文旨在开发由可生物降解材料制成的超级电容器,并研究其电气性能。在用于制造这些电极的材料中,活性炭被确定为主要材料,明胶、书法墨水和甘油的不同组合被用作粘合剂。电解质由基于明胶的水凝胶、20 wt%的氯化钠溶液和甘油组成。在本研究中,电解质具有凝胶的稠度,在制造的电池结构中具有隔膜的双重功能。由于其结构,电解质具有良好的机械性能,可以很容易地阻断两个电极之间的接触。用于生产超级电容器电池的大多数材料都是可互换材料,这些材料主要用于其他应用领域,如食品或化妆品行业,但也成功地用于本研究的调查。因此,所生产的超级电容器的比电容介于 101.46 F/g 和 233.26 F/g 之间,能量密度介于 3.52 Wh/kg 和 8.09 Wh/kg 之间,功率密度稍低,介于 66.66 W/kg 和 85.76 W/kg 之间。
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Edible Gelatin and Cosmetic Activated Carbon Powder as Biodegradable and Replaceable Materials in the Production of Supercapacitors
Environmental pollution is currently one of the most worrying factors that endangers human health. Therefore, attempts are being made to reduce it by various means. One of the most important sources of pollution in terms of the current RoHS and REACH directives is the pollution caused by the use of chemical products for the production of sources for the storage and generation of electricity. The aim of this article is therefore to develop supercapacitors made of biodegradable materials and to investigate their electrical performance. Among the materials used to make these electrodes, activated carbon was identified as the main material and different combinations of gelatin, calligraphy ink and glycerol were used as the binders. The electrolyte consists of a hydrogel based on gelatin, NaCl 20 wt% solution and glycerol. In the context of this research, the electrolyte, which has the consistency of a gel, fulfills the dual function of the separator in the structure of the manufactured cells. Due to its structure, the electrolyte has good mechanical properties and can easily block the contact between the two electrodes. Most of the materials used for the production of supercapacitor cells are interchangeable materials, which are mainly used in other application fields such as the food or cosmetics industries, but were also successfully used for the investigations carried out in this research. Thus, remarkable results were recorded regarding a specific capacitance between 101.46 F/g and 233.26 F/g and an energy density between 3.52 Wh/kg and 8.09 Wh/kg, with a slightly lower power density between 66.66 W/kg and 85.76 W/kg for the manufactured supercapacitors.
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