Gabryelczyk Agnieszka, Yadav Sudesh, Swiderska-Mocek Agnieszka, Altaee Ali, Lota Grzegorz
Faculty of Chemical Technology, Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology Berdychowo 4 60-965 Poznan Poland
Centre for Green Technology, School of Civil and Environmental Engineering, University of Technology Sydney 15 Broadway NSW 2007 Australia.
RSC Adv. 2023 Aug 11;13(34):24162-24173. doi: 10.1039/d3ra03037g. eCollection 2023 Aug 4.
The presented study aims to explore the potential sources of common bio-wastes that could be successfully processed without any leftovers into materials for energy conversion and storage devices. We used chicken eggshells as an environmentally friendly precursor for electrode fillers in electrochemical capacitors (calcinated OS and OS) and anode materials in Li-ion batteries (carbonized EM and EM). Both groups of materials were obtained at two different temperatures to investigate the influence of their composition and properties on the electrochemical performance. Electrochemical capacitors with OS and OS substituted for 10 wt% of commercial activated carbon supplied similar capacitances, with OS stabilizing the long-term performance of the device. Also, both obtained anode materials are suitable for operation in Li-ion batteries, supplying a capacity of around 280 mA h g. Notably, EM is characterized by a well-developed structure, and as an anode, it exhibited better capacity retention of over 84%.
本研究旨在探索常见生物废弃物的潜在来源，这些废弃物能够被成功处理，且无任何剩余物，从而转化为用于能量转换和存储设备的材料。我们将鸡蛋壳用作电化学电容器中电极填料（煅烧后的OS和OS）以及锂离子电池阳极材料（碳化后的EM和EM）的环保前驱体。两组材料均在两个不同温度下获得，以研究其组成和性质对电化学性能的影响。用OS和OS替代10 wt%的商业活性炭制成的电化学电容器提供了相似的电容，其中OS稳定了器件的长期性能。此外，所获得的两种阳极材料均适用于锂离子电池，提供约280 mA h g的容量。值得注意的是，EM具有发达的结构，作为阳极，它表现出超过84%的更好的容量保持率。
