硅藻生物质作为锂离子电池阳极生物二氧化硅和碳的联合来源。
Diatoms Biomass as a Joint Source of Biosilica and Carbon for Lithium-Ion Battery Anodes.
作者信息
Nowak Andrzej P, Sprynskyy Myroslav, Wojtczak Izabela, Trzciński Konrad, Wysocka Joanna, Szkoda Mariusz, Buszewski Bogusław, Lisowska-Oleksiak Anna
机构信息
Chemical Faculty, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland.
Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 11, 87-100 Toruń, Poland.
出版信息
Materials (Basel). 2020 Apr 3;13(7):1673. doi: 10.3390/ma13071673.
The biomass of one type cultivated diatoms (), being a source of 3D-stuctured biosilica and organic matter-the source of carbon, was thermally processed to become an electroactive material in a potential range adequate to become an anode in lithium ion batteries. Carbonized material was characterized by means of selected solid-state physics techniques (XRD, Raman, TGA). It was shown that the pyrolysis temperature (600 °C, 800 °C, 1000 °C) affected structural and electrochemical properties of the electrode material. Biomass carbonized at 600 °C exhibited the best electrochemical properties reaching a specific discharge capacity of 460 mAh g for the 70th cycle. Such a value indicates the possibility of usage of biosilica as an electrode material in energy storage applications.
一种培养硅藻（）的生物质，作为三维结构生物二氧化硅和碳源——有机物质的来源，经过热处理成为一种在足以成为锂离子电池阳极的电位范围内的电活性材料。通过选定的固态物理技术（XRD、拉曼、TGA）对碳化材料进行了表征。结果表明，热解温度（600℃、800℃、1000℃）影响电极材料的结构和电化学性能。在600℃碳化的生物质表现出最佳的电化学性能，在第70次循环时达到460 mAh g的比放电容量。这样的值表明了将生物二氧化硅用作储能应用中电极材料的可能性。
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