3D-structured diatom biosilica mixed with conducting carbon black was investigated as an active electrode material for lithium-ion batteries. Diatom biosilica was obtained by cultivation of the selected diatom species under laboratory conditions. Several instrumental techniques (XRD, FTIR, Raman, SEM-EDX, TGA) were used to characterize the physicochemical properties of applied biosilica. It was evidenced that the prepared new composite material has a significant impact on the electrochemical properties of the electrode. The ratio 1:1 of biosilica and carbon black exhibited a specific capacity of 400 ± 9 mAh/g over 90 cycles. Such a ratio ensured proper electric contact between biosilica particles. The specificity of the faradaic process suggests that biosilica-based electrodes might be suitable in large-scale energy storage applications.
Authors
- dr hab. inż. Andrzej Nowak link open in new tab ,
- Myroslav Sprynskyy,
- Weronika Brzozowska,
- prof. dr hab. Anna Lisowska-Oleksiak link open in new tab
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1016/j.algal.2019.101538
- Category
- Publikacja w czasopiśmie
- Type
- artykuły w czasopismach
- Language
- angielski
- Publication year
- 2019
