淀粉基碳作为锂离子电池构建中一项重要特性的电化学稳定性
The Electrochemical Stability of Starch Carbon as an Important Property in the Construction of a Lithium-Ion Cell.
作者信息
Kurc Beata, Pigłowska Marita, Rymaniak Łukasz
机构信息
Institute of Chemistry and Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60965 Poznan, Poland.
出版信息
Entropy (Basel). 2021 Jul 5;23(7):861. doi: 10.3390/e23070861.
This paper shows use of starch-based carbon (CSC) and graphene as the anode electrode for lithium-ion cell. To describe electrochemical stability of the half-cell system and kinetic parameters of charging process in different temperatures, electrochemical impedance spectroscopy (EIS) measurement was adopted. It has been shown that smaller resistances are observed for CSC. Additionally, Bode plots show high electrochemical stability at higher temperatures. The activation energy for the SEI (solid-electrolyte interface) layer, charge transfer, and electrolyte were in the ranges of 24.06-25.33, 68.18-118.55, and 13.84-15.22 kJ mol, respectively. Moreover, the activation energy of most processes is smaller for CSC, which means that this electrode could serve as an eco-friendly biodegradable lithium-ion cell element.
本文展示了淀粉基碳（CSC）和石墨烯作为锂离子电池阳极电极的应用。为了描述半电池系统的电化学稳定性以及不同温度下充电过程的动力学参数，采用了电化学阻抗谱（EIS）测量。结果表明，CSC的电阻较小。此外，波特图显示在较高温度下具有高电化学稳定性。固体电解质界面（SEI）层、电荷转移和电解质的活化能分别在24.06 - 25.33、68.18 - 118.55和13.84 - 15.22 kJ/mol范围内。此外，CSC的大多数过程的活化能较小，这意味着该电极可作为一种环保的可生物降解锂离子电池元件。
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