In this study, a distributed constant-type equivalent circuit model for paper-based lactate biofuel cells (PBFCs) where the anode and cathode are formed on the same plane was constructed, and a method of determining parameter values in the equivalent circuit model was proposed. When PBFC were prepared and the electrochemical impedance of the entire cell was measured, the Nyquist diagram produced a spectrum due to the current line distribution. Parameters, such as charge transfer and solution resistances, were calculated from the obtained spectrum using theoretical impedance equations derived from the proposed equivalent circuit model proposed. In addition, the behavior of the current distribution in the battery was evaluated in detail by moving the reference electrode on and performing local electrochemical impedance spectroscopy at multiple points on the electrode. The models and methods proposed in this study are good for evaluating systems affected by distributed current lines, such as flat batteries, and for determining cell design, electrode areas, and arrangements.

中文翻译：

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纸基乳酸生物燃料电池的分布常数等效电路模型和参数估计方法


本研究构建了阳极和阴极形成在同一平面上的纸基乳酸生物燃料电池（PBFC）的分布常数型等效电路模型，并提出了确定等效电路模型中参数值的方法。 。当制备PBFC并测量整个电池的电化学阻抗时，奈奎斯特图由于电流线分布而产生频谱。使用从所提出的等效电路模型导出的理论阻抗方程，根据获得的频谱计算参数，例如电荷转移和溶液电阻。此外，通过移动参比电极并在电极上的多个点进行局部电化学阻抗谱，详细评估了电池中电流分布的行为。本研究中提出的模型和方法非常适合评估受分布式电流线影响的系统（例如扁平电池），以及确定电池设计、电极面积和布置。