A thin-film LiNi_1/3Co_1/3Mn_1/3O₂ (NMC) material preferentially oriented to the platinum (Pt) layer, NMC (0 0 3) plane parallels to Pt (1 1 1) plane, was successfully formed on a single-crystal silicon substrate using pulsed laser deposition. A pouch-type thin-film cell (thin-film NMC cell) was prepared using the thin-film NMC on the substrate as a cathode. The resistance components of the prepared thin-film NMC cell were compared with those of a composite NMC cell using electrochemical impedance spectroscopy (EIS). Consequently, the charge transfer resistance (R₁) based on the state of charge in the thin-film cells showed large hysteresis between the charge and discharge processes, whereas those in the composite NMC cells almost coincided. Furthermore, a similar large hysteresis of R₁ was obtained in the composite NMC cells using a diluted electrolyte solution. The discordance between the thin-film cells and the composite cells is not inconsistent, by considering the difference of an effective surface area of each electrode exposed to an electrolyte. Thus, the obtained results indicate that the thin-film NMC cell having flat surface can be used as an ideal interface model to analyze the charge transfer mechanism at the cathode–electrolyte interface during charge and discharge in a standard electrolyte concentration.

薄膜 LiNi _1/3 Co _1/3 Mn _1/3 O ₂ (NMC) 材料优先取向于铂 (Pt) 层，NMC (0  0  3) 平面平行于 Pt (1  1  1) 平面，是使用脉冲激光沉积在单晶硅衬底上成功形成。使用基板上的薄膜NMC作为阴极制备袋型薄膜电池（薄膜NMC电池）。使用电化学阻抗谱 (EIS) 将制备的薄膜 NMC 电池的电阻分量与复合 NMC 电池的电阻分量进行比较。因此，电荷转移电阻 ( R ₁) 基于薄膜电池的充电状态在充电和放电过程之间显示出很大的滞后，而复合 NMC 电池中的那些几乎一致。此外，使用稀释的电解质溶液在复合 NMC 电池中获得了类似的大滞后R ₁。通过考虑暴露于电解质的每个电极的有效表面积的差异，薄膜电池和复合电池之间的不一致并不矛盾。因此，获得的结果表明，具有平坦表面的薄膜 NMC 电池可作为理想的界面模型来分析在标准电解质浓度下充放电过程中阴极 - 电解质界面处的电荷转移机制。