Kunihiro Watanabe

TL;DR: In this paper, the in situ electrochemical impedance spectroscopy (in situ EIS) in which the impedance spectra are measured simultaneously with the charge discharge (deintercalation) sequence of lithium-ion rechargeable batteries has been developed.

TL;DR: In this article, a new electrode model involving the fractal structure of activated carbon used as electrode material was proposed for an electric double layer capacitor (EDLC), where the branch pore structure of three sizes of cylindrical pores were related to macro, meso, and micro pore sizes.

TL;DR: In this article, an in situ electrochemical impedance spectroscopy was applied to the investigation of LiCoO2 electrode in ethylene and ethyl methyl carbonates electrolyte, and the electrode impedance was plotted on the three-dimensional diagram, which has real, imaginary and time axes, with measurements of the charge and discharge (intercalation) curves.

TL;DR: In this paper, a screen-printed algal biosensor was fabricated for evaluation of toxicity of chemicals, which was prepared by mixing unicellular microalga Chlorella vulgaris cells, carbon nanotubes and sodium alginate solution.

TL;DR: In this article, the authors applied the transmission line model (TLM) to the impedance analysis of complicated porous electrode with fractal structure, and proposed new equivalent circuit with TLM for three sizes of pores: macropore, mesopore and micropore.