Nobuyuki Tokuda

Title: Nobuyuki Tokuda: Innovator in Redox Flow Battery Technology

Introduction

Nobuyuki Tokuda is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of energy storage, particularly in redox flow battery technology. With a total of 12 patents to his name, Tokuda's work has been instrumental in advancing battery efficiency and reliability.

Latest Patents

One of Tokuda's latest inventions is a cell stack for a redox flow battery. This innovative design provides high battery efficiencies with long-term reliability, eliminating the need for adhesive bonding between the bipolar plate and electrodes. The cell stack comprises a cell frame, electrodes, and a membrane stacked in layers. The cell frame includes a frame A and a bipolar plate arranged inside, with electrodes in close contact with the bipolar plate through a clamping force. This design ensures that the electrodes are compressed to a specific thickness, maintaining a repulsive force within a defined range.

Another significant patent is a method for operating a redox flow battery and its cell stack. This method allows for a more reliable assessment of the battery's charging state, stabilizing its output capacity. The operation involves an auxiliary cell within the cell stack that measures the charging rate of the electrolyte. By controlling the charge and discharge of the main cell based on the measured circuit voltage from the auxiliary cell, the overall performance of the battery is enhanced.

Career Highlights

Throughout his career, Nobuyuki Tokuda has worked with notable companies such as Sumitomo Electric Industries, Limited and The Kansai Electric Power Co., Inc. His experience in these organizations has contributed to his expertise in battery technology and innovation.

Collaborations

Tokuda has collaborated with esteemed colleagues, including Toshio Shigematsu and Takefumi Ito. These partnerships have fostered a collaborative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Nobuyuki Tokuda's contributions to redox flow battery technology exemplify his commitment to innovation in energy storage solutions. His patents and collaborative efforts continue to influence the industry, paving the way for more efficient and reliable battery systems.