Hideyuki Nagaoka

Title: Innovations by Hideyuki Nagaoka

Introduction

Hideyuki Nagaoka is a notable inventor based in Takehara, Japan. He has made significant contributions to the field of battery technology, particularly through his innovative work on zinc foil used in primary batteries. His inventions aim to enhance the performance and longevity of batteries, addressing common issues faced in the industry.

Latest Patents

Nagaoka holds a patent for a zinc foil, which serves as a negative electrode active material in batteries. This patent, titled "Zinc foil, primary battery negative electrode active material using same, and zinc foil production method," presents a zinc foil that reduces gas generation during long-term storage compared to conventional zinc foils. The zinc foil is primarily composed of zinc and includes bismuth, with a bismuth content ranging from 100 ppm to 10,000 ppm. The zinc crystal grain size is specified to be between 0.2 μm and 8 μm, while the bismuth crystal grain size is less than 1000 nm. Notably, the zinc foil is free of aluminum and lead, or if present, the aluminum content is limited to 1% or less, and the lead content to 200 ppm or less.

Career Highlights

Nagaoka is associated with Mitsui Mining & Smelting Co., Ltd., where he has been able to apply his expertise in materials science to develop innovative solutions for battery technology. His work has contributed to advancements in the efficiency and safety of battery systems.

Collaborations

He has collaborated with notable colleagues, including Hidetoshi Inoue and Tsuneyoshi Kamada, to further enhance the research and development of battery materials. Their combined efforts have led to significant improvements in the field.

Conclusion

Hideyuki Nagaoka's contributions to battery technology through his innovative zinc foil patent demonstrate his commitment to advancing energy storage solutions. His work not only addresses current challenges but also paves the way for future developments in the industry.