Shigetaka Nagamatsu

Title: Shigetaka Nagamatsu: Innovator in Battery Technology

Introduction

Shigetaka Nagamatsu is a prominent inventor based in Mishima, Japan. He has made significant contributions to the field of battery technology, holding a total of 14 patents. His innovative work focuses on enhancing the efficiency and performance of batteries, particularly in the realm of solid-state technology.

Latest Patents

One of Nagamatsu's latest patents is for a sulfide all-solid-state battery. This invention features an anode current collector with powerful adhesiveness that is resistant to sulfurization. The design includes a cathode layer, an anode layer, and a sulfide solid electrolyte layer positioned between them. The anode layer consists of an anode mixture layer and an electrolytic iron foil current collector, which has specific surface roughness parameters.

Another notable patent is for a stacked battery aimed at minimizing short circuit resistance among multiple cells. This stacked battery design includes several cells connected in parallel, each containing a cathode current collector, a cathode active material layer, a solid electrolyte layer, an anode active material layer, and an anode current collector. The design ensures that the contact resistance between the current collectors varies between surface-side and center-side cells, enhancing overall performance.

Career Highlights

Nagamatsu has worked with notable companies such as Toyota Motor Corporation and Toyo Kohan Co., Ltd. His experience in these organizations has contributed to his expertise in battery technology and innovation.

Collaborations

Throughout his career, Nagamatsu has collaborated with talented individuals, including Hajime Hasegawa and Yuki Matsushita. These partnerships have fostered a creative environment that has led to groundbreaking advancements in battery technology.

Conclusion

Shigetaka Nagamatsu is a key figure in the development of advanced battery technologies. His innovative patents and collaborations have significantly impacted the field, paving the way for future advancements in energy storage solutions.