Tomoyoshi Matsushima

Title: Innovations by Tomoyoshi Matsushima

Introduction

Tomoyoshi Matsushima is a notable inventor based in Ageo, Japan. He has made significant contributions to the field of battery technology, particularly in the development of negative electrodes for nonaqueous secondary batteries. With a total of 3 patents to his name, Matsushima's work is recognized for its innovative approaches to enhancing battery performance.

Latest Patents

Matsushima's latest patents focus on advancements in negative electrodes for nonaqueous secondary batteries. One of his patents describes a negative electrode that features an active material layer containing active material particles. These particles are coated with a metallic material that has a low capability of lithium compound formation. The design includes voids between the metallic material-coated particles, with a void fraction ranging from 15% to 45%. The active material particles are preferably silicon-based, and the layer contains 1% to 3% by weight of an electroconductive carbon material based on the weight of the active material particles.

Another patent by Matsushima also addresses the negative electrode for nonaqueous secondary batteries. This design incorporates an active material layer with metallic material deposited among the particles through electroplating. The electrode features numerous holes extending through the thickness of the active material layer, enhancing its performance. The holes have an opening area ratio of 0.3% to 30%, and at least one of the current collecting layers has a thickness ranging from 0.3 to 10 micrometers.

Career Highlights

Tomoyoshi Matsushima is currently employed at Mitsui Mining & Smelting Company, Ltd., where he continues to innovate in the field of battery technology. His work has contributed to advancements that may lead to more efficient and effective energy storage solutions.

Collaborations

Matsushima collaborates with esteemed colleagues such as Kiyotaka Yasuda and Hitohiko Honda, who share his commitment to advancing battery technology.

Conclusion

Tomoyoshi Matsushima's contributions to the field of nonaqueous secondary batteries highlight his innovative spirit and dedication to improving energy storage solutions. His patents reflect a deep understanding of material science and engineering, positioning him as a key figure in battery technology advancements.