Yoshihiro Kashihara

Title: **Yoshihiro Kashihara: Innovator in Nonaqueous Electrolyte Battery Technology**

Introduction

Yoshihiro Kashihara is a notable inventor based in Osaka, Japan, recognized for his contributions to battery technology. With three patents to his name, he has focused on improving the performance and safety of nonaqueous electrolyte secondary batteries. His innovative efforts have paved the way for advancements in energy storage solutions.

Latest Patents

Kashihara's latest patents include significant advancements in the design and manufacturing methods of nonaqueous electrolyte secondary batteries. One notable patent addresses the issue of specific capacity in graphite powders for negative electrodes. Traditional graphite powders have struggled to achieve capacities close to the theoretical value of 372 mAh per gram due to failures in high-temperature storage properties and rate capabilities. His invention involves the pulverization of flaky graphite particles with a specific crystallite size, yielding a powder with a mean particle size of 10 to 30 microns and an X-ray diffraction peak intensity ratio, enhancing energy density and discharge performance.

Another innovative patent introduced by Kashihara describes an explosion-proof nonaqueous electrolyte battery that features a current cutoff device. This design ensures that electrical connection is safely severed in the event of overcharging, which is crucial for maintaining safety, especially under elevated temperature conditions. The invention employs a pair of vent plates that mechanically couple to rupture when internal pressure exceeds a predetermined value, ensuring reliability and safety during operation.

Career Highlights

Kashihara is associated with Matsushita Electric Industrial Co., Ltd., a leading company in the electronics industry. His work there has significantly contributed to the development of advanced battery technologies. He continues to impact the field by focusing on innovative solutions that address pressing challenges in energy storage.

Collaborations

Throughout his career, Kashihara has collaborated with industry professionals, including eminent coworkers such as Katsuhiko Mori and Kunio Tsuruta. These collaborations have allowed for a fusion of ideas and expertise, resulting in the successful development of innovative technologies within the battery sector.

Conclusion

Yoshihiro Kashihara exemplifies the spirit of innovation in battery technology, with his patents leading the charge in energy efficiency and safety. His dedication to overcoming challenges in nonaqueous electrolyte batteries showcases the importance of continuous research and development in our quest for sustainable energy solutions.