Kazuhiro Hamada

Title: Kazuhiro Hamada: Innovator in Lithium-Ion Battery Technology

Introduction

Kazuhiro Hamada is a notable inventor based in Soka, Japan. He has made significant contributions to the field of lithium-ion battery technology. His innovative approach has led to advancements that enhance the performance and efficiency of these essential energy storage systems.

Latest Patents

Hamada holds a patent for a treatment process for a positive electrode active material for lithium-ion secondary batteries. This process involves the removal of lithium compounds, such as LiCO and LiOH, that are unsuitable for use in positive electrode materials. The method ensures that the discharge capacity and average discharge voltage of the secondary battery remain stable, while also preventing gelation caused by cleaning treatments. The positive electrode active material is treated with a cleaning fluid containing NH, followed by solid-liquid separation and calcination at temperatures between 600 to 700°C in an oxygen atmosphere. The cleaning fluid used has a conductivity of 11.6 mS/cm or less and can be reused, making the process both efficient and sustainable.

Career Highlights

Hamada is associated with Nihonkagakusangyo Co., Ltd., where he continues to develop innovative solutions in battery technology. His work has been instrumental in advancing the capabilities of lithium-ion batteries, which are crucial for various applications, including consumer electronics and electric vehicles.

Collaborations

Hamada has collaborated with notable colleagues, including Yoshito Sugibuchi and Hajime Kashima. Their combined expertise has contributed to the successful development of new technologies in the field.

Conclusion

Kazuhiro Hamada's contributions to lithium-ion battery technology exemplify the importance of innovation in energy storage solutions. His patented processes not only enhance battery performance but also promote sustainability in manufacturing practices.