Keiichi Tsujioku

Title: Keiichi Tsujioku: Innovator in Battery Technology

Introduction

Keiichi Tsujioku is a notable inventor based in Sumoto, Japan. He has made significant contributions to the field of battery technology, holding a total of 2 patents. His work focuses on enhancing the performance and reliability of lithium secondary batteries and nonaqueous electrolyte batteries.

Latest Patents

Tsujioku's latest patents include a lithium secondary battery that features a negative electrode with lithium as an active material. The positive electrode comprises a boron-containing lithium-manganese composite oxide, which has a specific atomic ratio between boron and manganese. This innovative design ensures that the positive electrode active material minimally decomposes, maintaining low internal resistance even under high voltage conditions. Additionally, he has developed a nonaqueous electrolyte battery that utilizes aluminum for both the positive electrode supporting member and the external case. This design allows for efficient electrical connections and operates at a voltage range between 3.5 V and 5.0 V when charged.

Career Highlights

Tsujioku is currently employed at Sanyo Electric Co., Ltd., where he continues to advance battery technology. His work has been instrumental in developing reliable energy storage solutions that meet the demands of modern applications.

Collaborations

Throughout his career, Tsujioku has collaborated with esteemed colleagues such as Toyoji Machida and Mitsunori Hara. These partnerships have fostered innovation and contributed to the success of his projects.

Conclusion

Keiichi Tsujioku is a prominent figure in the field of battery technology, with a focus on creating reliable and efficient energy storage solutions. His contributions through patents and collaborations highlight his commitment to innovation in this critical area.