Hiroki Muraoka

Title: Hiroki Muraoka: Innovator in Secondary Battery Technology

Introduction

Hiroki Muraoka is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of secondary battery technology, holding a total of 3 patents. His innovative designs focus on improving the efficiency and performance of batteries, which are crucial for various applications in modern technology.

Latest Patents

Muraoka's latest patents include a groundbreaking design for a secondary battery. This battery features an electrode assembly where strip-shaped positive and negative electrode plates are spirally wound with a strip-shaped separator interposed between them. The positive electrode plate includes a current collector and a material mixture layer, with an exposed portion of the positive electrode current collector at the initial winding side. This design enhances the connection of the positive electrode lead, improving overall battery performance.

Another notable patent involves a nonaqueous electrolyte secondary battery and its anode. This invention utilizes a graphite material capable of intercalating and de-intercalating lithium ions as the anode. The specific peak intensity ratio of the graphite material, measured through wide-angle X-ray diffraction, ensures that the edges of graphite crystals are adequately present on the electrode surface. This design facilitates smooth lithium intercalation, suppresses polarization during charging and discharging, and results in a battery with excellent high-rate discharging characteristics and minimal deterioration over repeated cycles.

Career Highlights

Throughout his career, Hiroki Muraoka has worked with notable companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these leading organizations has allowed him to refine his skills and contribute to advancements in battery technology.

Collaborations

Muraoka has collaborated with esteemed colleagues, including Shoichiro Watanabe and Shinji Kasamatsu. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Hiroki Muraoka's contributions to secondary battery technology exemplify his commitment to innovation and excellence. His patents reflect a deep understanding of materials and design, paving the way for advancements in energy storage solutions. His work continues to influence the industry and inspire future innovations.