Yuko Oka

Title: Yuko Oka: Innovator in Lithium-Manganese-Based Composite Oxides

Introduction

Yuko Oka is a prominent inventor based in Ikeda, Japan. She has made significant contributions to the field of materials science, particularly in the development of lithium-manganese-based composite oxides. Her innovative work has the potential to enhance the performance of battery technologies.

Latest Patents

Yuko Oka holds a patent for a lithium-manganese-based composite oxide containing titanium and nickel. The invention is represented by the compositional formula: Li(MnNiTi)O, where 0 < x ≤ 0.33, 0.05 < m < 0.3, and 0.3 < n < 0.5. This composite oxide features a crystal phase of layered rock-salt type structure. It is a novel material capable of maintaining an average discharge voltage of 3 V or more over long charge/discharge cycles. Additionally, it provides a discharge capacity equal to or higher than those of lithium-cobalt-oxide-based positive electrode materials. The composite oxide can be prepared using inexpensive starting materials that are less limited as natural resources, while exhibiting improved charge/discharge characteristics over known low-cost positive electrode materials.

Career Highlights

Yuko Oka is affiliated with the National Institute of Advanced Industrial Science and Technology, where she continues to advance her research in battery materials. Her work has garnered attention for its practical applications in energy storage solutions.

Collaborations

Yuko Oka has collaborated with notable colleagues, including Mitsuharu Tabuchi and Tomonari Takeuchi. These collaborations have contributed to the advancement of her research and the development of innovative materials.

Conclusion

Yuko Oka's contributions to the field of lithium-manganese-based composite oxides highlight her role as a leading inventor in materials science. Her innovative patent demonstrates the potential for improved battery technologies, paving the way for future advancements in energy storage.