Company Filing History:
Years Active: 2000-2005
Title: Innovations by Akiko Ishida: Pioneering Lithium and Polymer Batteries
Introduction
Akiko Ishida, an accomplished inventor based in Moriguchi, Japan, has made significant contributions in the field of battery technology. With a total of three patents to her name, she has focused her efforts on enhancing the performance and efficiency of lithium secondary and polymer electrolyte batteries.
Latest Patents
Among her latest innovations is a lithium secondary battery designed to provide high capacity and excellent current characteristics. This invention features a negative electrode consisting of AlO particles, which do not participate in the charge-and-discharge reactions of the battery. The incorporation of these ceramic particles improves the ion conductivity within the electrode, thereby reducing the internal resistance and allowing for higher capacity during high-rate discharge.
Another remarkable invention is her polymer electrolyte battery that offers high capacity density. This battery design includes a layer of active material mixture containing a polymer with carefully regulated porosity and polymer content. The unitary laminated battery sheet consists of a negative electrode flanked by positive electrodes, with a porous polymer separator on both sides. The electrodes incorporate a current collector and an active material mixture layer, and the polymer retains a nonaqueous electrolyte. The optimal porosity of the separator and the electrode mixture ranges from 30% to 60%, with the polymer content specified between 5 to 10 wt % for the positive electrode and 7 to 16 wt % for the negative electrode.
Career Highlights
Akiko Ishida's career is marked by her impactful innovations at Matsushita Electric Industrial Co., Ltd., a leading company in the electronics and battery manufacturing industry. Her dedication and technical prowess have led to advancements in energy storage solutions that are crucial in today's technology-driven world.
Collaborations
Throughout her career, Ishida has collaborated with esteemed colleagues, including Ken Nishimura and Masahiko Ogawa. These partnerships have fostered an environment of innovation and creativity, further strengthening the development of advanced battery technologies.
Conclusion
Akiko Ishida's work in battery innovation exemplifies the role of inventors in shaping sustainable energy solutions. Her patents in lithium secondary and polymer electrolyte batteries not only enhance performance but also contribute to the broader mission of developing efficient energy storage systems. As technology continues to evolve, Ishida's contributions will undoubtedly play a significant role in the future of energy solutions.