Aisaku Nagai

Title: **Aisaku Nagai: A Pioneer in Polymer Electrolyte Innovations**

Introduction

Aisaku Nagai, based in Fukushima-ken, Japan, is a notable inventor recognized for his contributions to the field of non-aqueous battery technologies. With an impressive portfolio of 19 patents, Nagai focuses on advancements in polymer electrolyte systems, which play a critical role in enhancing the efficiency and performance of batteries.

Latest Patents

Among Nagai's latest innovations is the patent for a **vinylidene fluoride copolymer-based polymer electrolyte for nonaqueous batteries**, designed to retain a large proportion of electrolytic solution. This innovative battery features a positive electrode material capable of lithium doping and liberation, alongside a negative electrode material with similar capabilities. The unique polymer electrolyte placed between the electrodes is crafted through a meticulous process of mixing a vinylidene fluoride copolymer with a nonaqueous electrolytic solution. By evaporating the solvent, the polymer electrolyte achieves high electroconductivity and remarkable strength. The vinylidene fluoride copolymer consists of 80 to 97 wt. % of vinylidene fluoride monomer units, supplemented by 3 to 20 wt. % of copolymerizable monomer units, showcasing an inherent viscosity between 1.7 to 7 dl/g.

Additionally, Nagai has developed a patent regarding the **process for producing a polymer electrolyte** for nonaqueous batteries, further refining the production technique to enhance the performance attributes of his innovations.

Career Highlights

Nagai has demonstrated his expertise while working for distinguished companies including Kureha Kagaku Kogyo Kabushiki Kaisha and Kureha Corporation. His tenure at these institutions allowed him to develop groundbreaking technologies that significantly contribute to the advancement of battery materials.

Collaborations

Throughout his career, Aisaku Nagai has collaborated with notable colleagues, such as Katsuo Horie and Takumi Katsurao. These partnerships have fostered a dynamic exchange of ideas and innovations, propelling advancements in his specialized field of polymer electrolytes.

Conclusion

Aisaku Nagai's innovative spirit and dedication to advancing non-aqueous battery technology through polymer electrolytes highlight his valuable contributions as an inventor. With a focus on enhancing electroconductivity and strength in battery systems, his work continues to influence the future of energy storage solutions.