Ryo Hanasaki

Title: Ryo Hanasaki: Battery Technology Inventor

Introduction

Ryo Hanasaki is an inventor based in Toyota, Japan, whose work focuses on nonaqueous electrolyte secondary batteries. He is associated with Toyota Jidosha Kabushiki Kaisha and is named on 2 patents.

Latest Patents

Hanasaki’s listed patents address battery construction and the chemistry of electrode surfaces.

- **Nonaqueous electrolyte secondary battery and manufacturing method therefor.** This invention describes a battery with positive and negative electrodes, a separator, a nonaqueous electrolyte, and a case. It specifies that the ends of the contact faces between the negative-electrode active-material layer and the separator are at least partially bonded, as part of the battery design and manufacturing approach.

- **Nonaqueous electrolyte secondary cell and method for manufacturing nonaqueous electrolyte secondary cell.** This patent describes a way to improve a secondary cell that forms solid-electrolyte interphase (SEI) films on its electrode materials. The disclosed cell has a negative-electrode SEI film containing lithium bis(oxalato)borate (LiBOB) and fluorosulfonic-acid components, and a positive-electrode SEI film containing a phosphoric-acid component. The patent also specifies relationships between the amounts of these components.

Career Highlights

The available information identifies Hanasaki’s patent work in secondary-battery design and manufacturing. His inventions address both the physical arrangement of battery components and the composition of protective films on electrode surfaces.

Collaborations

Hanasaki’s listed coworkers include Yusuke Onoda and Takashi Harayama. His company affiliation is Toyota Jidosha Kabushiki Kaisha.

Conclusion

Ryo Hanasaki’s two listed patents reflect a focus on improving nonaqueous secondary batteries through electrode-separator construction and SEI-film chemistry.