Tomohiko Ishida

Title: Tomohiko Ishida: Innovator in Battery Technology

Introduction

Tomohiko Ishida is a prominent inventor based in Okazaki, Japan. He has made significant contributions to the field of battery technology, particularly in the development of nonaqueous electrolyte secondary batteries and lithium-ion secondary batteries. With a total of 3 patents to his name, Ishida continues to push the boundaries of innovation in energy storage solutions.

Latest Patents

One of Ishida's latest patents is a method of manufacturing nonaqueous electrolyte secondary batteries. This invention provides a method that includes placing an electrode assembly in a hermetically sealable battery case, injecting a nonaqueous electrolyte into the battery case after it has been set in a pressure-reduced state, and sealing the battery case under atmospheric pressure conditions. The sealing process occurs before a sufficient amount of the injected electrolyte completely impregnates the interior of the electrode assembly. As a result, the remaining nonaqueous electrolyte impregnates the interior of the electrode assembly after sealing, which lowers the pressure of voids within the battery case below atmospheric pressure.

Another significant patent by Ishida is a method for manufacturing lithium-ion secondary batteries. This method includes several steps: a binder coating step, a mixture supplying step, a magnetic field applying step, and a convection generating step. The binder coating step involves coating a slurry-form binder on a metal foil collector. The mixture supplying step entails supplying a negative electrode mixture containing graphite to be superposed on the coated binder. The magnetic field applying step applies a magnetic field with lines of force pointing orthogonally to the metal foil, while the convection generating step creates convection in the negative electrode mixture by applying heat to it after the magnetic field has been applied.

Career Highlights

Tomohiko Ishida is currently employed at Toyota Jidosha Kabushiki Kaisha, a leading automotive manufacturer known for its commitment to innovation and sustainability. His work at Toyota has allowed him to collaborate with other talented professionals in the field, further enhancing his contributions to battery technology.

Collaborations

Ishida has worked alongside notable colleagues such as Takahiro Tsubouchi and Nobuyuki Yamazaki. Their collaborative efforts have played a crucial role in advancing the research and development of battery technologies.

Conclusion

Tomohiko Ishida is a key figure in the field of