POWER STORAGE CELL

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Kazuhito Kato of Toyota-shi JP

Junta Takasu of Nagoya-shi JP

Atsushi Yamanaka of Nagoya-shi JP

Masato Ono of Nagoya-shi JP

Satoshi Moriyama of Nagoya-shi JP

Kosuke Suzuki of Toyota-shi JP

Kazuki Sugie of Miyoshi-shi JP

Kazuya Kumazawa of Nagoya-shi JP

POWER STORAGE CELL

This abstract first appeared for US patent application 20250149620 titled 'POWER STORAGE CELL

Original Abstract Submitted

a power storage cell includes: an electrode body in which a sheet member is wound so as to surround a winding axis; and a case in which the electrode body is housed, in which: the sheet member includes an electrode sheet and a separator; the electrode sheet includes a current collector plate and an electrode composite material layer fabricated on the current collector plate; the electrode sheet includes a groove portion extending in a direction of the winding axis, in which the electrode composite material layer is not fabricated; a plurality of the groove portions is fabricated in a direction in which the electrode sheet extends; and an interval between the groove portions on a winding inner side is smaller than an interval between the groove portions on a winding outer side.