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 18644632 titled 'POWER STORAGE CELL

Original Abstract Submitted

In a power storage cell according to the present disclosure, the first electrode of the wound electrode assembly includes a sheet-shaped current collector and an electrode composite material layer formed on the current collector. The current collector includes a coated portion on which the electrode composite material layer is coated and an uncoated portion on which the electrode composite material layer is not coated. The uncoated portion protrudes from the coated portion to one side in the axial direction of the wound electrode assembly. The case houses the wound electrode assembly, and includes a cylindrical wall portion and a bottom portion. The cylindrical wall portion is provided so as to cover the outer peripheral side of the wound electrode assembly. The bottom portion is disposed on one side in the axial direction, connected to one end of the cylindrical wall portion, and joined to the uncoated portion by welding.