18734647. POWER STORAGE CELL (TOYOTA JIDOSHA KABUSHIKI KAISHA)

POWER STORAGE CELL

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Yusuke Ikeda of Miyoshi-shi (JP)

Kazuhito Kato of Toyota-shi (JP)

Takaaki Goto of Seto-shi (JP)

Masayoshi Haga of Nagoya-shi (JP)

Minehiro Funato of Toyota-shi (JP)

Tsuyoshi Kaneko of Nisshin-shi (JP)

Yuka Yokoi of Nagoya-shi (JP)

POWER STORAGE CELL

This abstract first appeared for US patent application 18734647 titled 'POWER STORAGE CELL

Original Abstract Submitted

The power storage cell includes a case, an electrolyte solution, and an electrode assembly. The electrode assembly includes a first electrode, a second electrode, a separator, and an interposition film. The first electrodes and the second electrodes are alternately stacked. The separator separates the first electrode from the second electrode. The interposition film is interposed between the first electrode and the separator. The interposition film includes a first region and a second region in a plane orthogonal to the stacking direction of the first electrode and the second electrode. The first region includes the center of the interposition film in a plane. The second region surrounds the periphery of the first region. The interposition film satisfies the relationship of the formula (1) “T<T”. T represents the thickness of the interposition film in the first region. T represents the thickness of the interposition film in the second region.