Toshiba Battery Co., Ltd.

Toshiba Silicone Co., Ltd.

Michio Watabe

Keiji Kobayashi

Kazumasa Yoshida

Masato Ohashi

Masao Ide

Hitoshi Takagishi

An air cell comprising a cell container, a gas diffusion electrode which uses oxygen as an active material, and an air-inlet opening for communication with air outside the container. A porous film is provided to support the gas diffusion electrode, and an air-diffusing porous sheet impregnated with film-forming silicone is provided between the porous film and the air-inlet opening.

Air cell with gas diffusion electrode

An air cell of the invention has an air cathode, one surface of which is in contact with an electrolyte and the other surface of which is in contact with air. The air cathode has current collecting grids, a carbon powder, a binder and a metal chelate. The current collecting grids are located at the center of the air cathode. The concentration of the binder in an area of the air cathode which is in contact with the electrolyte beyond the current collecting grids is lower than the concentration of the binder in an area of the air cathode which is in contact with the air.

Air cell

Growing community of inventors

Takasaki, Japan

Michio Watabe