Patent ID: 9406986
Filing Date: 2016-08-02
CPC Classification: H01M,Y02E

Claim Text:
1. A metal-air button cell comprising a closed cell housing and, arranged therein, an air cathode and a metal-based anode separated from one another by a separator, wherein the cell housing is substantially composed of a first housing half-part and a second housing half-part, the housing half-parts are configured to be cup-shaped and have a base and a circumferential side wall, the base of the second housing half-part has one or more entry and/or exit openings for atmospheric oxygen, the air cathode is disc-shaped and positioned on the base of the second housing half-part such that it covers the entry and/or exit openings and its periphery bears on an inner side of a circumferential side wall of the second housing half-part, an electrically conductive coating is arranged on the inner side of the side wall at a height on which the periphery bears, and the electrically conductive coating has a matrix of a binding agent and, embedded therein, electrically conductive particles.