Patent ID: 8813539

Claim:
An electrochemistry apparatus, comprising a supporting body, made of a first material and having a surface; and a reaction layer for generating electromotive force, covering the surface of the supporting body, the reaction layer comprising: an ion conductive layer, comprising a first surface and a second surface, wherein the first surface is opposite to the second surface, and the ion conductive layer is made of a second material, wherein the second material has a thermal expansion coefficient which approximates the thermal expansion coefficient of the first material, the second material has an ionic conductivity which is greater than the ionic conductivity of the first material, and the first material has a toughness which is greater than the second material; a first film electrode, formed on the first surface; and a second film electrode, formed on the second surface and located corresponding to the first film electrode; wherein the supporting body has a symmetrical shape around a major axis of the supporting body and has a plurality of grooves extending parallel to the major axis, and the grooves are symmetrically located on the surface of the supporting body with respect to the major axis.