Patent ID: 11967740
Assignee: OSAKA GAS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC C  H  Y | IPC H

Claim 0:
1. An electrochemical element comprising:
a plate-like support provided with an internal passage therein,
wherein the plate-like support comprises:
a first plate-like body;
a second plate-like body;
a gas-permeable portion through which gas is permeable between the internal passage and an outside of the plate-like support; and
an electrochemical reaction portion that is formed by stacking at least a film-like electrode layer, a film-like electrolyte layer, and a film-like counter electrode layer in the stated order in a predetermined stacking direction on an outer face of the plate-like support so as to entirely or partially cover the gas-permeable portion,

the gas-permeable portion is formed in the first plate-like body,
the electrochemical reaction portion is formed on a first outer face of the first plate-like body,
the internal passage is formed between respective faces of the first plate-like body and the second plate-like body that are opposed to each other,
a first gas, that is one of a reducing component gas and an oxidative component gas, flows through the internal passage, and the internal passage is provided with a turbulence forming body that forms a turbulence state of the first gas,
the internal passage comprises a plurality of auxiliary passages that extend in a first direction along a planar surface of the plate-like support, that are spaced apart from each other in a second direction along the planar surface and intersecting the first direction, and that allow gas to flow in the first direction, and
the turbulence forming body comprises a turbulence forming portion that is arranged in at least one auxiliary passage of the plurality of auxiliary passages, that forms the turbulence state of the first gas, and is a net-like body having a plate-like shape and provided adjacently to a portion of a second outer face of the first plate-like body on which portion the gas-permeable portion is formed.