NOVELTY - A solid oxide electrochemical device (10) comprises an electrolyte (16) between an anode (12) and a cathode (14); a cathode current collector (24); an anode current collector (22); a cathode interconnect (20); an anode interconnect (18); and an electrically conductive bonding agent (26) for bonding an anode to an anode interconnect. The bonding agent comprises a particulate metal, and is chemically inert during operation of the device. The cathode, the anode, and electrolyte are between the cathode and anode current collectors.    USE - Used, e.g. as solid oxide fuel cell or a solid oxide electrolyzer (claimed).    ADVANTAGE - The solid oxide electrochemical devices having a dimensionally stable bonding agent that electrically and physically bonds an anode to an anode interconnect. The particulate metal is already in a reduced state, thus it does not undergo reduction in a reducing environment within a solid oxide electrochemical device and does not undergo reduction shrinkage.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for mechanically and physically bonding an anode and an anode interconnect to be used in a solid oxide electrochemical device comprising applying a bonding agent between an anode and an anode interconnect, the bonding agent comprising a vehicle and a particulate metal dispersed in the vehicle; heating the anode, the bonding agent, and the anode interconnect in a gaseous environment containing an oxidizing agent to a first temperature to burn off the vehicle from the bonding agent; introducing the anode, the bonding agent, and the anode interconnect at a second temperature to a gaseous environment containing a reducing agent to reduce oxides which formed in the gaseous environment containing the oxidizing agent, where the second temperature is equal to or greater than the first temperature; and heating the anode, the bonding agent and the anode interconnect to a third temperature to bond the bonding agent to the anode and the anode interconnect in-situ, wherein the third temperature is equal to or greater than the second temperature.    DESCRIPTION OF DRAWING(S) - The figure shows an exploded perspective view of the solid oxide electrochemical device.    Solid oxide electrochemical device (10)    Anode (12)    Cathode (14)    Electrolyte (16)    Anode interconnect (18)    Cathode interconnect (20)    Anode current collector (22)    Cathode current collector (24)    Electrically conductive bonding agent (26)