In any electrochemical cell, the anode is always the

In any electrochemical cell, the anode is always the electrode at which some species loses electrons. The anode is the cell where the oxidation reaction happens. In oxidation reaction, electrons are donated or released as the reaction occurs. This results to an increase in the oxidation state of the atom. At this part of an electrochemical cell, the anions are pushed to react and release electrons which will then flow through the cell. The electrons released are gained by the atoms in the cathode which is the site for the reduction reaction. The cathode is the electrode where the species always gain electrons. 

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