Electrode connection structure and electrode connection method

An electrode connection structure, comprising:

• a first base material;
• an electrode layer located on one surface of the first base material;
• a second base material disposed on a surface opposite to the one surface of the first base material;
• a metal wire fixed to the second base material;
• and
• a fastening member that fastens one end of an electric wire to the first base material and the second base material, wherein
• the fastening member includes:
• a shaft portion inserted in a through hole penetrating the electrode layer, the first base material and the second base material;
• and
• two clamping portions disposed on the shaft portion so as to clamp a periphery of the through hole in each of the electrode layer, the first base material, and the second base material in an axial direction of the shaft portion,
• the one end of the electric wire is fixed to the fastening member while being electrically connected to the electrode layer, and
• the two clamping portions clamp the metal wire fixed to the second base material in the axial direction together with the electrode layer, the first base material, and the second base material.

An electrode connection method, comprising:

• disposing a second base material on a surface opposite to one surface of a first base material having the one surface on which a first electrode layer and a second electrode layer are formed;
• disposing an insulating member on the second base material;
• fastening one end of a first electric wire to the first base material and the second base material by a first fastening member having a first shaft portion and two first clamping portions disposed on the first shaft portion;
• and
• fastening one end of a second electric wire to the first base material and the second base material by a second fastening member having a second shaft portion and two second clamping portions disposed on the second shaft portion,
• the fastening by the first fastening member including:
• inserting the first shaft portion in a first through hole that penetrates the first electrode layer, the first base material, the second base material, and the insulating member;
• clamping a periphery of the first through hole in each of the first electrode layer, the first base material, the second base material, and the insulating member by the two first clamping portions in an axial direction of the first shaft portion;
• and
• fixing the one end of the first electric wire to the first fastening member while being electrically connected to the first electrode layer,
• the fastening by the second fastening member including:
• inserting the second shaft portion in a second through hole that penetrates the second electrode layer, the first base material, the second base material, and the insulating member;
• clamping a periphery of the second through hole in each of the second electrode layer, the first base material, the second base material, and the insulating member by the two second clamping portions in an axial direction of the second shaft portion;
• and
• fixing the one end of the second electric wire to the second fastening member while being electrically connected to the second electrode layer.