Complex electrode assembly including plurality of electrode assemblies and electrochemical device comprising the complex electrode assembly

A complex electrode assembly comprising:

• a first sheet-shaped wire which extends in a lengthwise direction thereof and comprises a sheet region, a width of which in a direction perpendicular to the lengthwise direction is greater than a thickness thereof in a direction perpendicular to the lengthwise direction and a width direction of the first sheet-shaped wire;
• a plurality of electrode assemblies which are arranged to be spaced apart from each other in the lengthwise direction of the first sheet-shaped wire and are electrically connected to the first sheet-shaped wire, wherein each of the electrode assemblies comprises a first electrode tab electrically connected to the first sheet-shaped wire;
• and
• wherein outer surfaces of each of the electrode assemblies comprises a first outer surface and a second outer surface arranged opposite to each other in the lengthwise direction of the first sheet-shaped wire, a third outer surface and a fourth outer surface arranged opposite to each other in the width direction of the first sheet-shaped wire, and a fifth outer surface and a sixth outer surface arranged opposite to each other in a thickness direction of the first sheet-shaped wire,
• the fifth and sixth outer surfaces of the each of the electrode assemblies are the outermost surfaces thereof in the thickness direction of the first sheet-shaped wire,
• the first electrode tab is partially bent in a way such that a portion of the first electrode tab is bonded with the first sheet-shaped wire,
• each of the electrode assemblies comprises a first side and a second side in the width direction of the first sheet-shaped wire, and
• the first sheet-shaped wire is disposed between the first side and the second side of each of the electrode assemblies.