Interconnection structure between stacks and protector

An interconnection structure between stacks for electrically connecting connection terminals to each other in a state in which a second battery stack is provided on a specific direction side relative to a first battery stack in a battery pack including the first and second battery stacks in which battery cells are stacked and the connection terminals are provided on the specific direction side, the interconnection structure between stacks comprising:

• a first terminal electrically connectable to the connection terminal of the first battery stack;
• a second terminal electrically connectable to the connection terminal of the second battery stack;
• a protector formed in a hollow shape;
• and
• an electric wire having one end side connected to the first terminal and another end side connected to the second terminal, the electric wire being inserted into the protector,
• wherein the protector includes a hinge portion bendable in a prescribed direction, and is switchable between a first state for connecting the connection terminals to each other and a second state in which the protector is bent in the prescribed direction using the hinge portion from the first state.