Energy storage apparatus

An energy storage apparatus comprising:

• an energy storage device;
• an outer case including a box-shaped outer case body that accommodates the energy storage device, and a lid that covers one side of the outer case body in a predetermined direction;
• and
• a substantially plate-shaped inner lid disposed on one side of an end of the energy storage device on the one side in the predetermined direction,
• wherein the outer case body includes:
• a pair of first side walls facing each other;
• a pair of second side walls that face each other and connect the pair of first side walls to each other;
• and
• a pair of first fixing portions that are respectively provided on the pair of first sidewalls and attach the inner lid,
• the inner lid includes a pair of second fixing portions that are respectively connected with the pair of first fixing portions and are arranged at a predetermined distance from each other,
• the outer case body and the inner lid are fixed by connecting the pair of first fixing portions and the pair of second fixing portions to each other,
• the pair of first side walls include a pair of extension portions respectively extending from each inner surfaces of the pair of first side walls,
• the pair of extension portions respectively extend from one of the pair of first side walls toward an other of the pair of first side walls, and
• the pair of first fixing portions are respectively provided in the pair of extension portions.

An energy storage apparatus comprising:

• an energy storage device;
• an outer case including a box-shaped outer case body that accommodates the energy storage device, and a lid that covers one side of the outer case body in a predetermined direction;
• and
• a substantially plate-shaped inner lid disposed on one side of an end of the energy storage device in the predetermined direction,
• wherein the outer case body includes:
• a pair of first side walls facing each other;
• a pair of second side walls that face each other and connect the pair of first side walls to each other;
• and
• a pair of first fixing portions that are respectively provided on the pair of first sidewalls and attach the inner lid,
• the inner lid includes a pair of second fixing portions that are respectively connected with the pair of first fixing portions and are arranged at a predetermined distance from each other,
• the outer case body and the inner lid are fixed by connecting the pair of first fixing portions and the pair of second fixing portions to each other, and
• wherein one of the pair of first fixing portions and the pair of second fixing portions include a pin while an other include an insertion hole.