Energy storage apparatus

An energy storage apparatus, comprising,

• an energy storage device;
• a spacer disposed on a side of the energy storage device in a first direction, the spacer including a pair of wall portions;
• and
• a measuring part for measuring a state of the energy storage device, the measuring part being disposed on one side of the energy storage device in a second direction which intersects with the first direction,
• wherein the wall portions include a first wall portion disposed on the one side of the energy storage device in the second direction and a second wall portion disposed on an other side of the energy storage device opposite to the one side of the energy storage device,
• wherein the energy storage device is arranged at a position where a distance between the energy storage device and the first wall portion is shorter than a distance between the energy storage device and the second wall portion,
• wherein the measuring part comprises a temperature sensor which measures a temperature of the energy storage device, and
• wherein the measuring part is brought into contact with a side surface of the energy storage device at a position where the measuring part faces a current collector of the energy storage device.