FIXING DEVICE FOR FIXING PLURALITY OF ENERGY STORAGE CELLS, AND ENERGY STORAGE MODULE USING SAME

Disclosed is a fixing device for fixing a plurality of energy storage cells arranged in parallel to each other. The fixing device includes a body having a hole formed through an upper surface and a lower surface thereof to accommodate a part of at least one energy storage cell; a first coupling protrusion and a first accommodation portion formed at a first side surface of the body to be spaced apart in opposite directions by the same distance from a center of the first side surface, the first coupling protrusion and the first accommodation portion being shaped to engage with each other; and a second coupling protrusion and a second accommodation portion formed at a second side surface of the body, which is opposite to the first side surface, to be spaced apart in opposite directions by the same distance from a center of the second side surface, the second coupling protrusion and the second accommodation portion being shaped to engage with each other.