ENERGY STORAGE APPARATUS

This embodiment provides an energy storage apparatus that includes: a plurality of energy storage devices, each having an external terminal; and a bus bar configured to conductively connect the external terminals to each other between different ones of the plurality of energy storage devices. The bus bar includes a pair of connecting portions, each placed on the external terminal. Each of the pair of connecting portions includes a plurality of curved welded portions, each formed in a curved shape that convexly curves inward in a first direction where the pair of connecting portions are aligned. The plurality of curved welded portions are formed to be aligned in the first direction.