An electrochemical apparatus includes a housing, an electrode assembly, an electrode pole, and a first connector. A first segment of the first connector is connected a first tab of the electrode assembly, a second segment of the first connector is connected to the electrode pole, and when viewed along a first direction, the first segment and the second segment do not overlap. The housing includes a first sidewall and a second sidewall connected to each other. A shortest distance from a center of the electrode pole to an end face of the first connector along a second direction is L1, a distance from the center of the electrode pole to a bottom wall of the housing is L2, and a distance from the center of the electrode pole to the second sidewall is L3, satisfying L1≤L2 and L1≤L3.