The present application discloses a battery cell, a battery, and an electric apparatus. The battery cell includes a housing, an electrode assembly, a current collector assembly, and an anti-oxidation layer. The housing has an accommodating cavity. The electrode assembly is disposed within the accommodating cavity. The current collector assembly is connected to the electrode assembly, and the current collector assembly is connected to a side of the housing facing the accommodating cavity. The anti-oxidation layer is disposed on a side of the housing facing away from the accommodating cavity, and an orthographic projection of the anti-oxidation layer on the housing at least partially overlaps with an orthographic projection of the current collector assembly on the housing. The current collector assembly is disposed in the housing and connected to the electrode assembly, and the electrode assembly is electrically connected to external devices to achieve power transmission.