Lithium-ion battery and battery module, battery pack, and electric apparatus containing same

A lithium-ion battery and a battery module, a battery pack, and an electric apparatus containing the same are provided. The lithium-ion battery includes a positive electrode active material layer including a positive electrode active material and a pre-lithiation agent and an electrolyte including an additive, where the pre-lithiation agent is a lithium metal oxide pre-lithiation agent, the additive includes at least one of compound 1 shown in constitutional formula (I) and compound 2 shown in constitutional formula (II) below. In the following constitutional formula (I), Ris an oxygen atom or methylene, and Ris a hydrogen atom, a halogen atom, an alkyl group having 1 to 3 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms.