An exemplary atomizing device includes an atomizing sleeve, a liquid chamber in the atomizing sleeve, an atomizing assembly, a first connector arranged at one end of the atomizing sleeve. The liquid chamber is configured for reserving tobacco liquid. The atomizing assembly includes a liquid conducting component and a heating wire wound around the liquid conducting component. The liquid conducting component is configured for absorbing the tobacco liquid from the liquid chamber. The first connector is integrally formed, and includes an insulated body, an inner electrode and an outer electrode fixed in the insulated body. The insulated body, the inner electrode and the outer electrode are coaxially arranged. Two ends of the heating wire are connected to the inner electrode and the outer electrode respectively. In addition, the present disclosure also relates to a battery assembly, and an electronic cigarette using the atomizing device and the battery assembly.
