Applicator having multiple injectors for producing multiple component mixture

Application device for mixing a plurality of components for producing a multicomponent mixture, in particular a polyurethane foam, and for introducing and/or applying the multicomponent mixture into and/or onto an object, in particular a lithium-ion battery, comprising:

• a mixing tube with a first closed end and a second end for discharging the multicomponent mixture from the mixing tube, wherein the mixing tube comprises a mixing space between the first end and the second end, which defines a mixing section starting from the first end,
• a plurality of injection units, each configured to inject a corresponding one of the plurality of components into the mixing space at a corresponding position along the mixing section,
• wherein the plurality of injection units comprise:
• at least one first injection unit for injecting a first component at a first position along the mixing section;
• and
• at least one second injection unit for injecting a second component, in particular a gas or gas mixture, preferably air, at a second position, which is arranged at or downstream of the first position along the mixing section;
• wherein the application device further comprises a mixer arranged in the mixing space, which mixer is configured to mix the injected components with one another on the basis of the order in which they are injected at the corresponding positions along the mixing section.