A mobile device for treating lithium-ion batteries comprising: 1.1 a feed chamber , wherein 1.1.1 lithium-ion batteries can be received in the feed chamber ; 1.2 a comminuting device , wherein 1.2.1 the lithium-ion batteries received in the feed chamber can be conveyed from the feed chamber to the comminuting device and 1.2.2 the lithium-ion batteries conveyed to the comminuting device can be comminuted by the comminuting device ; 1.3 an intermediate input container , wherein 1.3.1 the lithium-ion batteries comminuted by the comminuting device can be conveyed from the comminuting device to the intermediate input container and 1.3.2 the comminuted lithium-ion batteries conveyed to the intermediate input container can be received in the intermediate input container ; 1.4 a rotary kiln , wherein 1.4.1 the comminuted lithium-ion batteries received in the intermediate input container can be conveyed from the intermediate input container into the rotary kiln , 1.4.2 the rotary kiln can be electrically heated and 1.4.3 the comminuted lithium-ion batteries conveyed into the rotary kiln can be thermally treated by the rotary kiln ; and 1.5 an output conveying facility , wherein 1.5.1 the comminuted lithium-ion batteries thermally treated in the rotary kiln can be conveyed out of the rotary kiln by the output conveying facility . 1.1 a feed chamber , wherein 1.1.1 lithium-ion batteries can be received in the feed chamber ; 1.1.1 lithium-ion batteries can be received in the feed chamber ; 1.2 a comminuting device , wherein 1.2.1 the lithium-ion batteries received in the feed chamber can be conveyed from the feed chamber to the comminuting device and 1.2.2 the lithium-ion batteries conveyed to the comminuting device can be comminuted by the comminuting device ; 1.2.1 the lithium-ion batteries received in the feed chamber can be conveyed from the feed chamber to the comminuting device and 1.2.2 the lithium-ion batteries conveyed to the comminuting device can be comminuted by the comminuting device ; 1.3 an intermediate input container , wherein 1.3.1 the lithium-ion batteries comminuted by the comminuting device can be conveyed from the comminuting device to the intermediate input container and 1.3.2 the comminuted lithium-ion batteries conveyed to the intermediate input container can be received in the intermediate input container ; 1.3.1 the lithium-ion batteries comminuted by the comminuting device can be conveyed from the comminuting device to the intermediate input container and 1.3.2 the comminuted lithium-ion batteries conveyed to the intermediate input container can be received in the intermediate input container ; 1.4 a rotary kiln , wherein 1.4.1 the comminuted lithium-ion batteries received in the intermediate input container can be conveyed from the intermediate input container into the rotary kiln , 1.4.2 the rotary kiln can be electrically heated and 1.4.3 the comminuted lithium-ion batteries conveyed into the rotary kiln can be thermally treated by the rotary kiln ; and 1.4.1 the comminuted lithium-ion batteries received in the intermediate input container can be conveyed from the intermediate input container into the rotary kiln , 1.4.2 the rotary kiln can be electrically heated and 1.4.3 the comminuted lithium-ion batteries conveyed into the rotary kiln can be thermally treated by the rotary kiln ; and 1.5 an output conveying facility , wherein 1.5.1 the comminuted lithium-ion batteries thermally treated in the rotary kiln can be conveyed out of the rotary kiln by the output conveying facility . 1.5.1 the comminuted lithium-ion batteries thermally treated in the rotary kiln can be conveyed out of the rotary kiln by the output conveying facility . <EOS>