Converting moving ions into electricity, known as Direct Energy Conversion, involves capturing the energy from high-speed ions, particularly those from fusion reactions. The discussion highlights that any charged particle, including ions, can generate electricity, similar to how batteries operate. Participants suggest exploring test equipment that performs these conversions and reference existing literature for further understanding. The process typically involves slowing down high-energy ions to harness their energy effectively. Overall, the conversation emphasizes the need for more detailed resources and explanations on this topic.