The characteristics and the performance of a new type of dual intercalation battery using low cost, efficient electrode materials is illustrated and discussed. Typically, these batteries use a carbon‐based anode (e.g., graphite) and a polymer [e.g., poly(pyrrole)] cathode. Although far from being optimized, these prototypes show good cycleability and an appreciable theoretical energy density. Since dual intercalation of both the lithium cations and the counteranions are involved in the electrochemical process, these new, metal‐free, lithium power source systems have been termed “dion” batteries.
The properties of some examples of new classes of highly conducting ionic membranes are described and evoluated in terms of applications in new-design electrochemical device
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