Communication: The anode in lithium-ion batteries is usually a carbona
ceous material, e.g., graphite powder or fibers held together by a bin
ding polymer. A new type of reversible lithium anode is demonstrated:
sol-gel-derived carbon ceramic electrodes (CCEs), such as that shown i
n the scanning electron micrograph in the Figure. The response of the
CCEs is compared to that of a conventional polymer-graphite electrode.