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Le premier compose d'intercalation du graphite associant le lithium a un tiers element metallique a ete prepare en immergeant un echantillon de pyrographite dans un alliage Ca-Li liquide tres pur. Le ternaire graphite-lithium-calcium ainsi obtenu est un compose de premier stade dont la distance interplanaire s'eleve a 776 pm. Dans cette phase, qui presente un eclat metallique et une tres grande durete,...
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