A negative electrode (12) for a non-aqueous electrochemical cell (10) with an intermetallic host structure containing two or more elements selected from the metal elements and silicon, capable of accommodating lithium within its crystallographic host structure such that when the host structure is lithiated...http://www.google.co.uk/patents/US6528208?utm_source=gb-gplus-sharePatent US6528208 - Anodes for rechargeable lithium batteries
