Amorphous electrode compositions

H - Electricity – 01 – M

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H01M 4/38 (2006.01) H01M 4/02 (2006.01) H01M 4/40 (2006.01) H01M 4/42 (2006.01) H01M 4/44 (2006.01) H01M 4/46 (2006.01) H01M 4/62 (2006.01) H01M 4/36 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2397061

An electrode composition that includes an electrode material consisting essentially of at least one electrochemically inactive elemental metal and at least one electrochemically active elemental metal in the form of an amorphous mixture at ambient temperature. The electrochemically active elemental metal is preferably Aluminium, Cilicon or Tin. The mixture remains amorphous when the electrode composition is incorporated into a lithium battery and cycled through at least one full charge-discharge cycle at ambient temperature.

La présente invention concerne une composition pour électrode comprenant un matériau d'électrode constitué essentiellement d'au moins un métal élémentaire électrochimiquement inactif et d'au moins un métal élémentaire électrochimiquement actif sous forme d'un mélange amorphe à température ambiante. Le métal élémentaire électrochimiquement actif est de préférence l'aluminium, le silicium ou l'étain. Le mélange reste amorphe dans la mesure où la composition pour électrode est incorporée à un accumulateur électrique au lithium et se recycle totalement en un cycle complet de charge et décharge à température ambiante.

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