Tin alloy electrode compositions for lithium batteries

Details Tin alloy electrode compositions for lithium batteries Tin alloy electrode compositions for lithium batteries

H - Electricity

01

M

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

Patent

CA 2325425

An electrode composition that includes (a) an electrochemically active metal element which, prior to cycling, is in the form of an intermetallic compound or an elemental metal and (b) a non-electrochemically active metal element. The electrode compositions have high initial capacities that are retained even after repeated cycling. The electrode compositions also exhibit high coulombic efficiencies.

On décrit une composition d'électrode qui contient (a) un élément métallique électrochimiquement actif qui, avant le recyclage, se présente sous forme d'un composé intermétallique ou d'un métal élémentaire, et (b) un élément métallique non électrochimiquement actif. Les compositions d'électrode se caractérisent par des capacités initiales élevées qui restent inchangées même après des recyclages répétés. Ces compositions d'électrode se caractérisent également par une efficacité coulombienne élevée.

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