ELECTRODE COMPOSITIONS AND ALKALI METAL BATTERIES COMPRISING SAME

A composition-of-matter comprising a plurality of particles is disclosed herein, the particles comprising a substance reversibly releasing an alkali metal while decreasing in volume and absorbing the alkali metal while increasing in volume. Some or all of the particles are encapsulated within a volu...

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Bibliographische Detailangaben
Hauptverfasser:	PELED, Emanuel, ALON, Meital, GOLODNITSKY, Diana
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS THEREOF ELECTRICITY INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	A composition-of-matter comprising a plurality of particles is disclosed herein, the particles comprising a substance reversibly releasing an alkali metal while decreasing in volume and absorbing the alkali metal while increasing in volume. Some or all of the particles are encapsulated within a volume enclosed by a shell or matrix which conducts cations of the alkali metal, wherein a volume of the substance upon maximal absorption of the alkali metal does not exceed the volume enclosed by a shell or matrix. Further disclosed herein is a process for preparing a composition-of-matter by coating particles comprising the aforementioned substance with a conductor of cations of the alkali metal, when the substance is saturated with the alkali metal, as well as electrochemical half cells and batteries including the composition-of-matter.