ADVANCED ANODE MATERIALS COMPRISING SPHEROIDAL ADDITIVE-ENHANCED GRAPHITE PARTICLES AND PROCESS FOR MAKING SAME

The present invention provides a spheroidization method for the manufacture of additive-enhanced spheroidal graphite particles, and their application as lithium-ion battery anode active materials. Particles are comprised of natural crystalline flake graphite in combination with additive such as sili...

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Bibliographische Detailangaben
Hauptverfasser:	WELLS, Bruce Eckleberry, BARSUKOV, Igor V, DONINGER, Joseph Eugene, GNANARAJ, Joseph Sathiya, BARSUKOV, Michelle G, MONTERROSO, Michaelangelo
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:	The present invention provides a spheroidization method for the manufacture of additive-enhanced spheroidal graphite particles, and their application as lithium-ion battery anode active materials. Particles are comprised of natural crystalline flake graphite in combination with additive such as silicon nanoparticles or synthetic graphite. Preferably, graphite and additive particles are rolled into spheres using the spheroidization process of the present invention, followed by surface coating with a layer of amorphous carbon. In addition, a lithium ion battery is described, containing additive-enhanced graphite embedded into an agile matrix of high structure carbon black loaded at optimum compositions as a negative electrode.