METHOD FOR MANUFACTURING A COMPOSITE MATERIAL OF SnO2 AND CARBON NANOTUBES AND/OR CARBON NANOFIBERS, MATERIAL OBTAINED BY THE METHOD, AND LITHIUM BATTERY ELECTRODE COMPRISING SAID MATERIAL
AssigneesUniversite Paul Sabatier Toulouse III, Arkema France
InventorsDominique Plee, Mohamed Chakir, Patrice Simon
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Abstract
A method for manufacturing a composite material including tin oxide particles and a fibrillar carbon material, including synthesising tin hydroxide particles obtained from a tin salt by precipitation/nucleation in a water-alcohol medium, in the presence of the fibrillar carbon material and an acid, the fibrillar carbon material being nanotubes, carbon nanofibres, or a mixture of the two. The method can be used for the production of negative electrodes for lithium-ion batteries.
Claims22
A process for manufacturing a composite comprising particles of tin oxide and a fibrillar carbon-based material, the process comprising a synthesis by precipitation/nucleation in a water-alcohol medium of particles of tin hydroxide resulting from a tin salt in the presence of the fibrillar carbon-based material and an acid,
- wherein the fibrillar carbon-based material consists of carbon nanotubes or carbon nanofibers or a mixture of carbon nanotubes and carbon nanofibers, and
- wherein the synthesis comprises a dissolving/contacting phase carried out at ambient temperature and at atmospheric pressure, then a nucleation/crystallization phase carried out at a temperature above ambient temperature and a heat treatment phase.
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Dependencies are inferred from the claim text.