Antimony based anode material for rechargeable batteries and preparation method
US9923202B2 · kind B2 · utility
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Key dates
| Filing date | Feb 9, 2017 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Feb 9, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An antimony based anode material for a rechargeable battery includes nanoparticles of composition SbMxOy, where M is an element selected from the group consisting of Sn, Ni, Cu, In, Al, Ge, Pb, Bi, Fe, Co, and Ga, with 0≤x<2 and 0≤y≤2.5+2x. The nanoparticles form a substantially monodisperse ensemble with an average size not exceeding a value of 30 nm and by a size deviation not exceeding 15%. A method for preparing the antimony based anode material is carried out in situ in a non-aqueous solvent and starts by reacting an antimony salt and an organometallic amide reactant and oleylamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.