| Title of Invention | " A NEGATIVE ACTIVE MATERIAL FOR A LITHIUM BATTERY AND METHOD OF MANUFACTURING THEREOF"`. |
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| Abstract | An active metrarial for high-voltage negative electrodes (>IV vs Li) of secondary rechargeable lithium batteries is disclosed. Chemical composition is represented by the general formula Li2+v Ti3-w FexMyM’2O7-a+ where M and M are metal ions having an ionic radius between 0.5 and 0.8 A and forming an octahedral structure with oxygen, like Ti3+, Co2+, Co3+ , Ni2+, Ni3+, Cu2+, Mg2+, A 13+, In3+, Sn4+, Sb3,Sb5+, a is related to the formal oxidation numbers n and n’ of M and by the relatio9n 2 a=v+4w, 3x-ny’ z and the ranges of values are –0.5£ V£0.5, 0£w £0.2, x>0, y+z>0 and x+y+z £0.7. The strueture is related to that of remsdellite for all the compositions, The negative active material is prepared by ceramics process wherein lithium oxide, titanium oxide, iron oxide, M and/or M oxide are used as starting material for synthesis, Inorganic or organic solid precursors of the oxides can also be used instead. After reacant dispersion the mixture is field. The resulting electrochemically active material provides low working voltage and capacity with excellent cyeling capabilities at both low and high current densities. |
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02239-kolnp-2005-description complete.pdf
02239-kolnp-2005-international publication.pdf
2239-kolnp-2005-granted-abstract.pdf
2239-kolnp-2005-granted-assignment.pdf
2239-kolnp-2005-granted-claims.pdf
2239-kolnp-2005-granted-correspondence.pdf
2239-kolnp-2005-granted-description (complete).pdf
2239-kolnp-2005-granted-drawings.pdf
2239-kolnp-2005-granted-examination report.pdf
2239-kolnp-2005-granted-form 1.pdf
2239-kolnp-2005-granted-form 18.pdf
2239-kolnp-2005-granted-form 3.pdf
2239-kolnp-2005-granted-form 5.pdf
2239-kolnp-2005-granted-gpa.pdf
2239-kolnp-2005-granted-letter patent.pdf
2239-kolnp-2005-granted-others.pdf
2239-kolnp-2005-granted-pa.pdf
2239-kolnp-2005-granted-reply to examination report.pdf
2239-kolnp-2005-granted-specification.pdf
| Patent Number | 219933 | |||||||||||||||||||||
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| Indian Patent Application Number | 02239/KOLNP/2005 | |||||||||||||||||||||
| PG Journal Number | 20/2008 | |||||||||||||||||||||
| Publication Date | 16-May-2008 | |||||||||||||||||||||
| Grant Date | 14-May-2008 | |||||||||||||||||||||
| Date of Filing | 11-Nov-2005 | |||||||||||||||||||||
| Name of Patentee | UMICORE | |||||||||||||||||||||
| Applicant Address | RUE DU MARAIS 31, B-1000 BRUSSELS, BELGIUM | |||||||||||||||||||||
Inventors:
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| PCT International Classification Number | H01M 4/48, 10/40 | |||||||||||||||||||||
| PCT International Application Number | PCT/EP2004/004503 | |||||||||||||||||||||
| PCT International Filing date | 2004-04-26 | |||||||||||||||||||||
PCT Conventions:
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