Patents by Inventor Cedric Pitteloud
Cedric Pitteloud has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9822015Abstract: The present invention provides a method of producing a lithium mixed metal oxide, a lithium mixed metal oxide and a nonaqueous electrolyte secondary battery. The method includes a step of calcining a mixture of one or more compounds of M wherein M is one or more elements selected from the group consisting of nickel, cobalt and manganese, and a lithium compound, in the presence of one or more inactive fluxes selected from the group consisting of a fluoride of A, a chloride of A, a carbonate of A, a sulfate of A, a nitrate of A, a phosphate of A, a hydroxide of A, a molybdate of A and a tungstate of A, wherein A is one or more elements selected from the group consisting of Na, K, Rb, Cs, Ca, Mg, Sr and Ba. The lithium mixed metal oxide contains nickel, cobalt and manganese, has a BET specific surface area of from 3 m2/g to 15 m2/g, and has an average particle diameter within a range of 0.1 ?m or more to less than 1 ?m, the diameter determined by a laser diffraction scattering method.Type: GrantFiled: December 2, 2010Date of Patent: November 21, 2017Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoshi Shimano, Kenji Nakane, Cedric Pitteloud, Kenji Takamori, Yuichiro Imanari
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Patent number: 9653730Abstract: An electrochemically active material comprising a mixture or blend of two groups of particles, exhibits synergetic effect. The two groups of particles are compounds of formula LixHyV3O8 and compounds of formula LixMyPO4 wherein M is one or more transition metals, comprising at least one metal which is capable of undergoing oxidation to a higher valence state. In order to obtain a synergistic effect, the particles of formula (I) and the particles of formule (II) are present in amounts of 5:95% by weight to 95:5% by weight.Type: GrantFiled: February 12, 2013Date of Patent: May 16, 2017Assignee: Belenos Clean Power Holding AGInventor: Cedric Pitteloud
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Patent number: 9287554Abstract: The present invention provides a positive electrode active material. The positive electrode active material is represented by the following formula (I) and has a BET specific surface area of larger than 5 m2/g and not larger than 15 m2/g: LixM1yM31-yO2??(I) wherein M1 is at least one transition metal element selected from Group 5 elements and Group 6 elements of the Periodic Table, M3 is at least one transition metal element other than M1 and selected from among transition metal elements excluding Fe, x is not less than 0.9 and not more than 1.3, and y is more than 0 and less than 1.Type: GrantFiled: August 22, 2011Date of Patent: March 15, 2016Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Maiko Saka, Cedric Pitteloud, Tetsuri Nakayama, Kenji Takamori
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Patent number: 9225007Abstract: The present invention provides a positive electrode active material. The positive electrode active material is represented by the following formula (I) and has a BET specific surface area of larger than 5 m2/g and not larger than 15 m2/g: LixM1yM31-yO2??(I) wherein M1 is at least one transition metal element selected from Group 5 elements and Group 6 elements of the Periodic Table, M3 is at least one transition metal element other than M1 and selected from among transition metal elements excluding Fe, x is not less than 0.9 and not more than 1.3, and y is more than 0 and less than 1.Type: GrantFiled: August 22, 2011Date of Patent: December 29, 2015Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Maiko Saka, Cedric Pitteloud, Tetsuri Nakayama, Kenji Takamori
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Patent number: 9147905Abstract: A lithium mixed metal oxide, shown by the following formula (A): Lix(Mn1?y?z?dNiyFezMd)O2??(A) wherein M is one or more elements selected from the group consisting of Al, Mg, Ti, Ca, Cu, Zn, Co, Cr, Mo, Si, Sn, Nb and V; x is 0.9 or more and 1.3 or less; y is 0.3 or more and 0.7 or less; z is more than 0 and 0.1 or less, and d is more than 0 and 0.1 or less. A positive electrode active material, including the lithium mixed metal oxide. A positive electrode, including the positive electrode active material. A nonaqueous electrolyte secondary battery, including the positive electrode.Type: GrantFiled: March 18, 2010Date of Patent: September 29, 2015Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kenji Takamori, Cedric Pitteloud
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Patent number: 9023524Abstract: Disclosed is a lithium mixed metal oxide which is useful for a positive electrode active material that is capable of providing a nonaqueous electrolyte secondary battery having more excellent cycle characteristics, in particular, more excellent cycle characteristics during high-temperature operation at 60 DEG C. or the like. Specifically disclosed is a lithium mixed metal oxide represented by the following formula (A). Lix(Mn1-y-zNiyFez)O2 (A) (In the formula, x is not less than 0.9 and not more than 1.3; y is 0.46 or more and less than 0.5; and z is 0 or more and less than 0.1.) Also disclosed are: a positive electrode active material which comprises the lithium mixed metal oxide; a positive electrode which comprises the positive electrode active material; and a nonaqueous electrolyte secondary battery which comprises the positive electrode.Type: GrantFiled: February 4, 2010Date of Patent: May 5, 2015Assignee: Sumitomo Chemical Company, LimtedInventors: Yuichiro Imanari, Cedric Pitteloud
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Publication number: 20140242442Abstract: A layered structure lithium mixed metal oxide obtained by a method including a step of calcining a lithium mixed metal oxide raw material containing a transition metal element and a lithium element in a molar ratio of the lithium element to the transition metal element of 1 or more and 2 or less, in the presence of an inactive flux containing one or more compounds selected from the group consisting of a carbonate of M, a sulfate of M, a nitrate of M, a phosphate of M, a hydroxide of M, a molybdate of M, and a tungstate of M, wherein M represents one or more elements selected from the group consisting of Na, K, Rb, Cs, Ca, Mg, Sr and Ba.Type: ApplicationFiled: May 8, 2014Publication date: August 28, 2014Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Cedric PITTELOUD, Yoshinari SAWABE, Satoshi SHIMANO
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Patent number: 8758455Abstract: A method of producing a layered structure lithium mixed metal oxide, including a step of calcining a lithium mixed metal oxide raw material containing a transition metal element and a lithium element in a molar ratio of the lithium element to the transition metal element of 1 or more and 2 or less, in the presence of an inactive flux containing one or more compounds selected from the group consisting of a carbonate of M, a sulfate of M, a nitrate of M, a phosphate of M, a hydroxide of M, a molybdate of M, and a tungstate of M, wherein M represents one or more elements selected from the group consisting of Na, K, Rb, Cs, Ca, Mg, Sr and Ba.Type: GrantFiled: March 18, 2010Date of Patent: June 24, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Cedric Pitteloud, Yoshinari Sawabe, Satoshi Shimano
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Patent number: 8703335Abstract: A lithium mixed metal oxide comprising Ni, Mn and Fe and having a BET specific surface area of 2 m2/g or more and 30 m2/g or less. A method of producing a lithium mixed metal oxide, comprising bringing an aqueous solution containing Ni, Mn, Fe and Cl into contact with an alkali to obtain a coprecipitate, and calcining a mixture of the coprecipitate and a lithium compound by maintaining the mixture at a temperature of lower than 900° C. A positive electrode active material for nonaqueous electrolyte secondary battery, comprising the lithium mixed metal oxide described above or the lithium mixed metal oxide obtained by the method of producing a lithium mixed metal oxide described above as a main ingredient. A positive electrode for nonaqueous electrolyte secondary battery having the positive electrode active material for nonaqueous electrolyte secondary battery described above.Type: GrantFiled: September 26, 2008Date of Patent: April 22, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Cedric Pitteloud, Yuichiro Imanari, Kenji Nakane
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Publication number: 20130164623Abstract: The present invention provides a positive electrode active material. The positive electrode active material is represented by the following formula (I) and has a BET specific surface area of larger than 5 m2/g and not larger than 15 m2/g: LixM1yM31-yO2??(I) wherein M1 is at least one transition metal element selected from Group 5 elements and Group 6 elements of the Periodic Table, M3 is at least one transition metal element other than M1 and selected from among transition metal elements excluding Fe, x is not less than 0.9 and not more than 1.3, and y is more than 0 and less than 1.Type: ApplicationFiled: August 22, 2011Publication date: June 27, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Maiko Saka, Cedric Pitteloud, Tetsuri Nakayama, Kenji Takamori
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Publication number: 20120244413Abstract: The present invention provides a method of producing a lithium mixed metal oxide, a lithium mixed metal oxide and a nonaqueous electrolyte secondary battery. The method includes a step of calcining a mixture of one or more compounds of M wherein M is one or more elements selected from the group consisting of nickel, cobalt and manganese, and a lithium compound, in the presence of one or more inactive fluxes selected from the group consisting of a fluoride of A, a chloride of A, a carbonate of A, a sulfate of A, a nitrate of A, a phosphate of A, a hydroxide of A, a molybdate of A and a tungstate of A, wherein A is one or more elements selected from the group consisting of Na, K, Rb, Cs, Ca, Mg, Sr and Ba. The lithium mixed metal oxide contains nickel, cobalt and manganese, has a BET specific surface area of from 3 m2/g to 15 m2/g, and has an average particle diameter within a range of 0.1 ?m or more to less than 1 ?m, the diameter determined by a laser diffraction scattering method.Type: ApplicationFiled: December 2, 2010Publication date: September 27, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoshi Shimano, Kenji Nakane, Cedric Pitteloud, Kenji Takamori, Yuichiro Imanari
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Publication number: 20120015231Abstract: A lithium mixed metal oxide, shown by the following formula (A): Lix(Mn1-y-z-dNiyFezMd)O2 (A) wherein M is one or more elements selected from the group consisting of Al, Mg, Ti, Ca, Cu, Zn, Co, Cr, Mo, Si, Sn, Nb and V; x is 0.9 or more and 1.3 or less; y is 0.3 or more and 0.7 or less; z is more than 0 and 0.1 or less, and d is more than 0 and 0.1 or less. A positive electrode active material, including the lithium mixed metal oxide. A positive electrode, including the positive electrode active material. A nonaqueous electrolyte secondary battery, including the positive electrode.Type: ApplicationFiled: March 18, 2010Publication date: January 19, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Kenji Takamori, Cedric Pitteloud
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Publication number: 20120009459Abstract: A method of producing a layered structure lithium mixed metal oxide, including a step of calcining a lithium mixed metal oxide raw material containing a transition metal element and a lithium element in a molar ratio of the lithium element to the transition metal element of 1 or more and 2 or less, in the presence of an inactive flux containing one or more compounds selected from the group consisting of a carbonate of M, a sulfate of M, a nitrate of M, a phosphate of M, a hydroxide of M, a molybdate of M, and a tungstate of M, wherein M represents one or more elements selected from the group consisting of Na, K, Rb, Cs, Ca, Mg, Sr and Ba.Type: ApplicationFiled: March 18, 2010Publication date: January 12, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Cedric Pitteloud, Yoshinari Sawabe, Satoshi Shimano
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Publication number: 20110305939Abstract: Disclosed is a lithium mixed metal oxide which is useful for a positive electrode active material that is capable of providing a nonaqueous electrolyte secondary battery having more excellent cycle characteristics, in particular, more excellent cycle characteristics during high-temperature operation at 60 DEG C. or the like. Specifically disclosed is a lithium mixed metal oxide represented by the following formula (A). Lix(Mn1-y-zNiyFez)O2 (A) (In the formula, x is not less than 0.9 and not more than 1.3; y is 0.46 or more and less than 0.5; and z is 0 or more and less than 0.1.) Also disclosed are: a positive electrode active material which comprises the lithium mixed metal oxide; a positive electrode which comprises the positive electrode active material; and a nonaqueous electrolyte secondary battery which comprises the positive electrode.Type: ApplicationFiled: February 4, 2010Publication date: December 15, 2011Applicant: Sumitomo Chemical Company, LimitedInventors: Yuichiro Imanari, Cedric Pitteloud
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Publication number: 20110086257Abstract: A method for producing a layered lithium mixed metal oxide according to the present invention comprises a step of calcining, in the presence of an inert flux composed of a chloride, a lithium mixed metal oxide raw material containing a transition metal element and a lithium element so that the molar ratio of the lithium element to the transition metal element may fall within a range of 1 or more and 2 or less.Type: ApplicationFiled: June 8, 2009Publication date: April 14, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Cedric Pitteloud, Toshinori Isobe, Yuichiro Imanari
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Publication number: 20100248032Abstract: A lithium mixed metal oxide comprising Ni, Mn and Fe and having a BET specific surface area of 2 m2/g or more and 30 m2/g or less. A method of producing a lithium mixed metal oxide, comprising bringing an aqueous solution containing Ni, Mn, Fe and Cl into contact with an alkali to obtain a coprecipitate, and calcining a mixture of the coprecipitate and a lithium compound by maintaining the mixture at a temperature of lower than 900° C. A positive electrode active material for nonaqueous electrolyte secondary battery, comprising the lithium mixed metal oxide described above or the lithium mixed metal oxide obtained by the method of producing a lithium mixed metal oxide described above as a main ingredient. A positive electrode for nonaqueous electrolyte secondary battery having the positive electrode active material for nonaqueous electrolyte secondary battery described above. A nonaqueous electrolyte secondary battery having the positive electrode for nonaqueous electrolyte secondary battery described above.Type: ApplicationFiled: September 26, 2008Publication date: September 30, 2010Inventors: Cedric Pitteloud, Yuichiro Imanari, Kenji Nakane