Patents by Inventor Vesselin Manev
Vesselin Manev 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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Publication number: 20060115718Abstract: A lithium polymer battery or multi-cell and a method of making the multi-cells. The multi-cell comprises a plurality of laminated single cell units, each unit comprising, laminated in sequence, a negative electrode current collector, a negative electrode, a first electrolyte-impregnated separator, a positive electrode, and a positive electrode current collector. These single cell units are stacked one next to another in sequence and a second electrolyte-impregnated separator is positioned between adjacent laminated cell units. The method includes positioning, in sequence, a negative electrode current collector, a negative electrode, a first porous separator, a positive electrode, and a positive electrode current collector to form a single cell unit. A plurality of the single cell units are then positioned adjacent one another in sequence, and a second porous separator is positioned between adjacent single cell units.Type: ApplicationFiled: November 30, 2004Publication date: June 1, 2006Inventors: Mohammad Parsian, Vesselin Manev, Yee-Ho Chia
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Publication number: 20050069771Abstract: A composite lithiated nickel-based positive electrode material in which the water-containing excess lithium compounds LiOH and LiHCO3 have a combined content of at least 10 times lower than the content of the water-free excess lithium compound Li2CO3. There is further provided a lithium-ion battery comprising the positive electrode material having the significantly reduced amount of LiOH and LiHCO3.Type: ApplicationFiled: September 30, 2003Publication date: March 31, 2005Inventors: Vesselin Manev, Vijay Saharan
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Publication number: 20050069770Abstract: A lithium polymer battery having a greater comonomer quantity in the polymer of the negative electrode than in the polymer of the positive electrode. The negative electrode polymer is a copolymer of a first primary monomer and 1-30 wt. % of a first comonomer, and the positive electrode is either a homopolymer of a second primary monomer or a copolymer of the second primary monomer and up to 25 wt. % of a second comonomer.Type: ApplicationFiled: September 30, 2003Publication date: March 31, 2005Inventors: Vesselin Manev, Yee-Ho Chia
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Publication number: 20050069484Abstract: A method for preparing a positive electrode material for a lithium-ion or lithium-ion polymer battery to reduce the moisture content of the positive electrode material. A lithiated transition metal oxide positive electrode material having at least one water-containing compound therein is treated to convert the water-containing compound to a water-free compound. One treatment in the method of the present invention involves exposing the positive electrode material at a temperature of 0-650° C. to a CO2-containing gas. The other treatment in the method of the present invention involves heating the positive electrode material to a temperature greater than 250° C. in the presence of an oxygen-containing gas, such as air and/or O2. The treatments may be, performed sequentially or concurrently.Type: ApplicationFiled: September 30, 2003Publication date: March 31, 2005Inventors: Vesselin Manev, Vijay Saharan, Yee-Ho Chia, Jeffrey Roberts
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Patent number: 6517803Abstract: The present invention includes lithium manganese oxide spinel compounds having a low porosity, a high tap density and a high pellet density, and methods of preparing these compounds. In particular, the method comprises preparing a lithium manganese oxide with a spinel structure and having the formula: wherein: Li1+XMn2−YMm11Mm22 . . . MmkkO4+Z M1, M2, . . . Mk are cations different than lithium or manganese selected from the group consisting of alkaline earth metals, transition metals, B, Al, Si, Ga and Ge; X, Y, m1, m2, . . . , mk, each have a value between 0 and 0.2; Z has a value between −0.1 and 0.2; and X, Y, m1, m2, . . . mk are selected to satisfy the equation: Y=X+m1+m2+ . . . +mk.Type: GrantFiled: April 26, 2001Date of Patent: February 11, 2003Assignee: FMC CorporationInventors: Vesselin Manev, Titus Faulkner, D. Wayne Barnette
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Patent number: 6423294Abstract: The present invention includes lithium manganese oxide spinel compounds having a low porosity, a high tap density and a high pellet density, and methods of preparing these compounds. In particular, the method comprises preparing a lithium manganese oxide with a spinel structure and having the formula: wherein: Li 1 + X ⁢ Mn 2 - Y ⁢ M m 1 1 ⁢ M m 2 2 ⁢ … ⁢ ⁢ M m k k ⁢ O 4 + Z M1, M2, . . . Mk are cations different than lithium or manganese selected from the group consisting of alkaline earth metals, transition metals, B, Al, Si, Ga and Ge; X, Y, m1, m2, . . . mk, each have a value between 0 and 0.2; Z has a value between −0.1 and 0.Type: GrantFiled: April 26, 2001Date of Patent: July 23, 2002Assignee: FMC CorporationInventors: Vesselin Manev, Titus Faulkner, D. Wayne Barnette
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Publication number: 20010025946Abstract: The present invention includes lithium manganese oxide spinel compounds having a low porosity, a high tap density and a high pellet density, and methods of preparing these compounds.Type: ApplicationFiled: April 26, 2001Publication date: October 4, 2001Applicant: FMC CorporationInventors: Vesselin Manev, Titus Faulkner, D. Wayne Barnette
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Publication number: 20010022959Abstract: The present invention includes lithium manganese oxide spinel compounds having a low porosity, a high tap density and a high pellet density, and methods of preparing these compounds.Type: ApplicationFiled: April 26, 2001Publication date: September 20, 2001Applicant: FMC CorporationInventors: Vesselin Manev, Titus Faulkner, D. Wayne Barnette
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Patent number: 6280699Abstract: A method of preparing a highly homogenous spinel Li1+XMn2−XO4+Y intercalation compound having a predetermined mean particle size and particle size distribution for 4 V secondary lithium and lithium ion cells is provided. The method comprises mixing at least one manganese compound having a predetermined particle size distribution with at least one lithium compound wherein the manganese compound has a mean particle size of between about 1 and 15 microns and the mean particle size of the lithium compound is less than that of the manganese compound The mixture is then fired in one or more firing steps within specific temperature ranges to form the Li1+XMn2−XO4+Y intercalation compound. Preferably, at least one firing step is at a temperature of between about 700° C. and 900° C.Type: GrantFiled: June 14, 1999Date of Patent: August 28, 2001Assignee: FMC CorporationInventors: Vesselin Manev, Walter Ebner, William Thompson, Stephen Dow
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Patent number: 6267943Abstract: The present invention includes lithium manganese oxide spinel compounds having a low porosity, a high tap density and a high pellet density, and methods of preparing these compounds. In particular, the method comprises preparing a lithium manganese oxide with a spinel structure and having the formula: wherein: Li1+XMn2−YM1m1M2m2 . . . MkmkO4+Z M1, M2, . . . Mk are cations different than lithium or manganese selected from the group consisting of alkaline earth metals, transition metals, B, Al, Si, Ga and Ge; X, Y, m1, m2, . . . , mk, each have a value between 0 and 0.2; Z has a value between −0.1 and 0.2; and X, Y, m1, m2, . . . mk are selected to satisfy the equation: Y=X+m1+m2+ . . . +mk.Type: GrantFiled: October 14, 1999Date of Patent: July 31, 2001Assignee: FMC CorporationInventors: Vesselin Manev, Titus Faulkner, D. Wayne Barnette
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Patent number: 6218048Abstract: The present invention includes a method of preparing secondary lithium and lithium-ion batteries with improved coulombic efficiency, improved cycling and storage performance at elevated temperatures, and lower rates of transition metal dissolution. In accordance with the present invention, the positive electrode material is thermally treated at a temperature of between 50° C. and 120° C. to produce a passivating film having lithium ion conductivity. The present invention also includes a secondary lithium or lithium-ion cell having positive electrode material covered with a thermally-activated thin passivating film having lithium ion conductivity and a positive electrode material formed of particles of a lithium intercalation compound with a passivating film on the surface of the particles.Type: GrantFiled: April 6, 1999Date of Patent: April 17, 2001Assignee: FMC CorporationInventors: Vesselin Manev, Titus Faulkner, D. Wayne Barnette, John Francis Engel
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Patent number: 6114064Abstract: A novel method of preparing a spinel Li.sub.1+x Mn.sub.2-x O.sub.4 intercalation compound with low lattice distortion and a highly ordered and homogeneous structure for 4 V secondary lithium and lithium ion cells is provided. The method of preparing the spinel Li.sub.1+x Mn.sub.2-x O.sub.4 intercalation compound comprises mixing at least one manganese compound with at least one lithium compound and firing the mixture at three different temperature ranges with corresponding gas flow rates to form the spinel Li.sub.1+x Mn.sub.2-x O.sub.4 intercalation compounds. The spinel Li.sub.1+x Mn.sub.2-x O.sub.4 intercalation compounds have a mean X value of between about 0.01 and 0.05 and a full width at half maximum of the x-ray diffraction peaks at a diffraction angle 2.theta. of planes (400) and (440) using CuK.alpha..sub.1 rays of between about 0.10.degree. and 0.15.degree.. The spinel Li.sub.1+x Mn.sub.2-x O.sub.Type: GrantFiled: June 2, 1997Date of Patent: September 5, 2000Assignee: FMC CorporationInventors: Vesselin Manev, Titus Faulkner
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Patent number: 6040089Abstract: The present invention provides a positive electrode material for lithium and lithium-ion secondary cells which exhibits good cycleability, reversible specific capacity, and structural stability. The positive electrode material comprises a lithium multi metal oxide having a spinel structure and described by the general formula:Li.sub.1+X Mn.sub.2-Y M.sub.m.sbsb.1.sup.1 M.sub.m.sbsb.2.sup.2 . . . M.sub.m.sbsb.k.sup.k O.sub.4+Zwherein M.sup.1, M.sup.2, . . . M.sup.k are at least two cations different than lithium or manganese, selected from the group consisting of alkaline earth metals, transition metals, B, Al, Si, Ga and Ge;X, Y, m.sub.1,m.sub.2, . . . m.sub.k are numbers between 0 and 0.2;m.sub.1, m.sub.2 and Y are greater than 0;Z is a number between -0.1 and 0.2; andwherein the metals M.sup.1, M.sup.2, . . . M.sup.k and the corresponding values m.sub.1, m.sub.2, . . . m.sub.k satisfy the following equation and inequality: ##EQU1## wherein V.sub.1, V.sub.2, . . . V.sub.Type: GrantFiled: February 27, 1998Date of Patent: March 21, 2000Assignee: FMC CorporationInventors: Vesselin Manev, Titus Faulkner, Wayne Barnette, Yuan Gao
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Patent number: 5961949Abstract: A novel method of preparing a highly homogenous spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compound having a predetermined mean particle size and particle size distribution for 4 V secondary lithium and lithium ion cells is provided. The method comprises mixing at least one manganese compound having a predetermined particle size distribution with at least one lithium compound wherein the manganese compound has a mean particle size of between about 1 and 15 microns and the mean particle size of the lithium compound is less than that of the manganese compound. The mixture is then fired in one or more firing steps within specific temperature ranges to form the Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compound. Preferably, at least one firing step is at a temperature of between about 700.degree. C. and 900.degree. C. The Li.sub.1+X Mn.sub.2-X O.sub.Type: GrantFiled: June 6, 1997Date of Patent: October 5, 1999Assignee: FMC CorporationInventors: Vesselin Manev, Walter Ebner, William Thompson, Stephen Dow
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Patent number: 5792442Abstract: A novel method of preparing a spinel Li.sub.1+X Mn.sub.2-X O.sub.4 intercalation compound with low lattice distortion and a highly ordered and homogeneous structure for 4 V secondary lithium and lithium ion cells is provided. The method of preparing the spinel Li.sub.1+X Mn.sub.2-X O.sub.4 intercalation compound comprises mixing at least one manganese compound with at least one lithium compound and firing the mixture at three different temperature ranges with corresponding gas flow rates to form the spinel Li.sub.1+X Mn.sub.2-X O.sub.4 intercalation compounds. The spinel Li.sub.1+X Mn.sub.2-X O.sub.4 intercalation compounds have a mean X value of between about 0.01 and 0.05 and a full width at half maximum of the x-ray diffraction peaks at a diffraction angle 2.theta. of planes (400) and (440) using CuK.alpha..sub.1 rays of between about 0.10.degree. and 0.15.degree.. The spinel Li.sub.1+X Mn.sub.2-X O.sub.Type: GrantFiled: June 18, 1996Date of Patent: August 11, 1998Assignee: FMC CorporationInventors: Vesselin Manev, Titus Faulkner
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Patent number: 5789115Abstract: A novel method of preparing a highly homogenous spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compound having a predetermined mean particle size and particle size distribution for 4 V secondary lithium and lithium ion cells is provided. The method comprises mixing at least one manganese compound having a predetermined particle size distribution with at least one lithium compound wherein the manganese compound has a mean particle size of between about 1 and 15 microns and the mean particle size of the lithium compound is less than that of the manganese compound. The mixture is then fired in one or more firing steps within specific temperature ranges to form the Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compound. Preferably, at least one firing step is at a temperature of between about 700.degree. C. and 900.degree. C. The Li.sub.1+X Mn.sub.2-X O.sub.Type: GrantFiled: June 2, 1997Date of Patent: August 4, 1998Assignee: FMC CorporationInventors: Vesselin Manev, Walter Ebner, William Thompson, Stephen Dow
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Patent number: 5766800Abstract: A novel method of preparing a spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compound with low lattice distortion and a highly ordered and homogeneous structure for 4 V secondary lithium and lithium ion cells is provided. The method of preparing the spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compound comprises providing a spinel Li.sub.1+X Mn.sub.2-X O.sub.4 intercalation compound having a lithium to manganese mole ratio of between about 1.02:2 and 1.1:2 and firing the spinel at different temperature ranges with corresponding gas flow rates to form the spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compounds. The spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compounds have a mean X value of between about 0.01 and 0.05, a mean Y value of between about -0.02 and 0.04 and a full width at half maximum of the x-ray diffraction peaks at a diffraction angle 2.theta. of planes (400) and (440) using CuK.alpha..sub.1 rays of between about 0.08.degree. and 0.13.degree.. The spinel Li.sub.Type: GrantFiled: June 2, 1997Date of Patent: June 16, 1998Assignee: FMC CorporationInventors: Vesselin Manev, Titus Faulkner
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Patent number: 5718877Abstract: A novel method of preparing a spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compound with low lattice distortion and a highly ordered and homogeneous structure for 4 V secondary lithium and lithium ion cells is provided. The method of preparing the spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compound comprises providing a spinel Li.sub.1+X Mn.sub.2-X O.sub.4 intercalation compound having a lithium to manganese mole ratio of between about 1.02:2 and 1.1:2 and firing the spinel at different temperature ranges with corresponding gas flow rates to form the spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compounds. The spinel Li.sub.1+X Mn.sub.2-X O.sub.4+Y intercalation compounds have a mean X value of between about 0.01 and 0.05, a mean Y value of between about -0.02 and 0.04 and a full width at half maximum of the x-ray diffraction peaks at a diffraction angle 2.theta. of planes (400) and (440) using CuK.alpha..sub.1 rays of between about 0.08.degree. and 0.13.degree.. The spinel Li.sub.Type: GrantFiled: June 18, 1996Date of Patent: February 17, 1998Assignee: FMC CorporationInventors: Vesselin Manev, Titus Faulkner