Patent application number | Description | Published |
20080237536 | PRODUCTION METHOD OF ACTIVE MATERIAL, AND ACTIVE MATERIAL - A production method of an active material, and the active material are provided to realize an active material containing metal-containing particles and being capable of achieving satisfactory cycle performance and rate performance. The active material is produced by a method of polymerizing a mixture of a metal ion, a hydroxy acid, and a polyol to obtain a polymer, and a step of carbonizing the polymer. The active material used is one having a carbonaceous porous material, and metal particles and/or metal oxide particles supported in pores of the carbonaceous porous material, and particle diameter of the metal-containing particles are in the range of 10 to 300 nm. | 10-02-2008 |
20080241665 | ALL-SOLID-STATE LITHIUM-ION SECONDARY BATTERY AND PRODUCTION METHOD THEREOF - An all-solid-state lithium-ion secondary battery has an anode, a cathode, a solid electrolyte layer disposed between the anode and the cathode, and at least one of a first mixed region formed at an interface between the anode and the solid electrolyte layer and containing a constituent material of the anode and a constituent material of the solid electrolyte layer, and a second mixed region formed at an interface between the cathode and the solid electrolyte layer and containing a constituent material of the cathode and a constituent material of the solid electrolyte layer. | 10-02-2008 |
20090191457 | METHOD OF MANUFACTURING LITHIUM-ION SECONDARY BATTERY, ELECTROLYTIC SOLUTION, AND LITHIUM-ION SECONDARY BATTERY - A method of manufacturing a lithium-ion secondary battery includes an electrolytic solution making step of making an electrolytic solution by mixing at least an organic solvent and an electrolytic salt together, an electrode insertion step of inserting an anode and a cathode into an outer case, and a liquid injection step of injecting the electrolytic solution into the outer case; wherein the electrolytic solution making step or the liquid injection step adds a compound having an alkyl group with a carbon number of 10 or greater and an epoxy, vinyl, or silanol group at a terminal to the electrolytic solution. | 07-30-2009 |
20100078591 | ACTIVE MATERIAL AND METHOD OF MANUFACTURING ACTIVE MATERIAL - An active material capable of forming an electrochemical device excellent in its discharge capacity and rate characteristic is provided. The active material in accordance with a first aspect of the present invention comprises a compound particle containing a compound having a composition represented by the following chemical formula (1), a carbon layer covering the compound particle, and a carbon particle. The active material in accordance with a second aspect of the present invention comprises a carbon particle and a compound particle having an average primary particle size of 0.03 to 1.4 μm, being carried by the carbon particle, and containing a compound represented by the following chemical formula (1): | 04-01-2010 |
20100081058 | ACTIVE MATERIAL AND POSITIVE ELECTRODE AND LITHIUM-ION SECOND BATTERY USING SAME - An active material contains a triclinic LiVOPO | 04-01-2010 |
20100216022 | ELECTRODE, METHOD OF MANUFACTURING ELECTRODE, AND LITHIUM-ION SECONDARY BATTERY - An electrode which can improve the cycle characteristic of a lithium-ion secondary battery is provided. The electrode of the present invention comprises a current collector and an active material layer, formed on the current collector, containing an active material and polybenzimidazole. | 08-26-2010 |
20100233058 | METHOD OF MANUFACTURING ACTIVE MATERIAL - The present invention provides a method of manufacturing an active material which can form an electrochemical device excellent in discharge capacity. The method of manufacturing an active material in accordance with the present invention comprises a hydrothermal synthesis step of heating a mixture including a lithium compound, a metal compound containing one species selected from the group consisting of Fe, Mn, Co, Ni, and V, a phosphorus compound, and water within a reactor while keeping an internal pressure of the reactor at 0.3 MPa or lower by ventilating the inside of the reactor to the outside, and closing the reactor at a time when the temperature of the mixture reaches 100 to 150° C.; and a firing step of firing the mixture after the hydrothermal synthesis step. | 09-16-2010 |
20100233541 | METHOD OF MANUFACTURING ACTIVE MATERIAL, ACTIVE MATERIAL, ELECTRODE USING THE SAME, AND LITHIUM-ION SECONDARY BATTERY EQUIPPED THEREWITH - A method of manufacturing an active material having a sufficient discharge capacity at a high discharge current density, an active material obtained thereby, an electrode using the same, and a lithium-ion secondary battery equipped therewith are provided. The method of manufacturing an active material comprises a step of polymerizing a mixture containing an Fe ion, an Li ion, a PO | 09-16-2010 |
20100233544 | METHOD OF MANUFACTURING ACTIVE MATERIAL, ACTIVE MATERIAL, ELECTRODE, AND LITHIUM-ION SECONDARY BATTERY - The present invention provides a method of manufacturing an active material comprising both α-LiVOPO | 09-16-2010 |
20100233545 | ACTIVE MATERIAL, METHOD OF MANUFACTURING ACTIVE MATERIAL, ELECTRODE, AND LITHIUM-ION SECONDARY BATTERY - The first aspect of the invention provides a method of manufacturing an active material capable of selectively synthesizing β-LiVOPO | 09-16-2010 |
20110052473 | METHOD OF MANUFACTURING ACTIVE MATERIAL - Methods of manufacturing an active material capable of improving the discharge capacity of a lithium-ion secondary battery are provided. The first method of manufacturing an active material comprises a hydrothermal synthesis step of heating a mixture containing a lithium source, a phosphate source, a vanadium source, water, and a reducing agent to 100 to 195° C. under pressure; and a heat treatment step of heating the mixture to 500 to 700° C. after the hydrothermal synthesis step. The hydrothermal synthesis step adjusts the ratio [P]/[V] of the number of moles of phosphorus [P] contained in the mixture before heating to the number of moles of vanadium [V] contained in the mixture before heating to 0.9 to 1.2. The second method of manufacturing an active material comprises a hydrothermal synthesis step of heating a mixture containing a lithium source, a phosphate source, a vanadium source, water, and a reducing agent to 200 to 300° C. under pressure and adjusts the ratio [P]/[V] of the number of moles of phosphorus [P] contained in the mixture before heating to the number of moles of vanadium [V] contained in the mixture before heating to 0.9 to 1.5. | 03-03-2011 |
20110052992 | ACTIVE MATERIAL, LITHIUM-ION SECONDARY BATTERY, AND METHOD OF MANUFACTURING ACTIVE MATERIAL - An active material which can improve the discharge capacity of a lithium-ion secondary battery is provided. The active material of the present invention contains a rod-shaped particle group having a β-type crystal structure of LiVOPO | 03-03-2011 |
20110052995 | ACTIVE MATERIAL, ELECTRODE CONTAINING THE SAME, LITHIUM SECONDARY BATTERY PROVIDED THEREWITH AND METHOD FOR MANUFACTURE OF THE ACTIVE MATERIAL - A method for manufacturing an active material comprising:
| 03-03-2011 |
20110052996 | LITHIUM-ION SECONDARY BATTERY - A lithium-ion secondary battery comprises a negative electrode active material, a positive electrode active material, and an electrolytic solution. The negative electrode active material contains elemental silicon or a silicon-containing alloy. The electrolytic solution has a lithium salt and a solvent. The solvent contains a cyclic carbonate, a chain carbonate, fluoroethylene carbonate represented by the formula (1), and 1,3-propane sultone. In the electrolytic solution, fluoroethylene carbonate has a mass concentration Cf of 0.1 to 3 mass %, 1,3-propane sultone has a mass concentration Cp of 0.1 to 3 mass %, and Cf>Cp. | 03-03-2011 |
20110072649 | METHOD OF MANUFACTURING ACTIVE MATERIAL AND METHOD OF MANUFACTURING LITHIUM-ION SECONDARY BATTERY - The first aspect of the present invention provides a method of manufacturing an active material capable of improving the discharge capacity of a lithium-ion secondary battery. The method of manufacturing an active material in accordance with the first aspect of the present invention comprises the steps of heating a phosphate source, a vanadium source, and water so as to form an intermediate containing phosphorus and vanadium and having a specific surface area of at least 0.1 m | 03-31-2011 |
20110311868 | ACTIVE MATERIAL, ELECTRODE CONTAINING SAME, LITHIUM-ION SECONDARY BATTERY WITH THE ELECTRODE, AND METHOD OF MANUFACTURING ACTIVE MATERIAL - The method of manufacturing an active material in accordance with the first aspect of the invention yields an active material containing LiVOPO | 12-22-2011 |
20130130106 | ACTIVE MATERIAL, ELECTRODE CONTAINING THE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY INCLUDING THE ELECTRODE, AND METHOD FOR MAKING ACTIVE MATERIAL - To provide an active material from which a sufficient discharge capacity is obtained, an electrode containing the active material, a lithium secondary battery including the electrode, and a method for making an active material. A method for making an active material includes a temperature elevation step of heating a mixture containing a lithium source, a pentavalent vanadium source, a phosphoric acid source, water, and a reductant in a hermetically sealed container at a temperature elevation rate T1 from 25° C. to 110° C. and then at a temperature elevation rate T2 from 110° C. to a designated temperature of 200° C. or more, in which T1>T2; T1=0.5 to 10° C./min; and T2=0.1 to 2.2° C./min. | 05-23-2013 |
20130168599 | PRECURSOR, PROCESS FOR PRODUCTION OF PRECURSOR, PROCESS FOR PRODUCTION OF ACTIVE MATERIAL, AND LITHIUM ION SECONDARY BATTERY - Active material is obtained by sintering a precursor, has a layered structure and is represented by the following formula (1). The temperature at which the precursor becomes a layered structure compound in its sintering in atmospheric air is 450° C. or less. Alternatively, the endothermic peak temperature of the precursor when its temperature is increased from 300° C. to 800° C. in its differential thermal analysis in the atmospheric air is 550° C. or less. | 07-04-2013 |
20130209871 | ACTIVE MATERIAL, PROCESS FOR PRODUCTION OF ACTIVE MATERIAL, AND LITHIUM ION SECONDARY BATTERY - An active material having high capacity and excellent charging/discharging cycle durability at high potential is provided. The active material has a layered structure and is represented by the following composition formula (1): | 08-15-2013 |
20130256591 | NEGATIVE ELECTRODE ACTIVE MATERIAL, ELECTRODE CONTAINING THE SAME, AND LITHIUM ION SECONDARY BATTERY HAVING THE ELECTRODE - A negative electrode active material mainly contains silicon and silicon oxide. In the negative electrode active material, an Ar-laser Raman spectrum thereof includes a peak A corresponding to 950±30 cm | 10-03-2013 |
20130256592 | LITHIUM-ION SECONDARY BATTERY - The lithium-ion secondary battery in which a positive electrode contains Li | 10-03-2013 |
20130260226 | NONAQUEOUS ELECTROLYTE FOR LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY - A nonaqueous electrolyte for a lithium-ion secondary battery containing 0.1 ppm to 20 ppm of vanadium in terms of vanadium ions, and containing cyclic carbonate and chain carbonate is used. | 10-03-2013 |
20130260228 | LITHIUM-ION SECONDARY BATTERY - The lithium-ion secondary battery includes a positive electrode containing an active material made of a compound including lithium and a transition metal; an electrolyte containing 5 to 30 ppm of hydrofluoric acid; and a negative electrode containing 1 to 100 ppm of vanadium. | 10-03-2013 |
20130260242 | NEGATIVE ELECTRODE FOR LITHIUM-ION SECONDARY BATTERY AND LITHIUM-ION SECONDARY BATTERY - The negative electrode for lithium-ion secondary battery is used in which a product of tensile strength and thickness of a negative electrode having a negative electrode active material layer containing silicon and silicon oxide as main components is 3.8 to 9.0 N/mm and a value obtained by dividing the product of the tensile strength and the thickness of the negative electrode by a product of tensile strength and thickness of a negative electrode current collector is 1.06 to 1.29. | 10-03-2013 |
20130260243 | NEGATIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY - A negative electrode includes a negative electrode active material layer containing a negative electrode active material mainly containing silicon and silicon oxide. In the negative electrode, the ratio of the film thickness of the negative electrode active material layer to the particle size distribution D99 is in the range of 1.2 to 2.0, the value of the D99 is in the range of 7 to 27 μm, and the negative electrode active material layer has a density ranging from 1.2 to 1.6 g/cm | 10-03-2013 |
20130260247 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery includes a positive electrode including a positive electrode active material having a composition represented by the formula (1) | 10-03-2013 |
20130260248 | ACTIVE MATERIAL AND LITHIUM ION SECONDARY BATTERY - An active material has a layered structure and a composition represented by the following formula (1) Li | 10-03-2013 |
20130260253 | POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - A positive electrode material for a lithium ion secondary battery contains a first compound represented by Li | 10-03-2013 |
20130260256 | LITHIUM-ION SECONDARY BATTERY - In the invention, a lithium-ion secondary battery, in which a value obtained by dividing average 3% modulus strength of a separator by average 3% modulus strength of a negative electrode including a negative electrode active material layer containing silicon and silicon oxide as a main component is 0.079 or less, is used. | 10-03-2013 |
20130260261 | NONAQUEOUS ELECTROLYTIC SOLUTION AND LITHIUM ION SECONDARY BATTERY - A nonaqueous electrolytic solution includes a cyclic carbonate and a chain carbonate, and contains a glycol sulfate derivative represented by formula (I) below and fluoroethylene carbonate: | 10-03-2013 |
20130330261 | ACTIVE MATERIAL AND POSITIVE ELECTRODE AND LITHIUM-ION SECOND BATTERY USING SAME - A method for manufacturing an active material containing a triclinic LiVOPO | 12-12-2013 |
20140001413 | ACTIVE MATERIAL, ELECTRODE, LITHIUM ION SECONDARY BATTERY, AND METHOD FOR MANUFACTURING ACTIVE MATERIAL | 01-02-2014 |
20140004416 | ACTIVE MATERIAL, METHOD FOR MANUFACTURING ACTIVE MATERIAL, ELECTRODE, LITHIUM ION SECONDARY BATTERY, AND METHOD FOR MANUFACTURING LITHIUM ION SECONDARY BATTERY | 01-02-2014 |
20140004417 | ACTIVE MATERIAL, METHOD FOR MANUFACTURING ACTIVE MATERIAL, ELECTRODE, AND LITHIUM ION SECONDARY BATTERY | 01-02-2014 |
20140056624 | IMAGE FORMING APPARATUS - A light irradiation unit forms an electrostatic latent image pattern on a photosensitive member by irradiating the photosensitive member and a shielding unit with light. A detection unit detects, in a rotation direction of the photosensitive member, timing at which a surface potential of the photosensitive member changes depending on displacement of the electrostatic latent image pattern in an axial direction of the photosensitive member. | 02-27-2014 |
20140170496 | POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM-ION SECONDARY BATTERY - A positive electrode active material contains a compound represented by a chemical formula LiVOPO | 06-19-2014 |
20150047767 | ALL-SOLID-STATE LITHIUM-ION SECONDARY BATTERY AND PRODUCTION METHOD THEREOF - A method of producing an all-solid-state lithium-ion secondary battery including forming primary sintered bodies of an anode, a cathode, and a solid electrolyte layer; disposing the primary sintered body of the solid electrolyte layer between the primary sintered bodies of the anode and the cathode; forming a laminate of the primary sintered bodies and at least one of a first intermediate layer disposed between the anode and the solid electrolyte layer, and a second intermediate layer disposed between the cathode and the solid electrolyte layer; and firing the laminate to obtain a sintered body including an anode, a solid electrolyte layer, and a cathode, and at least one of a first intermediate layer and a second intermediate layer. In the resulting all-solid-state lithium-ion secondary battery, the first and second intermediate layers have a particle size that is smaller than that of the anode, cathode, and solid electrolyte layer. | 02-19-2015 |
20150064558 | ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERY, AND LITHIUM ION SECONDARY BATTERY - To provide an active material having high capacity and excellent cycle characteristics. An active material has a layered crystal structure and is expressed by a compositional formula (1) Li | 03-05-2015 |