Abstract: This positive electrode active material for non-aqueous electrolyte secondary batteries comprises: lithium transition metal oxide particles; a metal compound which contains a metal element M and adheres to the surfaces of the lithium transition metal oxide particles; and a lithium metal compound which contains lithium (Li) and the metal element M and adheres to the surfaces of the lithium transition metal oxide particles. In this connection, the metal element M is composed of at least one substance that is selected from among aluminum (Al), titanium (Ti), manganese (Mn), gallium (Ga), molybdenum (Mo), tin (Sn), tungsten (W) and bismuth (Bi).

Abstract: A positive electrode active material for a secondary battery, which is one aspect of the present disclosure, is characterized by including a lithium-containing composite oxide composed of secondary particles in which primary particles are aggregated, and by that the lithium-containing composite oxide contains Ni at 85 mol % or more with respect to the total molar amount of metal elements excluding lithium, and Al, the Al concentration in the vicinity of the surface of the secondary particles is higher than the Al concentration in the central portion of the secondary particles, and a metal element M (M is at least one of Mg, Ca, Sr, Na, K, Zr, Co, Nb, W, and Mo) at 0.01-2.0 mol % and sulfate ions at 0.02 mol % or more with respect to the molar amount of the lithium-containing composite oxide are present on the surface of the primary particles.

Abstract: A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure is provided with a positive electrode, a negative electrode and a nonaqueous electrolyte; the positive electrode contains a lithium transition metal composite oxide that contains Ni, Nb and M (M is at least one element selected from among Ca and Sr), said lithium transition metal composite oxide optionally containing Co; the contents of Ni, Nb, M and Co in the lithium transition metal composite oxide are respectively within specific ranges; the negative electrode comprises a negative electrode mixture layer that contains a negative electrode active material, and a coating film that is formed on the surface of the negative electrode mixture layer, while containing Nb and M; and the contents of Nb and M in the negative electrode are respectively within specific ranges.

Abstract: The method for manufacturing a positive electrode active material for a non-aqueous electrolyte secondary battery according to one embodiment of the present invention comprises: a first step for adding an alkaline solution having a tungsten compound dissolved therein to a lithium-metal composite oxide powder represented by general formula LizNi1-x-yCoxMyO2 (where 0?x?0.1, 0?y?0.1, and 0.97?z?1.20 are satisfied, and M is at least one type of element selected from among Mn, W, Mg, Mo, Nb, Ti, Si, and Al), and mixing same; and a second step for heating the mixture of the alkaline solution and the lithium-metal composite oxide powder at 100-600° C., wherein the amount of the alkaline solution to be added in the first step is 0.1-10 mass % with respect to the amount of the lithium-metal composite oxide powder.

Abstract: A positive electrode active material contains a lithium transition metal composite oxide that contains 85% by mole or more of Ni relative to the total number of moles of metal elements excluding Li and at least one metal element M1 that is selected from among Mg, Ti, Nb, Zr and V in an amount of 3% by mole or less relative to the total number of moles of metal elements excluding Li. The ratio of the concentration of metal element M1 contained in the shell of each primary particle of the composite oxide to the concentration of metal element M1 contained in the core is from 1.01 to 20; and at least one metal element M2 of Ca and Sr is on the surface of each primary particle in an amount of 1% by mole or less relative to the total number of moles of metal elements excluding Li.

Abstract: This positive electrode material comprises a lithium transition metal complex oxide which contains at least 80 mol % Ni in terms of the total mol number of metal elements excluding Li, and which has a total Co content of less than 5 mol %. The lithium transition metal complex oxide is formed as secondary particles obtained by aggregating primary particles, wherein at least one element A selected from Ca and Sr is present on the surface of the primary particles in the amount of 0.01-1 mol %, inclusive, in terms of the total mol number of the metal elements excluding Li. In addition, at least one element B selected from B, Zr, W, Al, Nb, Mo, and Ti is present on the surface of the secondary particles in the amount of 0.05-2 mol %, inclusive, in terms of the total mol number of the Ni in the complex oxide.

Abstract: The method for manufacturing a positive electrode active material for a non-aqueous electrolyte secondary battery according to one embodiment of the present invention comprises: a first step for adding an alkaline solution having a tungsten compound dissolved therein to a lithium-metal composite oxide powder represented by general formula LizNi1-x-yCoxMyO2 (where 0?x?0.1, 0?y?0.1, and 0.97?z?1.20 are satisfied, and M is at least one type of element selected from among Mn, W, Mg, Mo, Nb, Ti, Si, and Al), and mixing same; and a second step for heating the mixture of the alkaline solution and the lithium-metal composite oxide powder at 100-600° C., wherein the amount of the alkaline solution to be added in the first step is 0.1-10 mass % with respect to the amount of the lithium-metal composite oxide powder.

Abstract: This positive electrode has a positive electrode collector and a positive electrode mixture layer formed on the surface of the positive electrode collector. The positive electrode mixture layer contains a lithium transition metal composite oxide containing 85 mol % or more of Ni and 1-15 mol % inclusive of Al relative to the total number of moles of metal elements other than Li, and in which the total amount of Ni, Al, and Mn contained is 99.9 mol % or more. The density of the positive electrode active material in the positive electrode mixture layer is 3.45 g/cm3 or higher. In an observation of a cross-section of the positive electrode using a scanning electron microscope, the proportion of the cross-section area of the lithium transition metal composite oxide devoid of cracks relative to the cross-section area of the lithium transition metal composite oxide exposed on the cross-section is 51% or higher.

Abstract: A positive electrode for a non-aqueous electrolyte secondary battery contains a first particle and a second particle. The first particle contains an electrochemically active positive-electrode active material, and the positive-electrode active material contains a lithium transition metal oxide. The second particle contains an electrochemically inactive metal oxide. An electrochemically inactive phosphate adheres to the surface of the second particle.

Abstract: A positive electrode active material which predominantly includes lithium transition metal composite oxide particles containing Ni and Al, and which has a low charge transfer resistance and thus allows the battery capacity to be increased. The composite oxide particles contain 5 mol % or more Al relative to the total molar amount of metal elements except Li, include a particle core portion and an Al rich region on or near the surface of the composite oxide particle wherein the Al concentration in the particle core portion is not less than 3 mol % and the Al concentration in the Al rich region is 1.3 times or more greater than the Al concentration in the particle core portion. The composite oxide particles contain 0.04 mol % or more sulfate ions relative to the total molar amount of the particles.

Abstract: Positive electrode active material contains: a lithium transition metal oxide that has a layered structure and contains Ni, Nb and a metal element other than Nb having a valence of at least four, also Co as an optional element; and external additive particles that contain at least one element selected from among W, B and Al and are adhered to the particle surface of the lithium transition metal oxide. The percentage of Ni, Nb and Co with respect to the total quantity of metal elements excluding Li in the lithium transition metal oxide satisfy the following ranges: 90 mol. %?Ni<100 mol. %, 0 mol. %<Nb?3 mol. %, and Co?2 mol. %. The percentages of W, B and Al in the external additive particles with respect to the total quantity of the lithium transition metal oxide fall within the range of 0.01 mol. % to 0.3 mol. %.

Abstract: A positive electrode active material for batteries wherein the ratio of Ni, the ratio of Nb and the ratio of Co relative to the total amount of metal elements excluding Li in a lithium transition metal oxide are respectively within the range of 90 mol %?Ni<100 mol %, the range of 0 mol %<Nb?3 mol % and the range of Co?2 mol %; the ratio of metal elements excluding Li in a Li layer of a layered structure relative to the total amount of metal elements excluding Li in the lithium transition metal oxide is within the range of from 0.9 mol % to 2.5 mol % (inclusive); and regarding the lithium transition metal oxide, the half-value width n of the diffraction peak of the (208) plane of the X-ray diffraction pattern as determined by X-ray diffractometry is within the range of 0.30°?n?0.50°.

Abstract: A positive electrode active substance for a non-aqueous electrolyte secondary battery according to this embodiment is characterized by having a lithium transition metal oxide that contains Ni and Al, wherein: Ni content in the lithium transition metal oxide is 91 mol % or greater with respect to the total number of moles of metal elements excluding Li; the lithium transition metal oxide further contains 0.02 mol % or more of sulphate ion; and the lithium transition metal oxide, when subjected to X ray diffraction, produces an X ray diffraction pattern in which the half width n of the diffraction peak of the (208) surface is 0.30°?n?0.50°.

Abstract: The method for manufacturing a positive electrode active material for a non-aqueous electrolyte secondary battery according to one embodiment of the present invention comprises: a first step for adding an alkaline solution having a tungsten compound dissolved therein to a lithium-metal composite oxide powder represented by general formula LizNi1-x-yCoxMyO2 (where 0?x?0.1, 0?y?0.1, and 0.97?z?1.20 are satisfied, and M is at least one type of element selected from among Mn, W, Mg, Mo, Nb, Ti, Si, and Al), and mixing same; and a second step for heating the mixture of the alkaline solution and the lithium-metal composite oxide powder at 100-600° C., wherein the amount of the alkaline solution to be added in the first step is 0.1-10 mass % with respect to the amount of the lithium-metal composite oxide powder.

Abstract: This positive electrode active material for non-aqueous electrolyte secondary batteries comprises: lithium transition metal oxide particles; a metal compound which contains a metal element M and adheres to the surfaces of the lithium transition metal oxide particles; and a lithium metal compound which contains lithium (Li) and the metal element M and adheres to the surfaces of the lithium transition metal oxide particles. In this connection, the metal element M is composed of at least one substance that is selected from among aluminum (Al), titanium (Ti), manganese (Mn), gallium (Ga), molybdenum (Mo), tin (Sn), tungsten (W) and bismuth (Bi).

Abstract: A positive electrode active material which predominantly includes lithium transition metal composite oxide particles containing Ni and Al, and which has a low charge transfer resistance and thus allows the battery capacity to be increased. The composite oxide particles contain 5 mol % or more Al relative to the total molar amount of metal elements except Li, include a particle core portion and an Al rich region on or near the surface of the composite oxide particle wherein the Al concentration in the particle core portion is not less than 3 mol % and the Al concentration in the Al rich region is 1.3 times or more greater than the Al concentration in the particle core portion. The composite oxide particles contain 0.04 mol % or more sulfate ions relative to the total molar amount of the particles.

Abstract: A positive electrode for a non-aqueous electrolyte secondary battery contains a first particle and a second particle. The first particle is an electrochemically active positive-electrode active material, and the positive-electrode active material contains a lithium transition metal oxide. The second particle is an electrochemically inactive metal oxide and has a BET specific surface area in the range of 10 to 100 m2/g and a sphericity of 0.8 or more.

Abstract: A positive electrode for a non-aqueous electrolyte secondary battery contains a first particle and a second particle. The first particle contains an electrochemically active positive-electrode active material, and the positive-electrode active material contains a lithium transition metal oxide. The second particle contains an electrochemically inactive metal oxide. An electrochemically inactive phosphate adheres to the surface of the second particle.

Abstract: A solid electrolytic capacitor includes a capacitor element having an anode body that is a porous sintered body having a hexahedral shape, an anode lead, a dielectric layer, and a solid electrolyte layer. One end of the anode lead is embedded into the anode body from a first surface of the anode body. The anode body includes a second surface and a third surface which are opposite to each other. The anode body has a first region including the second surface, a second region including the third surface, and a third region interposed between the first region and the second region. The third region has lower density than each of the first region and the second region. An average thickness T3 of the third region and a thickness TL of the anode lead satisfy a relationship T3<TL. A surface of the anode lead is in contact with at least one of the first region and the second region.

Abstract: A solid electrolytic capacitor includes a capacitor element having an anode body that is a porous sintered body having a hexahedral shape, an anode lead, a dielectric layer, and a solid electrolyte layer. One end of the anode lead is embedded into the anode body from a first surface of the anode body. The anode body includes a second surface and a third surface which are opposite to each other. The anode body has a first region including the second surface, a second region including the third surface, and a third region interposed between the first region and the second region. The third region has lower density than each of the first region and the second region. An average thickness T3 of the third region and a thickness TL of the anode lead satisfy a relationship T3<TL. A surface of the anode lead is in contact with at least one of the first region and the second region.