Abstract: A positive electrode active material which is to be included in this nonaqueous electrolyte secondary battery and contains a lithium-containing complex oxide having a prescribed composition which has a layered evaporitic structure, wherein: the lithium-containing complex oxide contains secondary particles formed by clumping primary particles with one another; and a sulfonic acid compound represented by general formula I, one or more types of element selected from Ca and Sr, and one or more types of element selected from W, Mo, Ti, Si, Nb and Zr are present on the surface of the secondary particles or at the interface between the primary particles. (In the formula, A is a Group 1 element or a Group 2 element, R is a hydrocarbon group, and n is 1 or 2.

Abstract: The present invention provides a positive electrode active material which has high capacity and improved initial charge and discharge efficiency. This positive electrode active material, which is contained in nonaqueous electrolyte secondary batteries, contains a lithium-containing composite oxide that has a layered rock salt structure and a sulfonic acid compound that is present on the surface of the lithium-containing composite oxide; the lithium-containing composite oxide contains 50% by mole or more of Ni, 0% by mole to 15% by mole of Co and 0% by mole to 4% by mole of Al relative to the total number of moles of metal elements other than Li; and the sulfonic acid compound is represented by general formula I. (In the formula, A represents a group 1 element or a group 2 element; R represents a hydrocarbon group; and n represents 1 or 2.

Abstract: Provided is a positive electrode active material having high capacity and reduced reaction resistance of a battery. This positive electrode active material for a non-aqueous electrolyte secondary battery includes a lithium-containing composite oxide that has a layered rock salt structure and a sulfonic acid compound present on the surface of the lithium-containing composite oxide, wherein: the lithium-containing composite oxide contains at least 85 mol % of Ni, at least 4 mol % of Al, and 0-1.5 mol % of Co relative to the total mole number of metal elements excepting Li; and the sulfonic acid compound is represented by general formula I. (In the formula, A is a group 1 element or a group 2 element, R is a hydrocarbon group, and n is 1 or 2.

Abstract: Provided is a positive electrode active material having a high capacity and improved output characteristics. The positive electrode active material included in this non-aqueous electrolyte secondary battery includes a lithium-containing complex oxide having a layered rock salt structure, and a sulfonic acid compound that is present on the surface of the lithium-containing complex oxide. The lithium-containing complex oxide contains 80 mol % or more of Ni, 1.5 mol % or more of Co, and 4 mol % or more of Al based on the total molar number of metal elements excluding Li. The sulfonic acid compound is represented by the general formula I. (In the formula, A is a Group 1 element or a Group 2 element, R is a hydrocarbon group, and n is 1 or 2.

Abstract: A wireless power supply system includes: a primary power-supplying coil which is a power-supplying coil capable of wirelessly supplying electric power to another power-supplying coil; a first machine that supports the primary power-supplying coil; a secondary power-supplying coil which is a power-supplying coil wirelessly supplied with electric power from another power-supplying coil; and a second machine that can move while supporting the secondary power-supplying coil. The relative positional relationship or the relative attitudinal relationship between the first machine and the second machine can be adjusted corresponding to the movement or change in attitude of the second machine so that a state in which electric power is wirelessly supplied from the primary power-supplying coil to the secondary power-supplying coil is maintained.

Abstract: A wireless power supply system includes: a primary power-supplying coil which is a power-supplying coil capable of wirelessly supplying electric power to another power-supplying coil; a first machine that supports the primary power-supplying coil; a secondary power-supplying coil which is a power-supplying coil wirelessly supplied with electric power from another power-supplying coil; and a second machine that can move while supporting the secondary power-supplying coil. The relative positional relationship or the relative attitudinal relationship between the first machine and the second machine can be adjusted corresponding to the movement or change in attitude of the second machine so that a state in which electric power is wirelessly supplied from the primary power-supplying coil to the secondary power-supplying coil is maintained.

Abstract: A movement mechanism includes a plurality of primary power-supplying coils each serving as a power-supplying coil that is able to supply power to another power-supplying coil in a wireless manner and arranged along an imaginary line parallel to the movement path, a secondary power-supplying coil serving as a power-supplying coil configured to receive power from another power-supplying coil in a wireless manner; and a movement structure serving as a structure configured to support the secondary power-supplying coil and to move along the movement path, wherein power is able to be supplied in a wireless manner to the secondary power-supplying coil from one or more of the primary power-supplying coils sequentially selected from among the plurality of primary power-supplying coils depending on an arrangement sequence when the movement structure moves along the movement path.

Abstract: A wireless power supply system includes: a primary power-supplying coil which is a power-supplying coil capable of wirelessly supplying electric power to another power-supplying coil; a first machine that supports the primary power-supplying coil; a secondary power-supplying coil which is a power-supplying coil wirelessly supplied with electric power from another power-supplying coil; and a second machine that can move while supporting the secondary power-supplying coil. The relative positional relationship or the relative attitudinal relationship between the first machine and the second machine can be adjusted corresponding to the movement or change in attitude of the second machine so that a state in which electric power is wirelessly supplied from the primary power-supplying coil to the secondary power-supplying coil is maintained.