Abstract: A working vehicle includes a vehicle body, a traveling device to support the vehicle body such that the vehicle body is allowed to travel, and a height changing mechanism to change a height of the vehicle body that is a distance of the vehicle body from a ground surface. The height changing mechanism is configured to change the height of the vehicle body to any height between a first height and a second height higher than the first height.

Abstract: Provided is an information search system by which high-speed search is possible commonly used across a plurality of districts, the system including: a database (12) that stores a plurality of pieces of information that are text-searchable; a query sentence acceptance unit (26) that accepts a query sentence; an inputted search keyword extractor (44) that extracts an inputted search keyword from the query sentence; a retrieval executor (40) that executes retrieval processing from the database using the inputted search keyword; a local management apparatus (100) that stores district material in a local database (104); and an information management apparatus (110) that executes character extraction processing on the material stored in the local database and converts a file format of the material according to a size thereof, stores the material in a temporary memory as stored material, and outputs the stored material to the database.

Abstract: An all solid battery includes a multilayer body having a substantially rectangular parallelepiped shape, in which a first electrode layer including a first electrode and a first margin portion and a second electrode layer including a second electrode different from the first electrode and a second margin portion are stacked in multiple layers with a solid electrolyte layer sandwiched therebetween. Among four side faces other than an upper face and a lower face at ends of the multilayer body in a stacking direction, the first margin portion is arranged so as to be exposed to first two side faces facing each other, the first electrode is extended to second two side faces other than the first two side faces, the second margin portion is arranged so as to be exposed to the second two side faces, and the second electrode is extended to the first two side faces.

Abstract: A negative electrode active material is provided. A composition is expressed by a formula AlNb11-xMxO29. 0.5<x<5 is satisfied. The M is a transition metal element with a valence of 4 or more.

Abstract: An information search system, including: a database (12); a query sentence acceptance unit (26) that accepts a query sentence; an inputted search keyword extractor (44) that extracts an inputted search keyword from the query sentence; a shared keyword dictionary (30) in which relevant keywords are registered in association with each other; a local keyword dictionary (102) in which district keywords used in particular districts are registered; a candidate search keyword reader (32) that reads out a keyword that is relevant to the inputted search keyword; and a retrieval executor (40) that executes retrieval processing from the database using the inputted search keyword, wherein, in a case in which the inputted search keyword is not registered in the local keyword dictionary, the candidate search keyword reader refers to the shared keyword dictionary, so as to read out a keyword that is relevant to the inputted search keyword.

Abstract: A negative electrode active material, characterized in that a composition formula of the negative electrode active material is TiTa2?xMxO7, 0.2?x?1.0, and M includes at least Nb.

Abstract: An all solid battery includes: an oxide-based solid electrolyte layer; a first electrode provided on a first main face of the solid electrolyte layer; a second electrode provided on a second main face of the solid electrolyte layer, wherein the solid electrolyte layer is a sintered structure of solid electrolyte powder, wherein the solid electrolyte powder has D10% diameter of 0.05 ?m or more and 0.6 ?m or less, D50% diameter of 0.08 ?m or more and 1.5 ?m or less, D90% diameter of 4 ?m or less, and a BET value of 3 m2/g or more and 20 m2/g or less.

Abstract: A negative electrode active material is expressed by a composition formula of TiTa2?xMxO7. x is less than 0.20. Ti/(Ta+M) ratio is 0.50 or more and 0.56 or less.

Abstract: A display apparatus with a novel structure or a display system with a novel structure is provided. The display system includes a first display apparatus capable of AR display and a second display apparatus. The first display apparatus includes a first display portion displaying a first image superimposed on a transmission image. The second display apparatus includes a second display portion. The first display apparatus has a function of obtaining positional information of the second display portion. A display position of the first image is determined on the basis of the positional information of the second display portion.

Abstract: An all solid battery includes: a solid electrolyte layer of which a main component is oxide-based solid electrolyte; a first electrode layer that is provided on a first main face of the solid electrolyte layer and includes an active material; and a second electrode layer that is provided on a second main face of the solid electrolyte layer and includes an active material, wherein at least one of the first electrode layer and the second electrode layer includes an aggregate of carbon particles and a cavity, wherein the aggregate demarcates at least a part of the cavity.

Abstract: An all solid battery includes a solid electrolyte layer including a first solid electrolyte, a positive electrode layer provided on a first main face of the solid electrolyte layer and including a positive electrode active material and a second solid electrolyte, and a negative electrode layer provided on a second main face and including a negative electrode active material and a third solid electrolyte. In one of the positive electrode layer or the negative electrode layer, an average grain size of the second or the third solid electrolyte is 2.5 ?m or less, and an average grain size ratio of an average rain size of the positive electrode active material to an average grain size of the second solid electrolyte or an average grain size ratio of the negative electrode active material to an average grain size of the third solid electrolyte is 0.4 or more and 10 or less.

Abstract: An all-solid battery includes: a multilayer structure that includes a plurality of first electrodes and a plurality of second electrodes, and has a first side face and a second side face adjacent to each other, the plurality of first electrodes and the plurality of second electrodes being alternately stacked with solid electrolyte layers interposed between the plurality of first electrodes and the plurality of second electrodes; a first extraction part exposed on the first side face, the first extraction part being a part of the first electrode; a second extraction part exposed on the second side face, the second extraction part being a part of the second electrode; a first external electrode coupled to the first extraction part on the first side face; and a second external electrode coupled to the second extraction part on the second side face.

Abstract: An all solid battery includes a multilayer chip in which plurality of internal electrodes are alternately exposed to two side faces. A thickness SE of a solid electrolyte layer is 1 ?m or more and 50 ?m or less in an intersection portion in which two internal electrodes next to each other connected to different external electrodes overlap with each other. Thicknesses EL1 and EL2 of the two internal electrodes are 1 ?m or more and 200 ?m or less. In one of two non-intersection portions, a length EM from one of the pair of external electrodes contacting the one of the two non-intersection portions to an internal electrode spaced from the one of the pair of external electrodes in a distance direction is 50 ?m or more and 800 ?m or less. EM/(SE+EL1/4+EL2/4) is 20 or less.

Abstract: An all solid battery includes a solid electrolyte layer, a positive electrode layer that includes a positive electrode active material and a negative electrode active material, and a negative electrode layer that includes a positive electrode active material and a negative electrode active material, wherein a relationship “SCathode>SAnode” is satisfied, when a ratio of the positive electrode active material of the positive electrode layer is a ratio A1, a ratio of the negative electrode active material of the positive electrode layer is a ratio B1, a ratio of the positive electrode active material of the negative electrode layer is a ratio A2, a ratio of the negative electrode active material of the negative electrode layer is a ratio B2, SCathode is A1/(A1+B1), and SAnode is A2/(A2+B2).

Abstract: An all solid battery includes a solid electrolyte layer of a phosphate-based material having a NASICON structure, a positive electrode layer that includes a Co-containing phosphate-based positive electrode active material and a Co-containing phosphate-based solid electrolyte, and a negative electrode layer that includes a negative electrode active material and a solid electrolyte not containing Co.

Abstract: An all solid battery includes a multilayer structure in which solid electrolyte layers and internal electrodes are alternately stacked, the plurality of internal electrodes including an electrode active material and a carbon material, the multilayer structure having a rectangular parallelepiped shape, the plurality of internal electrodes being alternately exposed to two different faces of the multilayer structure, a first cover layer provided on an upper face of the multilayer structure in a stacking direction, and a second cover layer provided on a lower face of the multilayer structure in the stacking direction. Each thickness of the plurality of internal electrodes is equal to or more than each thickness of the plurality of solid electrolyte layers. Vickers hardness of the plurality of solid electrolyte layers and Vickers hardness of the first and second cover layers are larger than Vickers hardness of the plurality of internal electrodes.

Abstract: An all-solid battery includes: a solid electrolyte layer mainly composed of oxide-based solid electrolyte; a first electrode layer formed on a first principal face of the solid electrolyte layer, the first electrode layer containing an active material; a second electrode layer formed on a second principal face of the solid electrolyte layer, the second electrode layer containing another active material, wherein no collector layer that is in contact with the second electrode layer is provided in a direction in which the solid electrolyte layer, the first electrode layer, and the second electrode layer are stacked, and the second electrode layer includes board-shaped carbon.

Abstract: An all solid battery includes an oxide-based solid electrolyte layer, a positive electrode layer that is provided on a first main face of the oxide-based solid electrolyte layer and includes a positive electrode active material, and a negative electrode layer that is provided on a second main face of the oxide-based solid electrolyte layer and includes a negative electrode active material. At least one of the positive electrode active material of the positive electrode layer and the negative electrode active material of the negative electrode layer includes a first electrode active material and a second electrode active material of which average operation potentials (vs Li/Li+) are different from each other.

Abstract: An all solid battery includes: a solid electrolyte layer including a glass component, a main component of the solid electrolyte layer being phosphoric acid salt-based solid electrolyte; and electrode layers that are provided on both main faces of the solid electrolyte layer, wherein the electrode layers include a carbon material having an average particle diameter of 40 nm or more and 120 nm or less, wherein a DBP oil absorption of the carbon material is 200 mL/100 g or less.

Abstract: An all solid battery includes: a solid electrolyte layer; a positive electrode layer provided on a first face of the solid electrolyte layer, a part of the positive electrode layer extending to a first edge portion of the solid electrolyte layer; a first margin layer that is provided on an area of the solid electrolyte layer where the positive electrode is not provided; a negative electrolyte layer provided on a second face of the solid electrolyte layer, a part of the negative electrolyte layer extending to a second edge portion of the solid electrolyte layer; a second margin layer that is provided on an area of the second face of the solid electrolyte layer where the negative electrolyte layer is not provided; wherein a main component of the first margin layer and the second margin layer is solid electrolyte of which ionic conductivity is lower than that of the solid electrolyte layer.