Abstract:
A solid electrolyte is composed primarily of a component expressed by a composition formula of Lia+dMbXcAeOf by using values a to f that are greater than 0, where M is an element serving as a trivalent cation, X is a halogen element, and A is a sulfur element or a phosphorus element, wherein 0.8c≤(a+3b)≤1.2c and 1.6f≤(d+n×e)≤2.4f are satisfied, where when A is a sulfur element, n is 4 or 6, and when A is a phosphorus element, n is 5.
Abstract:
A lithium ion conductive material has a composition formula of Lia(OH)bFcBr, where 1.8≤a≤2.3, b=a−c−1, 0.01≤c≤0.11, and includes an antiperovskite-type crystal phase. Preferably, the lithium ion conductive material further includes a layered antiperovskite-type crystal phase. More preferably, 0≤B/(A+B)≤0.2 is satisfied, where A is the peak intensity in the vicinity of 2θ=31.2° in the X-ray diffractometry using Cu-Kα ray and B is the peak intensity in the vicinity of 2θ=30.2°.
Abstract:
Provided is a solid electrolyte which contains a composition expressed by 3LiOH.Li2SO4. The solid electrolyte has a lithium ion conductivity of 0.1x10−6 S/cm or more at 25° C. and an activation energy of 0.6 eV or more.
Abstract:
There is provided an all-solid-state lithium battery including: a positive-electrode plate composed of a lithium complex oxide sintered body having a layered rock-salt structure; a solid electrolyte layer composed of a lithium-ion-conductive antiperovskite material; a negative-electrode plate containing Ti and permitting intercalation and deintercalation of lithium ions at 0.4 (vs. Li/Li+) V or more; a positive-electrode current collecting layer provided on a face, remote from the solid electrolyte layer, of the positive-electrode plate; a negative-electrode current collecting layer provided on a face, remote from the solid electrolyte layer, of the negative-electrode plate; a positive-electrode covering metal membrane provided at an interface between the positive-electrode plate and the solid electrolyte layer; and a negative-electrode covering metal membrane provided at an interface between the negative-electrode plate and the solid electrolyte layer.
Abstract:
Provided is an all-solid lithium battery including: a low-angle oriented positive electrode plate that is a lithium complex oxide sintered plate having a porosity of 10 to 50%; a negative electrode plate containing Ti and capable of intercalating and deintercalating lithium ions at 0.4 V or higher (vs. Li/Li+); and a solid electrolyte having a melting point lower than the melting point or pyrolytic temperature of the oriented positive electrode plate or the negative electrode plate, wherein at least 30% of pores in the oriented positive electrode plate is filled with the solid electrolyte in an observation of a cross-section perpendicular to a main face of the oriented positive electrode plate.
Abstract:
The present invention provides a ceramic material comprising magnesium, gallium, lithium, and oxygen as main components, wherein a crystal phase of a solid solution attained by dissolving gallium oxide and lithium oxide in magnesium oxide is a main phase. An XRD peak of a (200) plane of the solid solution with CuKα rays preferably appears at 2θ=42.91° or more which is larger than an angle at which a peak of a Cubic crystal of magnesium oxide appears, more preferably appears at 2θ=42.91° to 43.28°, and further preferably appears at 2θ=42.91° to 43.02°. In the ceramic material, a molar ratio Li/Ga of Li to Ga is preferably 0.80 or more and 1.20 or less.
Abstract:
A first bonding material composition according to the present invention is a bonding material composition used when aluminum nitride sintered bodies containing a rare-earth metal oxide are bonded to each other, in which the bonding immaterial composition contains, in addition, to an O element-containing aluminum nitride raw material, (a) as a fluorine compound, at least one of a fluorine compound of an alkaline-earth metal and a fluorine compound of a rare-earth metal, or (b) as a fluorine compound, at least one of a fluorine compound of an alkaline-earth metal and a fluorine compound of a rare-earth metal, and a rare-earth metal oxide.
Abstract:
Electrostatic chucks (1A to 1F) are provided with: susceptors (11A to 11F) having an attracting surface (11a) that attracts and holds semiconductors; and electrostatic chuck electrodes (4) that are embedded in the susceptors. The susceptors are provided with plate-shape bodies (3) and surface corrosion-resistant layers (2) that face the attracting surface. The surface corrosion-resistant layer (2) is made from a ceramic material having magnesium, aluminum, oxygen and nitrogen as main components, the ceramic material having, as a main phase, an MgO—AlN solid solution crystal phase obtained by dissolving aluminum nitride in magnesium oxide.
Abstract:
There is provided a positive electrode active material containing a lithium composite oxide having a layered rock salt structure containing Li, Ni, Co and Mn, and further containing at least one additive selected from Li3BO3, Li3PO4 and Li2SO4.
Abstract:
A method of manufacturing a composite sintered body includes a step (Step S11) of molding mixed powder in which Al2O3, SiC, and MgO are mixed, into a green body having a predetermined shape and a step (Step S12) of generating a composite sintered body by sintering the green body. Then, in Step S11, the ratio of SiC to the mixed powder is not lower than 4.0 weight percentage and not higher than 13.0 weight percentage. Further, the purity of Al2O3 in Step S11 is not lower than 99.9%. It is thereby possible to suppress the abnormal grain growth of Al2O3 and suitably manufacture a composite sintered body having high relative dielectric constant and withstand voltage, and low tan δ.