摘要:
A active material for a battery according to one embodiment contains a composite oxide represented by a following general: the general formula Li x (Nb 1-y Ta y ) 2+0.5z Ti 1-z M 0.5z O 7 (0 ‰¤ x ‰¤ 5, 0 ‰¤ y ‰¤ 1, and 0
摘要:
The present invention involves pigments derived from compounds with the LiSb0 3 -type or LiNb0 3 -type structures. These compounds possess the following formulations M 1 M 5 Z 3 , M 1 M 2 M 4 M 5 Z 6 , M 1 M 3 2 M 1 M 2 M 3 M 6 Z 6 , M 1 2 M 4 M 6 Z 6 , M 1 M 5 M 6 Z 6 , or a combination thereof. The cation M 1 represents an element with a valence of +1 or a mixture thereof, the cation M 2 represents an element with a valence of +2 or a mixture thereof, the cation M 3 represents an element with a valence of +3 or a mixture thereof, the cation M 4 represents an element with a valence of +4 or a mixture thereof, the cation M 5 represents an element with a valence of +5 or a mixture thereof, and the cation M 6 represents an element with a valence of +6 or a mixture thereof. The cation M is selected from H, Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Ru, Co, Ni, Cu, Ag, Zn, B, Al, Ga, In, Si, Ge, Sn, P, Sb, or Te. The anion Z is selected from N, O, S, Se, CI, F, hydroxide ion or a mixture thereof. Along with the elements mentioned above vacancies may also reside on the M or Z sites of the above formulations such that the structural type is retained. The above formula may also include M dopant additions below 20 atomic %, where the dopant is selected from H, Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Ru, Co, Ni, Cu, Ag, Zn, B, Al, Ga, In, Si, Ge, Sn, P, Sb, Bi, Te, or mixtures thereof.
摘要:
The invention provides a process for exfoliating a 3-dimenisonal layered material to produce a 2-dimensional material, said process comprising the steps of mixing the layered material in a water-surfactant solution to provide a mixture wherein the material and atomic structural properties of the layered material in the mixture are not altered; applying energy, for example ultrasound, to said mixture; and applying a force, for example centrifugal force, to said mixture. The invention provides a fast, simple and high yielding process for separating 3-dimensional layered materials into individual 2-dimensional layers or flakes, which do not re-aggregate, without utilising hazardous solvents.
摘要:
A piezoelectric solid solution composition containing, as a main component, a composition represented by the following general formula: €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ{M x (Na y Li z K 1-y-z ) 1-x } 1-m {(Ti 1-u-v Zr u Hf v ) x (Nb 1-w Ta w ) 1-x }O 3 is disclosed. In the formula, M represents a combination of at least one member selected from the group consisting of (Bi 0.5 K 0.5 ), (Bi 0.5 Na 0.5 ) and (Bi 0.5 Li 0.5 ) and at least one member selected from the group consisting of Ba, Sr, Ca and Mg; and in the formula, x, y, z, u, v, w and m are in the following ranges: 0.06
摘要:
There are disclosed a piezoelectric/electrostrictive body which does not require any long-time treatment such as an aging treatment but in which a strain ratio has increased, and a piezoelectric/electrostrictive element. The piezoelectric/electrostrictive body is represented by a composition formula ABO 3 (A includes one or more elements selected from the group consisting of at least Li, Na and K, and B includes one or more elements selected from the group consisting of at least Nb, Ta, Sb and Mn), and the piezoelectric/electrostrictive body is formed so that a main phase is a tetragonal system, and the orientation degree of a (001) face after a polarization treatment is smaller than that of a (100) face, in a plane vertical to the applying direction of an electric field applied so as to perform the polarization treatment. Moreover, in the piezoelectric/electrostrictive body of the present invention, a ratio between a diffraction peak intensity I 001 of the (001) face and a diffraction peak intensity I 100 of the (100) face is I 001 /I 100 ≤ 1, in an X-ray diffraction pattern in the plane vertical to the applying direction of the electric field after the polarization treatment.
摘要:
The present invention provides a ceramic material capable of demonstrating compactness and Li ion conductivity to an extent that enables the use of the ceramic material as a solid-state electrolyte material for a lithium secondary battery, or the like. A ceramic material containing Li, La, Zr, Nb and/or Ta, as well as O and having a garnet-type or garnet-like crystal structure is used.
摘要:
The present invention provides a ceramic material allowing a pellet having higher density and satisfactory Li ion conduction to be obtained. The ceramic material contains Li, La, Zr, Al and O and has a garnet-type or garnet-like crystal structure, the ratio of the number of moles of Li with respect to La being 2.0 or greater to 2.5 or lower.