The present invention relates to a positive electrode active material for a secondary battery, which includes a core including a lithium composite metal oxide, and a surface treatment layer which is disposed on the core and includes an amorphous oxide containing a lithium (Li) oxide, a boron (B) oxide, and an aluminum (Al) oxide, wherein an amount of a lithium by-product present on a surface of the positive electrode active material is less than 0.55 wt % based on a total weight of the positive electrode active material, and a method of preparing the same.

Disclosed are a cathode active material for a lithium secondary battery including a core containing lithium composite metal oxide, and a coating layer disposed on the core, containing a mixture of lithium oxide, tungsten oxide, boron oxide and phosphorus oxide, and having an amorphous phase, and a lithium secondary battery including the same.

A suspension of a boron containing compound in the form of crystals, powder or granulate in a solvent which contain a carbomer as dispersant. This suspension is very stable, even at high concentrations, and exhibits favourable non-Newtonian viscosity behavior, which makes it suitable in a number of applications, such as for the control of fission reactions with the generation of electric power from nuclear energy.

Novel methods for processing fumed metallic oxides into globular metallic oxide agglomerates are provided. The methodology may allow for fumed metallic oxide particles, such as fumed silica and fumed alumina particles, to be processed into a globular morphology to improve handling while retaining a desirable surface area. The processes may include providing fumed metallic oxide particles, combining the particles with a liquid carrier to form a suspension, atomizing the solution of suspended particles, and subjecting the atomized droplets to a temperature range sufficient to remove the liquid carrier from the droplets, to produce metallic oxide-containing agglomerations.

The object of the present invention is to provide an excellent method for storing and transporting hydrogen.

The object can be solved by a structure comprising boron, hydrogen, and oxygen, that has BHB bonds, BH bonds, and BOH bonds, and in the measurement of FT-IR spectra, the following formulas are satisfied: (1) 0.80?a/c?0.96, and (2) 0.95?b/c?1.12, wherein when the baseline is defined as 100%, a is the transmittance at 1400 cm.sup.?1 in the FT-IR spectrum, b is the transmittance at 2500 cm.sup.?1 in the FT-IR spectrum, and c is the transmittance at 3200 cm.sup.?1 in the FT-IR spectrum.

The object of the present invention is to provide an excellent method for storing and transporting hydrogen.

The object can be solved by a structure comprising boron, hydrogen, and oxygen, that has BHB bonds, BH bonds, and BOH bonds, and in the measurement of FT-IR spectra, the following formulas are satisfied: (1) 0.80?a/c?0.96, and (2) 0.95?b/c?1.12, wherein when the baseline is defined as 100%, a is the transmittance at 1400 cm.sup.?1 in the FT-IR spectrum, b is the transmittance at 2500 cm.sup.?1 in the FT-IR spectrum, and c is the transmittance at 3200 cm.sup.?1 in the FT-IR spectrum.

To provide an electrolyte for a storage device capable of lowering the electric resistance and maintaining a high capacity even after charging and discharging are repeatedly carried out, and a storage device. An electrolyte for a storage device, which comprises a lithium-containing complex compound represented by the following formula (1), (2), (3), (4) or (5):
(Li).sub.m(A).sub.n(UF.sub.x).sub.y(1)
(Li).sub.m(Si).sub.n(O).sub.q(UF.sub.x).sub.y(2)
wherein A is O, S, P or N; U is a boron atom or a phosphorus atom; m and n are each independently from 1 to 6; q is from 1 to 12; x is 3 or 5; and y is from 1 to 6;
(Li).sub.m(O).sub.n(B).sub.p(OWF.sub.q).sub.x(3)
wherein W is a boron atom or a phosphorus atom; m, p and x are each independently from 1 to 15; n is from 0 to 15; and q is 3 or 5;
(Li).sub.m(B).sub.p(O)n(OR).sub.y(OWF.sub.q).sub.x(4)
wherein W is a boron atom or a phosphorus atom; n is from 0 to 15; p, m, x and y are each independently from 1 to 12; q is 3 or 5; and R is hydrogen, an alkyl group, an alkenyl group, an aryl group, a carbonyl group, a sulfonyl group or a silyl group, and such a group may have a fluorine atom, an oxygen atom or other substituent;
(Li).sub.m(O).sub.n(B).sub.p(OOC-(A).sub.z-COO).sub.y(OWF.sub.q).sub.x(5)
wherein W is a boron atom or a phosphorus atom, A is a C.sub.1-6 allylene group, alkenylene group or alkynylene group, a phenylene group, or an alkylene group having an oxygen atom or a sulfur atom in its main chain; m, p, x and y are each independently from 1 to 20; n is from 0 to 15; z is 0 or 1; and q is 3 or 5.

Provided are a negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including same, the negative electrode for a rechargeable lithium battery including a negative electrode active material layer which comprises a boron compound and negative electrode active material.

The present invention is directed to a process for the synthesis of alkali metal tetrahydroborates-.sup.10B and amine borane-.sup.10B precursors, such as sodium tetrahydroborate-.sup.10B and triethylamine borane-.sup.10B.

Disclosed are an additive raw material composition and an additive for superhard material product, a method for preparing the additive, a composite binding agent, a superhard material product, a self-sharpening diamond grinding wheel and a method for manufacturing the same. The raw material composition consisting of components in following mass percentage: Bi2O3 25%40%, B2O3 25%40%, ZnO 5%25%, SiO2 2%10%, Al2O3 2%10%, Na2CO3 1%5%, Li2CO3 1%5%, MgCO3 0%5%, and CaF2 1%5%. The composite binding agent is prepared from the additive and a metal composite binding agent. The self-sharpening diamond grinding wheel prepared from the composite binding agent has high self-sharpness, high strength, and fine texture, is uniformly consumed during the grinding process, does not need to be trimmed during the process of being used, and maintains good grinding force all the time, fundamentally solving the problems of long trimming time and high trimming cost of the diamond grinding wheel.