Abstract:
The present invention relates to a negative active material for a rechargeable lithium battery, which includes a silicon-based composite having a silicon oxide of the form SiOx where x≦1.5 and at least one element selected from the group consisting of B, P, Li, Ge, Al, and V, and a carbonaceous material. The negative active material of the present invention can improve the cycle-life and high-rate charge/discharge characteristics of a rechargeable lithium battery.
Abstract:
This invention relates to production of micronized calcined tincal having a high content as a result of a succession of procedures consisting of: hardening of earth minerals due to lose of water during subjecting coarse tincal ore (Na2B4O7-10H2O) to heat treatment in rotary furnace with flights; forming of swollen soft, expanded structure of tincal ore caused by calcination and consequently being calcined followed by purification from impurities in a high rate in a way subjecting calcined tincal to pneumatic separation procedure by means of hot air used for calcination process after autogenic grinding effect of dried and hardened clays on swollen ore and obtaining micronized calcined tincal with high efficiency. The invention also relates to the production of compacted calcined tincal product with increased density in the second step as result of compacting micronized calcined tincal with low density under pressure.
Abstract:
A material comprising a plurality of nanoparticles. Each of the plurality of nanoparticles includes at least one of a metal phosphate, a metal silicate, a metal oxide, a metal borate, a metal aluminate, and combinations thereof. The plurality of nanoparticles is substantially monodisperse. Also disclosed is a method of making a plurality of substantially monodisperse nanoparticles. The method includes providing a slurry of at least one metal precursor, maintaining the pH of the slurry at a predetermined value, mechanically milling the slurry, drying the slurry to form a powder; and calcining the powder at a predetermined temperature to form the plurality of nanoparticles.
Abstract:
This invention describes methods for the preparation of aqueous solutions of ammonium pentaborate by reacting alkaline earth tetraborates in water with selected mineral acids followed by the addition of ammonia or ammonium hydroxide. These methods dramatically reduces the amount of residual ammonia as compared to earlier teachings that depended on the use of the di-ammonium salts of mineral acids. The resultant solutions contain by design little or no residual ammonia making the compositions compatible with binding resins used in the manufacture of wood composites. The so prepared solutions can be used to treat wood and wood products, as well as wood particles, chips or strands and wood laminates imparting the properties of fire retardancy and resistance to attack by wood eating and or destroying insects.
Abstract:
An electroactive material and a method of manufacturing the same is provided, in which the primary component of the electroactive material is a metal boron oxide complex, and the electroactive material exhibits excellent charge/discharge characteristics. The electroactive material of the present invention is primarily composed of an amorphous metal complex represented by the general formula M2-2xB2xO3. M is one or two or more metal elements selected from the transition metal elements, e.g., Fe or V. In addition, x is 0
Abstract translation:提供电活性材料及其制造方法,其中电活性材料的主要组分是金属氧化硼复合物,并且电活性材料表现出优异的充电/放电特性。 本发明的电活性材料主要由通式为M 2〜2×2×O 3 N 3表示的非晶态金属络合物构成。 M是选自过渡金属元素例如Fe或V中的一种或两种以上的金属元素。另外,x是0
Abstract:
A rare earth borate in the form of substantially spherical, uniform diameter particles having an average particle diameter of 0.5-2 &mgr;m is prepared by mixing substantially spherical rare earth oxide co-precipitates having an average particle diameter of 0.5-2 &mgr;m with boric acid or boron oxide, and heating the mixture at 600-1100° C. for reaction. It is a useful raw material for phosphor manufacture.
Abstract:
The present invention relates to methods for producing suspensions and/or granular products of polyborates. Methods for making suspensions of both insoluble and soluble polyborates are also disclose. Additionally, uses for such polyborate suspensions and/or granular products are also disclosed.
Abstract:
A rare earth borate in the form of substantially spherical, uniform diameter particles having an average particle diameter of 0.5-2 nullm is prepared by mixing substantially spherical rare earth oxide co-precipitates having an average particle diameter of 0.5-2 nullm with boric acid or boron oxide, and heating the mixture at 600-1100null C. for reaction. It is a useful raw material for phosphor manufacture.
Abstract:
A composition comprises a hydrogenation catalyst supported on an inorganic support which comprises aluminum, zirconium, and a borate. A process for producing the composition comprises the steps of (1) contacting an aluminum salt, a zirconium salt, and an acidic boron compound under a condition sufficient to effect the production of a solid material comprising aluminum, zirconium, and borate; and (2) combining a hydrogenation catalyst with the inorganic support. Also disclosed is a process for reducing aromatic compounds content in a hydrocarbon-containing fluid which comprises contacting a hydrocarbon-containing fluid, in the presence of a catalyst composition, with hydrogen wherein said catalyst composition comprises a hydrogenation catalyst and an inorganic support wherein said support comprises aluminum, zirconium and a borate.
Abstract:
Nonlinear optical materials, methods of crystal growth, and devices employing such materials satisfy the general formula (&Sgr;i=1-3M&agr;i1)(&Sgr;j=1-3M&bgr;j2)(&Sgr;k=1-6M&ggr;k3)B14O25 Formula 1 wherein M1, M2, and M3 are mono-, di, or tri-valent metal ions respectively; wherein (&Sgr;i=1-3&agr;i)=X and ranges from 0 to 2, (&Sgr;j=1-3&bgr;j)=Y and ranges from 0 to 4, and (&Sgr;k=1-6&ggr;k)=Z and ranges from 0 to 2, and wherein X+Y+Z=4.0. Other nonlinear optical compounds according to this invention also generally satisfy Formula 2 through 7 below: (&Sgr;j=1-3M&bgr;j2)B14O25, where (&Sgr;j=1-3&bgr;j)=4 Formula 2 M42B14O25 Formula 3 (&Sgr;i=1-3M&agr;i1)(&Sgr;k=1-6M&ggr;k3)B14O25 Formula 4 where (&Sgr;i=1-3&agr;i)=2, and (&Sgr;k=1-6&ggr;k)=2. M21M23B14O25 Formula 5 (&Sgr;i=1-3M&agr;i1)(&Sgr;j=1-3M&bgr;j2)(&Sgr;k=1-6M&ggr;k3)B14O25 Formula 6 where (&Sgr;i=1-3&agr;i)=1, (&Sgr;j=1-3&bgr;j)=2, and (&Sgr;k=1-6&ggr;k)=1. and M1M22M3B14O25 Formula 7.