摘要:
A blue light-emitting phosphor having an elemental formula of Sr3-xMgSi2O8:Eux (wherein x represents a value in the range of 0.008 to 0.110), a merwinite crystal structure and a crystal lattice strain of 0.080% or less as determined from an X-ray diffraction pattern at diffraction angle 2θ of 20-130° by the Le Bail method, wherein the X-ray diffraction pattern is determined using a CuKα ray having an incident angle of θ, is used advantageously as a blue light-emitting material for a light-emitting device which comprises a semiconductor light-emitting element capable of emitting a light having a wavelength of 350-430 nm upon application of an electrical current, such as a white light-emitting LED lamp, and a blue light-emitting material capable of emitting a blue light upon excitation with a light emitted by the semiconductor light-emitting element.
摘要:
A silicate phosphor having a coating layer comprising a fluorine-containing compound on its surface which is obtained by a method of heating a mixture of 100 weight parts of a silicate phosphor and 0.5-15 weight parts of ammonium fluoride at a temperature in the range of 200 to 600° C. exhibits high light emission intensity and high moisture resistance.
摘要:
The negative active material for a non-aqueous rechargeable battery includes a main component of lithium vanadium oxide, and at least one selected from the group consisting of Li3VO4, vanadium carbide, and mixtures thereof. The Li3VO4 is included in an amount of 0.5 to 3.0 wt % based on the total weight of the negative active material, and the vanadium carbide is included in amount of 0.5 wt % or less based on the total weight of the negative active material. The negative active material can improve discharge capacity of the non-aqueous rechargeable battery.
摘要翻译:用于非水可再充电电池的负极活性材料包括锂钒氧化物的主要成分,以及选自Li 3 VO 4,碳化钒及其混合物中的至少一种。 Li 3 VO 4的含量相对于负极活性物质的总重量为0.5〜3.0重量%,以负极活性物质的总重计为0.5重量%以下。 负极活性物质可以提高非水可再充电电池的放电容量。
摘要:
A positive electrode for an alkaline storage battery is disclosed, comprising a conductive base material and an active material layer attached to the base material, the active material layer comprising an active material and a binder, the binder comprising an elastic copolymer comprising one or more tetrafluoroethylene units and one or more propylene units.
摘要:
The present invention relates to a negative active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery including the same. The negative active material for a lithium secondary battery includes a compound and a carbon composite represented by the following Chemical Formula 1. LiaVbMcO2+d [Chemical Formula 1] In the above Chemical Formula 1, a, b, c, and d represent a composition ratio, 0.1≦a≦2.5, 0.5≦b≦1.5, 0≦c≦0.5, 0≦d≦0.5, and M is Mg, Si, Sc, Cu, Zu, Nb, Y, or a combination thereof.
摘要:
In order to provide a positive electrode active material capable of producing an alkaline storage battery having a high discharge voltage and an excellent discharge characteristic and also provide a positive electrode and alkaline storage battery containing thereof, a positive electrode active material for an alkaline storage battery comprising a nickel hydroxide powder is used, in which the nickel hydroxide is a solid solution containing magnesium, the magnesium content in the nickel hydroxide is 2 to 7 mol % of all metallic elements contained in the nickel hydroxide, the tap density of the nickel hydroxide is 1.9 g/cm3 or more, the half-width of a peak attributed to (101) face near 2&thgr;=37 to 40° in a powder X-ray diffraction pattern of the nickel hydroxide by CuK&agr; radiation is 0.7 to 1.2° and the sulfate ion content in the nickel hydroxide is 0.5 wt % or less.
摘要翻译:为了提供能够制造具有高放电电压和优异的放电特性的碱性蓄电池的正极活性物质,并且还提供含有它的正极和碱性蓄电池,用于碱性蓄电池的正极活性物质包括 使用氢氧化镍粉末,其中氢氧化镍为含镁的固溶体,氢氧化镍中的镁含量为氢氧化镍中所含金属元素的2〜7摩尔%,氢氧化镍的振实密度为 1.9Kg / cm 3以上,通过CuKalpha辐射,在氢氧化镍的粉末X射线衍射图中,归属于(101)的(101)的峰的半值宽度接近2θ= 37〜40°为0.7〜1.2° 氢氧化镍中的硫酸根离子含量为0.5重量%以下。
摘要:
Disclosed is an alkaline storage battery which exhibit exceptional charge/discharge and cycle life characteristics by improved current collection and active material retention of the electrode substrate. The electrode comprises a substrate composed of a conductive core material and fibrous nickel members unitary sintered on both surfaces of the conductive core material, and a layer of an active material filled into the substrate. The fibrous nickel members of the substrate are bent or curved at least at their tip ends inside the active material layer to retain the active material.
摘要:
A silicate phosphor having a coating layer comprising a fluorine-containing compound on its surface which is obtained by a method of heating a mixture of 100 weight parts of a silicate phosphor and 0.5-15 weight parts of ammonium fluoride at a temperature in the range of 200 to 600° C. exhibits high light emission intensity and high moisture resistance.