摘要:
Methods for preparing iron source material and ferrous oxalate for lithium ferrous phosphate are disclosed. One method comprises bringing solution containing ferrite and soluble non-ferrous metal salts in contact with oxalate solution; wherein said method of contact is to allow a flow of the ferrite solution containing ferrite and soluble non-ferrous metal salts to come in contact with a flow of oxalate solution. Another method comprises brings a stream of ferrite solution in contact with a stream of oxalate solution, wherein the flow rates of the ferrite solution and oxalate solution give the resulting slurry a pH of 2-6. The ferrous oxalate particles produces by the methods of the present invention are regularly shaped and have small and evenly distributed diameters. Lithium ferrous phosphate made from iron source material and ferrous oxalate prepared using the methods of the present invention has small particle diameter, homogeneous particle size, good electrical conductivity, and superior electrochemical properties.
摘要:
A process for preparing lithium-nickel-manganese-cobalt composite oxide used as a positive electrode material for the lithium ion battery, comprising subjecting a mixture containing a lithium compound and nickel-manganese-cobalt hydroxide to a first-stage sintering and a second-stage sintering. The process includes adding a binder and/or binder solution after the first-stage sintering, and the mixture of the binder and/or binder solution and the product of first-stage sintering is sintered in the second-stage sintering. The tap density and volume specific capacity of the positive electrode material lithium-nickel-manganese-cobalt composite oxide prepared by the process, come up to 2.4 g/cm3 and 416.4 mAh/cm3, respectively. Besides, the positive electrode material lithium-nickel-manganese-cobalt composite oxide prepared by the process possesses the advantages of high specific capacity and good cycle stability.
摘要翻译:一种用作锂离子电池正极材料的锂镍锰钴复合氧化物的制备方法,包括将含有锂化合物和镍锰 - 氢氧化钴的混合物进行第一阶段烧结, 阶段烧结。 该方法包括在第一阶段烧结之后加入粘合剂和/或粘合剂溶液,并在第二阶段烧结中烧结粘合剂和/或粘合剂溶液与第一阶段烧结产物的混合物。 通过该方法制备的正极材料锂镍锰钴复合氧化物的振实密度和体积比容量分别达到2.4g / cm 3和416.4mAh / cm 3。 此外,通过该方法制备的正极材料锂镍锰钴复合氧化物具有高比容量和良好的循环稳定性的优点。
摘要:
A process for preparing lithium-nickel-manganese-cobalt composite oxide used as a positive electrode material for the lithium ion battery, comprising subjecting a mixture containing a lithium compound and nickel-manganese-cobalt hydroxide to a first-stage sintering and a second-stage sintering, wherein said process further comprises adding a binder and/or binder solution after the first-stage sintering, and the mixture of the binder and/or binder solution and the product of first-stage sintering is sintered in said second-stage sintering. The tap density and volume specific capacity of the positive electrode material lithium-nickel-manganese-cobalt composite oxide prepared by the present process, come up to 2.4 g/cm3 and 416.4 mAh/cm3, respectively. Besides, the positive electrode material lithium-nickel-manganese-cobalt composite oxide prepared by the present process possesses the advantages of high specific capacity and good cycle stability.
摘要翻译:一种用作锂离子电池正极材料的锂镍锰钴复合氧化物的制备方法,包括将含有锂化合物和镍锰 - 氢氧化钴的混合物进行第一阶段烧结, 其中所述方法还包括在第一阶段烧结之后添加粘合剂和/或粘合剂溶液,并且在所述第二阶段烧结中将粘合剂和/或粘合剂溶液与第一阶段烧结产物的混合物烧结 。 通过本方法制备的正极材料锂镍锰钴复合氧化物的振实密度和体积比容量分别达到2.4g / cm 3和416.4mAh / cm 3。 此外,通过本方法制备的正极材料锂镍锰钴复合氧化物具有高比容量和良好的循环稳定性的优点。
摘要:
The present invention discloses a method and a device for preparing a compound semiconductor film. The method comprises the steps of: providing a substrate above at least an evaporation source in a vacuum condition; heating a source material contained in the evaporation source so that the source material is vapor-deposited on the substrate; and taking out the substrate under protection of an inert gas. The substrate may be rotated around an axis of a plane where the evaporation source is positioned, and the substrate is tilted by a predetermined angle with respect to the plane. The compound semi-conductive film thus prepared has a uniform thickness with a larger area. The method provides a simplified process and enhanced efficiency.
摘要:
A method for preparing a cadmium sulfide film comprises: providing a slurry; coating a first substrate with the slurry; heating the first substrate to produce a vapor; and depositing the vapor on a second substrate to form a cadmium sulfide film. The slurry comprises a dispersant, cadmium particles and sulfur particles.
摘要:
The present invention discloses a method and a device for preparing a compound semiconductor film. The method comprises the steps of: providing a substrate above at least an evaporation source in a vacuum condition; heating a source material contained in the evaporation source so that the source material is vapor-deposited on the substrate; and taking out the substrate under protection of an inert gas. The substrate may be rotated around an axis of a plane where the evaporation source is positioned, and the substrate is tilted by a predetermined angle with respect to the plane. The compound semi-conductive film thus prepared has a uniform thickness with a larger area. The method provides a simplified process and enhanced efficiency.