332results about How to "Reduce spawn rate" patented technology

The invention provides a positive electrode material and a lithium ion secondary battery. The positive electrode material includes lithium cobaltate LiCoO2 (LCO) and lithium iron manganese phosphate LiFexMn1-xPO4 (LFMP), wherein 0<x<=0.4; the mass ratio of lithium iron manganese phosphate LiFexMn1-xPO4 to lithium cobaltate LiCoO2 is m, and 0<m<=0.45; lithium iron manganese phosphate LiFexMn1-xPO4 is polycrystalline particles having an olivine structure; lithium cobaltate LiCoO2 is polycrystalline particles having a layered structure; the average particle size D50 of the polycrystalline particles of lithium iron manganese phosphate LiFexMn1-xPO4 is less than the average particle size D50 of the polycrystalline particles of lithium cobaltate LiCoO2, and the polycrystalline particles of lithium iron manganese phosphate LiFexMn1-xPO4 are filled between the polycrystalline particles of lithium cobaltate LiCoO2. The lithium ion secondary battery includes the positive electrode material. The lithium ion secondary battery has high voltage platform and high energy density, and besides, has good multiplying power performance, cycle performance and safety performance.

The invention relates to an austenitic stainless steel with excellent polishing performance and a manufacturing method thereof. The austenitic stainless steel comprises the following components by weight: 0.03-0.1% of C, 0.3-1.0% of Si, 0.8-2% of Mn, 0-0.045% of P, 0.003-0.008% of S, 16-20% of Cr, 7-12% of Ni, 0.4-2.0% of Cu, 0-0.08% of N, and the balance Fe and unavoidable impurities. According to the invention, by controlling a proper amount of S and adding a small amount of Cu, the plasticity and cutting performance of the matrix are improved, thus being in favor of improving the polishing performance; the intake of Al in raw materials is controlled, and an Al-free deoxidant is employed, thus effectively reducing the generation probability of hard type inclusions; in addition, by controlling a suitable basicity in the smelting process, inevitable hard type inclusions are modified into plastic inclusions, and then through settling, Ar gas stirring and other measures, large inclusions can be removed, thereby effectively purifying the molten steel and improving the inner quality of steel; and non-dephosphorization rolling, a corrosive groove free pickling surface and an appropriate flattening process effectively enhance the final surface quality.

The invention relates to a preparation method of a decellularized anti-calcification heart patch. The method mainly comprises the steps that raw material pericardial tissue is degreased through an organic reagent and processed by a mixed solution of a high salt, a surface active agent and alkali, and finally sterilization treatment is performed to obtain the decellularized anti-calcification heart patch. According to the obtained heart patch, due to the special decellularized anti-calcification technology, the collagenous fiber three-dimensional pore structure of the raw materials is reserved, meanwhile, cells contained in the materials are effectively removed, and the immunogenicity is lowered; the materials can guide cells to grow in the materials, scar tissue generation is reduced, and the good anti-calcification ability is achieved; the excellent mechanical property is achieved, arterio-venous pressure difference between heart chambers can be resisted, and the repair effect is ensured. The preparation method is applicable to atrial septal defects, ventricular septal defects, aortic stenosis and the like caused by the congenital heart disease.