4 results about "High phosphate" patented technology

The application specifically discloses a phosphate-based positive electrode material and a preparation method and application thereof. The phosphate-based positive electrode material comprises base particles and a carbon coating layer coated on the surface of the base particles; the chemical formula of the base particles is Li x M y PO4, 0.96≤x≤1.08, 0.96≤y≤1, M comprises at least one of Fe and Mn; wherein, the M site is doped with a first metal element, the first metal element comprises at least one of Ti, V, Cr, Co, Ni, Nb, Mo and W; and / or, the Li site is doped with a second metal element, the second metal element comprises at least one of Mg and Zr; the carbon coating layer comprises a carbon material, and the degree of disorder I D / I G of the carbon material is ≤1.2. The application has the advantages of improving the electrochemical performance of the phosphate-based positive electrode material and reducing the ion elution rate thereof.

The application relates to the technical field of lithium ion batteries, in particular to a phosphate-based positive electrode material, a preparation method thereof and a lithium ion battery. The preparation method comprises the following steps: dispersing a primary semi-product of the phosphate-based positive electrode material in a solvent, adding an etching agent to etch the particle surface of the primary semi-product to obtain a secondary semi-product; the crystallinity of the particle surface of the primary semi-product is lower than the crystallinity of the particle interior; mixing the secondary semi-product and additional raw materials of the phosphate-based positive electrode material, and then performing secondary sintering to obtain a finished product of the phosphate-based positive electrode material; the raw materials comprise an organic iron source; the amount of the etching agent is 1.2 wt% to 8 wt% of the primary semi-product. The phosphate-based positive electrode material prepared by the preparation method significantly improves the mass transfer problem of the lithium interface, improves the electronic conductivity, and effectively improves the cycle stability of the phosphate-based positive electrode material.

This invention belongs to the field of crankshaft technology, and specifically relates to a crankshaft, its manufacturing method, and its applications. The crankshaft of this invention includes a crankshaft body and a composite layer disposed on the surface of the crankshaft body; the composite layer includes a nitrided layer, a phosphate layer, and a lubricating layer arranged sequentially from the inside out. The nitrided layer improves the fatigue strength and wear resistance of the crankshaft. The phosphate layer formed on the nitrided layer serves as a base layer, providing a good adhesion foundation for the lubricating layer and improving the bonding between the phosphate layer and the lubricating layer, i.e., improving the bonding between the lubricating layer and the crankshaft body, allowing the lubricating layer to better perform its function of reducing friction and wear. When the crankshaft-bearing friction pair enters the boundary lubrication state, the lubricating layer is consumed first, forming a solid lubrication transfer film on the bearing surface. This avoids direct contact between the crankshaft's nitrided layer and the bearing, while also achieving a friction-reducing and lubricating effect, thus improving the wear of the crankshaft-bearing friction pair.

Aspects of the present disclosure relate to methods of cultivating genetically altered plants with increased activity of one or more of a NODULATION SIGNALING PATHWAY 1 (NSP1) protein or a NODULATION SIGNALING PATHWAY 2 (NSP2) protein that have increased mycorrhization and / or promoted symbiotic responses under high phosphate and / or high nitrate conditions. Further aspects of the present disclosure relate to methods of cultivating genetically altered plants with increased activity of a C-TERMINALLY ENCODED PEPTIDE (CEP peptide) that have increased mycorrhization and / or promoted symbiotic responses under high phosphate and / or high nitrate conditions. In addition, aspects of the present disclosure relate to methods of cultivating these plants that include exogenous application of strigolactones, karrikins, and / or CEP peptides to increase mycorrhization and / or promote symbiotic responses under specific nutrient conditions.