4 results about "Glucic acid" patented technology

The application belongs to the technical field of sodium ion battery negative electrode materials, and discloses a corn powder / glucose acid cross-linking derived hard carbon negative electrode material and a preparation method and application thereof; the preparation method is as follows: corn powder and glucose acid are stirred at a ratio of 10:7-20, the modified corn powder after drying is prepared for carbonization at a low temperature of 500-700 DEG C in an inert gas for 1-3 hours, and then high-temperature carbonization is carried out at 1100-1600 DEG C for 1-3 hours to prepare hard carbon. The preparation method of the green and environment-friendly, low-cost and high-cycle-stability sodium ion battery biomass hard carbon negative electrode material has the characteristics of mass production, controllable hard carbon surface morphology and excellent electrochemical performance.

The application discloses a method for preparing a high-nickel positive electrode material with a double-layer coated nanolayer, which comprises the following steps: first, preparing a high-nickel positive electrode material; then, coating lithium iron phosphate on the high-nickel positive electrode material; bridging glucose acid based on the coating layer of lithium iron phosphate; and then, coating lithium manganate; and finally, combining the lithium iron phosphate layer and the lithium manganate layer through the glucose acid. The method improves the binding force of the double-layer coating, improves the structural stability of the high-nickel positive electrode material, avoids peeling of the coating layer, and improves the charge-discharge cycle performance.

The application provides a two-dosage-form copper etching liquid and a preparation method thereof, and belongs to the technical field of copper etching liquids, and comprises the following steps: mixing deionized water, ethylene glycol monobutyl ether and a hydrogen peroxide aqueous solution to obtain an A agent; mixing and reacting deionized water, a glucose acid aqueous solution, aminotri (methylenephosphonic acid), lactic acid, triisopropanolamine, gamma-glycidyl ether oxypropyl trimethoxysilane and aluminum lactate to obtain an aluminum-containing hybrid precursor; adding a first phosphoric acid aqueous solution, methanesulfonic acid and lactic acid into the aluminum-containing hybrid precursor, and then adding triisopropanolamine, a second phosphoric acid aqueous solution, 5-amino tetrazole and deionized water, and performing aging and filtration to obtain a B agent; and mixing the A agent, the B agent and deionized water to obtain the two-dosage-form copper etching liquid. The application can improve the storage stability, etching uniformity and copper surface flatness of the etching liquid.