Magnesium-lithium double-salt battery one-dimensional Ni3Sn2/CNF positive electrode material and one-step synthesis method thereof

• Main Authors: YANG YANLING, ZHAO DUODE, SHU QIANG, LI DANTING, YE XIAOHUI, WANG CHENLU, CAO QIANHONG, ZHANG LI, SUO GUOQUAN, HOU XIAOJIANG
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2023
• Subjects: APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS; BASIC ELECTRIC ELEMENTS; BRAIDING; CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS; COTTON-WOOL; ELECTRICITY; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; KNITTING; LACE-MAKING; LAUNDERING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; NANOTECHNOLOGY; NATURAL OR ARTIFICIAL THREADS OR FIBRES; NON-WOVEN FABRICS; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; SPINNING; TEXTILES; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; TRIMMINGS; WADDING

The invention discloses a one-dimensional Ni3Sn2/CNF positive electrode material of a magnesium-lithium double-salt battery and a one-step synthesis method of the one-dimensional Ni3Sn2/CNF positive electrode material. SnCl2. 2H2O and Ni (NO3) 2.6 H2O are dissolved in N-N dimethylformamide (DMF), and stirring is performed to obtain a solution A; dissolving polyvinylpyrrolidone (PVP) in the solution A, and stirring to obtain a solution B; a No. 22 plain-end needle is connected to an injector to serve as a spinning nozzle, the solution B is sprayed, high-voltage electrostatic spinning is carried out, and an electrospun film is obtained; and carrying out pre-oxidation treatment on the collected electrospun membrane in air in a tubular furnace, and naturally cooling the electrospun membrane to room temperature to obtain a one-dimensional Ni3Sn2/CNF positive electrode material sample. By constructing the one-dimensional nano structure, the problem of volume expansion caused by intercalation and deintercalation of