Lead-based layered oxide material for sodium-ion battery as well as preparation method and application of lead-based layered oxide material

• Main Authors: HU BEN, REN NING, SHE YIHONG, CHEN CHEN, WU NIU, SHAO YUAN
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention relates to the technical field of sodium ion batteries, and discloses a lead-based layered oxide material for a sodium ion battery as well as a preparation method and application of the lead-based layered oxide material, and the chemical general formula of the lead-based layered oxide material is NaaT1-b-c-dMnbFecPbdOe, the lead-based layered oxide material is used as a positive electrode active material of a sodium ion battery; a, b, c, d and e are molar ratios of corresponding elements respectively, a is more than or equal to 0.70 and less than or equal to 1.25, b is more than or equal to 0.10 and less than or equal to 0.45, c is more than or equal to 0.10 and less than or equal to 0.45, d is more than or equal to 0.01 and less than or equal to 0.25, and e is more than or equal to 1.75 and less than or equal to 2.25. The lead-based layered oxide material disclosed by the invention is simple to prepare, and the abundance of elements contained in the earth crust is relatively high, so that the r