BINARY HIGH-NICKEL SODIUM ION BATTERY POSITIVE ELECTRODE MATERIAL, PREPARATION METHOD, AND APPLICATION

• Main Authors: ZHANG, Jingjing, RUAN, Dingshan, FENG, Maohua, LIU, Baoye, WU, Xingyu, LI, Changdong
• Format: Patent
• Language: Chinese; English; French
• Published: 04.04.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention provides a binary high-nickel sodium ion battery positive electrode material, a preparation method, and an application. The binary high-nickel sodium ion battery positive electrode material comprises: a sodium ion battery positive electrode particle material and an Ni-NaP layer coating the surface of the positive electrode particle material; mixing the sodium ion battery positive electrode particle material, a phosphate, and an organic adhesive, and sintering, and thus obtaining a binary high-nickel sodium ion battery positive electrode material, which can be applied to a sodium ion battery positive pole piece and to a sodium ion battery. In the binary high-nickel sodium ion battery positive electrode material prepared in the present invention, the Ni-NaP layer has relatively strong conductivity, is beneficial to improving particle surface conductivity, can improve the conductance rate of the positive electrode material, and promotes the transmission of ions between positive electrode pa