Positive electrode material directly coated with solid electrolyte and technological method thereof

• Main Author: ZUO LIANYONG
• Format: Patent
• Language: Chinese; English
• Published: 19.10.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention provides a technological method for directly performing coating modification on a positive electrode material by a solid electrolyte material, and the positive electrode material obtained thereby. In order to improve the electronic conductivity characteristic of the positive electrode material and improve the comprehensive performance of the coating modification on the positive electrode material by the solid electrolyte material, the invention uses a carbon material and the solid electrolyte material for performing composite coating modification on the positive electrode material. Firstly, the positive electrode material, the carbon material and the solid electrolyte material are put into a high-speed mixer according to a certain ratio and mixed uniformly, and then a mixtureis put into a mechanical fusion coating machine for fusion coating. The positive electrode material after the coating modification has greatly improved ratio characteristic and cycle characteristic. 本发明提供了种用固态电解质材料直接对正极材料进行包