NEGATIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, BATTERY, AND ELECTRIC DEVICE

• Main Authors: LI, Yuan, LV, Zijian, LIU, Liangbin, WU, Kai, WANG, Jiazheng, QIN, Yuwei, DONG, Xiaobin, DENG, Jingxian
• Format: Patent
• Language: Chinese; English; French
• Published: 11.07.2024
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present application discloses a negative electrode material and a preparation method therefor, a battery, and an electric device. The negative electrode material comprises porous carbon, the porous carbon comprises an iron element and/or a sulfur element, and pores of the porous carbon comprise an active material. In this way, according to the present application, the negative electrode material can have good conductivity, small volume expansion, and high surface activity, so that the battery has high capacity, and excellent rate capability and cycle performance. La présente invention concerne un matériau d'électrode négative et son procédé de préparation, une batterie et un dispositif électrique. Le matériau d'électrode négative comprend du carbone poreux, le carbone poreux comprend un élément de fer et/ou un élément de soufre, et les pores du carbone poreux comprennent un matériau actif. De cette manière, selon la présente invention, le matériau d'électrode négative peut avoir une bonne conductivité, un