Abstract: Provided in the present disclosure are a cobalt-free high-nickel positive electrode material, a preparation method therefor and use thereof. The cobalt-free high-nickel positive electrode material comprises a cobalt-free high-nickel matrix material and a coating layer coated on the cobalt-free high-nickel matrix material, wherein a chemical formula of the cobalt-free high-nickel matrix material is LimNixMnyO2, where 0.2?m?0.8, 0.4?x?0.95, and 0.05?y?0.6; and the coating layer is TiBzO1-z, where 0.2?z?0.8. The cobalt-free high-nickel positive electrode material obtained by means of modification using the coating layer TiBzO1-z has good acid resistance and wear resistance, high mechanical strength and excellent conductivity; and when the cobalt-free high-nickel positive electrode material is used for a lithium ion battery, the high-temperature cycling performance, capacity and initial efficiency of the lithium ion battery are greatly improved.

Abstract: The present disclosure provides a cobalt-free and nickel-free positive electrode material and a preparation method therefor, and a battery. The preparation method includes: preparing a cobalt-free and nickel-free matrix material, and mixing the cobalt-free and nickel-free matrix material, a lithium source, and a divalent manganese compound for reaction to obtain the cobalt-free and nickel-free positive electrode material. By adding the divalent manganese compound, the generation of lamellar LiMnO2 and spinel LiMn2O4 is inhibited, the generation of lamellar Li2MnO3 is promoted, and the cycle performance of the material is improved.

Abstract: A stator includes a stator core and a stator winding. An inner wall of the stator core is provided with M winding slots, the M winding slots are uniformly disposed in a circumferential direction of the inner wall of the stator core. The stator winding includes flat wire conductors inserted in the winding slots, N layers of flat wire conductors are disposed in any one of the winding slots, and phase units of a first-phase winding, phase units of a second-phase winding, and phase units of a third-phase winding are sequentially and periodically arranged along the inner wall of the stator core. Each phase winding includes P parallel branches. Any one of the parallel branches connects flat wire conductors of M·N/3P layers.

Abstract: Disclosed is a multi-tactile fusion feedback handle, characterized in that the handle comprises three areas, namely, a finger tactile function area, a palm tactile function area and a space positioning function area. The finger tactile function area comprises one or more tactile buttons, a finger can operate the tactile buttons alone or in combination, and the tactile buttons have feedback functions for one or more kinds of tactility, namely, softness, temperature, surface friction and texture, and shape. The palm tactile function area comprises a multi-point independent vibration source and/or a multi-point independent heat source, which can be used for multi-point independent vibration feedback and/or multi-point independent temperature feedback, as well as vibration flow and heat flow feedback. The space positioning function area comprises a space positioning module, which can obtain position information of the handle in space in real time.

Abstract: Disclosed is a multi-tactile fusion feedback handle, characterized in that the handle comprises three areas, namely, a finger tactile function area, a palm tactile function area and a space positioning function area. The finger tactile function area comprises one or more tactile buttons, a finger can operate the tactile buttons alone or in combination, and the tactile buttons have feedback functions for one or more kinds of tactility, namely, softness, temperature, surface friction and texture, and shape. The palm tactile function area comprises a multi-point independent vibration source and/or a multi-point independent heat source, which can be used for multi-point independent vibration feedback and/or multi-point independent temperature feedback, as well as vibration flow and heat flow feedback. The space positioning function area comprises a space positioning module, which can obtain position information of the handle in space in real time.