Abstract: Provided are a centrifugal battery liquid injection mechanism and a liquid injection method thereof. The centrifugal battery liquid injection mechanism comprises a liquid injection device and a driving device, the liquid injection device is provided with a piston mechanism and a liquid outlet head capable of being opened and closed, and one end of the liquid injection device close to the liquid outlet head is further provided with a liquid injection port capable of being opened and closed; and the liquid injection port is used for injecting a wetting liquid into the liquid injection device. The liquid injection device is connected with a to-be-wetted device through the liquid outlet head, so as to inject the wetting liquid into the to-be-wetted device. The driving device is connected with the to-be-wetted device for driving the to-be-wetted device to move.

Abstract: A cathode plate and a battery are described. The cathode plate includes: a main body with a cuboid shape, which is formed by stacking a cathode active material layer and a cathode current collector in a first direction and has four side faces and two end faces facing each other in the first direction, and the four side faces being a first side face to a fourth side face; a cathode tab, formed by the cathode current collector extending from the first side face to an outside of the main body; and an insulating layer, formed on and covering 95% or more of the second side face to the fourth side face.

Abstract: The present application provides a cathode plate, a secondary battery, a battery module, a battery pack, and an electric device. The cathode plate includes: a current collector, a conductive coating, and a cathode active layer. The conductive coating is arranged on at least one surface of the current collector. The conductive coating includes a conductive agent having a weight content of 20% to 50% and a binder having a weight content of 50%˜80%. The cathode active layer is arranged on a surface of the conductive coating away from the current collector, and a cathode active material in the cathode active layer is at least one of a lithium manganate-based cathode material, a ternary cathode material, and a quaternary cathode material.

Abstract: Disclosed are a Fischer-Tropsch synthesis catalyst, a preparation method therefor and use thereof in a Fischer-Tropsch synthesis reaction. Wherein the catalyst comprises: an active component, being at least one selected from VIIIB transition metals; an optional auxiliary metal; and a nitride carrier having a high specific surface area. The catalyst is characterized in that the active metal is supported on the nitride carrier having the high specific surface, such that the active component in the catalyst is highly dispersed. The catalyst has a high hydrothermal stability, an excellent mechanical wear resistance, a high Fischer-Tropsch synthesis activity and an excellent high-temperature stability.

Abstract: Disclosed are a Fischer-Tropsch synthesis catalyst, a preparation method therefor and use thereof in a Fischer-Tropsch synthesis reaction. Wherein the catalyst comprises: an active component, being at least one selected from VIIIB transition metals; an optional auxiliary metal; and a nitride carrier having a high specific surface area. The catalyst is characterized in that the active metal is supported on the nitride carrier having the high specific surface, such that the active component in the catalyst is highly dispersed. The catalyst has a high hydrothermal stability, an excellent mechanical wear resistance, a high Fischer-Tropsch synthesis activity and an excellent high-temperature stability.