Abstract: The present invention discloses a preparation method for a spherical Zn—Mn metal compound. The preparation method comprises the following steps: adding a metal ion solution to a weak acid carbon dot solution; and then, adding a sodium carbonate solution to the above solution at an oil bath while stirring to obtain a spherical Zn—Mn metal carbonate compound. The present invention proposes that using water-soluble or ethanol-soluble carbon dots as a carrier and polyvinylpyrrolidone as a surfactant to prepare the spherical Zn—Mn metal compound, a novel preparation method for the Zn—Mn metal compound is formed. The prepared material may be applied to a lithium ion battery and may further be applied to application researches in the field of synthesis of other electrochemical energy sources or photocatalytic materials.

Abstract: A structure for separating strong electricity and weak electricity of an alternating current (AC) charging station includes a relay, a printed circuit board (PCB), a voltage transformer, and a current transformer. An input terminal and an output terminal of the relay respectively extend with a first conductive connecting member and a second conductive connecting member, and the voltage transformer and the current transformer form a mechanical fixed connection and a conductive connection with the input terminal and the output terminal of the relay respectively through the first conductive connecting member and the second conductive connecting member. Pins of the relay, the voltage transformer, and the current transformer are electrically connected to the PCB. When the relay is turned on, the strong electricity directly flows out through the voltage transformer, the relay, and the current transformer, and the weak electricity flows out through the PCB.

Abstract: A charging station comprising a charging station body and a mounting frame; the charging station body comprises an accommodating cavity; a terminal connector is disposed in the accommodating cavity; a wire compartment is fixedly disposed on the mounting frame, and a socket is disposed in the wire compartment; the socket is connected to the terminal connector for power energization by plugging, and the wire compartment is disposed in the accommodating cavity; a commercial power wiring hole is disposed on the mounting frame and below the wire compartment, and a terminal used for connecting to commercial power in the wire compartment is connected to an external side by the commercial power wiring hole; a plugging and unplugging connection of the terminal connector and the socket is controlled by a plugging and unplugging connection method of the charging station body and the mounting frame.

Abstract: The present invention discloses a preparation method for a spherical Zn-Mn metal compound. The preparation method comprises the following steps: adding a metal ion solution to a weak acid carbon dot solution; and then, adding a sodium carbonate solution to the above solution at an oil bath while stirring to obtain a spherical Zn-Mn metal carbonate compound. The present invention proposes that using water-soluble or ethanol-soluble carbon dots as a carrier and polyvinylpyrrolidone as a surfactant to prepare the spherical Zn-Mn metal compound, a novel preparation method for the Zn-Mn metal compound is formed. The prepared material may be applied to a lithium ion battery and may further be applied to application researches in the field of synthesis of other electrochemical energy sources or photocatalytic materials.