Abstract: The present invention discloses a selenium-doped MXene composite nano-material and a preparation method thereof, comprising the following steps: (1) adding MXene and an organic selenium source into a dispersant, and stirring to prepare a dispersion with a concentration of 1 mg/ml to 100 mg/ml; (2) transferring the dispersion into a reaction kettle, then heating, reacting, and then naturally cooling to a room temperature; (3) washing the product obtained in the step (2) with a cleaning agent, then centrifuging to collect a precipitate, and drying the precipitate under vacuum; and (4) placing the sample obtained in the step (3) into a tubular furnace for calcination, introducing protective gas, heating, and then cooling to a room temperature to obtain the selenium-doped MXene composite nano-material. The material prepared by the present invention has high specific surface area, good electrical conductivity, cycle stability performance, rate performance and high theoretical specific capacity.

Abstract: A lighting apparatus includes a top cover, a bottom cover, a light passing cover, a battery, a power circuit, a power switch and a light source plate. The top cover has an opening part for defining a light opening. The bottom cover is fixed to the top cover forming a containing space. The light passing cover has a larger diameter than the light opening. A peripheral edge of the light passing cover engages an inner surface of the opening part of the top cover. The battery is stored in the container space. The power circuit is connected to the battery for providing a current to the LED modules of the light source plate. The power switch is connected to the power circuit to control the LED modules. The light source plate has a top side mounted with multiple LED modules.

Abstract: A lighting apparatus is designed for connecting to an external signal wire. The external signal wire has an end electrode. The lighting apparatus has a light housing, multiple LED chips, a driver component, a printed circuit board, a socket and an elastic clip. The light housing has a light opening and a back cover. The back cover has a cover entrance. The printed circuit board is used for mounting the plurality of LED chips and the driver component. The socket has a guiding entrance aligning with the cover entrance. The end electrode of the external signal wire is inserted into the guiding entrance. The elastic clip has a clip part and an extended part. The extended part is electrically connected to the driver component. The clip part clips the end electrode for forming an electrical connection to the driver component via the extended part.

Abstract: A lighting apparatus includes a light body, a driver circuit and a driver box. The light body includes a light source and a light housing. The driver circuit is used for converting an external power to a driving current. a driver box. The driver box has an external housing and a driver container. The driver circuit is placed in the driver container. The driver container has a side chamber for selectively installing a manual switch coupled to the driver circuit to change a setting of the driver circuit. The driver container is placed inside the external housing and there is a glue room outside the driver container and inside the external housing. The glue room is selectively added with heat dissipation glue for heat dissipation.

Abstract: A lighting apparatus includes a light body, a driver circuit and a driver box. The light body includes a light source and a light housing. The driver circuit is used for converting an external power to a driving current.a driver box. The driver box has an external housing and a driver container. The driver circuit is placed in the driver container. The driver container has a side chamber for selectively installing a manual switch coupled to the driver circuit to change a setting of the driver circuit. The driver container is placed inside the external housing and there is a glue room outside the driver container and inside the external housing. The glue room is selectively added with heat dissipation glue for heat dissipation.

Abstract: The lighting apparatus has a wire box, a driver module, a light source and a light housing. The wire box is made of a heat dissipation material. The wire box is for placing a portion of an external wire. The driver module electrically connects to an electrode of the portion of the external wire. The light housing has a top cover and a surrounding wall. The top cover and the surrounding wall form a container space. The top cover has an inner side and an exterior side. The light source is thermally and structurally connected to the inner side for emitting a light via a light opening of the container space. The wire box is connected to the top cover of the light housing. Heat of the light source is transmitted to the wire box for heat dissipation via the back cover.

Abstract: The lighting apparatus has a wire box, a driver module, a light source and a light housing. The wire box is made of a heat dissipation material. The wire box is for placing a portion of an external wire. The driver module electrically connects to an electrode of the portion of the external wire. The light housing has a top cover and a surrounding wall. The top cover and the surrounding wall form a container space. The top cover has an inner side and an exterior side. The light source is thermally and structurally connected to the inner side for emitting a light via a light opening of the container space. The wire box is connected to the top cover of the light housing. Heat of the light source is transmitted to the wire box for heat dissipation via the back cover.

Abstract: A lighting apparatus may include a housing. A supporting structure is on an inner surface of the housing. A rotating frame is within the housing. The rotating frame is rotated on the supporting structure. A light emitting assembly includes a heat sink and a circuit board. The circuit board is within the heat sink. A light source is included in the lighting apparatus. A driving circuit is connected to the light source. A power socket structure is connected to a power supply to provide a power to the lighting apparatus on the circuit board. The light emitting assembly is connected to the rotating frame.

Abstract: The present invention discloses a selenium-doped MXene material and a preparation method thereof, comprising the following steps: (1) adding MXene and an organic selenium source into a dispersant, and stirring to prepare a dispersion with a concentration of 10 mg/ml to 100 mg/ml, wherein a mass ratio of MXene and an organic selenium source is 0.1 to 1:1; (2) transferring the dispersion into a reaction kettle, heating to 110° C. to 230° C., reacting for 10 h to 30 h, and then naturally cooling to a room temperature; and (3) washing the product obtained in the step (2) with a cleaning agent, centrifuging to collect a precipitate, and drying the precipitate under vacuum to obtain the selenium-doped MXene material. The composite material prepared by the present invention has high specific surface area, good electrical conductivity, cycle stability performance, rate performance and high theoretical specific capacity.

Abstract: A lighting apparatus includes a top cover, a bottom cover, a light passing cover, a battery, a power circuit, a power switch and a light source plate. The top cover has an opening part for defining a light opening. The bottom cover is fixed to the top cover forming a containing space. The light passing cover has a larger diameter than the light opening. A peripheral edge of the light passing cover engages an inner surface of the opening part of the top cover. The battery is stored in the container space. The power circuit is connected to the battery for providing a current to the LED modules of the light source plate. The power switch is connected to the power circuit to control the LED modules. The light source plate has a top side mounted with multiple LED modules.

Abstract: A lighting apparatus may include a housing. A supporting structure is on an inner surface of the housing. A rotating frame is within the housing. The rotating frame is rotated on the supporting structure. A light emitting assembly includes a heat sink and a circuit board. The circuit board is within the heat sink. A light source is included in the lighting apparatus. A driving circuit is connected to the light source. A power socket structure is connected to a power supply to provide a power to the lighting apparatus on the circuit board. The light emitting assembly is connected to the rotating frame.

Abstract: A lighting apparatus is designed for connecting to an external signal wire. The external signal wire has an end electrode. The lighting apparatus has a light housing, multiple LED chips, a driver component, a printed circuit board, a socket and an elastic clip. The light housing has a light opening and a back cover. The back cover has a cover entrance. The printed circuit board is used for mounting the plurality of LED chips and the driver component. The socket has a guiding entrance aligning with the cover entrance. The end electrode of the external signal wire is inserted into the guiding entrance. The elastic clip has a clip part and an extended part. The extended part is electrically connected to the driver component. The clip part clips the end electrode for forming an electrical connection to the driver component via the extended part.

Abstract: The present invention discloses a tellurium-doped MXene composite material and a preparation method thereof, comprising the following steps: (1) adding MXene and a tellurium source into a dispersant to prepare a dispersion, and then stirring the dispersion; (2) heating the dispersion, reacting, and then cooling; (3) centrifuging the product obtained in the step (2), then washing and drying under vacuum; and (4) placing the dry product obtained in the step (3) into a corundum ark, and then transferring into a tubular furnace, heating under the protection of inert gas, retaining the temperature, and then cooling to obtain the tellurium-doped MXene composite material. The composite material prepared by the present invention can be used as a cathode of a potassium ion battery, which increases the interlamellar spacing, and optimizes an ion diffusion channel, so that the electrochemical performance of the potassium ion battery is improved.

Abstract: The present invention discloses a selenium-doped MXene composite nano-material and a preparation method thereof, comprising the following steps: (1) adding MXene and an organic selenium source into a dispersant, and stirring to prepare a dispersion with a concentration of 1 mg/ml to 100 mg/ml; (2) transferring the dispersion into a reaction kettle, then heating, reacting, and then naturally cooling to a room temperature; (3) washing the product obtained in the step (2) with a cleaning agent, then centrifuging to collect a precipitate, and drying the precipitate under vacuum; and (4) placing the sample obtained in the step (3) into a tubular furnace for calcination, introducing protective gas, heating, and then cooling to a room temperature to obtain the selenium-doped MXene composite nano-material. The material prepared by the present invention has high specific surface area, good electrical conductivity, cycle stability performance, rate performance and high theoretical specific capacity.

Abstract: The present invention discloses a selenium-doped MXene material and a preparation method thereof, comprising the following steps: (1) adding MXene and an organic selenium source into a dispersant, and stirring to prepare a dispersion with a concentration of 10 mg/ml to 100 mg/ml, wherein a mass ratio of MXene and an organic selenium source is 0.1 to 1:1; (2) transferring the dispersion into a reaction kettle, heating to 110° C. to 230° C., reacting for 10 h to 30 h, and then naturally cooling to a room temperature; and (3) washing the product obtained in the step (2) with a cleaning agent, centrifuging to collect a precipitate, and drying the precipitate under vacuum to obtain the selenium-doped MXene material. The composite material prepared by the present invention has high specific surface area, good electrical conductivity, cycle stability performance, rate performance and high theoretical specific capacity.

Abstract: The present invention discloses a tellurium-doped MXene composite material and a preparation method thereof, comprising the following steps: (1) adding MXene and a tellurium source into a dispersant to prepare a dispersion, and then stirring the dispersion; (2) heating the dispersion, reacting, and then cooling; (3) centrifuging the product obtained in the step (2), then washing and drying under vacuum; and (4) placing the dry product obtained in the step (3) into a corundum ark, and then transferring into a tubular furnace, heating under the protection of inert gas, retaining the temperature, and then cooling to obtain the tellurium-doped MXene composite material. The composite material prepared by the present invention can be used as a cathode of a potassium ion battery, which increases the interlamellar spacing, and optimizes an ion diffusion channel, so that the electrochemical performance of the potassium ion battery is improved.