Abstract: Provided is a method for preparing a hard carbon anode of a lithium/sodium ion battery by biochar, which includes the following steps: S1 biochar pretreatment, S2, preparing a precursor material and S3 pyrolysis carbonization, by a modification of the biochar, setting carbonization temperature and carbonization time, and controlling a cooling rate, so that the obtained biochar generates amorphous carbon after carbonization with low graphitization degree, few surface defects, larger charge-discharge specific capacity, and stable performance in the cycle charging and discharging process; at the same time, the process of the application is relatively simple, and a special complex process is reduced; the present method is suitable for a large-scale industrial production without special adjustment or control of a morphology; and the product performance is relatively good and thus has certain competitive advantages.

Abstract: A driving method for an electronic paper display device is provided, belongs to the field of display technology, and can solve the problem of ghost in the existing electronic paper display device. A driving stage of the electronic paper display device includes a first shaking stage including a first sub-shaking stage; the balance stage is before the display stage. The method includes: based on a to-be-displayed image, applying first, second and third driving signals to first electrodes in macrostructures to display black, white and red, respectively; applying a voltage signal to the second electrodes, the voltage signal includes an alternating second pulse signal in which positive, zero and negative voltages are sequentially alternated in the first sub-shaking stage; the first and second pulse signals are equal in an absolute value of an active voltage and are opposite to each other in voltage polarity.

Abstract: A driving method for an electronic paper display device is provided, belongs to the field of display technology, and can solve the problem of ghost in the existing electronic paper display device. A driving stage of the electronic paper display device includes a first shaking stage including a first sub-shaking stage; the balance stage is before the display stage. The method includes: based on a to-be-displayed image, applying first, second and third driving signals to first electrodes in macrostructures to display black, white and red, respectively; applying a voltage signal to the second electrodes, the voltage signal includes an alternating second pulse signal in which positive, zero and negative voltages are sequentially alternated in the first sub-shaking stage; the first and second pulse signals are equal in an absolute value of an active voltage and are opposite to each other in voltage polarity.

Abstract: A charging connector for an electrical vehicle has a connector base, a tubular first conductive terminal mounted in the connector base, an insulating isolation member mounted in the first conductive terminal, and a second conductive terminal mounted in a center of the isolation member and coaxially disposed in and electrically isolated from the first conductive terminal. The isolation member has at least one annular groove recessed in an upper surface of the isolation member, extending downwardly, and coaxially surrounding the second conductive terminal. A creepage distance between the first conductive terminal and the second conductive terminal is increased and a surface area for heat dissipation is increased to meet safety specifications.

Abstract: An assembled electrical connector has a base having a terminal stage formed on a top thereof, an upper cap, a first conductive terminal mounted in a center of the terminal stage, and a second conductive terminal externally assembled on the base. The second conductive terminal is a ring sheet, surrounds the terminal stage, and is electrically isolated from the first conductive terminal via the terminal stage. The upper cap is tubular and is connected on the top of the base. The second conductive terminal abuts against an internal surface of the upper cap. Because the second conductive terminal is externally assembled on the terminal stage of the base and is not combined with the base via insert molding, the second conductive terminal does not need to use a machining product.

Abstract: Provided is a method for preparing a hard carbon anode of a lithium/sodium ion battery by biochar, which includes the following steps: S1 biochar pretreatment, S2, preparing a precursor material and S3 pyrolysis carbonization, by a modification of the biochar, setting carbonization temperature and carbonization time, and controlling a cooling rate, so that the obtained biochar generates amorphous carbon after carbonization with low graphitization degree, few surface defects, larger charge-discharge specific capacity, and stable performance in the cycle charging and discharging process; at the same time, the process of the application is relatively simple, and a special complex process is reduced; the present method is suitable for a large-scale industrial production without special adjustment or control of a morphology; and the product performance is relatively good and thus has certain competitive advantages.

Abstract: An electrical connector has a base, and at least one male terminal and at least one female terminal mounted in the base. The at least one female terminal is configured to be connected with the at least one male terminal of another electrical connector. A connector assembly includes two said electrical connectors. Each one of the electrical connectors is configured to be connected with the other one of the electrical connectors. Since it needs only one mold to manufacture the two electrical connectors for two different purposes, manufacturing cost for the two electrical connectors of the connector assembly can be greatly reduced.

Abstract: A control method of an e-ink screen. The e-ink screen includes a plurality of pixels, at least one pixel includes first color charged particles and second color charged particles, and the first color charged particles and the second color charged particles are same in electrical property. The control method of the e-ink screen includes: inputting a first color driving signal to pixels expected to display a first color in the e-ink screen. The first color driving signal includes a plurality of sub-signals corresponding to a plurality of driving stages. The plurality of sub-signals include a first color imaging sub-signal and a particle separation sub-signal. The particle separation sub-signal is configured to drive the first color charged particles and the second color charged particles in the at least one pixel to move, and to separate the first color charged particles from the second color charged particles.

Abstract: An assembled electrical connector has a base having a terminal stage formed on a top thereof, an upper cap, a first conductive terminal mounted in a center of the terminal stage, and a second conductive terminal externally assembled on the base. The second conductive terminal is a ring sheet, surrounds the terminal stage, and is electrically isolated from the first conductive terminal via the terminal stage. The upper cap is tubular and is connected on the top of the base. The second conductive terminal abuts against an internal surface of the upper cap. Because the second conductive terminal is externally assembled on the terminal stage of the base and is not combined with the base via insert molding, the second conductive terminal does not need to use a machining product.

Abstract: A charging connector for an electrical vehicle has a connector base, a tubular first conductive terminal mounted in the connector base, an insulating isolation member mounted in the first conductive terminal, and a second conductive terminal mounted in a center of the isolation member and coaxially disposed in and electrically isolated from the first conductive terminal. The isolation member has at least one annular groove recessed in an upper surface of the isolation member, extending downwardly, and coaxially surrounding the second conductive terminal. A creepage distance between the first conductive terminal and the second conductive terminal is increased and a surface area for heat dissipation is increased to meet safety specifications.

Abstract: A control method of an electronic ink screen includes: outputting a first color driving signal to pixel(s) expected to display a first color in the electronic ink screen. The first color driving signal includes a first dither signal and a first color first pull-up signal in adjacent periods. The first dither signal includes a first rectangular wave signal, a first electric field cancellation signal and a first constant voltage signal. The first constant voltage signal is configured to drive first color charged particles in the pixel(s) expected to display the first color to move toward a side proximate to a display surface of the electronic ink screen, and the first color first pull-up signal is configured to drive the first color charged particles in the pixel(s) expected to display the first color to move toward the side proximate to the display surface of the electronic ink screen.

Abstract: A control method of an e-ink screen. The e-ink screen includes a plurality of pixels, at least one pixel includes first color charged particles and second color charged particles, and the first color charged particles and the second color charged particles are same in electrical property. The control method of the e-ink screen includes: inputting a first color driving signal to pixels expected to display a first color in the e-ink screen. The first color driving signal includes a plurality of sub-signals corresponding to a plurality of driving stages. The plurality of sub-signals include a first color imaging sub-signal and a particle separation sub-signal. The particle separation sub-signal is configured to drive the first color charged particles and the second color charged particles in the at least one pixel to move, and to separate the first color charged particles from the second color charged particles.

Abstract: A control method of an electronic ink screen includes: outputting a first color driving signal to pixel(s) expected to display a first color in the electronic ink screen. The first color driving signal includes a first dither signal and a first color first pull-up signal in adjacent periods. The first dither signal includes a first rectangular wave signal, a first electric field cancellation signal and a first constant voltage signal. The first constant voltage signal is configured to drive first color charged particles in the pixel(s) expected to display the first color to move toward a side proximate to a display surface of the electronic ink screen, and the first color first pull-up signal is configured to drive the first color charged particles in the pixel(s) expected to display the first color to move toward the side proximate to the display surface of the electronic ink screen.

Abstract: An embodiment provides a method, including: receiving handwriting input at a user input interface; rendering the handwriting input on a display device; after rendering the handwriting input, determining a user selection of a format for entering the handwriting input into an application; and entering the handwriting input into the application in the format selected. Other aspects are described and claimed.