Abstract: A charging method, including: obtaining the number of charge-discharge cycles of a battery and an application scenario during charging; determining a target charging mode among at least two charging modes according to the number of charge-discharge cycles and the application scenario, in which different charging modes have different charging rates, and the charging modes with different charging rates have different charging damages to the battery; and charging the battery in the target charging mode.

Abstract: An ultraviolet lamp includes a lamp tube and an electrode. A discharge cavity is formed in the lamp tube. A thermistor is disposed on an end socket at a first end of the lamp tube. A receiving groove communicated with the discharge cavity is formed in the end socket and contains amalgam. The thermistor heats the amalgam in the receiving groove in the end socket. The Curie temperature of the thermistor ranges from [T1+(T2?T1)/5] to [T1+4*(T2?T1)/5], wherein T1 and T2 are respectively a minimum operating temperature and a maximum operating temperature of the amalgam in a continuous region where the ultraviolet radiation power is from 90% to 100% when the input power of the ultraviolet lamp is 100%.

Abstract: An ultraviolet lamp includes a lamp tube and an electrode. A discharge cavity is formed in the lamp tube. A thermistor is disposed on an end socket at a first end of the lamp tube. A receiving groove communicated with the discharge cavity is formed in the end socket and contains amalgam. The thermistor heats the amalgam in the receiving groove in the end socket. The Curie temperature of the thermistor ranges from [T1+(T2?T1)/5] to [T1+4*(T2?T1)/5], wherein T1 and T2 are respectively a minimum operating temperature and a maximum operating temperature of the amalgam in a continuous region where the ultraviolet radiation power is from 90% to 100% when the input power of the ultraviolet lamp is 100%.

Abstract: The disclosure provides a negative electrode for a lithium-ion battery of a terminal device. The negative electrode for the lithium-ion battery can include a current collector and at least two graphite layers. The at least two graphite layers with different capacity densities cover a surface of the current collector in a stacked manner.

Abstract: Provided herein is an ultraviolet sterilization and disinfection apparatus. One or multiple low-pressure ultraviolet lamps are arranged within the ultraviolet sterilization and disinfection apparatus. A configuration method therefor is such that the inner diameters of the low-pressure ultraviolet lamps are ?30-36 mm and the tube current density is: 0.250-0.800 A/cm2; alternatively the inner diameters are ?26-30 mm and the tube current density is: 0.280-0.850 A/cm2; alternatively, the inner diameters are ?20-26 mm and the tube current density is: 0.300-1.100 A/cm2; alternatively, the inner diameters are ?15-20 mm and the tube current density is: 0.340-1.350 A/cm2. The method allows the ultraviolet dosage of the ultraviolet sterilization and disinfection apparatus to be increased, thus increasing efficiency in sterilization and disinfection.

Abstract: Provided herein is an ultraviolet sterilization and disinfection apparatus. One or multiple low-pressure ultraviolet lamps are arranged within the ultraviolet sterilization and disinfection apparatus. A configuration method therefor is such that the inner diameters of the low-pressure ultraviolet lamps are ?30-36 mm and the tube current density is: 0.250-0.800 A/cm2; alternatively the inner diameters are ?26-30 mm and the tube current density is: 0.280-0.850 A/cm2; alternatively, the inner diameters are ?20-26 mm and the tube current density is: 0.300-1.100 A/cm2; alternatively, the inner diameters are ?15-20 mm and the tube current density is: 0.340-1.350 A/cm2. The method allows the ultraviolet dosage of the ultraviolet sterilization and disinfection apparatus to be increased, thus increasing efficiency in sterilization and disinfection.