50results about How to "Charge control" patented technology

The invention relates to a charging control method, a charging control device, a secondary cell system, a secondary cell power supply and a cell application device. The charging control method for a non-aqueous electrolyte secondary cell is a charging control method for controlling a state of charge of a non-aqueous electrolyte secondary cell that has a non-aqueous electrolyte between electrodes, a target state of charge serving as a target for stopping charging is preset in correspondence with an ambient temperature of the non-aqueous electrolyte secondary cell, and the target state of charge (e.g., 95%) for when the ambient temperature is a specific temperature (e.g., 25 DEG C. or 20 DEG C. to 30 DEG C.) that has been specified in advance is set higher compared to the target state of charge for a temperature other than the specific temperature.

Provided is a charging control circuit (30) that controls a charging unit (3) for charging a lead storage battery (10) to be used for a power supply of a battery driven apparatus (1), and that is provided with: a first acquisition unit (36) for acquiring the total discharging electric-quantity coming from the lead storage battery (10), starting from when the last discharging was completed to when discharging is to be started this time according to a charging-start instruction, by dividing the total discharging electric-quantity into a first discharging electric-quantity that is the amount of electricity discharged by a discharging current the current value of which is less than a prescribed level, and a second discharging electric-quantity that is the amount of electricity discharged by a discharging current the current value of which is equal to or more than the prescribed level; a calculation unit (37) for acquiring a first charging electric-quantity corresponding to the first discharging electric-quantity acquired by the first acquisition unit (36), and a second charging electric-quantity corresponding to the second discharging electric-quantity acquired by the first acquisition unit (36), and acquiring the sum of the first charging electric-quantity and the second charging electric-quantity as a charging electric-quantity necessary for charging the lead storage battery (10); and a charging control unit (34) for controlling the charging of the lead storage battery (10) by the charging unit, on the basis of the charging electric-quantity acquired by the calculation unit.

The invention discloses a mobile phone shell and a charging method thereof, and relates to the technical field of mobile phone power supply. According to the embodiment of the invention, a discharge current can be distributed by combining the actual use demand of users. The mobile phone shell comprises a first external interface, a second external interface, a battery and a control circuit, wherein the first external interface is connected with the control circuit, the control circuit is further connected with the second external interface and the battery, the first external interface is connected with an external power supply and then receives the charging current input by the external power supply, the control circuit is configured to control the charging current of the mobile phone whenthe first external interface is connected with the external power supply and the second external interface is connected with the mobile phone according to the actually supporting charging current bythe mobile phone in the charging process, and a residual current is employed to charge the battery. The mobile phone shell and the charging method thereof are applied to charging of the mobile phone.

A preparation method of a high-throughput cross-linked polyimide solvent-resistant nanofiltration membrane, comprising an interface polymerization step, a polyamine modification step, a chemical cross-linking step, and a solvent activation step. The invention significantly improves the separation performance and solvent resistance performance of the membrane by modifying the surface of the original membrane with polyamines after interfacial polymerization. The polyamine has more free amino groups, which greatly enhances the degree of crosslinking of the interfacial separation layer and effectively improves the solvent resistance of the membrane; by using polyamine modification reagents containing different additives, the separation of the membrane can be effectively improved. performance. The preparation process of the invention is simple, and has good application prospects in the field of organic solvent system separation and water treatment containing organic solvents.

The present application relates to a charging control method and device, electronic equipment, and a computer-readable storage medium, including: detecting deformation of a battery to obtain a deformation detection result, and monitoring the number of charge and discharge times of the battery to obtain the current number of charge and discharge. The charging process of the battery is controlled according to the deformation detection result and the current charge and discharge times. Among them, the abnormal deformation of the battery can be obtained by detecting the deformation of the battery, and the service life of the battery can be obtained by monitoring the charging and discharging times of the battery. Therefore, the charging process of the battery is carried out according to the deformation detection results and the current charging and discharging times Control can control the battery to be charged within a safe range after considering the abnormal deformation and service life of the battery, so as to prevent unsafe events such as battery explosion or battery spontaneous combustion.

The invention discloses a dual-battery mobile terminal and a wireless charging system thereof. The wireless charging system includes: a main battery, a secondary battery, a wireless receiving module, and a charging control module; the wireless receiving module senses wireless charging signals, and converts the sensed wireless charging signals into voltage and current signals; furthermore, the charging control module converts The voltage and current signals output by the wireless receiving module are output separately to charge the main battery / auxiliary battery, or simultaneously output to charge the main battery and the auxiliary battery. Thus, the control of charging the dual batteries is realized.

The invention belongs to the field of applied superconducting power electronics, and in particular relates to a synchronizing current and voltage decoupling control method of a voltage-source-type unit power factor high-temperature superconducting energy storage system converter. The control method is characterized by comprising the following steps: designing a voltage outer ring control module at a direct-current side and a current inner ring control module at an alternating-current side respectively with respect to a mathematical model of a superconducting energy storage system converter under dq synchronizing rotary coordinates; controlling an 'H'-shaped bidirectional DC-DC (direct-current to direct-current) chopper based on an SPWM (sinusoidal pulse width modulation) technology by adopting a hysteresis loop PI current closed-loop control method in a charge mode and a hysteresis loop PI voltage closed-loop control method in a discharge mode; and finally implementing the synchronizing current and voltage double-fed control method of a voltage-source-type SMES (superconducting energy storage system) converter according to the active current requirement and the current value of a superconducting magnet under the power grid unit power factor. The control method provided by the invention has the advantages of multi-stage current decoupling control, rapid response speed, easy implementation of control algorithm and the like, and the method is especially suitable for the application occasions for improving the electricity energy quality of a power grid and inhibiting the low-frequency oscillation of a power system and the like.