7results about How to "Prevent overcharging" patented technology

This application provides a battery charging method, a battery charging device, an electronic device, and a storage medium, belonging to the field of charging technology. The method includes: querying a charging mapping table based on first battery state parameters of the target battery at the start of charging to obtain a first charging current; performing a first charging process on the target battery based on the first charging current; and performing lithium plating detection on the target battery based on a preset charging cycle; determining a target charging mode based on the lithium plating detection result; acquiring second battery state parameters at the moment the target battery switches from the first charging process to charging using the target charging mode; querying a charging mapping table based on the second battery state parameters to obtain a second charging current; and performing a second charging process on the target battery based on the target charging mode and the second charging current. This application's embodiment determines the charging mode based on the battery's state parameters during actual use, enabling rapid charging of the battery while ensuring battery safety.

The application discloses a solar charging and discharging management circuit, which comprises a power management module, a battery pack, an analog front end monitoring module, a power output branch and a main control module. The input end of the power management module is connected with a solar panel interface, which is used for converting input electric energy through a maximum power point tracking (MPPT) function. The battery pack is connected with the power output end of the power management module. The analog front end monitoring module is connected with the battery pack, which is used for collecting physical state information of the battery pack in real time. The input end of the power output branch is connected with the battery pack and the power output end of the power management module, and the output end of the power output branch is provided with a controlled switch, which is used for providing direct current to an external load. The main control module is connected with the analog front end monitoring module and the controlled switch, which is used for calculating battery power according to the physical state information and controlling the opening and closing states of the controlled switch according to the battery power. Through MPPT conversion, AFE high-precision monitoring and main control intelligent closed-loop control, the application realizes efficient energy utilization and accurate battery protection.

The application relates to a battery protection method, device, equipment, storage medium and program product. The method is applied to an energy storage system, the energy storage system comprises a plurality of energy storage modules and a controller connected with the energy storage modules, the energy storage modules are connected in series, the energy storage module comprises a power module, a switching circuit, a battery and a current detection device, the power module is connected with the battery through the switching circuit, and the method comprises the following steps: in the case that the power module in the energy storage module is in a target state, comparing the current of the battery in the energy storage module detected by the current detection device with a preset current corresponding to the target state to obtain a comparison result, and controlling the current of the battery according to the comparison result and the switching circuit to perform protection processing on the battery. By comparing the current of the battery with the preset current corresponding to the target state, the battery is protected, the overcharging or overdischarging of the battery can be prevented, the probability of overcharging or overdischarging of the battery is reduced, and the safety of the battery is improved.

The utility model discloses a high temperature downhole power supply device, including output interface, upper shell, lower shell, main drive power supply, spare drive power supply, control board power supply, main control board, drive board, single core cable input interface, main drive power supply, spare drive power supply all are arranged in the middle of upper shell and lower shell, single core cable input interface electricity is connected control board power supply, and power supply supplies power to main control board, and main control board controls drive board drive, and drive board controls the switch of main drive power supply, spare drive power supply respectively. The utility model discloses dual power module parallel operation and possesses the redundancy switching function, eliminates the single point failure risk, sets up main control unit, real -time monitoring battery voltage, current, temperature, prevents overcharge, overdischarge, overcurrent, short circuit, effectively overcomes the performance degradation and failure risk under the severe working condition such as high temperature, high pressure and strong vibration.

This application belongs to the field of battery parameter estimation technology, and particularly relates to a battery SOC estimation method, apparatus, device, and medium based on Kalman filtering. The solution provided in this application addresses the problem that small errors in SOC estimation of lithium iron phosphate batteries caused by the battery voltage plateau period in traditional Kalman filtering methods have a significant impact. Based on the Kalman filtering algorithm, an improved formula is introduced, and the value of the voltage plateau period gain G in the improved formula is determined, effectively improving the SOC estimation accuracy for lithium iron phosphate batteries. Accurate SOC estimation ensures maximum battery utility, reduces costs, and prevents resource waste.

The application discloses a range extending drive mechanism, an aircraft and a battery pack assembly. The range extending drive mechanism comprises an internal combustion engine, a generator, an electric motor, a plurality of battery packs and a plurality of charging circuits corresponding to the battery packs respectively, and further comprises a first array switch and a controller. The internal combustion engine is connected with the generator; the generator is connected with the electric motor. In addition, the generator is connected with the plurality of charging circuits through the first array switch respectively; and the first array switch is connected with the controller, and is used for controlling the conduction and disconnection between the charging circuits and the generator.