A charge system for wireless temperature probe includes a probe body and a charging relay box detachably connected with the probe body, the probe body is provided with a first wireless charging component and a sealing structure. The charging relay box is internally provided with a power supply module, a control module and a second wireless charging component configured to establish a near field communication path with the first wireless charging component, and the control module is used to control the power supply module to adaptively supply power to the probe body through the near field communication path, the probe body comprises a handle, a sealing ring, a probe tube and an internal assembly, a head of the internal assembly is inserted in the probe tube, and a tail of the internal assembly is inserted in the handle.

A charge system for wireless temperature probe includes a probe body and a charging relay box detachably connected with the probe body, the probe body is provided with a first wireless charging component and a sealing structure. The charging relay box is internally provided with a power supply module, a control module and a second wireless charging component configured to establish a near field communication path with the first wireless charging component, and the control module is used to control the power supply module to adaptively supply power to the probe body through the near field communication path.

An apparatus is disclosed for multi-capacitor energy harvesting. In example aspects, the apparatus includes energy storage including a first capacitor and a second capacitor. The apparatus also includes an energy harvester including at least one rectifier and one or more switches. The switches can be controlled to initially charge the first capacitor and subsequently charge the second capacitor.

The present disclosure relates to an apparatus and method for generating an open circuit voltage (OCV) profile, and a problem to be solved is to generate an OCV profile according to a battery cell that has degraded under actual use conditions, thereby reducing errors in calculations of a state of charge (SOC), a state of health (SOH), or the like. To this end, the present disclosure provides a configuration for generating a charging profile by charging a battery cell, analyzing the charging profile to derive degradation information of the battery cell, and generating the OCV profile of the battery cell based on the degradation information.

An external battery, includes a battery cell, a charging unit configured to generate a charging current with an external power supplied from a charger to an input terminal thereof and to transfer the charging current to the battery, a detector configured to sense a voltage state of the input terminal and determine a current value of the charging current supplied to the battery cell, based on the voltage state, and a main controller unit (MCU) configured to control charging of the battery cell by the charging current, calculate an estimated full charging time for fully charging the battery cell, based on a current value of the charging current, and calculate a charging time while the charging current is flowing.

An external battery includes a battery cell, a charging unit configured to generate a charging current with an external power supplied from a charger to an input terminal thereof and transfer the charging current to the battery cell, a main controller unit (MCU) configured to control charging of the battery cell by the charging current, and a switch unit between the charging unit and the battery cell, wherein, when the switch unit is in an on state, the MCU changes to an active mode and allows the charging current to be transferred to the battery cell, and when the switch unit is in an off state, entering by the MCU a sleep mode and cutting off the charging current transferred to the battery cell.

A battery device includes: a main processor to monitor a voltage of a battery in a wake-up state, and perform a protection operation of a battery pack depending on a monitoring result; and a sub-processor to monitor the voltage of the battery in a sleep state of the main processor, and generate a wake-up signal for waking up the main processor when an abnormality occurs in the voltage of the battery monitored by the sub-processor. The main processor is to be woken up by the wake-up signal, monitor the voltage of the battery, determine a current status of the battery pack depending on the voltage of the battery monitored by the main processor, and perform the protection operation depending on a determination result.

An abnormal cell detection method of a battery pack including a plurality of cells, the method including obtaining a first plurality of discharge rates for each cell during a first rest period in a cell balancing state, prohibiting a cell balancing of the plurality of cells if a first cell having a first discharge rate greater than or equal to a first threshold value is detected, obtaining a second plurality of discharge rates during a second rest period for each of the plurality of cells in a cell balancing prohibition state, and detecting an abnormal cell having a second discharge rate greater than or equal to a second threshold value.

Examples of the present disclosure include an energy-storage system having a plurality of energy units, each energy unit including a battery module and a power converter coupled to a respective battery module; and at least one controller configured to (a) receive one or more parameter values from each battery module, each parameter value indicating a respective battery module state, (b) determine a difference between a largest parameter value from a first battery module and a smallest parameter value from a second battery module, (c) determine whether the difference is greater than a threshold difference, and (d) control at least one power converter to transfer energy between the first battery module and the second battery module through a lowest number of power converters in response to determining that the difference is greater than the threshold difference.

A method of performing fast-charging for a lithium-ion battery (LIB) includes sensing an environmental temperature, performing an initial constant-current charging and subsequent discharge of the LIB, and evaluating whether the sensed environmental temperature falls below a threshold temperature. If the sensed environmental temperature initially falls below a threshold temperature, the LIB is charged via a dynamic alternating current (AC) charging according to a low-temperature charging algorithm to heat and charge the lithium-ion battery. Once the LIB reaches a temperature below the threshold temperature, charging switches to a comparatively high-temperature charging algorithm.