In an aspect of the present disclosure is a system for in-flight re-routing of an electric aircraft including a battery pack configured to provide electrical power to the electric aircraft; a sensor configured to detect at least a temperature metric of the battery pack and generate a temperature datum based on the at least a temperature metric; a controller communicatively connected to the sensor, the controller configured to: receive the temperature datum from the sensor; and re-route the electric aircraft based on the temperature datum.

Certain aspects relate to a battery pack for an electric vehicle. Exemplary battery pack includes a first pouch cell and a vent configured to vent the ejecta from the first pouch cell. The first pouch cell includes at least an outer coating, at least a first pair of electrodes, at least a first pair of foil tabs electrically connected to the at least a first pair of electrodes, at least a first insulator layer located substantially between the at least a first pair of foil tabs, a first pouch substantially encompassing the at least a first pair of foil tabs and the at least a first insulator layer, and a first electrolyte within the first pouch. The battery pack is also configured to power at least a propulsor component.

Certain aspects relate to a battery pack for an electric vehicle. Exemplary battery pack includes a first pouch cell and a vent configured to vent the ejecta from the first pouch cell. The first pouch cell includes at least an outer coating, at least a first pair of electrodes, at least a first pair of foil tabs electrically connected to the at least a first pair of electrodes, at least a first insulator layer located substantially between the at least a first pair of foil tabs, a first pouch substantially encompassing the at least a first pair of foil tabs and the at least a first insulator layer, and a first electrolyte within the first pouch. The battery pack is also configured to power at least a propulsor component.

A method for thermal conditioning at least one thermal buffer of a thermal system of a vehicle, the thermal system being a rechargeable energy storage system, RESS, and/or an energy transformation system comprising fuel cells, the thermal buffer having an operating window defined by the preferred operating temperature of the thermal buffer. The method includes providing predictive power utilization of the thermal buffer as a function of time, conditioning the thermal buffer in response to the predictive power utilization, such that the thermal buffer is thermally conditioned to be within the operating window of the thermal buffer. The operating window is varying as a function of the predictive power utilization over time.

A method for thermal preconditioning at least one thermal buffer in a thermal system of a vehicle, the thermal system being a rechargeable energy storage system, RESS, and/or an energy transformation system comprising fuel cells. The method includes providing scheduled operational information of the thermal buffer, the scheduled operational information comprising a scheduled initialization time and scheduled operational load of the thermal buffer, determining whether the thermal buffer is in need of cooling or heating in order to reach a pre-determined temperature level, preconditioning the thermal buffer in accordance with the scheduled operational information such that the thermal buffer is thermally preconditioned by cooling or heating to the pre-determined level in accordance with the scheduled operational load at a time in accordance with the scheduled initialization time.

Methods and apparatuses for accurately estimating an internal temperature of a secondary battery with a charging rate SOC and a charge/discharge state taken into account are provided. A method may include a method of estimating an internal temperature (T) of a secondary battery for a vehicle, which includes a change determination process to be repeatedly performed and an internal temperature estimation process to be repeatedly performed.

Methods and apparatuses for accurately estimating an internal temperature of a secondary battery with a charging rate SOC and a charge/discharge state taken into account are provided. A method may include a method of estimating an internal temperature (T) of a secondary battery for a vehicle, which includes a change determination process to be repeatedly performed and an internal temperature estimation process to be repeatedly performed.

A vehicle-mounted device for detecting battery state comprises a controller, a load unit, and a switch unit. The load unit is coupled to the battery, the switch unit is coupled between the battery and the load unit. The controller can control the switch unit to disconnect or connect the battery and the load unit at a predefined frequency. The controller can switch the load unit to generate ripple voltage on the battery, and measure the ripple voltage of each battery cell, an abnormal state of a battery can be determined according to the ripple voltage of each battery cell.

A vehicle-mounted device for detecting battery state comprises a controller, a load unit, and a switch unit. The load unit is coupled to the battery, the switch unit is coupled between the battery and the load unit. The controller can control the switch unit to disconnect or connect the battery and the load unit at a predefined frequency. The controller can switch the load unit to generate ripple voltage on the battery, and measure the ripple voltage of each battery cell, an abnormal state of a battery can be determined according to the ripple voltage of each battery cell.

Embodiments of this application provide a battery management system (BMS) wake-up method, a BMS wake-up apparatus, and a storage medium, and pertains to the field of battery safety technologies. In this application, before a BMS hibernates, a wake-up threshold corresponding to first sampling information is determined based on an obtained extremum of the first sampling information of a battery cell. After the BMS hibernates, a sampling chip collects second sampling information of the battery cell when the BMS is hibernating, and transmits a wake-up signal to the BMS when it is determined that the second sampling information of the battery cell reaches the wake-up threshold. In this way, the BMS can be woken up in a timely manner by the wake-up signal, and therefore the BMS can find battery safety problems in a timely manner.