摘要:
A hard shell cell housing for an individual alkali metal cell includes a housing main body with an interior space that is configured to accommodate cell components of the individual alkali metal cell, and a housing cover configured to close off the interior space. The housing main body is formed at least substantially from plastic, and further includes at least one vapor barrier layer.
摘要:
An alkali metal-oxygen cell includes a negative electrode, an oxygen electrode, and a separator configured to conduct alkali metal ions. To improve the cycling stability of the negative electrode and also the cycling stability, the life, the high-current loading capability, the pulse loading capability and the safety behavior of the cell, the negative electrode includes at least one alkali metal titanate. In particular the at least one alkali metal titanate is one into or from which an alkali metal can reversibly be intercalated and deintercalated.
摘要:
A battery module comprising a plurality of chambers of a first type, a chamber of a second type, a plurality of chambers of a third type, at least one battery unit positioned in one of the plurality of chambers of the first type, and switching electronics positioned in the chamber of the second type. At least one of the plurality of chambers of the third type is positioned between one of the plurality of chambers of the first type and the chamber of the second type.
摘要:
A battery management system for a battery module string includes battery modules. The battery modules are electrically connectable to poles of the battery module string and individually electrically disconnectable. The battery module string is configured to generate an AC voltage by disconnecting and connecting the battery modules. The battery management system is configured to assign a respective first time period to each first battery module of the battery modules based on position of each first battery module in a battery module list. Each of the first battery module is electrically connected within a half-cycle of the AC voltage during the respective first time period.
摘要:
The disclosure relates to a drive system for an electric vehicle, comprising an electric motor, a traction battery for supplying the electric motor, an asynchronous machine, and a combustion engine for driving the asynchronous machine, wherein the asynchronous machine is arrange for charging the traction battery upon a control signal to extend the range of the electric vehicle. The traction battery has a plurality of a battery lines having adjustable output voltage for generating voltage progressions which are phase-shifted relative to one another, and each battery pack line is not only provided for supplying one of the phase connections of the electric motor but is also connected to a phase connection of the asynchronous machine. The disclosure further relates to a corresponding method for charging a traction battery having a plurality of battery lines by means of an asynchronous machine and a combustion engine disposed in series therewith.
摘要:
A battery cell includes a battery cell housing that is patterned in a form of a folding structure. In another embodiment, a battery cell includes a battery cell housing that is patterned in a form of a sandwich construction which comprises an intermediate layer and two cover layers. In a further embodiment, a battery cell includes a battery cell housing that is patterned in a form of an inversion structure. An exemplary battery includes a plurality of such battery cells, and can be comprised by a motor vehicle.
摘要:
An apparatus for providing safety measures during gas release from a vehicle battery, such as a damaged lithium-ion rechargeable battery, arranged in a volume space having an opening includes at least one shroud element. The shroud element is configured to expand into the volume space by being filled with a gas such that, upon expansion of the shroud element, openings in the shroud element are enlarged and shroud element contents are discharged into the volume space through the enlarged openings in the shroud element. The apparatus further includes a device that, upon reception of a trigger signal, is configured to fill the shroud element at least partially with carbon dioxide gas such that carbon dioxide gas is discharged into the volume space as contents of the shroud element. An installation space includes the apparatus and a method is implemented to provide safety measures during gas release from the vehicle battery.
摘要:
A battery module comprising a plurality of chambers of a first type, a chamber of a second type, a plurality of chambers of a third type, at least one battery unit positioned in one of the plurality of chambers of the first type, and switching electronics positioned in the chamber of the second type. At least one of the plurality of chambers of the third type is positioned between one of the plurality of chambers of the first type and the chamber of the second type.
摘要:
The disclosure relates to a method for battery module balancing of a battery, which comprises at least one battery module string, wherein the at least one battery module string has a plurality of battery modules connected in series or parallel, wherein each battery module has a single or a plurality of battery cells connected in parallel or in series and a coupling unit which is designed to switch on and off the battery module, said method comprising the steps of: determining a battery module state of at least two battery modules; switching off individual battery modules having a low battery module state, wherein the low state is defined by a defined ratio to an initial state of the battery modules or by a result of a comparison of all detected battery module states.
摘要:
A battery system comprises a battery which includes a plurality of battery cells connected in series and two battery poles. The battery system further comprises at least one protection device, which is connected to the battery cells in series in such a manner that after the at least one protection device is tripped, a sum of voltages of the battery cells still connected in series does not exceed a limit voltage. The battery system also comprises a switching device which electrically connects the two battery poles, the switching device being configured to short-circuit the battery when a fault signal is detected, thus tripping the at least one protection device.