A battery and capacitor assembly for a hybrid vehicle includes a plurality of battery cells, a plurality of capacitor cells, a cooling plate, a pair of end brackets, and a housing. The plurality of capacitor cells are arranged adjacent to the plurality of battery cells such that the plurality of battery cells and the plurality of capacitor cells form a cell stack. The pair of end brackets are disposed at opposite ends of the cell stack and are attached to the cooling plate. The pair of end brackets compress the plurality of battery cells and the plurality of capacitor cells. The housing is attached to the cooling plate and encloses the cell stack and the pair of end brackets.

The disclosure relates to an electrical energy supply device having a plurality of usage units, each of which is adapted to generate or to buffer electrical energy. The disclosure proposes that the energy supply device carries out an energy exchange with multiple external components at the same time through a busbar assembly and in the energy supply device the usage units are divided up into strands and each strand end of the strand is connected across a respective galvanically separable switching unit.

Disclosed are a self-contained hydrogen power system and method for an electric car charging station. The self-contained hydrogen power system may include a high-level water purification unit configured to retain storm water, seawater or portable water in a water reserve tank, remove precipitates from the storm water, seawater or portable water, and perform water treatment on the storm water, seawater or portable water, a solar water electrolysis unit configured to generate clean hydrogen through hydrogen electrolysis and store the clean hydrogen, an energy production and storage unit configured to convert the clean hydrogen into energy through a fuel cell and perform an energy production and storage process by using energy generated by a sunlight collector, and a charging station configured to receive the energy stored in the energy production and storage unit and use the energy to charge an electric car.

An FCV includes: a driving device that generates traveling power by using at least one of electric power output from an FC system and electric power output from a battery; and a display device that presents a first indicator and a second indicator, the first indicator indicating a remaining amount of electric power to be output from the FC system, the second indicator indicating a remaining amount of electric power to be output from the battery. An amount of electric power that can be output from the FC system when the hydrogen tank is full is larger than an amount of electric power that can be output from the battery when the battery is fully charged. A presentation area of the first indicator is larger than a presentation area of the second indicator.

To provide a flying object capable of suppressing ignition of a secondary battery due to overcharging. A flying object includes a fuel cell, a secondary battery, a motor, an air resistance increasing device capable of increasing the air resistance, and a control unit. The motor drives a propulsion propeller. The fuel cell, the secondary battery, and the motor are electrically connected. The motor is driven by obtaining power from at least one of the fuel cell and the secondary battery. When the fuel cell generates an amount of power exceeding a power consumption amount, the control unit increases an amount of power supplied to the motor from the fuel cell while increasing the air resistance by operating the air resistance increasing device, and performs a power consumption control to maintain a flight state.

Methods and systems for an electric vehicle (EV) propulsion are provided. A method for operating an EV propulsion system is provided, in one example, that includes, while a traction battery assembly generates electric power, initiating start-up of a hydrogen fuel cell assembly based on a first battery state of charge (SOC) threshold and a first hydrogen fuel storage threshold to transition into a hybrid mode of operation. In the propulsion system, the traction battery assembly includes one or more traction batteries that are electrically coupled to one or more hydrogen fuel cells in the hydrogen fuel cell assembly via a distribution assembly, where the distribution assembly is electrically coupled to a traction motor.

The present application discloses a car power supply system and a solid oxide fuel cell vehicle. The car power supply system specifically comprises a first battery, a vehicle control unit (VCU), a lithium battery management system, a solid oxide fuel cell control unit, a second battery, a first relay and a second relay. If a solid oxide fuel cell controlled by the solid oxide fuel cell control unit provided by the present application cannot stop working within a short time, the first relay restores the first battery to power the VCU and the lithium battery management system after a start switch stops power supply by the first battery, so that the solid oxide fuel cell control unit is powered by the second battery to make the cell work normally and realize power off, thereby preventing the problem that the solid oxide fuel cell cannot work due to rapid power failure of the vehicle.

An energy storage system is provided for an electric vehicle. The energy storage system comprises a first energy storage source. The first energy storage source includes an ammonia tank configured to hold ammonia, an ammonia converter configured to receive ammonia from the ammonia tank and convert the received ammonia into hydrogen, and a fuel cell system communicating with the ammonia converter and configured to generate output power from hydrogen that is received from the ammonia converter.

A dual-battery fuel cell system is provided, including two supplemental batteries, each battery supporting/supplementing operation of a fuel cell stack in the system. Driving conditions associated with a fuel cell vehicle can be obtained. Based on the driving conditions, power sources of the fuel cell vehicle to provide power to fuel cell vehicle system can be determined, the power sources comprising the fuel cell stack and the two supplemental batteries. Operating conditions of each of the power sources can be assessed, and one or more of the power sources can be controlled to deliver power to the fuel cell vehicle system based on the operating conditions of each of the power sources.

Fixed point applications of producing hydrogen from hydrocarbons and using such are described. A feedstock including natural gas is introduced to a plasma reformer, and H2 is generated from the feedstock. The plasma reformer can be integrated into a number of locations for various purposes. For example, reformers can be integrated into buildings for onsite generation of H2 , either for storage, distribution as fuel, or for generating electricity for onsite needs to alleviate strain on the energy grid. Likewise, legacy natural gas distribution points or fuel stations can be converted to H2 distribution points, or further used as electricity distribution points by way of an H2 fuel cell. Likewise, reformers can be integrated into natural gas distribution networks to self-energize nodes or stations in the network via H2 fuel cells.