21results about "Electrochemical generators" patented technology

The utility model belongs to the field of renewable energy sources and energy conservation and environmental protection, and particularly relates to an integrated portable oxygen generation device which comprises a lithium ion battery, a PEM electrolytic tank, a hydrogen fuel cell, a photo-thermal interface evaporation device and an oxygen storage device. The lithium ion battery serves as a portable power source and supplies power to the electrolytic tank, a high-temperature water vapor inlet and an oxygen outlet are formed in one side of the electrolytic tank, water vapor comes from the photo-thermal interface evaporation device, and hydrogen generated on the other side of the electrolytic tank enters the fuel cell through the porous insulating spacer and the porous collector plate to serve as a raw material. And the water and the electricity react with oxygen in the air on the other side of the fuel cell to generate water and generate electric energy at the same time, and the generated water and electricity supply power and raw materials for the next electrolytic cell. According to the utility model, the coupling of the electrolytic tank and the fuel cell is fully utilized, and the photo-thermal interface evaporator is combined to generate high-temperature water vapor so as to improve the water electrolysis efficiency, so that the aim of obtaining oxygen from air in portable equipment is fulfilled, and the device can be used for supplying oxygen in a short time under special conditions such as outdoor activities and emergency treatment.

An omni-directional mobile ball serving robot carrying a super capacitor relates to the technical field of robots, and comprises a chassis used for supporting a robot body; the power system comprises four moving wheels and is mounted on the chassis, so that the robot body can move in all directions; the ball serving mechanism is mounted on the chassis and is used for realizing ball serving action; the power supply system comprises a battery unit and a super capacitor unit. By carrying the super capacitor unit, short-time high-power output can be effectively provided, the problem that a traditional battery is insufficient in power in a high-power demand scene is solved, and particularly in high-load operation such as climbing, intervention of the super capacitor unit ensures that the robot can successfully complete high-difficulty actions. Due to the fact that the robot can keep stable performance during high-power output, the fault risk caused by insufficient power is reduced, and the operation safety and stability of the robot are improved.

Method for determining an optimized system behavior of a hybrid energy storage system (1) with at least a first energy storage device (2) and a second energy storage device (3) by determining an optimal adjoint (λ*), comprising: - Executing a first iteration loop (10) in several passes, where each successive pass is associated with a possible adjoint (λ), - wherein, for each iteration of the first iteration loop (10), a second iteration loop (20) is executed, which includes the steps: • Determining an optimal control variable (u*) for each successive point in time within a given period, where the optimal control variable (u*) is a quantity that describes the energy absorbed or released by the second energy storage device and is determined based on a minimum of a Hamiltonian function (H), where the Hamiltonian function (H) belongs to the energy storage system (1) and depends on a modeled system parameter (L) m ), the possible adjoint (λ) and a storage state (SoC2) of the second energy storage (3) is, where the modeled system parameter (L m ) is a parameter of the hybrid energy storage system (1) to be optimized, and is determined according to a predefined performance profile which is traversed by the energy storage system (1) in the predefined period, and • Calculating a final memory state (SOC) 2E ) of the second energy storage device (3), which the second energy storage device (3) exhibits after the specified period, if the energy absorbed or released by the second energy storage device (3) during the specified period was controlled according to the respective optimal control variable (u*), - Detect whether the final memory state (SOC) calculated using the second iteration loops (20) 2E ) of the second energy storage (3) lies within a specified interval and provide an optimal adjoint (λ*) which corresponds to the possible adjoint (λ) of the first iteration loop (10) for which it was detected that the final storage state (SOC) 2E ) lies within the specified interval.

A vehicle is provided with an electric energy storage device including a first sub-storage device for electric energy and a second sub-storage device for electric energy, the first sub-storage device and second sub-storage device being electrically connected together by a switch assembly. The first sub-storage device and the second sub-storage device each include at least one respective electrochemical storage cell, wherein the at least one electrochemical storage cell of the first sub-storage device has a stability-optimized cell chemistry, and the at least one electrochemical storage cell of the second sub-storage device has an output-optimized cell chemistry. The at least one electrochemical storage cell of the first sub-storage device is arranged in an impact assembly of the vehicle.

The utility model discloses a battery system with both high energy density and high power density, which is characterized in that the battery system comprises a box body, cylindrical lithium batteries which are sequentially arranged along the transverse direction and the longitudinal direction are arranged in the box body, and a cylindrical lithium ion super capacitor is arranged in a gap between two adjacent rows of cylindrical lithium batteries; all the cylindrical lithium batteries are electrically connected to form a lithium ion battery system, and all the lithium ion super-capacitors are electrically connected to form a lithium super-capacitance system; the voltage of the lithium ion battery system is matched with that of the lithium super-capacity system, and the lithium ion battery system is connected with a battery management system. The utility model has the advantages that the space utilization rate can be improved, the thermal load of a single battery is reduced, and the system safety and stability can be improved.

The present application relates to the technical field of CO2 capture and utilization, in particular to a kind of carbon capture liquid regeneration method and system coupled with electrolytic cell and fuel cell.The method steps are as follows: step one: carbon capture absorbing liquid A after absorbing carbon dioxide is subjected to ion membrane electrolysis treatment;Step two: the mixed gas generated in step one electrolysis is passed into the cathode of fuel cell, and hydrogen is passed into the anode of fuel cell;Step three: carbon capture absorbing liquid B after absorbing carbon dioxide is treated as fuel cell electrolyte;Step four: the electric energy generated in step three fuel cell is used to supplement the electrolysis electric energy of step one.The present application couples electrolytic cell device and fuel cell device, realizes the electrochemical regeneration of carbon capture absorbing liquid, has the advantages of high electric energy utilization rate and less secondary pollution, and can fully utilize electric energy to realize the green regeneration of carbon dioxide capture absorbing liquid.

This invention relates to the field of rocket composite energy harvesting technology, specifically to a manned rocket composite energy harvesting and power generation system and method, including a harvesting module, a conversion module, a storage module, and a distribution module. During rocket launch, the harvesting module collects various forms of energy, the conversion module converts them into electrical energy, which is then stored in the storage module. The distribution module distributes the stored electrical energy to various systems or equipment of the rocket. By harvesting various forms of energy during rocket launch and converting them into electrical energy, energy utilization efficiency can be greatly improved and energy waste reduced. Utilizing the energy during rocket launch can reduce dependence on traditional energy sources, thereby reducing the cost of rocket launch. Compared to traditional rocket propulsion methods, manned rocket composite energy harvesting and power generation technology can reduce dependence on propellants, thereby reducing safety risks during rocket launch.

A hybrid battery and energy storage component comprises a cathode layer including a cathode current collector with a battery-type cathode active material and a capacitor-type cathode active material applied thereon; an anode layer including an anode current collector with a battery-type anode active material and a capacitor-type anode active material applied thereon; and an electrolyte between the cathode and anode layers. The combination of battery-type and capacitor-type active materials on the respective electrodes realizes both high energy density and high power density characteristics within a single integrated structure.

An aerosol-generating device (100) comprises a rechargeable electrical power source (2) and at least one fuel cell reactor unit (31-1, 31-2,...) combined with one another for supplying electrical power to a heater (20) of the device. A power management system (1, 7) first activates supply of a first electrical power (HTR-PW1) from the rechargeable electrical power source to the heater, and then activates supply of a second electrical power (HTR-PW2) from the at least one fuel cell reactor unit to the heater. A first mean power value of the first electrical power is higher than a second mean power value of the second electrical power. Such power management combines short desired pre-heating time, as allowed by the high output power of rechargeable electrical power source, with high energy storage capacity, as allowed by using a fuel cell assembly.

The present invention relates to the technical field of a hybrid energy storage system composed of a fuel cell and an electrical energy storage device, and discloses a power distribution method and system for a hybrid energy storage system based on active disturbance rejection control. The present invention adopts active disturbance rejection control, which includes four parts: a nonlinear tracking differentiator, an extended state observer, feedback, and disturbance compensation. The nonlinear tracking differentiator generates a tracking trajectory and a differential trajectory based on the bus voltage and the reference voltage; the extended state observer is used to generate three state estimation outputs corresponding to the tracking trajectory, the differential trajectory, and the disturbance. In the feedback part, the tracking trajectory and the differential trajectory generated by the nonlinear tracking differentiator are respectively subtracted from the corresponding state estimation outputs generated by the extended state observer to obtain two tracking errors, and their weighted sum is calculated. Finally, disturbance compensation is performed through the disturbance observation value to obtain the reference value of the bus current to control the operation of the system. The present invention can effectively reduce the bus voltage fluctuation and ensure the safe operation of the hybrid energy storage system.

The invention relates to the technical field of batteries, and provides a battery pack and a power utilization device.The battery pack comprises a box body and a battery unit arranged in the box body, the battery unit comprises a first battery and a second battery, and the first battery and the second battery are stacked in the first direction; the first battery comprises a first electrode assembly with a first negative plate, the first negative plate comprises a first negative current collector, and a deposition layer is formed on at least one surface of the first negative current collector after the first battery is charged; the second battery comprises a second electrode assembly with a second negative plate, the second negative plate comprises a second negative current collector and a second negative active material layer, and the second negative active material layer is attached to at least one surface of the second negative current collector. By utilizing the characteristic that the expansion change of the first battery is smaller than that of the second battery, the expansion amount of the battery unit in the first direction is reduced, and the probability of deformation of the box body is reduced.

A carbon dioxide treatment apparatus includes: a capturing device that captures carbon dioxide; and an electrochemical reaction unit that electrochemically reduces the carbon dioxide captured by the capturing device, and the electrochemical reaction unit includes a cathode, an anode, an anion exchange membrane provided between the cathode and the anode, a cathode-side liquid flow path which is provided adjacent to the cathode and through which an electrolytic solution flows, an anode-side liquid flow path which is provided adjacent to the anode and through which the electrolytic solution flows and a first liquid supply path which supplies, to the anode-side liquid flow path, the electrolytic solution A which has flowed through the cathode-side liquid flow path.

The present invention involves a rechargeable power source comprises a plurality of low voltage DC rechargeable chemical cell stacks. Each cell stack comprises at least one rechargeable chemical cell. Each cell stack has a corresponding power transaction unit in series comprising an internal bimodal near-field wireless link configured for converting low voltage DC power of the cell stack to a power format required for an external power load, and for converting power from an external power source to low voltage DC power for recharging the cell stack. Various sensors are disposed on every cell stack in wired communication with the corresponding power transaction unit. A power system controller in communication with every power transaction unit adjusts the bimodal link of each power transaction unit based on power format requirements of the external power load or external power source and on sensor data received from the power transaction unit about the corresponding cell stack.

A system for managing an energy storage device in a vehicle includes a battery module having an energy pack and a power pack connected in parallel with the energy pack. A controller is configured to determine a minimum state of charge for respective battery cells in the power pack such that a respective voltage of the power pack is equal to the respective voltage of the energy pack. The power pack is the sole source of power for the vehicle during a first stage, wherein the power pack is discharged during the first stage until the minimum SOC is reached. In the second stage, the energy pack and the power pack simultaneously supply power to the vehicle. Operation of the vehicle is controlled in part based on the minimum SOC, wherein the controller is configured to maintain the minimum SOC for the power pack during the second stage.

A retention amount management system includes a detector that detects an amount of retention and a server that adjusts an amount of production of hydrogen in a production facility such that the amount of retention of hydrogen retained in a retention facility for a predetermined period attains to a target amount of retention. The server sets the target amount of retention such that an amount of hydrogen α corresponding to an amount of surplus electric power during a preparation period during which electric power generated per prescribed period by using renewable energy is higher than a threshold value is larger than an amount of hydrogen β corresponding to the amount of surplus electric power during an ordinary period.

The present invention discloses a scheduling system and method for a hybrid energy storage system, including step S1: detecting whether a scheduling command has been received by a CPU in real time and detecting and obtaining the maximum power of a power-type energy storage medium; step S2: turning on and replenishing a capacitive energy storage medium if the power value required by the scheduling command is greater than the maximum power of the power-type energy storage medium; step S3: simultaneously outputting and predicting the amplitude and duration of the next scheduling command using a convolutional neural network; and step S4: adjusting both energy storage media based on the predicted amplitude and duration to respond to the scheduling command. The scheduling method for a hybrid energy storage system predicts the amplitude and duration of the next scheduling power command based on the statistical characteristics of historical data, significantly improving the controllability of power scheduling and enabling application public power to be pre-configured, thereby improving power scheduling efficiency.

A hydrogen storage and / or delivery system comprises a hydrogen storing emulsion formed from a perfluorocarbon (PFC) and a surfactant present in an aqueous medium. The hydrogen storing emulsion releasably retains hydrogen gas and may be in a hydrogen containing emulsion state or a hydrogen absorbable emulsion state. The emulsion may be supplied in a vessel configured to receive and provide hydrogen gas, thereby comprising a device for storing and providing hydrogen gas. The hydrogen containing emulsion may be configured to release the hydrogen gas upon sonication.

The invention discloses a grid-connected mode control method, system and device of a wind-light-hydrogen combined energy storage power generation system EMS and a medium, and relates to the field of energy storage power generation, and the method comprises the steps: judging the operation state of the wind-light-hydrogen combined energy storage power generation system; when it is judged that the wind-light-hydrogen combined energy storage power generation system is in a normal operation state or a function limited state, an energy storage converter is started, a contactor of an energy storage battery is closed, and a grid-connected mode is entered; whether the wind power photoelectronic system, the fuel cell subsystem and the hydrogen production subsystem are started or stopped is judged in sequence, and power distribution is carried out on the started fuel cell subsystem or the hydrogen production subsystem; and when an instruction of quitting the grid-connected mode is received, closing the wind power photoelectron system, the fuel cell subsystem, the hydrogen production subsystem and the energy storage converter, disconnecting the contactor of the energy storage battery, and quitting the grid-connected mode. The system is wide in range of subsystems, comprehensive in consideration of abnormal conditions, friendly to the service life of the subsystems, and high in energy storage and power generation efficiency.

The present disclosure relates to the technical field of batteries. Provided are a battery pack and an electrical apparatus. The battery pack comprises a case body and a battery unit provided in the case body; the battery unit comprises a first battery and a second battery, the first battery and the second battery being stacked in a first direction; the first battery comprises a first electrode assembly having a first negative electrode sheet, the first negative electrode sheet comprising a first negative electrode current collector, and a deposition layer being formed on at least one surface of the first negative electrode current collector after the first battery is charged; the second battery comprises a second electrode assembly having a second negative electrode sheet, the second negative electrode sheet comprising a second negative electrode current collector and a second negative electrode active material layer, and the second negative electrode active material layer being adhered to at least one surface of the second negative electrode current collector. Because of the characteristic that the first battery exhibits less expansion variation than the second battery, the amount of expansion of the battery unit in the first direction is reduced, thereby reducing the probability of the case body being deformed.

The invention discloses a hybrid energy storage system scheduling system and method, which includes steps S1: the CPU detects whether a scheduling instruction is received in real time, and detects and obtains the maximum power of the power type energy storage medium; S2: when the power value required by the scheduling instruction is greater than When the maximum power of the power-type energy storage medium is reached, the capacity-type energy storage medium is turned on for supplementation, otherwise the power-type energy storage medium is used to respond to the scheduling instruction; S3: While executing step S2, the convolutional neural network output predicts the amplitude of the next scheduling instruction. and duration; S4: Coordinate the two energy storage media to respond to the scheduling instructions according to the predicted amplitude and duration. This hybrid energy storage system scheduling method predicts the amplitude and duration of the next scheduled power command based on the statistical characteristics of historical data, which greatly enhances the controllability of power scheduling. It can also arrange and set the application public power in advance, improving power scheduling. efficiency.