56 results about "Mass energy" patented technology

The invention relates to the technical field of solid-state lithium ion batteries, in particular to a composite solid-state electrolyte diaphragm, a preparation method and an all-solid-state battery. According to the invention, a 3D ion / electron channel is constructed through a cellulose skeleton, an oxide electrolyte nanowire directional arrangement technology is adopted, and an in-situ interface lithium fluoride repairing layer is adopted, so that the industrialization bottleneck that high ion conduction-mechanical strength-interface stability is difficult to collaboratively optimize in the prior art is broken through; the common problems of insufficient bulk phase and interface ion conductivity, poor mechanical strength, poor compatibility with a high-nickel positive electrode / silicon carbon negative electrode and the like of a solid-state battery are effectively solved. The mass energy density of the prepared all-solid-state battery can reach 360 Wh / kg, the capacity retention ratio can still be maintained at 80% or above after 1100 times of circulation, and the all-solid-state battery successfully passes 190 DEG C thermal runaway and acupuncture tests and shows excellent safety performance and wide industrial application prospects.

The utility model relates to the technical field of battery thermal management, and discloses a battery thermal management device and a battery pack, and the battery thermal management device comprises a plurality of heat pipes, a battery cell and a cooling piece. According to the battery heat management device with the structure, in a cooling mode, a liquid working medium in the evaporation section at the bottom of the heat pipe is heated and evaporated into a gaseous working medium, the gaseous working medium rises to the condensation section at the top of the heat pipe, the gaseous working medium is in contact with a low-temperature wall surface of the condensation section to be condensed into the liquid working medium, and the liquid working medium flows back to the condensation section at the bottom of the heat pipe by gravity; and heat exchange circulation is achieved. The transition section, the condensation section and the evaporation section of the heat pipe are all in contact with the battery cell, so that the heat exchange area is greatly increased, the heat exchange amount is increased, and the cooling effect of the battery cell can be remarkably improved. The arrangement number of the cooling plates can be reduced, so that the arrangement of the cooling pipelines can be simplified, the occupied space of the cooling plates and the cooling pipelines can be reduced, and the volume utilization rate and the mass energy density of the battery thermal management device and the battery pack can be improved.

The invention discloses an integrated battery module integrated with a thermal management device, which belongs to the field of thermal management of lithium ion batteries and comprises a shell, an outer wall, an inner wall, a micro-channel, an inlet, an outlet, an accommodating bin, a bare roll core upper cover plate and a tab lead-out port. According to the invention, the heat dissipation shell is used as a battery core packaging shell, and as only one layer of water-cooled jacket (micro-channel) thin wall is arranged between the cooling liquid and the bare roll core for producing heat, the heat resistance is extremely small, and the heat dissipation path is shortest, the fastest heat dissipation rate and the optimal temperature uniformity can be realized, the heat management performance is improved, and the battery is particularly suitable for ultrahigh-rate charge and discharge scenes; a battery cell independent shell and a part of module structural members are omitted, high function integration is realized, the weight is reduced from the source of the system, and the potential of light weight is larger; the integrated heat dissipation shell serves as a main force bearing structure, and the compression resistance and impact resistance of the integrated heat dissipation shell are far better than those of a traditional liquid cooling plate only serving as an additional part in combination with the enhancement effect of metal foam. Redundant parts are reduced, and the mass energy density and the volume energy density of the battery pack are improved.

The application discloses a preparation method of a hard carbon negative electrode of a sodium ion battery suitable for high initial efficiency and super-high specific capacity. The method comprises the following steps: taking a carbon-containing material as a hard carbon precursor, and performing pre-oxidation treatment on the hard carbon precursor through a muffle furnace; adding a nitrogen-containing doping source into the hard carbon precursor, and placing the hard carbon precursor into a vacuum tube furnace containing a protective atmosphere to perform calcination pyrolysis and natural cooling. The application adopts the carbon-containing material as the precursor, adds the nitrogen-containing doping source to prepare nitrogen-doped hard carbon powder through high-temperature pyrolysis, and obtains a self-supporting structure electrode material by compounding the nitrogen-doped hard carbon powder with MXene, so that the space and mass energy densities of the electrode are greatly improved. The MXene on the surface is not only excellent in conductivity and electrochemical stability, but also can effectively block the destruction of electrolyte to the surface structure of the hard carbon, so that the initial charge-discharge efficiency and reversible specific capacity of the hard carbon negative electrode material are greatly improved.

The invention provides a silicon-containing organic resin particle and a preparation method thereof, a silicon-containing organic resin particle emulsion, an isolating membrane, a secondary battery monomer, a battery device and an electric device, the volume distribution particle size Dv50 of the silicon-containing organic resin particle is 80-320 nm, and the particle size distribution (Dv90-Dv10) / Dv50 of the silicon-containing organic resin particle is less than or equal to 1.7. The silicon-containing organic resin particles are used in the isolating membrane, so that the secondary battery monomer has high reliability, high mass energy density and good cycle performance.

This invention belongs to the field of nuclear power unit control technology, and discloses a method and apparatus for peak shaving in a cogeneration nuclear power unit based on secondary loop adjustment. The method includes: collecting the heat balance diagram of the cogeneration nuclear power unit; establishing mass and energy balance equations for each stage of the heaters in the secondary loop of the nuclear power unit, wherein a heat storage tank is installed in the secondary loop; converting the mass and energy balance equations into steam-water distribution equations; obtaining the extraction steam amount for each stage of regeneration in the secondary loop of the nuclear power unit based on the steam-water distribution equations; calculating the minimum and maximum turbine power through the work equations of the secondary loop of the nuclear power unit; defining the electrical load adjustment range of the nuclear power unit as less than or equal to the maximum turbine power and greater than or equal to the minimum turbine power; and performing peak shaving based on the electrical load adjustment range. This invention avoids the safety hazards of traditional nuclear power peak shaving and helps to improve the flexibility and scope of cogeneration nuclear power unit heat and power load adjustment.

The application relates to a dynamic-static coupling true triaxial loading test device and a rock mass energy carrying test method, which comprises a supporting mechanism, a loading frame group, a first loading assembly, a second loading assembly and a third loading assembly, a loading rod of the first loading assembly, a loading rod of the second loading assembly and a loading rod of the third loading assembly all extending into a sample loading cavity through a through hole formed in a side wall of the loading frame group, and the first loading assembly is used for providing a loading force along a first direction for a sample, the second loading assembly is used for providing a loading force along a second direction for the sample, and the third loading assembly is used for providing a loading force along a third direction for the sample, wherein the first direction, the second direction and the third direction are perpendicular to each other.

The utility model provides a kind of anti-condensation thermal energy storage power station pipeline heat preservation assembly, it is related to pipeline heat preservation technical field, the utility model includes heat preservation cotton, the outside of heat preservation cotton is equipped with adhesive tape, the side of adhesive tape away from heat preservation cotton is equipped with anti-condensation device, the anti-condensation device is through baffle, to prevent condensation to produce damage to heat preservation cotton, the anti-condensation device includes bolt, two baffles, fan, connecting pipe and several air outlet pipes, the bolt is through two baffles, to be connected with two baffles screw thread, the utility model can be equipped with baffle on the outer wall of heat preservation cotton by using anti-condensation device, to shield protection to heat preservation cotton, and fan blows in the surface of baffle, to blow away dewdrop on the surface of baffle, avoid the surface of heat preservation cotton to produce condensation water, can corrode heat preservation cotton, affect the service life of heat preservation cotton to occur, to improve the use effect of pipeline heat preservation assembly.

The utility model relates to a battery device, electric equipment and an energy storage device, and belongs to the technical field of batteries. The battery device comprises a plurality of single batteries, a lower box body and a pressing strip, the lower box body is provided with a containing cavity and comprises a base and a frame arranged on the base in a surrounding mode, the frame comprises two first walls oppositely arranged in the first direction, and the single batteries are contained in the containing cavity and arranged between the two first walls in the first direction; the pressing strip is arranged at the end, away from the base, of the frame and comprises an insulating sheet arranged in the first direction and metal sheets connected to the two ends of the insulating sheet, and the two metal sheets are connected with the two first walls respectively. According to the battery device, the electric equipment and the energy storage device provided by the invention, the structural reliability of the battery device is improved, and the mass energy density of the battery device is further improved.

Provided in the present application are an electrode sheet, a battery, and an electrical device. The electrode sheet comprises a current collector and an active material layer provided on the surface of at least one side of the current collector, the active material layer comprising a first active material layer and a second active material layer provided in the same layer as the first active material layer and connected thereto. In the direction from the first active material layer to the second active material layer, the thickness of the second active material layer gradually decreases. The first active material layer comprises a first active material, and the second active material layer comprises a second active material, the mass content of the first active material in the first active material layer being less than the mass content of the second active material in the second active material layer. The electrode sheet provided in the present application is not prone to lithium plating reaction, has high volumetric energy density and mass energy density, involves low manufacturing cost, and helps to improve the capacity and service life of batteries.

The invention discloses a flexible methanol fuel cell and a humanoid robot power supply system, and relates to the technical field of methanol power generation, the flexible methanol fuel cell comprises a flexible bag body, the two ends of the flexible bag body are provided with a liquid inlet and a liquid outlet, and the side surface is provided with a mounting opening; the membrane electrode is sealed in the mounting opening; the anode diffusion layer and the cathode diffusion layer are respectively fixed on the anode side and the cathode side of the membrane electrode, and fine wire meshes are fixed on the anode diffusion layer and the cathode diffusion layer. A humanoid robot power supply system comprises a flexible methanol fuel cell, a DMFC energy management system and an energy storage cell, and the flexible methanol fuel cell serves as a power generation unit and is integrally distributed on the outer surface of a robot. According to the flexible methanol fuel cell disclosed by the invention, the whole cell body has good bending, twisting and tensile elasticity, can adapt to various irregular surfaces and dynamic deformation scenes, and is light in weight and thin in thickness. The flexible methanol fuel cell is used as a power generation skin to be integrated on the robot, the mass energy density is improved, and the endurance working time is prolonged.

A hydrogen-rich blast furnace ironmaking system based on mass-energy conversion, comprising a water electrolysis system (2). The water electrolysis system (2) is separately connected to a hydrogen storage tank (3) and an oxygen storage tank (4); a gas outlet of the hydrogen storage tank (3) is connected to a hydrogen compressor (5); an outlet of the hydrogen compressor (5) is connected to a hydrogen buffer tank (6); the hydrogen buffer tank (6) is connected to a hydrogen injection valve group (7); the hydrogen injection valve group (7) is connected to a hydrogen preheating system (8); and the hydrogen preheating system (8) is connected to a tuyere of a blast furnace body (1) or a hydrogen injector at the lower portion of the furnace body.

The application belongs to the field of power batteries, and relates to an ultrahigh-energy-density solid-state lithium metal battery and a preparation method thereof. The battery adopts a lithium metal negative electrode, a high-voltage positive electrode and a solid-state electrolyte formed by in-situ polymerization. The key of the preparation method is that: a liquid precursor solution containing an acrylic ester monomer, a plasticizer, a fluorosulfonyl activator and an initiator is injected into a battery cell, and then, under the condition of room temperature of 20-30 DEG C, the in-situ polymerization is completed after standing for 24-48 hours, so that the solid-state electrolyte is formed. The solid-state lithium metal battery prepared by the method has the advantages of uniform interface and high stability, the mass energy density of the battery is more than 600 Wh·kg ‑1 , and the battery shows excellent cycle performance and safety performance, and solves the problems of uneven interface, many side reactions and high energy consumption existing in the existing heating in-situ polymerization technology.

The invention discloses a quality energy network health monitoring method, device and equipment and a storage medium. The method comprises the following steps: acquiring real-time monitoring data of the mass energy network by utilizing a preset mass energy network digital twinborn body based on multi-source heterogeneous data in the running process of the mass energy network; determining a parameter value of a preset health index based on the real-time monitoring data, and calculating the parameter value of the preset health index and a preset weight by using a preset health index formula to obtain a health index of the quality energy network; determining an abnormal event identification result of the mass energy network based on the multi-source heterogeneous data by using a preset mass energy network digital twin; and according to the health index and the abnormal event identification result, generating monitoring information of the quality energy network. According to the invention, real-time sensing, accurate evaluation and abnormal early warning of the health state of the quality energy network are realized.

The invention discloses an evaluation method for a global warming influence potential value of an electrode product for metallurgy. The evaluation method comprises the following steps: S1, defining a target and an evaluation range; s2, constructing a life cycle list; s3, processing the multi-output flow by a physical distribution method: distributing the generated environmental load according to the physical attribute proportion of mass, energy or heat value and the like between the main product and the by-product for the unit process with the multi-output condition, and forming a life cycle list of the metallurgical electrode product based on the functional unit; s4, environmental influence evaluation; and S5, result interpretation and optimization suggestion. The method has the advantages that the full-life-cycle environmental influence of the metallurgical electrode product is quantified comprehensively and objectively, a solid theoretical support is provided for upgrading of a production process and carbon and emission reduction in the whole process, and meanwhile, a powerful basis is provided for green attribute authentication and market promotion of the product.

The invention discloses a pressurized water reactor suppression and recirculation backflow integrated system and a use method, the pressurized water reactor suppression and recirculation backflow integrated system comprises a pressure suppression container and a shared flow channel formed by at least one fluid channel, and the shared flow channel is respectively communicated with the pressure suppression container and an internal space of a containment; wherein the shared flow channel is configured as follows: at the initial stage of an accident, a gas-phase medium in the internal space of the containment vessel is guided to the pressure suppression container, so that pressure suppression is realized; in the later period of the accident, the liquid-phase medium in the inner space of the containment vessel is guided to the pressure suppression vessel to serve as a water source for coolant recirculation. According to the invention, the pressure suppression container is provided with a shared flow channel which is also used as a pressure suppression channel of a gas-phase medium and a recirculation backflow channel of a liquid-phase medium, so that integration of a containment pressure suppression function and a recirculation backflow safety injection / containment spraying function after a reactor mass energy release accident is realized, and the space occupied by equipment is reduced; the compactness and the integration degree of the system are improved, and meanwhile the system cost is reduced.

A new species of capacitive mass energy storage system employing eutectic liquid metallic materials and 2D / 2.5D electrode structures to achieve energy densities capable of replacing battery chemistries as well as petrochemical fuels. The system utilizes metallic bonding principles and submicron-scale electrode separation to sequester high electrical and ionic charge values. Operating at substantially higher voltages than conventional capacitors, the system employs synergistic charge storage mechanisms, and specialized fabrication techniques including capillary printing. Simulations show that the technology provides high energy density simultaneous with rapid charging and near instant discharging capabilities, configurable power output in DC or AC forms, and thermal stability at elevated temperatures. Applications include electric vehicles, autonomous robotics, and medical devices, among others.

A fluidized bed granulation (FBG) system includes a pre-wetting subsystem, wherein feedstock is pre-wet to a predetermined % value, a fluidization chamber (FC), an inlet coupled to the FC, a plenum coupled to the FC by a distributor plate having slots through which a fluidization gas is passed to the FC at a velocity and a direction, an outlet compartment coupled to the FC by a termination plate having one or more filter bags, a liquid binder system adapted to introduce a liquid binder into the FC, and an outlet configured to eject granulated product, and a plurality of sensors adapted to inform a processor executing instructions maintained on a non-transitory memory, wherein the processor using a mass, energy, and fluidization balance model is adapted to optimize the FBG system to provide the granulated product having an optimized geometric mean and geometric standard deviation between about 2.0 and about 1.0.

The invention discloses a portable vital sign monitor energy consumption management optimization method based on reinforcement learning, which relates to the technical field of equipment energy consumption management and information system integration, and comprises the steps of multi-source state sensing modeling, sign monitor energy consumption behavior modeling, multi-target reward function enhancement, improved energy consumption optimization decision, energy consumption management optimization and the like. By introducing unit effective monitoring energy consumption characteristics, state input parameters with the ratio of energy consumption to monitoring output as the core are established, and refined characterization of the energy consumption state is achieved. Modeling the power characteristics of different operation stages through fuzzy clustering and a residual error correction model, and constructing dynamic energy consumption behavior parameters; in combination with monitoring quality, energy efficiency, time delay and security constraint terms, a multi-target comprehensive reward function is formed, learning strategy training is reinforced, and adaptive dynamic regulation and control of sampling frequency, data processing period and communication interval are realized. According to the method, intelligent optimization of energy consumption and improvement of endurance performance of the portable vital sign monitor can be realized.

The invention discloses an analogue simulation method for thermal runaway explosion of a lithium ion battery. The method comprises the following steps: establishing a geometric model comprising a battery shell, positive and negative pole pieces and a gas domain; adopting an ALE method to simulate the high-pressure gas behavior of the gas domain; simulating a solid structure by adopting an FEM method; setting a fluid-solid coupling effect; performing simulation calculation, and automatically converting into SPH particles and inheriting original unit attributes when the unit fails; and outputting mechanical response, failure morphology and fragment distribution information. According to the method, an FE-SPH-ALE coupling method is adopted, and mass energy conservation after unit failure is achieved; through semi-homogenized pole piece modeling, pole piece layering failure behaviors are captured; aLE state equation parameters are determined based on actual gas components, and the actual driving load is restored. Compared with the prior art, the dynamic processes of shell breakage, roll core failure, fragment flying and the like of battery explosion can be accurately reproduced, the simulation result is highly matched with the experiment, and effective guidance can be provided for battery safety design and protection structure optimization.

The utility model belongs to the technical field of heat mass energy storage, and discloses heat mass storage and release integrated energy storage equipment, which comprises a heat storage and release integrated tank, a heating U-shaped calandria and a heat exchange U-shaped calandria are alternately arranged in the heat storage and release integrated tank in a staggered manner, and the heating U-shaped calandria is used for heating heat mass fused salt or heat conduction oil stored in the tank. The utility model has the following beneficial effects: the steam turbine and the generator are integrated by adopting modularization, molten salt and heat conduction oil do not need to be pumped out for heat exchange and power generation, heat exchange is directly completed in the equipment, and the heat energy loss is reduced. And parts are reduced, and faults are reduced. And a plurality of modules of the storage and generation integrated tank can be combined according to the energy storage capacity. The method is not affected by sites and is low in overall construction investment cost.

In some aspects, the disclosure provides a rechargeable energy system. The rechargeable energy system may include a negative electrode comprising a layer of lithium metal having a density of at least about 0.4 g / cm3 and an impurity level of less than about 50 ppm by mass. The rechargeable energy system may include a positive electrode that is synthesized to be substantially free of lithium. The positive electrode may have a capacity of at least 250 mAh / g and a mass energy density of at least 800 Wh / kg.

The invention discloses a thermal mass energy storage system power grading adjustment method based on virtual asynchronous machine control, and belongs to the technical field of thermal mass energy storage systems, and the method comprises the steps: converting the alternating current output by a power grid side into direct current in the process of injecting power into a thermal mass energy storage system by the power grid side based on a virtual asynchronous machine control method; according to the direct current-alternating current converter control method based on the V / f control strategy, power frequency alternating current of a power grid is improved to high-frequency alternating current so as to be matched with power pulsation of a heat storage device side; electric energy of high-frequency alternating current is converted into heat energy to be stored by a heat and mass energy storage system based on Rankine cycle; different heat capacity intervals are divided for the current heat mass energy storage working medium temperature according to the heat mass energy storage device, the virtual inertia coefficient of the virtual asynchronous machine is adjusted, an adjustment instruction is output based on the electric power level, and the power injected or released into the heat mass energy storage system is dynamically adjusted. According to the method, power dynamic balance and frequency support between the power grid and the Rankine cycle heat and mass energy storage system are realized.

The application relates to the technical field of batteries, in particular to a thermal management assembly, a battery module and an energy storage system. The energy storage system comprises a control module and a battery module, the battery module comprises a plurality of battery cells and a plurality of thermal management assemblies, and one thermal management assembly is arranged between any two adjacent battery cells. The thermal management assembly comprises a first heating element, a second heating element and a thermal insulation layer. The first heating element has a positive temperature coefficient effect and is used for heating one of the two adjacent battery cells. The second heating element has a positive temperature coefficient effect and is used for heating the other of the two adjacent battery cells. The first heating element and the second heating element are arranged on opposite sides of the thermal insulation layer respectively. The application integrates the thermal insulation layer and the heating element with a positive temperature coefficient, the heating element simplifies the structure of the thermal management assembly, improves the volume and mass energy density of the battery module, and reduces the cost of the energy storage system.

The present application relates to the technical field of electrochemical energy storage device components, in particular to a composite polymer current collector, a preparation method and application thereof, the composite polymer current collector comprises a polymer base film and a metal layer arranged on at least one side surface of the polymer base film, wherein the material of the polymer base film comprises polyarylether resin containing a phthalazinone structure, the polyarylether resin containing the phthalazinone structure has the chemical structure shown in the following formula: wherein n is a positive integer. The composite polymer current collector provided by the present application can make the area density of the current collector lower by taking the polyarylether resin containing the phthalazinone structure as the base material and arranging the metal layer on the base material, thereby reducing the mass proportion of the current collector in the battery cell and improving the mass energy density of the sodium-based energy storage device.

The application relates to a method and system for predicting the molecular level composition of a petrochemical production stream based on multiple models, and relates to the technical field of oil refining and chemical molecular management, and comprises the following steps: determining the molecular composition of raw materials, splicing structural units based on a structural unit-bonding moment matrix framework, and constructing a molecular digital structure topology; combining a preset molecular database, a probability density function and a molecular property predictor to construct a molecular composition model; establishing a molecular level reaction network based on a catalytic reforming reaction mechanism, combining a reaction rate expression to construct a molecular level reaction kinetics model; constructing a reactor model according to mass, energy and momentum transfer equations; constructing inactivation and separation unit models, coupling multiple models in sequence, generating a full-process reaction-separation molecular level prediction model, and predicting the molecular level composition of any stream. The application solves the problems that traditional petrochemical production relies on measured results to adjust process parameters and has operation lag, and through prediction of the molecular composition of a stream, the lag can be eliminated, and the production control precision is improved.

A silicon-containing organic resin particle and a preparation method therefor, a silicon-containing organic resin particle emulsion, a separator, a secondary battery cell, a battery device and an electric device. The separator comprises a porous base membrane and a coating located on at least one side of the porous base membrane, wherein the coating comprises silicon-containing organic resin particles, the volume median diameter Dv50 of the silicon-containing organic resin particles is 80-320 nm, and the particle size distribution (Dv90-Dv10) / Dv50 of the silicon-containing organic resin particles is less than or equal to 1.7. The secondary battery cell has high reliability, a high mass energy density and good cycle performance.

The invention provides a lithium iron phosphate battery pole piece of a composite conductive agent, a preparation method of the lithium iron phosphate battery pole piece and a battery. According to the lithium iron phosphate battery pole piece of the composite conductive agent, the preparation method of the lithium iron phosphate battery pole piece and the battery, a ternary composite conductive agent system composed of the carbon nanotubes, the graphene and the carbon quantum dots according to the mass ratio is provided, and the total adding amount of the ternary composite conductive agent system is only 0.5-1.5% of the mass of a lithium iron phosphate active material; according to the system, a linear long-range conductive channel is constructed through CNT, a planar surface covering layer is formed by G, CQDs serve as a dotted gap filler, a three-dimensional conductive network is constructed synergistically, the use amount of the conductive agent is remarkably reduced, the conductive agent is used for preparing a positive pole piece, finally, the mass energy density of a lithium iron phosphate battery is increased to 180-190 Wh / kg, the lithium iron phosphate battery has excellent cycle life, the 1000-time capacity retention rate is larger than or equal to 92%, and the lithium iron phosphate battery can be applied to preparation of a positive pole piece. The method is simple in process, compatible with an existing production line and suitable for large-scale production.

The utility model provides a battery monomer, a battery device and a power utilization device, and belongs to the technical field of batteries. Wherein the battery monomer comprises a shell and an electrode assembly. The electrode assembly is housed within the housing. The wall portion of the shell is provided with a first surface, the first surface is provided with a first groove, a reinforcing piece is arranged on the groove bottom face of the first groove in a protruding mode, the reinforcing piece is connected with the groove side face of the first groove, and the wall portion and the reinforcing piece are integrally formed. According to the battery monomer, the overall weight of the shell is reduced, and meanwhile, the structural strength of the wall part of the shell is not excessively influenced; therefore, while the mass energy density of the battery monomer is improved, the phenomena that the wall part of the shell is subjected to external impact in the use process or the battery monomer is subjected to fatigue cracking or deformation damage during expansion can be relieved, so that the risk of burst damage of the battery monomer is reduced; and thus, the use stability and reliability of the battery monomer are improved while the use performance of the battery monomer is improved.