601 results about "Battery energy" patented technology

The invention relates to the field of power battery energy management, in particular to a power battery pack charging and discharging efficiency dynamic optimization system and method, and the system comprises a central control unit, a multi-dimensional sensing module, a dynamic charging and discharging control module, a working condition-heat dissipation cooperation module, a parallel cell equalization module and an aging adaptation optimization module. The multi-dimensional sensing module is used for collecting basic parameters, polarization characteristics, parallel state, aging degree and environmental parameters of a battery pack, the dynamic charging and discharging control module is used for collecting data, the working condition-heat dissipation coordination module adopts a three-stage heat dissipation framework, and the parallel battery cell balancing module is used for balancing the battery pack through a dynamic current distribution and voltage active balancing double-coordination mechanism. The aging adaptation optimization module is used for grading and differentially optimizing charge and discharge parameters and heat dissipation strategies based on the aging degree of the battery cell, so that the problems of low charge and discharge efficiency, poor wide temperature range adaptability, weak parallel consistency, fast aging attenuation and multi-factor coupling deterioration of the power battery pack are solved.

A battery pack according to an embodiment of the present disclosure includes: a plurality of battery modules; a tray including a mount plate on which the plurality of battery modules are seated, a front frame provided on an end portion in a longitudinal direction of the mount plate, and a rear frame provided on the other end portion in the longitudinal direction of the mount plate; a pair of side covers covering both end portions in a width direction of the tray; at least one module partition wall parallel to the front frame and the rear frame, and located between adjacent battery modules; and a battery energy management system (BEM) assembly including a BEM bracket having one end portion fastened to the at least one module partition wall and the other end portion fastened to the rear frame, and a BEM mounted on the BEM bracket.

A battery state-of-energy health assessment method and apparatus, and an electronic device and a readable storage medium. The method comprises: acquiring state-of-energy health data, wherein the state-of-energy health data is the ratio of dischargeable energy of a battery under fixed C-rate operating conditions at different states of aging to dischargeable energy of the battery under the same C-rate operating conditions at an initial stage of the battery (S101); acquiring charging energy of the battery of a target vehicle at different temperatures, and acquiring the ratio of the charging energy to theoretical charging energy (S102); and using a preset algorithm to assess the state-of-energy health data and the ratio of the charging energy to the theoretical charging energy, in order to obtain an assessment result (S103). In the method, acquiring battery state-of-energy health data and the ratio of charging energy to theoretical charging energy achieves comprehensive assessment of battery state-of-energy health from two perspectives, so as to more rationally estimate the residual driving range of electric vehicles, thereby achieving more accurate estimation results.

The invention belongs to the technical field of batteries, and particularly discloses a secondary battery, a battery pack and an electric device. A negative electrode film layer of the secondary battery contains an additive; the additive comprises a carboxymethyl cellulose compound and a modified compound thereof; the compound is beneficial to improving the ionic conductivity of alkali metal ions and reducing the diffusion polarization phenomenon, so that the internal resistance of the battery is reduced. And the content of the additive in the negative electrode film layer close to the current collector is controlled to be higher than the content of the additive in the negative electrode film layer far away from the current collector, so that the technical effects of reducing the internal resistance of the battery, controlling the cost and reducing the influence on the energy density of the battery are achieved.

The invention discloses an energy management method and device for a trailer, a storage medium and a program product, and the method comprises the steps: dividing any historical route through which the trailer travels, and obtaining sub-road sections of the historical route; determining the optimal motor power of each sub-road section according to the historical driving parameters corresponding to the sub-road sections of the historical route; according to the optimal motor power of each sub-road section and the fixed energy requirement of the trailer, different battery electric quantities corresponding to the optimal motor power in the historical route are calculated, and the corresponding relation between the optimal motor power and the battery electric quantities serves as an energy management strategy of the historical route; wherein when the driving route of the trailer is the historical route, the energy output of a battery in the trailer is controlled according to the energy management strategy corresponding to the historical route. According to the technical scheme, the technical effects that energy management is conducted on the battery of the trailer, and the energy of the battery is reasonably distributed are achieved.

The invention discloses an optimal scheduling method and system for battery energy of an unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicle energy management, and the method comprises the steps: collecting the state data of a battery module in real time, calculating the dynamic health factor of the battery module, analyzing the energy consumption supply-demand difference value of a whole flight segment through combining with a flight mission profile, and generating a space-time risk coefficient; calculating the load transfer priority of each module according to the risk coefficient and a preset strategy, dynamically distributing the discharge weight according to the load transfer priority, synchronously increasing the load of the high-priority module, and limiting the current of the low-priority module; and finally, continuously monitoring the voltage and the temperature difference, and recalculating the priority and the weight once the voltage and the temperature difference exceed the threshold until the system recovers to be stable. The cruising efficiency of the unmanned aerial vehicle cluster is remarkably improved, and the task interruption rate is reduced.

The invention discloses a battery pack energy one-time transfer method and device, relates to the technical field of energy storage, and is used for solving the problem of unbalanced energy of each single battery in a series battery pack. The device comprises a series battery pack, a central controller, a multi-way switch A, a multi-way switch B, a current sensor, an SOC detection module, a topology main circuit and a redundant battery pack. According to the method, a capacity efficiency equation is used for correcting an energy state calculation error caused by charge and discharge rate change of a single battery, and a charge and discharge energy model and a transfer current matrix are established in combination with internal loss of the battery. According to the method, each battery can reach the charge-discharge cut-off voltage at the same time in the same charge-discharge period. When the central controller detects that the battery energy is unbalanced through the SOC detection module, the battery needing energy transfer is selected through the multi-way switch A and the multi-way switch B, and energy transfer is conducted through the main circuit and the redundant battery. According to the invention, each battery can only carry out one-time energy transfer in the charging and discharging process, and compared with a traditional battery pack active equalization method, the dynamic loss in the equalization process is reduced, and the damage of repeated charging and discharging to the service life of the battery is reduced.

An illustrative system includes a location sensor configured to sense location of an electric vehicle and to generate a signal indicative of an electric vehicle's location. An electric vehicle battery cooling system is configured to provide cooling to an electric vehicle's battery. A controller is electrically couplable to receive the signal indicative of an electric vehicle's location from the location sensor and is configured to determine battery energy for the electric vehicle to reach a location of a charging station. The battery energy is based on the location of the electric vehicle and an amount of electrical energy remaining in the electric battery. The controller is configured to initiate cooling of the electric battery based on the amount of electrical energy remaining in the electric battery and the battery energy for the electric vehicle to reach the location of the charging station.

The invention discloses a battery energy efficiency control method and device, equipment, a medium and a product. The method comprises the following steps: acquiring first energy efficiency of a battery; under the condition that the first energy efficiency is smaller than an energy efficiency threshold value, target working condition parameters needed by the battery for achieving the target energy efficiency are determined, and the target working condition parameters comprise at least one of the target temperature and the target discharge depth interval; and adjusting the working condition parameter of the battery into the target working condition parameter, so that the energy efficiency of the battery is greater than or equal to the energy efficiency threshold. In this way, the energy efficiency of the battery can be automatically adjusted, and the energy efficiency of the battery is maintained within the range larger than or equal to the energy efficiency threshold value.

The invention provides a sulfinate organic positive alkali metal ion supplement for a secondary battery, and relates to the technical field of secondary batteries. The organic positive electrode alkali metal ion supplement has a structure as shown in the following general formula: [R-SO2]-M < + >, wherein M < + > is a metal cation and is selected from at least one of Li < + >, Na < + > and K < + >; [R-SO2]-is a sulfinate anion, and wherein R is an organic group. The supplement compensates irreversible capacity loss by efficiently releasing active ions, so that the energy density of the battery is improved; the oxidation potential is proper, the environmental stability is excellent, and the catalyst is not needed to decompose and easy to process; decomposition products are harmless, an electrode interface can be optimized, and the cycle life of the battery is remarkably prolonged.

The invention discloses a new energy automobile endurance mileage increasing system and method based on multi-mode energy collaborative management. The system comprises a multi-mode energy input module which is used for converting solar energy into direct current electric energy through a photovoltaic array and integrating power battery energy and hub motor kinetic energy recovery energy; the predictive management module is used for acquiring front road condition information through a V2X technology and predicting an energy consumption curve based on a deep learning model; the dynamic weight distribution module is used for calculating photovoltaic, battery and kinetic energy recovery weight coefficients through a dynamic weight distribution algorithm according to the real-time vehicle environment information and the prediction result; and the energy distribution control module is used for carrying out weighted distribution on the multi-modal energy based on the weight coefficient and outputting total available energy and a control signal so as to drive electric equipment or charge a battery. According to the invention, the problem of dynamic energy distribution during multi-energy coupling is solved, and the purposes of improving the endurance of urban roads, improving the endurance of expressways, reducing the increment cost of the system and being compatible with a 400V / 800V platform are achieved.

The invention discloses a vehicle battery energy management method and related equipment, and relates to the technical field of new energy vehicles, and the method comprises the steps: obtaining a driving mode and an environment temperature of a target vehicle; under the condition that the driving mode is a pure electric mode and the environment temperature is lower than a preset temperature threshold value, predicting first time sequence data of the power demand of the target vehicle along with time change in a future preset time period; according to the first time sequence data, determining a target net energy income obtained by heating the power battery of the target vehicle; and if the target net energy income is greater than the preset energy income threshold, heating the power battery to the target battery temperature. The predictive decision is made by introducing the target net energy benefit, the battery heating is intelligently controlled in the low-temperature pure electric mode, the endurance and driving experience is remarkably improved, the optimal energy utilization is ensured, and low-cost and high-benefit popularization and application can be realized by relying on the existing hardware.

The invention discloses a sulfide solid electrolyte and a preparation method thereof, and relates to the technical field of batteries. The sulfide solid electrolyte comprises a Li6PS5Cl inner core and a Li3PO4 coating layer, wherein the surface of the Li6PS5Cl inner core is coated with the Li3PO4 coating layer. And the Li3PO4 coating layer can effectively block moisture and oxygen and inhibit the hydrolysis reaction of Li6PS5Cl. Compared with traditional Al2O3 coating, the Li3PO4 coating layer and Li6PS5Cl are high in lattice matching degree, the interface bonding force is high, and secondary reaction caused by falling can be effectively avoided. The introduced Li3PO4 can be used as a barrier layer or redox reaction of Li6PS5Cl is inhibited through a surface chemical passivation mechanism, the electrochemical window of the Li6PS5Cl material is improved, electron leakage can be reduced, and the material is very suitable for a high-voltage positive electrode material system and can significantly improve the energy density of a battery.

The utility model provides a battery energy distribution unit, a battery pack and a vehicle, and relates to the technical field of new energy battery packs. According to the battery energy distribution unit, the shell with the mounting cavity is arranged, the control panel and the electronic device assembly are both arranged in the mounting cavity, the control panel is used for the battery management system to monitor the state parameters of the battery pack, and the control panel is further used for controlling opening and closing of the high-voltage electrical loop and the low-voltage electrical loop through the electronic device assembly. Meanwhile, the main positive relay and the fuse are connected through the connecting copper bar with the heat dissipation part, and the heat dissipation part faces the inner bottom wall of the mounting cavity and abuts against the inner bottom wall of the mounting cavity, so that heat dissipation is performed on the whole shell through the cold plate of the battery pack, which is equivalent to heat dissipation performed on the electronic component assembly through the heat dissipation part of the connecting copper bar; and the heat dissipation efficiency is improved, so that the heat dissipation performance of the battery energy distribution unit and the battery management system can be improved.

The invention belongs to the technical field of polymer lithium ion battery negative electrode materials, and is suitable for high-energy-density lithium ion batteries. Aiming at the problems that irreversible lithium loss exists due to the formation of an SEI film when a graphite negative electrode is charged and discharged for the first time, and a traditional lithium supplementing process is complicated and high in cost, the invention provides a graphite negative electrode material containing a lithium supplementing agent and a preparation method and application thereof. The material is composed of 85%-95% of spherical artificial single-particle graphite, 0.1%-80% of a Li5FeO4 lithium supplement agent, 0%-5% of an auxiliary material additive and 25% of deionized water. The preparation method comprises the following steps: preparing materials (after dry powder is mixed, adding water and NMP to regulate the viscosity in batches, adding SBR and stirring), coating, rolling and slitting. According to the scheme, lithium loss can be compensated for, the first effect is improved, the process is simplified and compatible with an existing production line, the material volume density and rate performance can be improved, the battery cycle life can be prolonged, and the total battery energy volume density is improved.

The application discloses a carbon nitride / carbon felt electrode for a vanadium redox flow battery and a preparation method thereof, and belongs to the technical field of battery materials. The preparation method comprises the following steps: (1) soaking carbon felt in an ethanol solution containing an iron salt compound and then drying; (2) suspending the dried carbon felt in a closed container, adding a pyrrole monomer, and reacting at a constant temperature under an inert atmosphere to obtain a polypyrrole / carbon felt, which is cleaned and dried; (3) soaking the polypyrrole / carbon felt in an ethanol solution containing a zinc salt compound and then drying; (4) gradually increasing the temperature of the dried polypyrrole / carbon felt under an inert atmosphere to perform high-temperature carbonization, and obtaining carbon nitride / carbon felt; and (5) performing pickling and water washing on the carbon nitride / carbon felt, and obtaining the carbon nitride / carbon felt electrode after drying. In the application, the iron salt is used to catalyze the polymerization and deposition of pyrrole on the surface of the carbon felt, and finally high-temperature carbonization is performed to form various nitrogen-doped structures on the surface of the carbon felt, so that the liquid affinity and the electrochemical reaction activity of the electrode surface are significantly improved, and the energy efficiency of the battery is improved.

The invention discloses a gradient triggering method for preventing battery short circuit, which comprises the following steps: S1, uniformly mixing early-warning thermal expansion microspheres, open-circuit thermal expansion microspheres and conductive carbon black, adding a water-based adhesive, and fully dispersing to obtain a turbid liquid; s2, coating a current collector with the turbid liquid obtained in the step S1, and then carrying out drying treatment; wherein the expansion temperature of the early-warning thermal expansion microspheres is 85-95 DEG C, the expansion multiple is 10-15, and the early-warning thermal expansion microspheres are used for increasing the internal resistance of the battery during expansion so as to carry out early warning; the expansion temperature of the open-circuit thermal expansion microspheres is 130-140 DEG C, the expansion multiple is 50-100 times, and the open-circuit thermal expansion microspheres are used for disconnecting direct contact between the positive electrode current collector and the negative electrode during expansion and cutting off electron transmission so as to avoid internal short circuit thermal runaway. The anode current collector prepared on the basis of the gradient trigger safety response mechanism for preventing the internal short circuit of the lithium battery has the characteristic that a micron-sized protective layer is in contact with a cathode when the internal short circuit occurs, so that the defects of other methods such as expensive equipment, complex working procedures and reduction of the energy density of the battery are overcome.

The invention belongs to the technical field of composite material manufacturing, and discloses a structural battery integrated composite board and a forming method and application thereof. According to the composite board, carbon fiber reinforced materials are adopted as positive and negative electrodes, glass fiber materials are adopted as a diaphragm and an insulating layer, epoxy resin-based solid-state structure electrolyte is adopted as a bonding packaging medium, and a curing agent, ionic liquid, electrolyte lithium salt, nano ceramic particles and other auxiliaries of specific types and proportions are introduced into epoxy resin; the multifunctional modification of the resin matrix is realized. And meanwhile, doping and surface grafting modification are performed on the electrode material, so that the energy density and the mechanical strength of the battery are improved. And further constructing a low-temperature formed metal or carbon-based circuit layer on the outer surface of the structural battery to form an integrated complex comprising the circuit board, the structural battery and the bearing structure. The composite board satisfies dielectric insulation and reliability, realizes integrated energy supply and signal processing, and is widely applied to weight and volume sensitive fields such as aerospace and new energy automobiles.

The invention relates to the technical field of flexible direct current power transmission, in particular to a reconfigurable bipolar switchable energy storage system and a control method thereof, and the system comprises an energy storage unit which comprises a battery; the input end of the energy conversion unit is connected to the energy storage unit, and the energy conversion unit is used for converting the stored energy into bidirectional direct-current electric energy; the input end of the polarity switching unit is connected to the output end of the energy conversion unit, and the polarity switching unit is used for switching the voltage polarity of the output port; and the control unit is used for respectively sending driving signals to the energy conversion unit and the polarity switching unit. According to the invention, the problem that the switching between the positive voltage output and the negative voltage output is completed according to the surplus or vacancy condition of the direct current side power in the large-scale renewable energy access power grid is effectively solved, and the rapid charging and discharging control of the energy storage system is realized, so that the direct current side power fluctuation is effectively stabilized, and the stability of the voltages at the two ends of the MMC is rapidly maintained.

The low-inertia small robot leg structure comprises a first connecting piece, a second connecting piece and a shank, the first connecting piece is provided with a first joint motor, the first joint motor is connected with the second connecting piece, and the axis of the first joint motor is perpendicular to the axis of the second connecting piece; a second joint motor is arranged on the second connecting piece, and a thigh clamping plate is connected to the second joint motor; a third joint motor is arranged between the thigh clamping plates, the shanks are rotationally arranged between the bottoms of the thigh outer clamping plates and the thigh inner clamping plates to form knee joints, and connecting rods are rotationally connected between the positions, lower than the knee joints, of the shanks and the third joint motor. According to the leg compact structure design suitable for the small robot, the number of transmission mechanisms at the knee joints is reduced, the rotational inertia of the legs of the robot is reduced, the energy consumption intensity is reduced under the condition that the battery energy of the small robot is low, and the standby time of the small robot is prolonged.

The invention relates to a solid electrolyte membrane and a preparation method thereof, and belongs to the technical field of lithium battery solid electrolyte. According to the invention, after the selected acrylate monomer as shown in the formula I is polymerized, the crystallinity of the fluorine-containing polymer is reduced, more space is provided for ion conduction, the dissociation effect of the lithium salt is enhanced, and the free ion concentration is increased; the precipitation-method white carbon black limits anion movement through abundant hydroxyl groups, so that the lithium ion transference number is increased; under the combined action of the three factors, the ionic conductivity of the solid electrolyte membrane is greatly improved. The fluorine-containing polymer has good toughness and self-supporting effect and wide electrochemical window and thermal stability, so that the application range of the solid electrolyte and the energy density, rate capability and service life of a battery using the electrolyte are improved on the whole.

The invention discloses a composite pole piece as well as a preparation method and application thereof, and belongs to the technical field of battery materials. The composite pole piece comprises a current collector, an active material layer is arranged on the surface of the current collector, and a low-voltage platform active area and a high-voltage platform active area are arranged in the active material layer at the same time; a micro-crystal lattice formed by a functional additive is arranged between the low-voltage platform active region and the current collector; the functional additive comprises an electric polymer. The low-voltage platform active area and the high-voltage platform active area are arranged on the same current collector, so that the advantages of different active materials can be concentrated on the same pole piece, and the performance advantages of the active materials can be fully exerted; when the battery is in an overcharge environment, the micro-crystal dot matrix arranged in the composite pole piece can directly absorb, consume and convert overcharge current on the current collector, and quickly responds to and participates in overcharge protection of the material. The battery with the composite pole piece can have relatively high battery energy density and rate capability, relatively long cycle life and relatively good safety.

The invention provides a thermal management control method, device and equipment for a lithium battery and a storage medium, and the method comprises the steps: detecting the state parameters of a lithium battery pack, obtaining the working state information and driving demand information of the battery, and calculating the current available energy to obtain the energy state data of the battery; calculating required driving energy according to the driving demand information, and comparing and analyzing the required driving energy with battery energy state data to obtain a heating demand judgment result; and setting an optimal heating parameter according to a judgment result, and carrying out collaborative thermal management control. By intelligently analyzing the matching relationship between the battery energy state and the driving demand, the on-demand heating control is realized, the problem of energy waste of a traditional fixed threshold heating strategy is avoided, the energy utilization efficiency of the lithium battery in a low-temperature environment is remarkably improved, and the endurance mileage of the electric vehicle is prolonged.

The invention relates to a lightweight battery residual life prediction method and system based on step-by-step knowledge distillation, and belongs to the field of battery energy technologies. According to the method, a teacher model for local-global degradation feature reconstruction and a student model carrying working condition information monitoring are constructed, a two-stage parameter freezing distillation strategy is adopted, potential features and reconstruction features are aligned firstly, and then a soft and hard loss optimization prediction module is fused, so that high-precision and lightweight prediction of the residual life of the battery is realized; and the adaptability and the calculation efficiency under different working conditions are effectively improved.

The invention discloses a photo-thermal coupling self-powered tracking driving system, relates to the technical field of photovoltaic power generation, and solves the problems of energy consumption waste and use limitation in the prior art. The thermoelectric conversion module generates power by utilizing the temperature difference between waste heat generated by the photovoltaic panel in an illumination working state and the environment, the photovoltaic panel and the thermoelectric conversion module are electrically connected with the hybrid energy storage unit, and the hybrid energy storage unit comprises a capacitor and a rechargeable battery which are connected in parallel; the energy management controller is electrically connected with the photovoltaic panel, the thermoelectric conversion module and the hybrid energy storage unit and used for collecting the environment illumination intensity, the electric quantity state of the battery and the terminal voltage of the capacitor and generating a control instruction based on collected signals, and the driving mechanism is connected with the energy management controller and used for driving the hybrid energy storage unit to work. And driving the photovoltaic panel to adjust the azimuth angle and / or the elevation angle in response to the control instruction so as to perform sun tracking motion. The use adaptability is improved, and energy waste is reduced.

The invention is suitable for the technical field of sodium ion batteries, and provides a digital twinning-based intelligent operation and maintenance method for a sodium ion battery energy management system, and the method comprises the steps: constructing and operating a virtual model corresponding to a sodium ion battery system in a cloud digital twinning platform based on collected multi-source heterogeneous operation data; the virtual model simulates the internal state and evolution trend of the sodium ion battery system by coupling the electrochemical model, the thermal model and the life model; tracking and predicting the state of charge and the state of health of the sodium ion battery system, generating a charging and discharging power instruction and a thermal management strategy through a dynamic optimization control algorithm, and issuing and executing the instruction; and performing anomaly detection by applying an unsupervised learning algorithm, and generating predictive maintenance suggestions in combination with the prediction result of the health state. By constructing digital twinborn body and multi-model coupling, multi-dimensional accurate perception and multi-target dynamic optimization of the sodium ion battery system are realized, and the full life cycle value and safety level of the energy storage system are improved.

The invention relates to the field of grids, in particular to a grid assembly utilizing wind energy and a using method thereof.The grid assembly comprises a grid frame, and an assembling inner groove is formed in the grid frame; an electric power assembly is arranged in the assembling inner groove; the electric power assembly comprises a blade unit and an electric power unit; each blade unit comprises a rotating blade which is connected with a rotating shaft; the rotating shaft is connected to the grating frame; the rotating shaft is connected with an electric power unit; the electric power unit can be used for generating electricity or driving the rotating blades to rotate; according to the grille assembly, traditional wind resistance can be converted into electric energy, the grille assembly is used on a vehicle with the same endurance, more converted electric energy can be supplied to automobile electric appliances, recycled wind energy is converted into electric energy, carrying of battery energy can be reduced, then the weight and cost of a battery are reduced, and chemical substances in battery development and recycling are reduced.

The invention is suitable for the technical field of energy management of new energy automobile power systems, and provides an intelligent energy consumption optimization method and system for a new energy automobile power system.The method comprises the steps that needed pre-cooling energy is calculated based on the pre-cooling power adjustment amount, and when a target vehicle starts to decelerate and enters a shielded vehicle following working condition, the pre-cooling energy is calculated according to the pre-cooling power adjustment amount; and the part, used for meeting the precooling energy, in the brake recovery energy generated in the process is directly distributed to a compressor through a direct-current bus, so that the precooling power adjustment amount is achieved. Active optimization of the energy flow of the power system is achieved, the energy utilization efficiency of the whole vehicle is effectively improved, the battery energy consumption is reduced, the cruising ability is prolonged, and meanwhile the stability and reliability of the power system under the cold chain transportation working condition are improved.

The utility model provides a battery pack which comprises a battery box body and at least one battery cell module, a bottom plate and a frame of the battery box body are integrally formed and define a cavity structure, and a liquid cooling flow channel is integrated on the bottom plate of the battery box body; the inner surface of the bottom plate of the battery box body is coated with a heat-conducting structural adhesive; and the bottom of the battery cell module is fixed on the bottom plate of the battery box body through a heat-conducting structural adhesive. The battery box body is integrally formed by the bottom plate and the frame, a reinforcing structure does not need to be independently designed to reinforce the strength and the rigidity of the box body, the liquid cooling plate is integrated on the bottom plate, the liquid cooling plate does not need to be additionally arranged, and the battery cell module does not need to be fixed with the liquid cooling plate and then secondarily fixed with the box body; and the battery cell module and the bottom plate are fixed and heat-conducted by using the heat-conducting structural adhesive, so that the space utilization rate of the battery pack is improved, the energy density of the battery is increased, the weight of the battery pack is reduced, the production procedures are reduced, and the cost is reduced.

The invention relates to a cooling loop temperature control sequence determination method and device, equipment and a medium, and the method comprises the steps: obtaining a plurality of target temperature sequences of a battery cooling furnace, and the preset energy consumption and / or charging duration of a battery corresponding to each target temperature sequence, and obtaining the preset energy consumption and / or charging duration of the battery corresponding to each target temperature sequence based on the preset energy consumption and / or charging duration of the battery corresponding to each target temperature sequence; the target temperature sequence with the optimal preset energy consumption and / or charging duration of the battery is determined as the temperature control sequence of the battery cooling loop, and the temperature of the battery cooling loop and the temperature of the battery are controlled through the temperature control sequence, so that the temperature when the battery reaches the charging position is optimal. The charging time after the vehicle arrives at the charging station is shortened and / or the preheating energy consumption of the battery is reduced, and the charging experience is improved.