55 results about "Internal cell" patented technology

The invention belongs to the technical field of battery distribution management, and provides an intelligent energy distribution system and method for a multi-battery module, and the method comprises the steps: constructing a battery cell network topological graph according to the internal battery cells of a battery pack and the connection relation between the battery cells; according to the cell network topological graph, real-time voltage, current and temperature signals of part of cells in each battery module are obtained, and part of sampling observation data is formed; on the basis of a graph signal processing method, mapping part of sampling observation data into graph signals, estimating the state of an unsampled battery cell by adopting a graph Laplacian regularization method, detecting abnormal nodes in a graph on the basis of a state estimation value of the battery cell, and correspondingly identifying an abnormal battery cell; constructing an energy distribution model according to the state estimation value data of each battery cell, which is estimated by graph signal processing; risks caused by reduction of sampling wire harnesses and reduction of monitoring precision under a CTP architecture are effectively relieved, the cell state estimation precision and the energy distribution stability are improved, and the overall safe life of the battery pack is prolonged.

A battery module (20) comprises a battery module housing (22), a plurality of battery cells (30), and a coolant (50), wherein the battery cells (30) and the coolant (50) are provided in the battery module housing (22), the coolant (50) being provided on the outside of the battery cells (30) to enable heat conduction, the battery cells (30) comprising a cell housing (32) with a safety valve (34), the safety valve (34) being configured to open when the internal cell pressure within the cell housing (32) rises above a predetermined first threshold value, thus enabling the outflow of a medium from the cell housing (32), the safety valves (34) being directed towards first regions (21) of the battery module housing (22), the battery module housing (22) having at least one opening (24) outside the first regions (21) which is closed by a rupture disc (26).

A vehicle panel includes two sidewalls and a resonator disposed between them on one of the cell walls. The resonator includes a network of cells, each cell defines an internal space to absorb and dissipate noise and vibrations within a specific frequency range. Certain cells or subsets of cells may be interconnected to define a larger internal cell space. An airgap between the resonator and one of the sidewalls may be partially or completely filled with dampening material to absorb high frequency noise. The dampening material may also provide thermal insulation.

1. The name of the design product: busbar. 2. The use of the design product: for the current transmission, structural fixation, safety protection and heat dissipation management of the internal cell of the square battery. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application provides a three-dimensional gradient negative Poisson's ratio honeycomb skeleton structure and a preparation method and application thereof, and relates to the technical field of mechanical metamaterials; the external configuration of the three-dimensional gradient negative Poisson's ratio honeycomb skeleton structure is a circular truncated cone tube structure; the circular truncated cone tube structure comprises a plurality of curved surface concave hexagonal cells arranged around a central axis of the circular truncated cone tube structure and in a gradient along the circular truncated cone generatrix direction; the structure gradient can be first realized by relying on inherent characteristics of the inclined wall surface of the circular truncated cone tube structure, and further controlled by adjusting internal cell parameters; and the skeleton structure can be prepared by a 3D printing process. The three-dimensional gradient negative Poisson's ratio honeycomb skeleton structure has the characteristics of light self-weight, linear deformability, synergistic effects of structure gradient effects and negative Poisson's ratio effects, and deformation characteristics of flexible linear expansion under external load, and can be used in the fields of protective engineering, artificial intelligence, wearable devices, medical devices, artificial prostheses and the like.

The application relates to a battery cell cover plate, a battery and an electric device, and belongs to the technical field of batteries. The application optimizes current distribution by differentiating the structures and positions of two pole columns. Two mounting holes are formed in a cover plate body and penetrate through a first pole column and a second pole column; the first pole column away from a center axis of the cover plate adopts a small-section column body, and the second pole column close to or coinciding with the center axis adopts a large-section column body; and the two pole columns are fixedly connected at the bottom of the cover plate through a connecting block. The application combines the current distribution characteristics of the battery internal cell pole group, cooperates the large-section column body with the small-section column body, makes the current distribution uniform, balances the pole column temperature rise, solves the local overheating problem caused by uneven current distribution of the traditional symmetrical pole column, and significantly improves the battery safety and service life.

The invention discloses an air control pressurization type cell culture instrument in the technical field of cell culture instruments. The air control pressurization type cell culture instrument comprises a culture cabin, a cabin cover and a pressure detection unit, the cabin cover is provided with a dynamic pressure simulation module which is used for generating periodic dynamic pressure for simulating the respiratory rhythm of a human body in the culture cabin; in the process of culturing the cells in the human body, the driving mechanism is used for driving the moving plate, the elastic element and the piston to reciprocate, the pressure in the culture cabin fluctuates within a certain range, and the periodic change of the in-vivo pressure intensity when the human body breathes is simulated, so that the cells grow in a state closer to the in-vivo state; a more reliable in-vitro cell model is provided for subsequent research for revealing physiological and pathological mechanisms of a human body; and in the culture process, the detection mechanism and the compensation mechanism are used for supplementing or discharging gas into the culture cabin, so that the air pressure change caused by cell respiration in the culture cabin can be automatically adjusted.

The invention relates to the technical field of fuel cells, and discloses a fuel cell system cluster collaborative operation optimization method and device, and the method comprises the steps: taking the highest overall efficiency of a fuel cell system cluster as a target function, constructing a power adaptive distribution model between fuel cell systems, determining the power distribution of each fuel cell system in the cluster; according to the power distribution value of each fuel cell system and the current minimum output electric power and the current maximum output electric power of each fuel cell system, respectively determining a start / stop strategy of an internal cell stack of each fuel cell system; respectively calculating the working attenuation coefficient of each cell stack so as to determine the start / stop sequence of each cell stack in each fuel cell system; and in combination with the start / stop strategy and the start / stop sequence, respectively adjusting the operation output power of each cell stack in each corresponding fuel cell system so as to meet the target power required to be output by the corresponding fuel cell system. According to the invention, the optimal cluster operation efficiency can be realized.

The invention discloses a closed-cell foam material for backpack equipment, the closed-cell foam material is composed of matrix resin and an elastomer component, the matrix resin is an ethylene-vinyl acetate copolymer in which the content of a vinyl acetate structural unit is 5%-15%; the closed-cell foaming material has the overall density of 0.05-0.08 g / cm < 3 >, and the average diameter of internal cells is not larger than 200 microns; the closed cell foam material exhibits a compression set rate of less than 5%. According to the closed-cell foaming material for the backpack equipment provided by the invention, light weight, high resilience and deformation resistance are realized through collaborative design of materials and a process.

Systems and methods are disclosed herein for determining the remaining useful life of a battery cell that includes the battery cell's internal resistance and / or shock loading. In one example implementation, the systems and methods disclosed herein monitor acceleration information over time based on information received from an accelerometer integrated in a battery cell and electrical information for at least one electrical parameter of the battery cell over time. The information is stored for determining remaining useful life. In another example implementation, the systems and methods disclosed herein determine a voltage drop across the battery cell and a current output of the battery cell. The systems and methods determine an internal cell resistance of the battery cell based on charge or discharge voltage and current information.

This utility model belongs to the technical field of cell wall breaking devices, and in particular, it is a cell wall breaking device for the production of traditional Chinese medicine decoction pieces. It includes an outer shell with an internal cell wall breaking chamber, a base located at the bottom of the outer shell and housing a motor, and blades installed inside the cell wall breaking chamber. The heat dissipation assembly includes a cooling chamber located below the motor, a receiving space inside the cell wall breaking chamber, a circulating pump located on top of a partition and connected at one end to a cooling pipe, an inlet pipe located at the other end of the circulating pump, and an outlet pipe located at the end of the cooling pipe away from the circulating pump. This device can simultaneously remove heat generated by the motor and the cell wall breaking chamber during the cell wall breaking process of the traditional Chinese medicine decoction pieces. This not only ensures stable heat dissipation of the motor during long-term operation, preventing damage or performance degradation due to overheating, but also absorbs the heat generated by the traditional Chinese medicine decoction pieces during the cell wall breaking process, avoiding the charring problem caused by heat accumulation in the decoction pieces, thus improving the quality of the traditional Chinese medicine decoction pieces.

The invention relates to the technical field of fluorine-containing elastomers, in particular to a foamed fluorine-containing elastomer composition and a preparation method and application thereof, and the foamed fluorine-containing elastomer composition is prepared from the following raw materials: a fluorine-containing elastomer, an inorganic filler, a vulcanizing agent and a foaming agent; the fluorine-containing elastomer is a fluorine-containing polymer of which the fluorine content is greater than or equal to 50wt%. The composition prepared by the preparation method disclosed by the invention is not carbonized or blackened at 230-300 DEG C for 10-20 hours, realizes uniform distribution of cell diameters of 200-350 microns, is less than 1.0 g / cm < 3 > in density, realizes surface crust and internal cell uniformity control, and can be applied to high-temperature use scenes such as flexible heaters and the like.

The utility model discloses a magnetic cell sorting device which comprises a coil lifting mechanism, an electrified coil is clamped on the left side wall of the coil lifting mechanism, and the coil lifting mechanism comprises a stand column, a top plate fixedly connected to the top of the left side of the stand column and an electric telescopic rod fixed to the upper surface of the top plate. A telescopic shaft penetrating through the top plate is connected to a telescopic shaft of the electric telescopic rod, a movable block is fixedly connected to the bottom end of the telescopic shaft, and two servo electric cylinders are fixed to the left side of the movable block. According to the scheme, the electrified coil and the magnetic ring are arranged on the periphery of the separation column, the coil and the magnetic ring are used for manufacturing a magnetic field on the periphery of the separation column to attract nanometer magnetic beads in the separation column to move, the coil lifting mechanism is matched to pull the coil and the magnetic ring to reciprocate up and down, and then magnetic force drives the nanometer magnetic beads to move up and down in the separation column; therefore, the combination with cells in the sorting column is accelerated, and the cell sorting speed is increased.

This utility model discloses a battery pack cell module, relating to the field of battery pack manufacturing technology. It includes at least two sets of cell units. A T-shaped beam is provided at the top of the connection between the cell units, with the vertical beam of the T-shaped beam inserted downwards into the connection between the cell units. An insulating extruded T-shaped beam, conforming to the outer surface of the T-shaped beam and integrally formed, is provided between the cell unit and the T-shaped beam. A Z-shaped beam is provided at the bottom of the connection between the cell units, with the protrusion of the Z-shaped beam inserted upwards into the connection between the cell units. An insulating extruded Z-shaped beam, conforming to the outer surface of the Z-shaped beam and integrally formed, is provided between the cell unit and the Z-shaped beam. This utility model provides good insulation between the internal cell and the metal beam structure, effectively improving the safety and reliability of the battery pack cell module while increasing production efficiency.

The utility model discloses a plate structure, a battery device and a power utilization device, the plate structure comprises a first layer plate, a second layer plate and a third layer plate which are sequentially stacked along a first direction, and the second layer plate is a nylon particle foam plate. According to the plate structure, the nylon particle foam plate is clamped between the two layers of plates, the first layer of plate can disperse impact force, so that the foam plate is evenly stressed, the energy absorption characteristic is fully played, local failure is avoided, the internal foam structure of the nylon particle foam plate can effectively cope with impact, and the nylon particle foam plate is excellent in mechanical property, high in strength and high in toughness; when the foam board is impacted, energy is absorbed through foam hole deformation and nylon particle effect, the structure is kept stable, the third layer board provides supporting and restraining, excessive deformation of the foam board is prevented, and the integrity of the whole structure is guaranteed. The characteristics of the three layers of materials are complementary, an energy transfer path is optimized, the compression deformation capacity and the impact resistance capacity of the whole plate structure are greatly improved, structural safety and stability can be effectively guaranteed, the service life is prolonged, and the maintenance cost is reduced.

The utility model provides a tissue grinding tube capable of quickly purifying RNA (Ribonucleic Acid), which relates to the technical field of RNA extraction, and comprises a grinding tube body, an auxiliary grinding piece and a plurality of grinding raised lines, two ends of the grinding tube body are concave inwards to form a grinding cavity, the plurality of grinding raised lines are fixed on the inner wall of the grinding cavity in an annular array, the auxiliary grinding piece is connected with the inner wall of a sealing cover, and the sealing cover is connected with the grinding cavity. When the grinding pipe body is placed in a grinding instrument for use, the auxiliary grinding piece is used for crushing a tissue sample in a grinding cavity during grinding; according to the utility model, during grinding, the movable rod provided with the crushing cutter rotates in an uncertain direction, the crushing cutter can continuously impact a tissue sample with different forces, and by virtue of the high-frequency cutting and crushing actions of the crushing cutter in different directions, the deep disintegration can be carried out on tough fiber tissues, high-toughness meat structures and the like; the internal cell structure and fiber framework are fully destroyed, so that the crushing effect is better realized, and the grinding process is greatly accelerated.

To provide an air bed which does not require a large storage space, can be made usable with a simple operation, and can provide high-quality sleep. [Solution] The device comprises an internal cell mat in which multiple rod-shaped cells made of soft film are connected horizontally with welded bars sandwiched between them, and an outer bag made of a breathable, low-elasticity material into which the internal cell mat is placed. The rod-shaped cells at both ends of the internal cell mat are larger in diameter than the rod-shaped cells between them, and the welded bars have non-welded sections in some parts so that the rod-shaped cells are connected to each other via the non-welded sections. When the internal cell mat is inflated with air and is not under load, the large-diameter rod-shaped cells at both ends come into contact with the use side and anti-use side of the outer bag, and the small-diameter rod-shaped cells between the large-diameter rod-shaped cells are not in contact with at least one of the use side or anti-use side of the outer bag, and the outer bag is in an expanded state in this state.

A computer-implemented method for evaluating power consumption of an electronic circuit design including at least one logic gate is disclosed. The method includes receiving one or more data files describing an electronic circuit design, describing waveform data describing signal activity describing a logic gate used in the electronic circuit design, and describing power consumption values of internal cells of the logic gate of the electronic circuit design (701). Waveform data is extracted from one or more data files describing signal activity at a main input of the electronic circuit design and describing outputs of registers and memories of the electronic circuit design (702). Simulation of the logic gate is performed using the extracted waveform data to generate analog waveform data describing analog logic transitions of the internal cells of the logic gate (703), and event-based evaluation of power consumption of the electronic circuit design is performed based on the extracted waveform data, the analog waveform data, and the power consumption value (704).

This technology provides a way to suppress the deterioration of sealing performance. [Solution] The fuel cell cell comprises an anode separator and a cathode separator having a coating on their surface, and each of the anode separator and cathode separator comprises a main body, a coolant manifold which is an opening formed in the main body and through which coolant flows, an internal cell seal portion which seals the space between the anode separator and the cathode separator inside the fuel cell by the main body being bonded to an insulating sheet so as to surround the coolant manifold, and a sacrificial galvanic corrosion portion which is disposed between the coolant manifold and the internal cell seal portion and has a plurality of exposed portions in which the substrate is exposed without being covered by a coating, and the sacrificial galvanic corrosion portion has at least one exposed portion on a straight line connecting the coolant manifold and the internal cell seal portion.

Systems and methods are disclosed herein for determining the remaining useful life of a battery cell that includes the battery cell's internal resistance and / or shock loading. In one example implementation, the systems and methods disclosed herein monitor acceleration information over time based on information received from an accelerometer integrated in a battery cell and electrical information for at least one electrical parameter of the battery cell over time. The information is stored for determining remaining useful life. In another example implementation, the systems and methods disclosed herein determine a voltage drop across the battery cell and a current output of the battery cell. The systems and methods determine an internal cell resistance of the battery cell based on charge or discharge voltage and current information.

An anti-tampering arrangement for a computing device including an intrusion detector configured to detect an infiltration of a printed circuit board of the computing device, a sensors layer including at least one sensor selected from the group consisting of a heat sensor configured to detect temperature changes indicative of tampering operations, a vibration sensor configured to detect vibrations associated with tampering operations, a light sensor configured to detect lighting variations indicative of tampering attempts, an internal cell sensor configured to detect tampering of a designated high security region of the computing device containing at least one highly sensitive component, and a device access sensor configured to detect unauthorized opening of a housing of the computing device, and a processor configured to monitor the intrusion detector and the sensors layer, and to trigger a security response upon detection of a tampering attempt.

The invention provides a construction method of an embryo-like model, which comprises the following steps: culturing primitive state stem cells in vitro or injecting the primitive state stem cells into an immunodeficient animal body for differentiation to obtain the embryo-like model. According to the method, in the process of preparing the embryo-like model, cell factors and small molecular pathway interference factors do not need to be added, gene editing is not needed, only a single starting cell type is adopted, and the method has the advantages of being simple and high in repeatability, facilitates large-scale preparation and application, and has wide application prospects. And the prepared embryo-like model has all embryo external cell lineages and all embryo internal cell lineages except for trophoderm, and can simulate the development process from an implanted embryo of a Carbonate-resistant group 3 stage to a Carbonate-resistant group 9 stage nerve embryo, so that the embryo-like model can be used for preparing various progenitor cell lineages, modeling diseases, screening drugs and carrying out scientific research.

The invention relates to a method for determining the health status of a battery cell (C) by analyzing the time evolution of an internal cell resistance. The method includes a control procedure comprising the following steps: obtaining a measurement of the open-circuit voltage (VOC) of the cell; controlling a cell balancing circuit such that a balancing resistor (VB) is placed in parallel with the cell and obtaining a measurement of a balanced voltage (VB) of the cell corresponding to a constant voltage across the cell terminals with the balancing resistor placed in parallel with the cell; and determining the internal cell resistance from the open-circuit voltage and the balanced voltage. Figure 4 is shown in the abstract.

The application discloses a kind of three-dimensional woven composite macro-mesoscopic mechanical property parameter prediction method, based on the internal real weaving structure of three-dimensional four-way woven composite material, the whole material is divided into surface area and internal area, and the periodic cell finite element model of two kinds of areas is respectively established, the nonlinear mechanical behavior characteristics of matrix material and yarn material are considered to carry out the explicit dynamics calculation of cell under different strain rates, to predict the mechanical property parameters of different regions of composite material under different strain rates, the strain rate strengthening parameter is obtained by curve fitting the mechanical property parameters under each strain rate.The mechanical property parameters of surface cell and internal cell area calculated by mesoscopic scale are respectively substituted into the surface cell area and internal cell area of macroscopic finite element model, so that high strain rate condition calculation such as ballistic impact, bird impact, ice impact and other impact dynamics related can be carried out.

The present invention relates to a method for electrically connecting battery cells (10, 20) of a battery module. The invention further relates to a battery module and a production system. The method comprises the following steps: - Using multiple battery cells (10, 20), wherein each battery cell (10, 20) has a known cell-individual internal cell resistance, - Establishing an electrical connection between the respective battery cell (10; 20) and an electrically conductive cell connector (30) of the battery module assigned to this battery cell (10; 20), wherein the electrical connection is established by means of a welding process forming a cell-specific weld seam (41, 42) such that a contact resistance caused by the respective weld seam (41; 42) is adapted depending on the cell-specific internal cell resistance of the battery cell (10, 20) in order to at least partially compensate for differences between the cell-specific internal cell resistances of the several battery cells (10, 20).

A double-confinement heated sample holder and a method for analyzing a sample using said sample holder. The invention relates to a sample holder (1) for analysis by X-ray scattering and / or X-ray spectroscopy, comprising: - an internal cell (3) including a cavity, configured to hermetically contain a sample to be analyzed, and windows opposite each other on either side of the cavity, each window being closed by a pane of glass transparent at least to X-rays; - a housing including at least one compartment, referred to as the first compartment (7), configured to hermetically contain the internal cell, and windows opposite each other on either side of the first compartment, each window being closed by a sheet transparent at least to X-rays; - at least one heating element (5) inserted in the housing so as to heat the cavity of the internal cell. Figure for the abstract: Fig. 3

This invention relates to the field of acoustic imaging technology, specifically to a phase holographic imaging device based on acoustic metamaterials, comprising a sound wave generator, a LAM metasurface, and a control unit. The sound wave generator generates planar sound waves; the LAM metasurface receives the sound waves and modulates their phase and amplitude; the control unit controls the structure and geometry of the internal cells of the LAM metasurface, ensuring that under frontal sound illumination, the sound waves reach a decoupling point within the internal structural space of the LAM metasurface; achieving decoupling modulation of the phase and amplitude of the reflected sound waves from the surface by the cells; and includes a processor that calculates the sound pressure at the phase position projected onto the holographic surface based on the input image, and adjusts the dimensional parameters of the internal cells of the LAM metasurface via the controller. In this invention, after the incident sound wave interacts with the LAM metasurface, it undergoes demodulation and remodulation, and is reflected at an angle perpendicular to the LAM subsurface. The LAM metasurface does not impose any angular constraints on the incident sound wave; the angle of the reflected wave is always perpendicular to the LAM surface. This results in a phase acoustic hologram imaging quality that meets the required amplitude compensation.

The invention relates to the field of detection equipment, in particular to a cell product quality analyzer. Comprising a shell, a control module, a cell test module, a lock-in amplifier and a display, and the control module is arranged in the shell; the control module is arranged in the shell, the cell testing module is arranged in the shell, the lock-in amplifier is arranged in the shell, the lock-in amplifier is electrically connected with the control module and the cell testing module, and the lock-in amplifier is used for extracting an impedance signal directly related to cell attributes from an electric signal output by the cell testing module; and then the extracted impedance signal is sent to the control module for processing. The micro-fluidic chip and the high-sensitivity lock-in amplifier are combined, a single cell is analyzed, a weak impedance change signal directly related to cell quality attributes is accurately extracted from a complex electric signal, and then the quality of the cell is detected based on a single type of detection signal. And synchronous detection of key quality attributes such as cell particle size, motility rate, apoptosis and heterogeneity is realized at the single cell level.

The utility model relates to a fixing device for a battery cell group in a battery, and belongs to the technical field of batteries. The battery fixing device comprises a bottom plate, a first baffle and a second baffle, the bottom plate is used for supporting the whole battery, and the first baffle and the second baffle are both of an inverted L-shaped structure and are fixed to the bottom plate to form an enclosure frame structure to fix a battery cell set; meanwhile, the connecting piece is additionally arranged at the contact position of the first baffle and the second baffle, the two baffles are relatively fixed to form the enclosure frame by matching the connecting bolt with the connecting piece, and the structural stability is enhanced. In addition, the first baffle and the second baffle are each provided with at least one bottom plate fixing hole used for fixing the baffles, so that the baffles are fixed relative to the bottom plate. According to the utility model, the production cost is reduced, the cell mounting and dismounting process is convenient, no complex tool is needed, the structure is stable, the cell is not easy to loosen after long-term use, and the performance and safety of the battery are effectively guaranteed.

A vacuum-insulated structure can have one or more internal cells, one or more foam cores, and an enveloping structure. Each foam core can be formed from a plant material. Each foam core can be disposed within a respective one of the cells. The enveloping structure can seal each foam core within the respective cell at a pressure less than atmospheric pressure.