72 results about "Flexible battery" patented technology

Flexible electronic devices may be provided. A flexible electronic device may include a flexible display, a flexible housing and one or more flexible internal components configured to allow the flexible electronic device to be deformed. Flexible displays may include flexible display layers, flexible touch-sensitive layers, and flexible display cover layers. The flexible housing may be a multi-stable flexible housing having one or more stable positions. The flexible housing may include a configurable support structure that, when engaged, provides a rigid support structure for the flexible housing. The flexible internal components may include flexible batteries, flexible printed circuits or other flexible components. A flexible battery may include flexible and rigid portions or may include a lubricious separator layer that provides flexibility for the flexible battery. A flexible printed circuit may include flexible and rigid portions or openings that allow some rigid portions to flex with respect to other rigid portions.

An electronic device according to an embodiment of the disclosure may include a battery. The battery may include: an electrode assembly including a cathode substrate coupled to a cathode tab, an anode substrate coupled to an anode tab, and a separator sheet disposed between the cathode substrate and the anode substrate, and a pouch accommodating the electrode assembly, wherein the pouch includes a bonding portion provided along an edge of the electrode assembly, a first damage detection circuit configured to detect damage to the battery, and a circuit board to which the cathode tab, the anode tab, and the first damage detection circuit are electrically coupled. The battery may include a first portion, a second portion foldable with respect to the first portion, and a folding portion which couples the first portion and the second portion. The first damage detection circuit may extend from a first point of the circuit board to a single point of the second portion by crossing the first portion and the folding portion along an inside of the bonding portion, and extend from the single point of the second portion to a second point of the circuit board by crossing the folding portion and the first portion along the inside of the bonding portion.

This invention discloses a flexible battery module thermoforming bracket and protection method with adaptive cell expansion, belonging to the field of thermoforming bracket technology. It includes a thermoforming bracket body, cell positioning cavities, an adaptive mechanism, an adjustment mechanism, a detection and movement mechanism, and a buffer mechanism. Sixteen cell positioning cavities are located at the top center of the thermoforming bracket body. The adaptive mechanism uses springs, electrical springs, resistance strain gauges, telescopic rods, and spherical blocks to actively and adaptively buffer cell expansion, preventing permanent failure of the springs and monitoring the expansion force to avoid cracking and deformation of the thermoforming bracket body. The adjustment mechanism dynamically adjusts the internal dimensions of the cell positioning cavities according to the cell expansion state by inflating and deflating the airbags, actively adapting to cell expansion and contraction, preventing cracking and deformation of the thermoforming bracket body, maintaining pre-tight positioning of the cells, preventing short circuits, and improving the structural protection of the thermoforming bracket body.

This invention discloses a colorless polyimide film with high fluorine content, high heat resistance, and low expansion, as well as its preparation method and applications. Specifically, a series of high-fluorine terphenyl dianhydride (structure I) and high-fluorine terphenyl diamine (structure II) are copolymerized (or homopolymerized), cast, and heat-treated to prepare CPI optical film materials with excellent properties. This type of CPI film exhibits excellent optical transparency, high glass transition temperature, high thermal decomposition temperature, low coefficient of thermal expansion, high mechanical properties, and low dielectric loss, making it highly suitable for applications in flexible displays, wearable devices, flexible batteries, and 5G high-frequency communications.

The invention discloses an immersed liquid cooling energy storage unit, and belongs to the technical field of battery thermal management. The unit comprises an energy storage box and at least one battery packaging body arranged in the energy storage box, wherein the battery packaging body comprises a flexible shell, a battery module contained in a sealed containing cavity of the flexible shell and internal immersion liquid for immersing the battery module; a flowing space allowing an external cooling medium to circulate is jointly defined between the flexible shell and the inner wall of the energy storage box, and therefore a double immersion cooling and physical isolation structure of internal immersion liquid, the flexible shell and the external cooling medium is formed. According to the invention, through the design of the modularized flexible battery packaging body, the battery module and the special immersion liquid thereof are independently sealed, so that the risk of cross contamination caused by thermal runaway is fundamentally isolated, and rapid maintenance of the module level is realized; meanwhile, decoupling of internal and external cooling media is achieved through the framework, high-performance insulating liquid can be adopted inside, low-cost cooling media can be adopted outside, and the system economy and the supply chain safety are remarkably improved.

This invention discloses a secondary battery with a transfer electrode and an electrical device thereof. The secondary battery with the transfer electrode includes a positive electrode, a negative electrode body, a negative current collector layer, an extended negative current collector, and an electrolyte. The positive electrode and the negative electrode body are in contact with the electrolyte. The positive electrode, the negative electrode body, and the extended negative current collector are spaced apart. The extended negative current collector is positioned above the positive electrode. The distance between the positive electrode and the negative electrode body is greater than the distance between the positive electrode and the extended negative current collector. The negative electrode body is electrically connected to the negative current collector layer, and the negative current collector layer is used to electrically connect to the extended negative current collector. The secondary battery with the transfer electrode disclosed in this invention can solve the technical problem that existing flexible batteries are prone to forming metal dendrites during charging and discharging, which can cause short circuits and other faults, severely reducing battery life and posing safety hazards.

The invention belongs to the field of synthesis of electrode materials, and particularly relates to a one-dimensional chain polymer with multiple active sites as well as a preparation method and application of the one-dimensional chain polymer. The polymer is prepared by carrying out dehydration condensation reaction on 1, 8, 4, 5-naphthalene tetracarboxylic anhydride and 2-nitro-1, 4-phenylenediamine in an inert atmosphere, and after the reaction is finished, washing with deionized water and carrying out suction filtration to obtain a target product. The molecular structure of the material simultaneously contains multiple oxidation-reduction active centers such as carbonyl and nitryl, so that efficient Zn / collaborative storage can be realized. When being used as a positive electrode of a zinc ion battery, the composite material shows high discharge capacity and long cycle stability, and an assembled flexible battery also has high volume energy density, excellent repeated bending resistance and chemical self-charging capacity in air, and has wide application potential in the field of wearable electronic equipment. The synthesis process is simple, raw materials are easy to obtain, reproducibility is good, and the method is suitable for large-scale production.

This invention relates to the field of perovskite solar cell materials technology, specifically a method for preparing acid-modified SnO2 transport layer perovskite solar cells. The method for preparing the SnO2 transport layer material includes: sequentially subjecting Sn(OH)4 to hydrothermal treatment, washing, drying, and calcination to obtain SnO2 nanoparticles; dispersing the SnO2 nanoparticles in a dispersant, and adjusting the pH of the system to 2-8 with acid to obtain the final product. This invention uses acid to regulate the pH value of SnO2 particles to prepare an electron transport layer material. This material can improve the energy level matching, conductivity, and surface quality of the electron transport layer, thereby enhancing the photoelectric conversion efficiency and stability of perovskite solar cells and meeting the industrial production requirements of large-area and flexible cells.

A battery set comprises a housing, at least one first battery cell, in particular a pouch cell arranged inside the housing, and at least one expansion sensor, wherein an outer shell of the first battery cell comprises an electrically conductive material.The at least one expansion sensor is arranged between the electrically conductive material of the outer casing of the first battery cell and a contact surface adjacent to the first battery cell and comprises at least one flat inductor circuit arranged on a flexible substrate, wherein the at least one flat inductor circuit is arranged in a contact zone between the first battery cell and the contact surface adjacent to the first battery cell, at least one first compressible buffer layer arranged between the flexible substrate with the inductor circuit and the electrically conductive material of the outer casing of the first battery cell, and a detection circuit coupled to the at least one flat inductor circuit by means of respective connecting leads arranged on the flexible substrate in order to detect a change in the inductance of the at least one flat inductor circuit.

This invention relates to a two-stage collaborative scheduling method for forest fire emergency material delivery that considers flexible battery swapping for drones. The method includes constructing an attention-weighted priority evaluation system based on fire point accessibility and urgency; building a truck-drone two-stage collaborative delivery model that combines offline global planning with online dynamic adjustment; designing an attention-weighted ant colony-tabo search hybrid algorithm to solve for the optimal path in the model; establishing an adaptive two-layer emergency allocation and rescue mechanism to dynamically allocate tasks to newly added demand points; using trucks as mobile charging stations for drones to achieve flexible battery swapping for drones and seamless vehicle-drone takeoff and landing coordination; and simultaneously updating vehicle and demand point status in real time through a rolling update mechanism to respond to abnormal situations and continuously execute the scheduling plan until delivery is completed. This invention can adapt to complex forest fire emergency material delivery scenarios with road blockages and dynamically changing demands, effectively reducing operating costs and shortening task completion and material delivery response times.

The utility model belongs to battery pack installation technical field, and disclose a kind of flexible battery pack installation slot of adjustable installation angle, including platform, the bottom right side of the platform is fixedly provided with limit frame, the inside of the platform is equipped with adjusting assembly, the bottom left side of the platform is fixedly provided with fixed block, the inside of the fixed block is rotatably equipped with pivot column, the both sides of the pivot column are fixedly provided with pivot frame, the bottom of the pivot frame is fixedly provided with base, the rear end top of the base is equipped with support assembly, the top of the platform is fixedly provided with workbench, the inside of the workbench is slidably equipped with installation assembly, realize the flexible adjustment of battery pack installation assembly installation angle, solve the problem of existing installation seat angle fixed, ensure that the adjustment process is stable and does not deviate.

The utility model discloses an automatic cutting device for flexible battery diaphragm paper. The automatic cutting device comprises a diaphragm paper driving conveying assembly, a diaphragm paper driven conveying assembly, a laser cutting machine and a laser cutting platform, the diaphragm paper driving conveying assembly and the diaphragm paper driven conveying assembly are used for conveying diaphragm paper; the laser cutting platform is arranged between the diaphragm paper driving conveying assembly and the diaphragm paper driven conveying assembly, and the laser cutting platform is used for bearing diaphragm paper; the laser cutting machine is located above the laser cutting platform and used for cutting the diaphragm paper on the laser cutting platform. According to the automatic cutting device for the flexible battery diaphragm paper, the diaphragm paper can be automatically cut through laser, the production efficiency is high, and the attaching effect is better.

The invention relates to the technical field of solar cells, in particular to a low-warpage flexible thin film solar cell and a preparation method thereof.The solar cell is composed of a supporting substrate, an MXene-PI composite substrate, an epitaxial layer, a P electrode, an N electrode and an antireflection film layer; the MXene-PI composite substrate is a composite substrate formed by covering the front surface of a PI film substrate with an MXene layer. On the basis of the traditional process, a layer of two-dimensional transition metal carbide MXene is deposited on the front surface of the PI film substrate in advance through the spin coating process, so that the thermal expansion coefficient of the composite substrate can be reduced, the mechanical property of the cell can be enhanced, the deformation resistance can be improved, and the problem of overlarge warping of the flexible cell is effectively solved.

The utility model discloses a power battery box cabinet system for a new energy ship in a flexible battery charging and replacing mode. The power battery box cabinet system comprises a lock catch system, a battery cabinet, a rail system, a transfer device, a control system and a container, the battery cabinets are arranged in containers, the containers are fixed through lock catch systems, movable doors are arranged on the side faces of the containers, and rail systems are arranged between the containers. The side wall of the battery cabinet is provided with a charging interface. Compared with the prior art, the rail system is used for transferring the battery cabinet, better stability can be provided, operation is convenient and fast, battery damage is effectively reduced, meanwhile, the battery cabinet is provided with a charging interface, a charging mode or a battery replacing mode can be flexibly selected, and different use requirements are met. Therefore, not only are the operation convenience and stability improved, but also the safety and flexibility of the battery system are remarkably improved.

The invention discloses a wearable plant sensing system and application thereof in plant salt stress monitoring and early warning, and belongs to the technical field of sensor technology and electrochemical analysis. The wearable plant sensing system comprises a flexible sensing module, a reverse ion electroosmosis module, a microfluidic device, a polyvinyl alcohol channel, a flexible battery and a data acquisition and wireless transmission module. The wearable sensor system prepared by the invention has the advantages of flexibility, multiple parameters, remote transmission, good plant surface fitting effect, good detection effect and the like, can realize on-site immediate in-situ detection of K < + >, Na < + > and salicylic acid in living plant tissues, has no influence on plant growth, and has important application prospects in the aspects of plant salt stress monitoring and early warning.

Disclosed is an ultra-thin bioinformation monitoring apparatus, which comprises: a flexible circuit board (1), a biological electrode (2), and a flexible battery (3). The top surface of the flexible circuit board (1) is provided with an electronic element (4), the flexible battery (3) is attached to the top of the flexible circuit board (1), and the electronic element (4) is located between the flexible battery (3) and the flexible circuit board (1). The flexible circuit board (1) is attached to the top of the biological electrode (2), a first power supply pad group of the flexible circuit board (1) is electrically connected to the flexible battery (3), and a second power supply pad group of the biological electrode (2) is electrically connected to the flexible circuit board (1). This apparatus is conducive to protecting the elements while eliminating the need for plastic housing packaging. Adopting ultra-thin adhesive bonding packaging further reduces the volume of the product, with the thickness of a critical part thereof being only about 2 mm, thereby improving the user experience.

The utility model belongs to the technical field of battery replacement of electric vehicles, and discloses a flexible battery gripper and a battery replacement robot. The battery flexible gripper comprises a lifting appliance and a flexible connecting assembly, and the lifting appliance can be in butt joint with a battery and is locked and attached to the battery, so that the battery and the lifting appliance move synchronously; the flexible connecting assemblies are arranged between the lifting appliance and the tail end of the mechanical arm, each flexible connecting assembly comprises a connecting base, a connector and a connecting lock, the connecting bases are in rigid connection with the tail end of the mechanical arm, the connectors are in ball connection with the connecting bases, and the connecting locks are arranged between the connectors and the lifting appliance. According to the flexible battery gripper, the lifting appliance is connected to the mechanical arm through the flexible connecting assembly, so that the lifting appliance can translate, incline and / or deflect relative to the mechanical arm, the position deviation between the mechanical arm and the battery can be quickly compensated through the movement of the lifting appliance, the battery replacement time can be shortened, and the battery replacement efficiency can be improved.

The application relates to a preparation method of a high-performance flexible thick electrode utilizing cracks in an active layer in a positive direction, which comprises the following steps: polyvinylidene fluoride is added into N-methylpyrrolidone, and is stirred for the first time until mixed uniformly; carbon black and lithium iron phosphate powder are added, and are stirred for the second time until uniformly mixed, so as to obtain mixed slurry; the mixed slurry is coated on an aluminum foil by using a coating machine, and is dried in a drying furnace, so as to obtain an electrode substrate, and cracks perpendicular to the thickness direction of the electrode are generated on the surface of the electrode substrate; the electrode substrate is cut into electrode pieces by using a punching slicer, so as to obtain a high-performance thick flexible electrode. The low-circuit high-performance thick flexible battery utilizing cracks in the active layer in the positive direction is obtained, electrolyte infiltrated in the cracks can be used as a fast channel for lithium ion transmission, and the utilization rate of the active layer of the thick electrode under high rate is improved. Meanwhile, the grooves of the cracks can provide the required space when the electrode is bent, and the stress of the thick electrode in bending is reduced.

The application relates to a wearable integrated self-powered bimodal sensing integrated system based on a flexible zinc-based battery and application, and belongs to the technical fields of flexible electronics, electrochemical energy storage and intelligent sensing technology. The application constructs a complete closed-loop system containing a special analog front-end signal conditioning-low-power wireless transmission-upper computer intelligent algorithm. The system solves the problems of high internal resistance matching and baseline drift of the flexible battery-sensor system through a customized small circuit, and further connects device preparation and system application, so that in-situ online monitoring without external equipment, all-weather and wearable is realized.

This invention relates to a flexible battery voltage acquisition method. Based on the presence of various complex voltage acquisition harnesses and connecting cables of different lengths on battery modules within an energy storage battery box, it proposes a method that uses the same single-cell battery management system to switch between different types of battery modules, thereby changing the voltage acquisition node and improving voltage acquisition accuracy. Simultaneously, it can also determine whether there is an abnormal battery voltage based on the read values ​​using corresponding algorithms, and can also identify abnormal voltage acquisition circuits.

This invention provides a Pt nanosheet / PVP-CNT-N-doped graphene aerogel, its preparation method, and its application in flexible batteries. The preparation method includes the following steps: adding graphene oxide dispersion and hydrophilic CNT dispersion to a Tris-HCl buffer solution, followed by the addition of a nitrogen source and ultrasonic treatment to obtain a mixed solution; then performing a hydrothermal reaction to obtain a 3D CNT-N-doped graphene aerogel; adding a Pt source aqueous solution to the CNT-N-doped graphene aerogel, adsorbing the excess Pt source aqueous solution, then adding a reducing agent and a dispersant, and performing a hydrothermal reaction to obtain the final product. The material prepared by this invention efficiently catalyzes the oxygen reduction reaction. When used as a positive electrode in a flexible zinc-air battery assembly, it exhibits an open-circuit voltage as high as 1.697V and a high current density of 139.0 mA / cm². 2 It exhibits a high efficiency of 68.5 mW / cm². 2 It has a high power density and a stable discharge voltage.

The embodiment of the invention relates to the technical field of solar energy, and discloses a flexible photovoltaic folding assembly which comprises a laminated body integrally formed through a laminating process. The flexible battery string comprises a plurality of flexible battery units which are sequentially arranged along the length direction of the laminated body and flexible electric connecting pieces which are connected between the adjacent flexible battery units; the second packaging piece, the flexible battery string and the first packaging piece are sequentially stacked to form the laminated body; a first bending guide part is arranged in an area, corresponding to the flexible electric connecting piece, of the first packaging piece, and the flexible electric connecting piece is provided with a second bending guide part; the first bending guide portion and the second bending guide portion at least partially overlap in a lamination direction of the laminate. According to the embodiment of the invention, the first bending guide part and the second bending guide part are arranged, so that a preset and regular stress release path is provided for bending of the laminated body, the problem that the appearance of the bent part of the assembly is poor is solved, and the uniformity and high-grade feeling of the appearance of a product are ensured.

The utility model discloses a soft package battery cell bracket, which is characterized in that a top support strip and a bottom support strip are arranged in parallel relatively, and a separation support strip is fixedly connected with the top support strip and the bottom support strip respectively, so that the battery cell bracket is stable in structure and can support a soft package battery cell; the first containing groove and the second containing groove are formed in the two sides of the partition supporting strip and used for containing the soft package battery cells, so that two battery cell supports can be installed on the battery cell support, and compared with the mode that the battery cells are installed through a single support, the installation frequency of the soft package battery cells can be reduced, and the installation efficiency of the soft package battery cells is improved. In addition, the connection process between the soft package battery cells can be omitted, the production efficiency is improved, the identification parts are arranged at the ends, close to the top supporting strip, of the separation supporting strips, in the battery cell support stacking installation process, the installation direction of the battery cell support can be conveniently and manually identified, and the production efficiency is further improved.

The invention discloses a preparation method of a zinc-air battery electrode material, which comprises the following steps: dissolving a thiophene reaction monomer in a solvent, adding a catalyst, uniformly mixing, and carrying out polymerization reaction at-10-180 DEG C to obtain a precipitate; washing indissolvable substances with dilute acid and deionized water, and drying to obtain porous organic polymer powder; and heating the porous organic polymer powder to 250-1600 DEG C in an inert atmosphere, and reacting to obtain the zinc-air battery electrode material. According to the method, the sulfur element and the carbon skeleton are combined in the form of covalent bonds and form a stable sulfur chain in the material system, the carbon-sulfur bonds are distributed in the carbon skeleton and can greatly improve the energy density and specific capacity of the zinc-air battery in the cycle process of the battery, and meanwhile, the zinc-air battery has good cycle stability and rate capability; and the practical application value can be shown in the field of flexible batteries.

The application discloses a flexible battery and an electronic device, and belongs to the technical field of batteries. The flexible battery comprises a first flexible packaging layer (F100), a plurality of battery cells (100) and a second flexible packaging layer (F200) which are arranged in layers. The plurality of battery cells (100) are arranged on one side of the first flexible packaging layer (F100) and are arranged at intervals along a first direction (H1). The second flexible packaging layer (F200) comprises a convex part (F301) covering the battery cells (100) and a concave part (F302) located between adjacent battery cells (100). The elastic modulus of the first flexible packaging layer (F100) is greater than that of the second flexible packaging layer (F200). The flexible battery can improve the bending resistance of the flexible battery.

The invention provides a preparation process of a high-safety wearable flexible battery and an application of the high-safety wearable flexible battery in electronic equipment, a flexible positive electrode, a diaphragm, a modified gel electrolyte and a flexible negative electrode are laminated or wound in sequence and are loaded into a flexible battery shell, and the high-safety wearable flexible battery is prepared after packaging; the modified gel electrolyte comprises a blending matrix, a dynamic cross-linking agent, a nano filler, a lithium salt and a plasticizer, the blending matrix comprises a carboxylic acid betaine methacrylate-acrylamide copolymer and a polyvinylidene fluoride-perfluorohexyl ethyl acrylate copolymer, the dynamic cross-linking agent is guanidyl methacrylate, the nanofiller is povidone modified zirconium oxide, and the crosslinking agent is polydimethylsiloxane. The plasticizer is prepared from polyethylene glycol monomethyl ether and 1-butyl-3-methylimidazolium tetrafluoroborate. The modified gel electrolyte used in the invention has no liquid leakage risk, has lithium dendrite resistance, is stable at high temperature, has no combustion explosion hidden danger, and meets the wearable close-fitting use requirement.

This invention relates to the field of solar cell technology, specifically to a gallium arsenide solar cell with ADA-modified PI and its fabrication method. The gallium arsenide solar cell, from bottom to top, comprises a modified PI substrate, a metal bonding layer, an epitaxial active layer, a top electrode, an anti-reflection coating layer, and a bottom electrode. The modified PI substrate is obtained by cyclic thin-coating and pre-crosslinking modification of a PI film substrate with ADA-modified coating solution, and includes a PI film substrate and an ADA-modified layer. This invention's gallium arsenide solar cell uses an ADA-modified PI film substrate, effectively solving the problems of warpage, interlayer failure, and insufficient flexibility of existing flexible GaAs solar cell PI film substrates, thus meeting the environmental resistance requirements of space-use devices.

The invention discloses a method for screening micro-damage after welding of a gallium arsenide battery. The method comprises the following steps: step 1, deploying a measurement and control device; 2, initializing the measurement and control device; step 3, circuit state switching; step 4, parallel resistance calculation; 5, damage judgment and shunting; according to the method, detection is synchronously carried out in the pressure maintaining stage after electric resistance welding, no extra production procedure needs to be added, and the problems that the system complexity is improved and the production takt is reduced due to electroluminescence detection are solved; the parallel resistance Rsh of the battery can be accurately measured and calculated within milliseconds, whether the battery is qualified or not can be detected after single welding, unqualified products are prevented from entering a subsequent surface mounting process, the problem of labor hour waste caused by a solar simulator scanning IV curve screening mode is solved, invalid labor hour consumption caused by whole-course welding when the battery is damaged at an early stage is thoroughly avoided, and the production efficiency is improved. And the requirements of an automatic production line can be met, the production cost is reduced, the production efficiency is improved, and the current situation of low yield of thinned batteries and flexible batteries is improved.

A flexible, textile integrated electrochemical cell comprising: a flexible cathode including a fabric containing a conductive material; a cathodic layer coated on the cathode; a flexible anode including a fabric containing a conductive material; an anodic layer coated on the anode; a PVDF / Al2O3 based separator; an electrolyte; and flexible current leads; wherein the flexible current leads are hermetically sealed and operatively coupled to the cathode and anode.