1446 results about "Battery recycling" patented technology

The invention relates to a waste lithium iron phosphate battery recycling method, in particular to a graded recycling method for lithium, iron, phosphorus and graphite in a waste lithium iron phosphate battery, and belongs to the technical field of lithium ion batteries and resource recycling of the lithium ion batteries. According to the method, the mode that oxidizing roasting and selective leaching are combined is adopted, the leaching rate and selectivity of lithium are effectively improved, the leaching rate of the lithium element is close to 100% under the optimized condition, and limit recovery of the lithium element is achieved; meanwhile, aiming at the problem that iron and phosphorus in the leaching residues are difficult to utilize, a wet ball milling and secondary acid leaching method is combined, phosphorus and iron elements are separated from negative electrode graphite firstly, and graded recovery of iron, phosphorus and graphite is achieved. According to the method, the high recovery rate of lithium is realized, and meanwhile, high-added-value products such as ferric oxide and sodium phosphate are prepared by efficiently recovering ferric phosphate.

The invention provides a method for preferentially extracting lithium from battery black powder, and relates to the field of battery recovery. The method comprises the following steps: mixing battery black powder with water and acid liquor, carrying out lithium extraction reaction on the battery black powder under the conditions of pressurization and heating to obtain reacted slurry, and carrying out solid-liquid separation to obtain a lithium-rich solution and residues; the battery black powder comprises at least one of waste ternary lithium ion battery positive electrode powder, waste ternary lithium ion battery positive and negative electrode mixed powder and waste lithium iron phosphate battery black powder. According to the method for preferentially extracting the lithium from the battery black powder, operation steps are simplified, energy consumption is reduced, efficient and preferential recovery of the lithium is achieved, the recovery rate of the lithium and the separation efficiency of the lithium and nickel / cobalt / manganese are remarkably improved, the lithium leaching rate can reach 96.5% or above, and the nickel-cobalt-manganese leaching rate is lt; and 0.5%.

The invention discloses a new energy automobile battery recycling management system and a new energy automobile battery recycling management method, and relates to the technical field of battery recycling. A multi-dimensional evaluation standard is introduced in a screening stage, and batteries capable of being used in an echelon mode are screened through a weighted scoring method in combination with the service life, the driving mileage and the operation data abnormal condition of a vehicle; the situation that the batteries with too large health state differences enter the echelon utilization process is reduced; in the health assessment stage, SOC is calculated by adopting a coulometric method, SOH is measured in combination with a state-of-health ratio method, and an exponential attenuation model is introduced to predict the future life of the battery, so that the state-of-health of the battery entering the echelon utilization link is similar, and the problem of echelon utilization imbalance caused by individual difference is reduced; in the matching link, the batteries are grouped based on capacity, internal resistance and attenuation trend, deviation threshold values are set, optimal matching is screened, it is guaranteed that performance parameters of the assembled battery pack are balanced as much as possible, energy loss and local heating are reduced, and system stability is improved.

The invention relates to the technical field of battery recovery monitoring, in particular to a discharge crushing environmental data monitoring system for battery recovery. The system comprises a data acquisition module used for obtaining a sequence corresponding to each dimension based on environment data of different dimensions in the battery crushing equipment; the sample space construction module is used for screening the dimensions to obtain to-be-analyzed dimensions and constructing a sample space; the clustering analysis module is used for clustering the data points in the sample space to obtain clusters; judging whether the data points in each cluster are suspected abnormal data points or not; the abnormal degree acquisition module is used for clustering all the suspected abnormal data points in a time sequence to obtain a time sequence cluster and an abnormal degree; and the monitoring module is used for acquiring the comprehensive abnormal degree and judging whether the discharge breakage of the battery is abnormal or not based on the comprehensive abnormal degree. The condition of the old battery discharge crushing process can be accurately monitored.

The invention discloses a solid-phase sintering repair method of a waste lithium iron phosphate battery material, and relates to the related field of battery recovery and repair, and the method comprises the following steps: disassembling the waste lithium iron phosphate battery material, taking out a battery positive plate, cleaning, drying and separating a positive material; a spectrograph is adopted for component analysis, the element component content is determined, and raw material adding and supplementing are conducted based on the deviation value of the theoretical element proportion; based on the characteristic information, sectional type sintering scheme analysis is conducted, and solid-phase sintering repair scheme parameters are obtained; the mixed lithium iron phosphate powder is pressed into a sheet shape and placed in sintering equipment for solid-phase sintering repairing treatment, and a repairing sample is obtained; and obtaining test performance parameters according to a battery application detection standard, and performing repair compensation control on the repair scheme parameters. The technical problem that the repairing effect is uncontrollable due to lack of precise analysis and targeted optimization in existing solid-phase sintering repairing is solved, and the technical effects of efficient repairing and performance improvement are achieved.

The invention relates to the technical field of battery recycling, and discloses a new energy automobile battery recycling performance evaluation system which comprises the following steps: S1, preliminarily screening out dispute batteries; s2, acquiring a characteristic parameter set of the dispute battery in a plurality of temperature zones; s3, inputting the characteristic parameter set into a battery evaluation model, and respectively calculating a temperature sensitive factor, a heat capacity coupling coefficient and an impedance-temperature relation curve slope by constructing a plurality of coefficient evaluation functions in the model; s4, dynamically determining the weight of each coefficient evaluation function based on historical data, and constructing a standard evaluation function to calculate the health index of the dispute battery; and S5, performing echelon grading recycling on the dispute batteries according to the health indexes. According to the method, the performance difference between the batteries to be recycled is amplified by measuring the performance difference of the batteries to be tested at high temperature, normal temperature and low temperature, so that the evaluation accuracy of the batteries is improved, and the method has extremely high economic and safety benefits.

The invention discloses lithium battery recycling material powder as well as a preparation method and application thereof, and relates to the technical field of battery recycling. The lithium battery recovery material powder comprises metal compound powder and an elemental carbon material, and the metal compound powder comprises at least one of the following elements: lithium, nickel, cobalt, manganese and iron; the separation index S of the lithium battery recovery material powder is greater than or equal to 0.15 m < 2 > / kg and less than or equal to 43 m < 2 > / kg, S = WDOC * BET, WDOC refers to the mass percent of soluble organic carbon in the lithium battery recovery material powder, and the soluble organic carbon refers to organic carbon which can be dissolved or dispersed in an aqueous solution with the pH value of 1-14; bET refers to the specific surface area of the lithium battery recovery material powder. The separation efficiency is high when the positive electrode material and the negative electrode material in the lithium battery recycled material powder are separated, and when the lithium battery recycled material powder is subjected to hydrometallurgy to extract valuable metal, the good metal leaching rate is achieved in the acid leaching stage.

The invention relates to the technical field of battery recycling, and discloses waste ternary lithium battery recycling equipment which comprises a crusher, a crushing roller and a crushing plate, a guide hopper is installed in the crusher, a conveying belt is arranged below the guide hopper, a crushing assembly is arranged on the outer side of the crushing roller, and an air hole used for spraying nitrogen is formed in the side portion of the crushing assembly. A gas conveying assembly is arranged in the crushing roller and communicates with the gas holes. In an oxygen-deficient environment, the crushing assembly extrudes and crushes the lithium battery, and when the lithium battery is crushed, the air holes spray nitrogen to the lithium battery, so that an oxygen-free environment is instantly formed near the lithium battery, and the risk of explosion generated when the lithium battery is crushed is effectively reduced; and the crushing head is driven by the sliding block to move outwards by the same distance for compensation, so that the distance between the end part of the crushing head and the crushing plate is not changed, and a good crushing effect is ensured.

This invention discloses a method for leaching lithium iron phosphate mixed powder with iron salts and recovering all components, belonging to the field of battery recycling. The invention uses an iron salt solution to leach the mixed powder, obtaining a lithium-containing leachate and leaching residue. Ferrous ions in the leachate are regenerated into ferric iron through acidification and oxidation, and recycled for leaching the next batch of mixed powder. After reaching a preset number of cycles, the leachate is used for re-leaching multiple batches of leaching residue to improve the lithium leaching rate. Ultimately, a enriched solution containing Li, Fe, Cu, and Al and graphite-containing iron phosphate residue are obtained. Copper is recovered from the enriched solution through iron powder replacement, and a high-purity lithium chloride solution is obtained through extraction and separation, while ferric chloride (recycled) and aluminum chloride crystals are also recovered. The leaching residue is treated with hydrochloric acid to obtain regenerated graphite, and the pH is adjusted with alkali to obtain high-purity iron phosphate. This method achieves full component recovery under mild conditions, reducing separation steps and chemical consumption through a "leaching-regeneration-leaching" cycle mechanism, thus achieving both environmental and economic benefits.

The invention discloses a calcining carbon removal-supercritical expansion stripping method for regenerating graphene from graphite of a waste lithium battery, and belongs to the field of lithium battery recovery and nano material preparation. Comprising the following steps: treating the waste lithium battery to obtain waste lithium battery positive and negative electrode mixed powder, and then roasting to obtain battery powder; leaching the battery powder in a nitric acid solution to obtain purified graphite slag; the method comprises the following steps: mixing graphite slag with supercritical gas fluid, treating, quickly releasing pressure to normal pressure, and separating to obtain graphene. According to the method, on the basis of interlayer structure characteristics of the waste graphite negative electrode, organic matters and amorphous carbon are removed through multi-stage calcination, a supercritical N2 / CO2 mixed fluid permeation and pressure relief expansion synergistic stripping technology is combined, and low-damage dissociation is achieved through graphite microcracks. According to the method, physical stripping and liquid nitrogen shock cooling strengthening are coupled, and the obtained graphene sheet layer is high in integrity and few in structural defect and can be directly used for manufacturing conductive composite materials and energy storage devices.

The present invention relates to the technical field of battery recycling equipment, and in particular to a discharge device for recycling waste lithium batteries. The hoisting assembly includes winches arranged at intervals on a mounting frame, the ropes of the winches slide through the mounting frame, and the ends of the ropes of the winches are respectively connected to immersion frames, and the immersion frames are loaded with placement frames for placing batteries. Through the coordinated operation of the hoisting assembly, the loading and unloading assembly and the deployment assembly, differentiated discharge treatment of waste lithium batteries is achieved; by using the winch and the multi-stage telescopic cylinder in conjunction with the independent immersion frame and placement frame structure, targeted discharge can be performed on batteries with different remaining power conditions; at the same time, the loading and unloading assembly supports the independent transportation of batteries before and after discharge, providing guarantees for continuous and batch operations, and the deployment assembly can adjust the brine ratio in real time to ensure a consistent electrolyte environment during the discharge process, thereby improving the stability of the discharge effect and the resource recovery rate.

The invention relates to the technical field of lithium ion power battery recycling, and discloses a lithium ion power battery echelon utilization auxiliary analysis method and system, and the method comprises the steps: obtaining the operation parameter data of a decommissioned battery pack, analyzing the characteristics of a single battery, and confirming an echelon utilization mode (capacity recombination or internal resistance equalization); performing initial capacity and internal resistance grouping based on the mode, and generating adjustment data through capacity attenuation trajectory matching and internal resistance drift trend analysis; performing electrochemical state degradation prediction on the internal resistance adjustment data, and constructing an echelon utilization comprehensive strategy in combination with the adjustment data; and collecting strategy execution feedback data, evaluating a performance matching degree and iteratively optimizing the strategy. The system comprises a mode identification module, a capacity recombination module, an internal resistance balancing module, a strategy optimization module and a feedback execution module. According to the method, through multi-dimensional feature analysis, dynamic grouping, accurate prediction and closed-loop optimization, the efficiency and safety of echelon utilization of the retired batteries are improved, and the method is suitable for a recycling scene of the lithium ion power batteries.

The invention discloses a waste lithium battery pack recovery residual value evaluation system, and the system comprises an appearance screening module which is used for scanning to obtain battery pack shell data and electrode connection integrity data, and dividing a lithium battery pack into a complete battery pack and a damaged battery pack; the residual value grading evaluation module constructs a complete battery pack evaluation model, and divides a complete battery pack into a directly reusable battery and a to-be-disassembled complete battery based on a residual value evaluation result; the disassembly scheme generation module evaluates the damaged battery pack and generates a disassembly scheme based on the three-level disassembly decision tree; the material value classification module divides a to-be-disassembled complete battery and a damaged battery pack into batteries with high recovery value and batteries with low recovery value; and the comprehensive residual value evaluation module adds a weight value to the obtained residual value evaluation result to obtain a comprehensive residual value evaluation result. The method has the advantages that efficient and accurate battery recovery and maximum utilization of resources are realized through appearance screening and disassembly scheme generation in combination with material value analysis and market dynamic adjustment.

The invention provides a battery replacement control method and a battery replacement system for electric mechanical equipment, and the method comprises the steps: controlling a battery replacement mechanical arm to lift a battery pack to be replaced from a battery cabin to a preset position I after the connection of the battery replacement mechanical arm and the battery pack is completed; the battery replacement mechanical arm is controlled to move the battery pack needing to be replaced from the first preset position to a battery recycling area of the battery replacement platform, and meanwhile instruction actions for controlling the battery replacement mechanical arm are recorded; the battery transposition platform is controlled to exchange positions of the new battery pack to be replaced and the battery pack to be replaced, so that the new battery pack to be replaced is moved to the position of a battery recycling area; the battery replacing mechanical arm is controlled to reversely execute the recorded instruction action, and the new battery pack to be replaced is placed at the first preset position; the battery replacing mechanical arm is controlled to move the new battery pack to be replaced from the first preset position into the battery bin; according to the invention, automatic battery replacement of the electric engineering machinery can be realized, the battery replacement efficiency and the battery replacement accuracy are improved, safety accidents are avoided, and the environmental adaptability of the battery replacement equipment is improved.

The invention discloses a full-life-cycle intelligent management system and an echelon utilization method of a battery replacement type power battery. The full-life-cycle intelligent management system comprises a full-life-cycle intelligent digital management system, a power battery application system, a retired battery echelon utilization system and a waste battery recycling system, the full-life-cycle intelligent digital management system comprises a battery identification module, a data storage module, a data analysis module and a large database module. Through data acquisition and analysis of the full-life-cycle intelligent digital management system, power battery application, decommissioned battery disassembly and recombination, recombined battery echelon utilization and waste battery resource recycling are integrated, full-life-cycle management of the power battery is achieved, the tail end barrier of development of the new energy industry is solved, and the development efficiency of the new energy industry is improved. The high-value application of the power battery is improved, the environmental pressure of local solid wastes is solved, and the sustainable development of local waste production enterprises and industries is ensured.

The invention belongs to the field of waste battery recovery, and discloses a waste lithium ion battery positive and negative electrode material recovery method and device and a product, and the method specifically comprises the following steps: pre-treating a waste lithium ion battery to obtain a mixed material of the positive electrode material and the negative electrode material, and then mixing the mixed material with eutectic salt to obtain a to-be-separated mixture; the density of the eutectic salt ranges from 2.5 g / cm < 3 > to 3.5 g / cm < 3 >; and heating the to-be-separated mixture to be above the eutectic point of the eutectic salt, collecting an upper-layer solid substance to obtain a regenerated negative electrode material, and collecting a lower-layer solid substance to obtain a regenerated positive electrode material. The co-molten salt with the density between that of the positive electrode material and that of the negative electrode material can enable the negative electrode material to float and the positive electrode material to sink, so that separation and regeneration of the positive electrode material and the negative electrode material of the waste lithium ion battery are effectively realized, subsequent reutilization is facilitated, and the method has the advantages of simple process and low cost and is suitable for batch production.

The invention provides a waste gas treatment device for lithium battery recovery treatment, and belongs to the technical field of waste gas treatment. The mixing assembly comprises a supporting plate and an adsorption drawer, the two ends of the supporting plate are fixedly connected to the bottom inner wall and the top inner wall, close to the air inlet pipe, of the activated carbon adsorption box correspondingly, the adsorption drawer is installed in the adsorption cabinet, and a first rotating groove is formed in the bottom inner wall of the adsorption drawer; a first avoiding groove is formed in the outer wall of the side, away from the center shaft of the activated carbon adsorption box, of the adsorption drawer, and a pull ring is installed on the outer wall, close to the first avoiding groove, of the adsorption drawer. By arranging the mixing assembly, waste gas can be pushed to the adsorption cabinet, activated carbon particles can conveniently adsorb the waste gas, follow-up stirring is matched to promote the waste gas to diffuse outwards from the interiors of the particles, the adsorption efficiency of the activated carbon particles is improved, and the crushed activated carbon particles after saturation can be collected.

The invention relates to a waste new energy battery automatic classification recycling device, and relates to the technical field of waste battery recycling, the waste new energy battery automatic classification recycling device comprises a rack and a detection table obliquely arranged on the rack, a set of limiting plates are symmetrically arranged on the detection table, a notch is formed in the bottom wall of the detection table, a mounting roller is rotatably arranged on the bottom wall of the detection table, and the limiting plates are arranged on the mounting roller. A mounting roller is arranged on the rack, a plurality of limiting rods are symmetrically arranged on the mounting roller, a mounting frame is arranged on the rack, a transmission assembly is arranged on the mounting frame, a sorting table is rotatably arranged at the tail end of the detection table, a plurality of recycling boxes are arranged on the side wall of the rack, a rotating assembly is arranged on the rack, a visual camera is arranged on the rack, and the visual camera is provided with a camera. The visual camera is electrically connected with a processor, and the rotating assembly is electrically connected with the processor. The lithium battery sorting device has the advantages that different types of lithium batteries of the same specification can be classified conveniently, manual labor is reduced, the automation degree of the device is improved, and the sorting efficiency is improved.

The invention belongs to the technical field of lithium ion battery recovery, and particularly relates to an impurity removal method of waste lithium iron phosphate and battery-grade ferric phosphate, waste lithium iron phosphate black powder is added into high-concentration acid for acid leaching, and leaching of iron, phosphorus and lithium elements is achieved; adding an impurity removal agent 1 into the obtained filtrate to remove impurity copper; then adding a composite impurity removing agent 2 to form an aluminum-containing complex precipitate, removing impurity aluminum, and meanwhile, removing impurity titanium due to hydrolysis in the process; and adding an oxidizing agent and a precipitating agent into the obtained purified liquid for synthesis. And supplementing phosphoric acid into the obtained amorphous iron phosphate, carrying out crystallization reaction at high temperature, and finally, carrying out flash evaporation and calcination to obtain the anhydrous battery-grade iron phosphate. The method is high in impurity removal efficiency, the regenerated iron phosphate can reach battery-grade iron phosphate, and the method is a feasible method for regenerating the battery-grade iron phosphate by using the waste lithium iron phosphate black powder.

The present invention relates to an automatic classification and recycling device for waste new energy batteries, belonging to the technical field of waste battery recycling. It includes a frame and a detection table inclinedly arranged on the frame. A group of limiting plates are symmetrically arranged on the detection table. A notch is formed on the bottom wall of the detection table. An installation roller is rotatably arranged on the bottom wall of the detection table. A number of limiting rods are symmetrically arranged on the installation roller. An installation frame is arranged on the frame. A transmission component is arranged on the installation frame. A sorting table is rotatably arranged at the end of the detection table. A number of recycling bins are arranged on the side wall of the frame. A rotating component is arranged on the frame. A vision camera is arranged on the frame. The vision camera is electrically connected to a processor, and the rotating component is electrically connected to the processor. This application has the advantages of facilitating the classification of lithium batteries of different models under the same specifications, reducing manual labor, improving the automation degree of the device, and enhancing the sorting efficiency.

The invention discloses a vehicle power battery tracking and recycling system based on the Internet of Things, and particularly relates to the technical field of vehicle power battery recycling monitoring. The real-time capacity of the battery is calculated based on the monitored data and the introduced capacity correction coefficient of the battery temperature, so that the calculation precision of the battery capacity can be improved; meanwhile, the real-time battery internal resistance, the real-time open-circuit voltage, the average charging duration of charging 20% of electric quantity in real time, the real-time average maximum voltage difference of the single batteries and the real-time average maximum temperature difference of the single batteries are calculated based on monitoring data; the comprehensive health degree index of the battery is evaluated based on the change relation between the real-time index and the initial index and the weight coefficient of each index, and then whether the battery needs to be recycled is judged, so that the accuracy of battery recycling judgment can be improved, and the application safety of the vehicle power battery is guaranteed.

The invention discloses a method for separating, purifying and regenerating waste battery negative electrode powder, which belongs to the field of battery recycling and regenerating, and mainly comprises the following process steps of: ball-milling and screening waste battery negative electrode pieces into certain granularity, soaking the waste battery negative electrode pieces in alkali liquor and an impurity removal agent, and stirring for reaction and separation to obtain a negative electrode powder wet material and a copper ion solution; carrying out drying demagnetization and infrared irradiation treatment on the wet negative electrode powder to obtain regenerated negative electrode powder; and the copper ion solution is subjected to extraction, back extraction and reduction to obtain crude copper, and the crude copper is subjected to vacuum distillation to obtain an electronic-grade copper product. Wherein the impurity removal agent comprises an oxidizing agent, the oxidizing agent oxidizes elemental copper and forms soluble substances under the action of alkali liquor, and the excellent separation effect is achieved. The negative electrode powder treatment comprises infrared irradiation treatment, decomposition of an adhesive can be achieved through the dual effects of heat irradiation and heat conduction, the volume heating effect is formed through scattering, surface crusting is effectively avoided, the adhesive can be efficiently removed, and the quality and the recycling efficiency of the regenerated negative electrode powder are guaranteed.

The invention discloses a regulation and control system and method of a pH meter in a waste lithium battery recovery process, and relates to the technical field of waste battery recovery treatment. The system comprises a central control module, a liquid caustic soda adjusting device and a liquid acid adjusting device, wherein a pH meter measures the pH value of a leaching solution of a leaching-stage reaction kettle in a waste lithium battery recycling process in real time; the central control module compares the pH value, measured in real time, of the leaching liquid in the leaching-stage reaction kettle with the pH value preset range of the leaching stage, acid liquid or alkali liquid is added into the leaching-stage reaction kettle according to the comparison result, and the pH value of the leaching liquid is adjusted to be within the pH value preset range of the leaching stage; the central control module can also identify interference factors measured by the pH meter and compensate the slope according to the current temperature so as to compensate the pH value, measured by the pH meter, of the leachate. According to the method, accurate control over the pH value in the leaching process can be effectively achieved, the recovery efficiency and quality of the waste lithium batteries are improved, and the production cost is reduced.

The invention relates to the field of waste battery recycling, and discloses a device and a method for preparing iron phosphate by using waste batteries, the device comprises an acid leaching kettle, a filtrate impurity removal kettle, a synthesis kettle and an aging crystallization kettle which are communicated in sequence, and a material lifting pipe, a sulfuric acid pump and a water supply pump which are communicated with the acid leaching kettle are arranged on the side surface of the acid leaching kettle; after a solution obtained after acid leaching flows into the first pressurization channel of the tank body through the communicating pipe, the solution rises into the first temporary storage cavity to be temporarily stored, an overflow communicating hole is formed in the lower end of the first temporary storage cavity, and when the liquid level reaches a certain height, the solution flows into the second pressurization channel through the overflow communicating hole; when the first electric push rod drives the pressurization filtering part to ascend, the pressurization filtering part covers a port of the overflow communication hole, at the moment, the solution in the second pressurization channel downwards leaks to the second temporary storage cavity under the pressure effect, impurities in the solution cannot pass through the filtering holes to be intercepted in the second pressurization channel, and efficient separation of the solution and the impurities is achieved.

The invention relates to the technical field of new energy battery recycling, and discloses a new energy battery recycling device which comprises a disassembling table, supporting tables are fixed to the two sides of the disassembling table, multi-axis mechanical arms are fixed to the tops of the supporting tables, and a laser cutting head and a vacuum adsorber are fixed to the tail ends of the two multi-axis mechanical arms correspondingly. The new energy battery recycling device comprises a disassembling table, adjusting grooves are formed in the inner walls of the two sides of the disassembling table, first air cylinders are slidably connected to the interiors of the adjusting grooves, and second air cylinders are fixed to the bottoms of the first air cylinders. The first air cylinder drives the linkage frame and the ejector rod to move in the vertical direction of the new energy battery, in the moving process, the ejector rod is clamped into a cutting gap of the new energy battery, and then through continuous movement of the ejector rod, the effect of uncovering shells on the two sides of the soft package lithium battery is achieved; and the convenience of disassembling the shell of the soft package lithium battery by the vacuum adsorber is further improved.

The invention relates to the technical field of old battery disassembly, in particular to a reverse winding disassembly device for waste battery treatment and a reverse winding technology.The reverse winding disassembly device comprises a main board, a funnel barrel penetrates through the main board, wound battery cells are distributed at the lower end of the funnel barrel, and a lifting chassis is arranged at the lower ends of the battery cells; one side of the chassis is fixed on a vertical plate arranged at the edge of the main plate by arranging a support plate, one side of the battery cell is provided with two opposite clamping sticks, the clamping sticks are fixed on the main plate by arranging a bracket, and the other side of the battery cell is provided with a pushing piece for horizontally pushing. According to the invention, the mechanical automatic disassembling device is used for disassembling the battery core in a reverse winding manner to obtain complete positive and negative pole pieces, and then the positive and negative pole pieces are treated to meet the recycling requirements of the old battery recycling industry.

The invention belongs to the field of treatment devices, and particularly relates to a pretreatment device for waste lithium battery recycling, which comprises a main body, an adaptive cutting assembly, a classified dismantling assembly and a cleaning and screening device, the adaptive cutting assembly comprises a supporting frame, a protection plate, a servo motor, a connecting block, a ball screw, a ball nut and a mounting plate. The two sides of the supporting frame and the protection plate are fixedly mounted. The servo motor drives the ball screw at the output end to rotate, rotation motion is converted into linear motion of the ball nut through threaded fit of the ball screw and the ball nut, the mounting plate fixed to one side of the ball nut moves synchronously along with the ball screw, and after the mounting plate reaches a designated point position, the torque motor drives the first transmission wheel at the output end to work; a second transmission wheel is driven through a transmission belt, rotating power is transmitted to a cutting blade through a fixing shaft on the back face of the second transmission wheel, the battery is cut through the cutting blade, the cutting adjusting function is achieved, the problem that batteries of different specifications need to be recycled is solved, and the adaptability in use is improved.

The present invention relates to the technical field of lithium-ion battery recycling and utilization, and specifically discloses a method for recycling and regenerating positive electrode materials from waste ternary lithium-ion batteries. The present invention uses a ternary deep eutectic solvent combined with microwave-assisted leaching to efficiently leach waste lithium-ion battery positive electrode materials, and then combines subsequent precipitation and adjustment of the molar ratio of metal elements to regenerate the positive electrode materials. The obtained recycled and regenerated positive electrode materials have good electrochemical properties. The technical solution provided by the present invention effectively solves the problems of high cost and complicated process flow of the existing method for recycling metals from waste ternary lithium-ion batteries, and the problem that when the recovered metals are used to prepare lithium battery positive electrode materials, the purity is insufficient, resulting in poor effect of the regenerated positive electrode materials. It provides a new idea for the treatment of waste ternary lithium-ion batteries.

The invention discloses a device for recovering valuable metals from waste battery waste, and relates to the field of waste battery recovery. The device comprises a box body, two conveyor belts and a recovery mechanism. The two conveyor belts and the recovery mechanism are all arranged inside the box body. A feed pipe is penetrated through the top of the box body. A vertical diverter plate is fixed at the inner midline of the feed pipe. A guide pipe is symmetrically connected to the bottom end of the feed pipe. The two conveyor belts are arranged below the two guide pipes. Each conveyor belt consists of a conveyor belt, frame plates on both sides, and conveying rollers at both ends. The recovery mechanism consists of two groups of vibration and dispersion components, a magnetic component and two rotating magnets. The vibration and dispersion component is used to vibrate the waste battery waste to avoid accumulation. The magnetic component is used to absorb magnetic metals in the waste battery waste. The rotating magnet is used to cooperate with the vibration and dispersion component to separate non-magnetic metals. The application can effectively recover magnetic and non-magnetic metals through the coordinated work between the mechanisms, improve the purity of the recovered materials, reduce resource waste, avoid materials being pushed together, improve the processing efficiency of the device, and avoid uneven materials, which leads to uneven load or damage of the conveyor belt.

The invention belongs to the technical field of resource recycling of waste lithium batteries, and particularly relates to a method for extracting lithium by stripping and coupling organic matter degradation of waste lithium batteries, which comprises the following steps: S1, obtaining a waste lithium iron phosphate positive plate and an organic pollutant aqueous solution; s2, soaking the waste lithium iron phosphate positive plate in an organic acid solution, and stripping to obtain an aluminum foil and a lithium iron phosphate material; s3, adding the lithium iron phosphate material, a complexing agent and an oxidation auxiliary agent into the organic pollutant aqueous solution to obtain a first reaction system, and carrying out a first reaction; after the reaction of the second reaction system is balanced, carrying out solid-liquid separation to obtain filtrate and filter residues, adding a lithium salt precipitator into the filtrate, and filtering to obtain lithium salt and recovering the lithium salt; according to the method, the battery recovery process and the wastewater treatment process are ingeniously coupled, the components of the waste battery material are used as the catalyst, organic pollutants in the environment are degraded, and cooperative treatment of waste and upgrading and recovery of resources are achieved.