Abstract: A method for recycling a lithium battery cathode material. Residual aluminum on the positive electrode sheet is dissolved by a sodium hydroxide solution, and lithium in the cathode material enters the solution during the dissolution of aluminum, such that an ionic potential is vacated on the cathode material; a residue is washed to avoid sodium ion contamination, then dried, and allowed to react with metallic lithium and lithium sulfide under heating, such that crystal lattices of the material change; a product after first-stage lithium supplementation is directly sintered with a lithium source in an oxygen atmosphere to obtain monocrystalline ternary cathode material agglomerates, where a sintering method and a sintering temperature are controlled; and the agglomerates are crushed, then washed to remove residual lithium on the surface, and dried to obtain a monocrystalline ternary cathode material, which has the performance close to that of the initially synthesized monocrystalline cathode material.

Abstract: The present disclosure belongs to the technical field of lithium battery recycling, and discloses a method for separating and recovering valuable metals from waste ternary lithium batteries. The method includes the following steps: adding a persulfate to a waste ternary lithium battery powder, and conducting oxidative acid leaching to obtain a leaching liquor and a leaching residue; adding an alkali to the leaching liquor to allow a precipitation reaction; adding a sulfide salt to allow a reaction; adjusting a pH to allow a precipitation reaction to obtain a nickel hydroxide precipitate and a liquid phase A; adding a carbonate to the liquid phase A to allow a reaction, and conducting solid-liquid separation (SLS) to obtain lithium carbonate; and subjecting the leaching residue to calcination, adding a chlorate, heating a resulting mixture, and conducting SLS to obtain manganese dioxide.

Abstract: The present disclosure discloses a wet process for recovering valuable metals from a lithium battery. In the method, a waste lithium battery powder is subjected to selective leaching under the condition that a hydrogen sulfide gas is introduced through pressurization, such that Mn2+, Li+, and Al3+ metal ions enter a first-stage leaching liquor and nickel, cobalt, copper, and iron exist in a first-stage leaching residue in the form of a sulfide; then a pH of the first-stage leaching liquor is adjusted to remove aluminum and manganese, which achieves extremely thorough metal separation and leads to relatively pure products; a first-stage leaching residue is subjected to leaching in an acid liquor under a negative pressure, such that the sulfides of nickel, cobalt, iron, and copper are dissolved in a second-stage leaching liquor, and a hydrogen sulfide gas produced can be recycled in the first-stage leaching procedure through pressurization.

Abstract: The present invention discloses a method for power battery automatic fine-quantity sorting and an apparatus thereof, the method including the following steps of S1. The material is crushed, and leveled, and is then subjected to magnetic sorting processing to sort out iron powder; S2. The material after magnetic sorting is subjected to electrostatic processing to sort out positive electrode material powder; S3. The material after electrostatic processing is subjected to bounce processing to sort out the collector and graphite powder. A magnetic sorting device, an electrostatic sorting device, and a bouncing sorting device are accordingly provided.

Abstract: Disclosed is a device for automatically dismantling a power battery module, including a cutting platform, a clamping mechanism, a first cutting mechanism, a second cutting mechanism, a turnover mechanism, and a stripping mechanism. The clamping mechanism is disposed on the cutting platform. The first cutting mechanism includes a first cutting blade, a cutting blade set, and a first drive assembly. The second cutting mechanism includes a third cutting blade, a fourth cutting blade, and a third drive assembly. The first cutting blade, the cutting blade set, the third cutting blade, and the fourth cutting blade are vertically movable. The cutting blade set includes a plurality of second cutting blades that are movable relative to each other.

Abstract: Disclosed is an automatic production line for cascade utilization of power batteries, which is sequentially provided along the transmission direction of materials with: an appearance detection system, a screening device, a transport system, a residual energy detection device, a tab installation device and an assembling system, and in addition, is provided with a grouping device and a film sticking device, where the grouping device is located among the residual energy detection device, the tab installation device and a grouping station.

Abstract: Disclosed is an automatic production line for cascade utilization of power batteries, which is sequentially provided along the transmission direction of materials with: an appearance detection system, a screening device, a transport system, a residual energy detection device, a tab installation device and an assembling system, and in addition, is provided with a grouping device and a film sticking device, where the grouping device is located among the residual energy detection device, the tab installation device and a grouping station.

Abstract: Disclosed is an incomplete extraction method for recycling batteries, which may include: introducing a pretreatment gas into a device loaded with a waste battery powder, and bringing a gas outlet into communication with absorption liquid A and absorption liquid B in order; raising the temperature and introducing the pretreatment gas; reducing the temperature and introducing a reaction gas; raising the temperature, introducing the reaction gas, and then introducing the pretreatment gas; and reducing the temperature, and turning off the pretreatment gas; adding an extractant to absorption liquid A, mixing the mixture, taking organic phase A, adding a stripping agent, and taking aqueous phase A; and adjusting the pH to acidity, then adding an extractant, taking organic phase B, adding a stripping agent to obtain a stock solution enriched in Li, Mn, Ni and Co.

Abstract: The present disclosure belongs to the field of battery materials, and discloses a coated nickel-rich ternary material and a preparation method and application thereof. The coated nickel-rich ternary material has a chemical formula of LiNixCoyMnzO2·a[M3(PO4)2·bH2O], Where 0.6?x?0.8, 0.1?y?0.2, 0.1?z?0.2, x+y+z=1, 0.01?a?0.03, 3?b?8, M3(PO4)2·bH2O is at least one selected from the group consisting of nickel phosphate, cobalt phosphate and manganese phosphate; the coated nickel-rich ternary material has a flower-like structure. The preparation method of the present disclosure provides phosphate ions through the prepared phosphate solution, performs coating in a liquid phase environment, and synthesizes the precursor simultaneously by microwave hydrothermal synthesis, which is beneficial to the full contact between the phosphates and the precursor, and ensures the surface of the nickel-rich ternary precursor is uniformly coated with the phosphates. The method is simple and has good coating effect.

Abstract: Disclosed are a doped nickel-rich ternary material and a preparation method thereof. The preparation method comprises the following steps: (1) Mixing a nickel source, a cobalt source, and a manganese source in a solvent to obtain a solution A, adding oxidant and doping elements to the solution A, and stirring to obtain solution B; (2) Adding a complexing agent and nitric acid to the solution B and stirring to obtain solution C; (3) Drying the solution C to obtain aerogel D; (4) Grinding the aerogel D, and subjecting it to low-temperature pre-calcinating, and heating the aerogel to perform first calcinating to obtain precursor powder E; (5) Mixing the precursor powder E with a lithium source to obtain a mixture, and subjecting the mixture to second calcinating, grinding, and screening to obtain the doped nickel-rich ternary material.

Abstract: A vacuum cracking method and a cracking apparatus for a power battery are disclosed. The vacuum cracking method includes the following steps that: waste power batteries are fed from a feed hopper and then enter a rolling unit for rolling treatment to obtain a crushed material; the crushed material is transported to a cracking unit for preheating, then heated and cracked under an inert atmosphere or vacuum to obtain cracked gas, solid cracked products and non-crackable products; and the solid cracked products and the non-crackable products are transported to a pyrolysis unit for pyrolysis at an aerobic atmosphere to obtain pyrolysis gas and non-pyrolysis products.

Abstract: The present invention discloses a method for power battery automatic fine-quantity sorting and an apparatus thereof, the method including the following steps of Si. The material is crushed, and leveled, and is then subjected to magnetic sorting processing to sort out iron powder; S2. The material after magnetic sorting is subjected to electrostatic processing to sort out positive electrode material powder; S3. The material after electrostatic processing is subjected to bounce processing to sort out the collector and graphite powder. A magnetic sorting device, an electrostatic sorting device, and a bouncing sorting device are accordingly provided.

Abstract: The invention discloses a vacuum cracking apparatus for a power battery and a cracking method thereof. The cracking device comprises a cylinder and further comprises a rolling device, a first sealing device, a cracking device, a second sealing device, a pyrolysis device and a third sealing device which are arranged from top to bottom. The cracking device for the power battery of the present invention is equipped with the first sealing device, the second sealing device and the third sealing device to isolate the cracking device from the pyrolysis device and be capable of realizing material transmission and gas isolation without interference with each other, so that gas stirring between an anaerobic zone and an aerobic zone is avoided; and by combing battery cracking and battery pyrolysis, with cracked gas discharged after cracking as a fuel for cracking and pyrolysis or preheating a pyrolysis device, resources are fully used.

Abstract: Disclosed is a device for automatically dismantling a power battery module, including a cutting platform, a clamping mechanism, a first cutting mechanism, a second cutting mechanism, a turnover mechanism, and a stripping mechanism. The clamping mechanism is disposed on the cutting platform. The first cutting mechanism includes a first cutting blade, a cutting blade set, and a first drive assembly. The second cutting mechanism includes a third cutting blade, a fourth cutting blade, and a third drive assembly. The first cutting blade, the cutting blade set, the third cutting blade, and the fourth cutting blade are vertically movable. The cutting blade set includes a plurality of second cutting blades that are movable relative to each other.

Abstract: Disclosed is a method for recycling a hydrogen fuel cell of a new energy vehicle, including the following steps of: (1) discharging and disassembling a hydrogen fuel cell in turn to obtain a hydrogen supply system, an air supply system, a cooling system and a galvanic pile; (2) disassembling the galvanic pile into a catalyst and carbon cloth, and ashing to obtain ash; (3) adding an auxiliary agent into the ash, mixing, introducing inert gas, heating, introducing oxidizing gas, and absorbing tail gas by using an ammonium salt solution; and (4) adding a reducing agent into the ammonium salt solution absorbing the tail gas in step (3) to react, filtering, taking and cleaning a filter residue to obtain Pt.

Abstract: Disclosed are a photocatalyst and application thereof in environmentally friendly photocatalytic treatment of a power battery. The photocatalyst is obtained by loading Ag-TaON on a hollow glass microsphere, wherein a mass ratio of the Ag-TaON to the hollow glass microsphere is 1: 5 to 10. According to the invention, the Ag-TaON and the hollow glass microsphere are compounded, the hollow glass microsphere has better light permeability, which avoids mutual shielding between catalysts, such that the photocatalyst filled in a reactor is fully excited, which is capable of effectively improving a light utilization rate, thus improving the catalytic conversion efficiency of the photocatalyst.

Abstract: Disclosed is a method for recycling a hydrogen fuel cell of a new energy vehicle, including the following steps of: (1) discharging and disassembling a hydrogen fuel cell in turn to obtain a hydrogen supply system, an air supply system, a cooling system and a galvanic pile; (2) disassembling the galvanic pile into a catalyst and carbon cloth, and ashing to obtain ash; (3) adding an auxiliary agent into the ash, mixing, introducing inert gas, heating, introducing oxidizing gas, and absorbing tail gas by using an ammonium salt solution; and (4) adding a reducing agent into the ammonium salt solution absorbing the tail gas in step (3) to react, filtering, taking and cleaning a filter residue to obtain Pt.

Abstract: Disclosed is a method for anaerobically cracking a power battery, which includes the following steps: disassembling a waste power battery to obtain a battery cell; taking out a diaphragm from the battery cell for later use, and pyrolyzing the battery cell to obtain electrode powder; extracting nickel, cobalt and manganese elements from the electrode powder with an extraction buffer, filtering, taking the filtrate, then adjusting the filtrate with a nickel solution, a cobalt solution and a manganese solution to obtain a solution A, adding the solution A dropwise into ammonium hydroxide under stirring, and then adding an alkali solution under stirring to obtain a solution B; subjecting the solution B to a hydrothermal reaction, filtering, and roasting to obtain a catalyst, such that a chemical formula of the catalyst is Ni2+1-x-yCo2+xMn2+yO, where 0.25?x<0.45, 0.25?y<0.45.

Abstract: Disclosed is a method for anaerobically cracking a power battery, which includes the following steps: disassembling a waste power battery to obtain a battery cell; taking out a diaphragm from the battery cell for later use, and pyrolyzing the battery cell to obtain electrode powder; extracting nickel, cobalt and manganese elements from the electrode powder with an extraction buffer, filtering, taking the filtrate, then adjusting the filtrate with a nickel solution, a cobalt solution and a manganese solution to obtain a solution A, adding the solution A dropwise into ammonium hydroxide under stirring, and then adding an alkali solution under stirring to obtain a solution B; subjecting the solution B to a hydrothermal reaction, filtering, and roasting to obtain a catalyst, such that a chemical formula of the catalyst is Ni2+1-x-yCo2+xMn2+yO, where 0.25?x<0.45, 0.25?y<0.45.

Abstract: Disclosed is a method for purification and lattice reconstruction of graphite in a power battery, which includes the following steps: subjecting a waste power battery to discharging, coarse breaking, pyrolysis, fine breaking and sorting sequentially to obtain electrode material powder; mixing the electrode material powder with a metal extractant, standing still, then washing with a purifying agent A, filtering to obtain a filter residue A, mixing the filter residue A with the metal extractant, standing still, then washing with a purifying agent B, and filtering to obtain a crude graphite; subjecting the crude graphite to the de-organic treatment, cooling, ball milling, and ventilation replacement to obtain a primary purified graphite; and introducing a rare gas into a primary purified graphite to repair the graphite lattice.