CN114497502A - Preparation method of lithium battery negative electrode material - Google Patents
Preparation method of lithium battery negative electrode material Download PDFInfo
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- CN114497502A CN114497502A CN202210099651.5A CN202210099651A CN114497502A CN 114497502 A CN114497502 A CN 114497502A CN 202210099651 A CN202210099651 A CN 202210099651A CN 114497502 A CN114497502 A CN 114497502A
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 47
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000007773 negative electrode material Substances 0.000 title claims description 27
- 239000000463 material Substances 0.000 claims abstract description 108
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000007787 solid Substances 0.000 claims abstract description 28
- 239000010406 cathode material Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011259 mixed solution Substances 0.000 claims abstract description 6
- 229920002472 Starch Polymers 0.000 claims abstract description 5
- DGEZNRSVGBDHLK-UHFFFAOYSA-N [1,10]phenanthroline Chemical compound C1=CN=C2C3=NC=CC=C3C=CC2=C1 DGEZNRSVGBDHLK-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229930002877 anthocyanin Natural products 0.000 claims abstract description 5
- 235000010208 anthocyanin Nutrition 0.000 claims abstract description 5
- 239000004410 anthocyanin Substances 0.000 claims abstract description 5
- 150000004636 anthocyanins Chemical class 0.000 claims abstract description 5
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000001704 evaporation Methods 0.000 claims abstract description 5
- FUUFMJYYMRCJSY-UHFFFAOYSA-H oxalate;ytterbium(3+);decahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.[Yb+3].[Yb+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O FUUFMJYYMRCJSY-UHFFFAOYSA-H 0.000 claims abstract description 5
- 235000019698 starch Nutrition 0.000 claims abstract description 5
- 239000008107 starch Substances 0.000 claims abstract description 5
- AIQRTHPXPDTMBQ-UHFFFAOYSA-K yttrium(3+);triacetate;tetrahydrate Chemical compound O.O.O.O.[Y+3].CC([O-])=O.CC([O-])=O.CC([O-])=O AIQRTHPXPDTMBQ-UHFFFAOYSA-K 0.000 claims abstract description 5
- 239000002245 particle Substances 0.000 claims description 55
- 230000007246 mechanism Effects 0.000 claims description 20
- 238000009826 distribution Methods 0.000 claims description 17
- 230000005484 gravity Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000007873 sieving Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000010405 anode material Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000012216 screening Methods 0.000 abstract description 14
- 239000013618 particulate matter Substances 0.000 description 9
- 230000007306 turnover Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 239000011343 solid material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 150000002641 lithium Chemical class 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/24—Driving mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention belongs to the technical field of energy materials, and particularly relates to a preparation method of a lithium battery cathode material, which comprises the following specific steps: adding 3-5 parts by weight of yttrium acetate tetrahydrate, 3-5 parts by weight of ytterbium oxalate decahydrate, 3-5 parts by weight of diethylamine, 1-3 parts by weight of 1, 10-phenanthroline, 3-5 parts by weight of carbon powder, 1-3 parts by weight of starch and 1-3 parts by weight of anthocyanin into 100ml of deionized water, heating to 190 ℃ at 180 ℃ in a reaction kettle, maintaining for 5-6 hours, and cooling to 50 ℃; pouring the mixed solution into a crucible, evaporating water to dryness under normal pressure, placing the obtained solid in a muffle furnace, heating to 600-650 ℃, maintaining for 10-12 hours, and cooling; and (3) putting the solid into a ball mill from a feed inlet for crushing. In the invention, the solid raw materials are crushed by the ball mill, and simultaneously, the screening process of the battery cathode material is directly completed, thereby simplifying the process and improving the preparation efficiency.
Description
Technical Field
The invention relates to the technical field of energy materials, in particular to a preparation method of a lithium battery cathode material.
Background
Fossil energy accounts for a large proportion of the energy currently mainly used by people, and the excessive consumption of such energy causes serious environmental problems. In the development and utilization of new energy sources such as solar energy, geothermal energy, wind energy and the like, the problem of energy storage becomes a very critical step. Lithium ion batteries have become a focus of attention due to their high energy density and power density, as well as their good safety performance. The electrode material is used as a key part of the lithium ion battery, and the cost of the electrode material accounts for more than 50% of the whole battery. Graphite is a commonly used negative electrode material for commercial lithium ion batteries.
In the preparation process of the battery negative electrode material, required raw materials are mixed according to a proportion and are subjected to high-temperature mixing, then the mixed solution is poured into a crucible, the moisture is evaporated to dryness to obtain the solid of the negative electrode material, then the solid material is crushed by a ball mill to obtain particles with required diameters, and then the lithium battery negative electrode material can be prepared.
Disclosure of Invention
Based on the technical problem that the existing preparation method of the negative electrode material is complex in process, the invention provides a preparation method of a negative electrode material of a lithium battery.
The invention provides a preparation method of a lithium battery cathode material, which comprises the following specific steps:
adding 3-5 parts by weight of yttrium acetate tetrahydrate, 3-5 parts by weight of ytterbium oxalate decahydrate, 3-5 parts by weight of diethylamine, 1-3 parts by weight of 1, 10-phenanthroline, 3-5 parts by weight of carbon powder, 1-3 parts by weight of starch and 1-3 parts by weight of anthocyanin into 100ml of deionized water, heating to 190 ℃ at 180 ℃ in a reaction kettle, maintaining for 5-6 hours, and cooling to 50 ℃;
pouring the mixed solution into a crucible, evaporating water to dryness under normal pressure, placing the obtained solid in a muffle furnace, heating to 600-650 ℃, maintaining for 10-12 hours, and cooling;
putting the solid into a ball mill from a feeding hole for crushing, starting a motor, reducing the speed of an output shaft of the motor through a reduction gearbox to drive a connecting shaft and a gear to rotate, meshing the gear to drive a gear ring and a roller to rotate, turning impact balls and solid raw materials in the roller to a height-making point through a material turning rod, and crushing the materials due to gravity falling, so that the particles crushed into 120-plus-150 nm particles fall from a discharge orifice to obtain a lithium battery cathode material;
simultaneously, the rotation of connecting axle, the second band pulley of synchronous drive rotates, then through the transmission cooperation of belt and first band pulley, drive first axostylus axostyle, loop bar and first magnet rotate, when first magnet and second magnet are close to each other, magnetic repulsion between the two is crescent, then make the sieve follow the guide block and slide along the guide way together, because the action of gravity after sliding to the peak, the reverse slip, thereby form the relative motion of sieve and particulate matter, thereby sieve with higher speed, sieve the granule that will be less than 120nm, can accomplish the screening process to lithium cell negative pole material in step.
Preferably, the ball mill includes the support frame of two symmetric distributions, the support frame endotheca is established and is connected with the hollow shaft through the bearing rotation, the inboard welded fastening of hollow shaft has the side seal board, there is same cylinder through the bolt fastening between two side seal boards, one of them side seal board one side is run through and is seted up the feed inlet, cylinder circumference outer wall runs through the bin outlet of seting up multiunit ring array distribution, there are two anchor bars that are both ends symmetric distribution through the bolt fastening between two support frames, the support frame inboard has the deflector through the bolt fastening, the cross-section is curved guide way has been seted up to the deflector inboard, sliding connection has the guide block of two symmetric distributions in the guide way, there is same sieve through the bolt fastening between a plurality of guide blocks, the sieve both ends all are equipped with the flange, be provided with actuating mechanism on the anchor bar, the last drive mechanism that is connected with of actuating mechanism.
Preferably, actuating mechanism includes the fixing base, the fixing base passes through the bolt fastening in the top of one of them anchor strut, fixing base top welded fastening has two symmetric distribution's fixed plate, it is connected with same connecting axle to rotate through the bearing between two fixed plates, the cover is established and is fixed with the gear on the connecting axle, the cover is established and is fixed with the ring gear on the cylinder, the ring gear is connected with gear engagement, the gear sets up between two fixed plates, the fixing base top is through bolt fastening has reducing gear box and support, the support top has the motor through the bolt fastening, the reducing gear box is connected between connecting axle and motor output shaft.
Preferably, drive mechanism includes the second band pulley, and the second belt pulley cover is established and is fixed in on the connecting axle, and the support frame front end has the fixed block through the bolt fastening, is connected with same first axostylus axostyle through the bearing rotation between two fixed blocks, and the cover is established and is fixed with the loop bar of first band pulley and two symmetric distributions on the first axostylus axostyle, and the cover is equipped with same belt between first band pulley and the second band pulley, and the loop bar bottom bonds and is fixed with first magnet, and the front end of sieve internal surface bonds and is fixed with the second magnet of two symmetric distributions.
Preferably, the inner walls of the two ends of the guide groove are both fixed with first springs through bolts, and the inner end faces of the first springs are fixed with collided blocks through bolts.
Preferably, the inner wall welding of cylinder circumference has a plurality of annular array distribution's feed rod, and the feed rod sets up in the one side that is close to the feed inlet, and the feed rod is the heliciform.
Preferably, a plurality of material turning rods distributed in an annular array are welded and fixed on the inner wall of the circumference of the roller, the material turning rods are parallel to the roller in the axial direction, and the material turning rods are arranged on one side far away from the feeding hole.
Preferably, the cambered surface has the lug through the bolt fastening in the deflector, has same second axostylus axostyle through the bolt fastening between two lugs, and second axostylus axostyle circumference outer wall is provided with the material turning over board that a plurality of annular arrays distribute.
Preferably, the material turning plate cross-section sets up the herringbone, and the material turning plate is made by steel, and material turning plate and second shaft lever welded fastening have same mounting panel between the material turning plate both ends inner wall, and the movable mouthful has been seted up at the mounting panel top, is provided with the brush in the movable mouthful, and mounting panel top both ends all have the frid through bolted fastening, and sliding connection has the guide block in the frid, has same second spring through bolted fastening between guide block and the frid inner wall, passes through the bolted fastening between guide block and the brush.
Preferably, the cross-section of the material turning plate is shaped like a Chinese character 'ji', the material turning plate is made of a silica gel material, the material turning plate and the second shaft rod are fixedly bonded, a cavity is formed in the material turning plate, the wall thickness of the material turning plate is gradually reduced from top to bottom, densely distributed convex particles are arranged at the bottom of the material turning plate, the convex particles and the material turning plate are of an integrated structure, and densely distributed vent holes are formed in two sides of the bottom of the material turning plate.
Compared with the prior art, the invention provides a preparation method of a lithium battery anode material, which has the following beneficial effects:
1. the preparation method of the lithium battery cathode material comprises the steps that an output shaft of a motor is decelerated through a reduction box to drive a connecting shaft and a gear to rotate, the gear is meshed to drive a toothed ring and a roller to rotate, an impact ball and a solid raw material in the roller are turned to a high point through a material turning rod, the impact ball and the solid raw material fall due to gravity to be crushed, particles which are crushed into 120-plus 150nm particles fall from a material discharging orifice to obtain the lithium battery cathode material, meanwhile, the connecting shaft rotates to synchronously drive a second belt wheel to rotate, then, a first shaft rod, a sleeve rod and a first magnet are driven to rotate through transmission matching of a belt and the first belt wheel, when the first magnet and the second magnet are close to each other, magnetic repulsion force between the first magnet and the second magnet is gradually increased, then, a sieve plate slides along a guide groove at the highest point along with a guide block, and reversely slides due to the action of gravity after sliding to form relative movement of the sieve plate and the particles, therefore, the screening is accelerated, and the particles smaller than 120nm are screened out, so that the screening process of the lithium battery cathode material can be synchronously completed.
2. According to the preparation method of the lithium battery cathode material, when the guide block and the collided block are collided, the overall speed of the sieve plate is suddenly reduced, but the particles on the sieve plate still have high speed due to inertia, so that the particles can move relative to the sieve plate, the sieving process is further accelerated, and meanwhile, after the collided block is collided, the first spring is extruded to buffer, so that the noise and the loss are reduced.
3. This lithium battery cathode material preparation method, the feed rod is the heliciform, can be at the pivoted in-process, the solid material that gets into to the feed inlet has propulsive effect, thereby prevent that the material from forming the part and piling up, can make this ball mill carry out the work of continuous feeding, and the production efficiency is improved, the feed rod cross-section sets up M shape, can improve the propulsive effect to solid raw materials, the axial direction parallel of stirring rod and cylinder simultaneously, keep the impact ball at same circumference internal rotation, thereby prevent that the impact ball from gathering together, stirring rod cross-section sets up M shape, can receive the striking back of impact ball as solid raw materials, can prevent effectively that the raw materials from sliding to both ends, thereby crushing efficiency with higher speed.
4. This lithium battery negative electrode material preparation method, when the sieve reciprocal swing, the particulate matter of piling up on the sieve drives the material turning over board and rotates round the second shaft pole, the brush receives centrifugal force, follow the guide block together, the downstream, then contact with the sieve, thereby utilize the brush to clean the mesh on the sieve, with higher speed the screening of powdered tiny particle, prevent that the mesh from blockking up, the material turning over board cross-section sets up into the chevron shape, can be when the sieve reciprocal swing, can both form great resistance to the particulate matter, thereby improve the whole rotational speed of material turning over board, it has certain gap simultaneously to reset in the middle of the material turning over board of chevron shape, when the particulate matter passes through from material turning over board below, the particulate matter receives to have nimble movable region after the extrusion, avoid causing the card of material turning over board to stop.
5. The preparation method of the lithium battery cathode material comprises the steps that when a sieve plate swings in a reciprocating mode, a material turning plate is pushed by particles accumulated on the sieve plate and deforms, the bottom of the material turning plate bends downwards to deform, protruding particles are contacted with the sieve plate, the protruding particles are used for cleaning meshes on the sieve plate, the screening of small powdered particles is accelerated, the meshes are prevented from being blocked, meanwhile, after the material turning plate is pressed and extruded, gas in a cavity is compressed, air is blown downwards through an air vent to blow the meshes, the cleaning effect of powder is further improved, the cross section of the material turning plate is in the shape of a Chinese character 'ren', large resistance can be formed on the particles when the sieve plate swings in the reciprocating mode, the integral rotating speed of the material turning plate is improved, meanwhile, a certain gap is formed in the middle of the lambdoidal material turning plate in a resetting mode, when the particles pass under the material turning plate, the particulate matter receives to have nimble active area after the extrusion, avoids causing the card of material turning plate to stop, and material turning plate is made by silica gel material simultaneously, when the hindrance to the particulate matter is great, can take place deformation to further prevent the emergence that the card stopped the phenomenon.
Drawings
FIG. 1 is a schematic view of the overall structure of a ball mill in the method for preparing a lithium battery negative electrode material according to the present invention;
FIG. 2 is an enlarged schematic structural diagram of a point A in the method for preparing a negative electrode material of a lithium battery according to the present invention;
FIG. 3 is a schematic structural diagram of a sieve plate in the method for preparing a negative electrode material of a lithium battery according to the present invention;
FIG. 4 is a schematic diagram of a guide plate structure in a method for preparing a negative electrode material of a lithium battery according to the present invention;
FIG. 5 is a schematic structural diagram of a material turning plate in the preparation method of the negative electrode material for the lithium battery provided by the invention;
FIG. 6 is an enlarged schematic structural diagram of a position B in the method for preparing a negative electrode material for a lithium battery according to the present invention;
FIG. 7 is a schematic view of the bottom structure of a material turning plate in the method for preparing a negative electrode material of a lithium battery according to the present invention;
fig. 8 is a schematic structural diagram of a roller in the method for preparing a negative electrode material of a lithium battery according to the present invention.
In the figure: 1. a support frame; 2. a reinforcing rod; 3. a tubular shaft; 4. a side sealing plate; 5. a drum; 6. a toothed ring; 7. a guide plate; 8. a guide groove; 9. a guide block; 10. a sieve plate; 11. blocking edges; 12. a fixed seat; 13. a fixing plate; 14. a connecting shaft; 15. a gear; 16. a support; 17. a motor; 18. a reduction gearbox; 19. a fixed block; 20. a first shaft lever; 21. a first pulley; 22. a second pulley; 23. a belt; 24. a loop bar; 25. a first magnet; 26. a second magnet; 27. a first spring; 28. a collided block; 29. an ear piece; 30. a second shaft lever; 31. a material turning plate; 32. mounting a plate; 33. a movable opening; 34. a brush; 35. a groove plate; 36. a guide block; 37. a second spring; 38. convex particles; 39. a vent; 40. a feed rod; 41. and (5) a material turning rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example 1
Referring to fig. 1 to 6 and 8, a method for preparing a negative electrode material for a lithium battery includes the following steps:
adding 3 parts by weight of yttrium acetate tetrahydrate, 3 parts by weight of ytterbium oxalate decahydrate, 3 parts by weight of diethylamine, 1 part by weight of 1, 10-phenanthroline, 3 parts by weight of carbon powder, 1 part by weight of starch and 1 part by weight of anthocyanin into 100ml of deionized water, heating to 180 ℃ in a reaction kettle, maintaining for 5 hours, and cooling to 50 ℃;
pouring the mixed solution into a crucible, evaporating water to dryness under normal pressure, placing the obtained solid in a muffle furnace, heating to 600 ℃, maintaining for 10 hours, and cooling;
putting the solid into a ball mill from a feeding hole for crushing, starting a motor 17, reducing the speed of an output shaft of the motor 17 through a reduction box 18 to drive a connecting shaft 14 and a gear 15 to rotate, meshing the gear 15 to drive a toothed ring 6 and a roller 5 to rotate, turning impact balls and solid raw materials in the roller 5 to a high-point through a material turning rod 41, crushing the materials due to gravity falling, and enabling the crushed particles with the particle size of 120 plus 150nm to fall from a discharge orifice to obtain a lithium battery cathode material;
meanwhile, the rotation of the connecting shaft 14 synchronously drives the second belt wheel 22 to rotate, and then the belt 23 is in transmission fit with the first belt wheel 21 to drive the first shaft rod 20, the loop rod 24 and the first magnet 25 to rotate, when the first magnet 25 and the second magnet 26 are close to each other, the magnetic repulsion between the first magnet 25 and the second magnet is gradually increased, so that the sieve plate 10 slides along the guide groove 8 along with the guide block 9, and slides in the opposite direction due to the action of gravity after sliding to the highest point, so that the relative movement between the sieve plate 10 and particles is formed, the sieving is accelerated, the particles smaller than 120nm are sieved, and the sieving process of the lithium battery material can be synchronously completed.
Further, the ball mill comprises two support frames 1 which are symmetrically distributed, a tubular shaft 3 is sleeved in the support frames 1 and is rotatably connected through a bearing, side seal plates 4 are welded and fixed on the inner sides of the tubular shaft 3, the same roller 5 is fixed between the two side seal plates 4 through bolts, a feed inlet is formed in one side of one side seal plate 4, a plurality of groups of discharge outlets distributed in an annular array are formed in the circumferential outer wall of the roller 5 in a penetrating manner, two reinforcing rods 2 which are symmetrically distributed at two ends are fixed between the two support frames 1 through bolts, a guide plate 7 is fixed on the inner side of each support frame 1 through bolts, a guide groove 8 with an arc-shaped cross section is formed in the inner side of each guide plate 7, two guide blocks 9 which are symmetrically distributed are connected in a sliding manner in the guide groove 8, the same sieve plate 10 is fixed between the plurality of guide blocks 9 through bolts, blocking edges 11 are arranged at two ends of the sieve plate 10, and a driving mechanism is arranged on each reinforcing rod 2, the driving mechanism is connected with a transmission mechanism.
Further, actuating mechanism includes fixing base 12, fixing base 12 passes through the bolt fastening in the top of one of them anchor strut 2, fixing base 12 top welded fastening has two symmetric distribution's fixed plate 13, it is connected with same connecting axle 14 to rotate through the bearing between two fixed plates 13, the cover is established and is fixed with gear 15 on the connecting axle 14, the cover is established and is fixed with ring gear 6 on the cylinder 5, ring gear 6 and gear 15 meshing are connected, gear 15 sets up between two fixed plates 13, fixing base 12 top has reducing gear box 18 and support 16 through the bolt fastening, there is motor 17 at the support 16 top through the bolt fastening, reducing gear box 18 is connected between connecting axle 14 and motor 17 output shaft.
Further, drive mechanism includes second band pulley 22, second band pulley 22 cover is established and is fixed in on connecting axle 14, there is fixed block 19 at the support frame 1 front end through the bolt fastening, be connected with same first axle pole 20 through the bearing rotation between two fixed blocks 19, the loop bar 24 that is fixed with first band pulley 21 and two symmetric distributions is established to the cover on the first axle pole 20, the cover is equipped with same belt 23 between first band pulley 21 and the second band pulley 22, loop bar 24 bottom bonding fixation has first magnet 25, the front end bonding fixation of sieve 10 internal surface has the second magnet 26 of two symmetric distributions.
Further, the inner walls of the two ends of the guide groove 8 are both fixed with a first spring 27 through bolts, and the inner end surface of the first spring 27 is fixed with a collided block 28 through bolts.
Further, the inner wall welding of 5 circumferences of cylinder has a plurality of annular array distribution's feed rod 40, and feed rod 40 sets up in the one side that is close to the feed inlet, and feed rod 40 is the heliciform.
Further, a plurality of material turning rods 41 distributed in an annular array are fixed on the inner wall of the circumference of the roller 5 in a welding mode, the material turning rods 41 are axially parallel to the roller 5, the material turning rods 41 are arranged on one side far away from a feeding hole, and the cross sections of the material feeding rods 40 and the material turning rods 41 are arranged in an M shape.
Furthermore, lugs 29 are fixed on the inner arc surface of the guide plate 7 through bolts, a same second shaft rod 30 is fixed between the two lugs 29 through bolts, and a plurality of material stirring plates 31 distributed in an annular array are arranged on the outer circumferential wall of the second shaft rod 30.
Furthermore, the cross section of the material turning plate 31 is in a herringbone shape, the material turning plate 31 is made of steel materials, the material turning plate 31 and the second shaft rod 30 are fixedly welded, the same mounting plate 32 is fixedly welded between the inner walls of the two ends of the material turning plate 31, a movable opening 33 is formed in the top of the mounting plate 32, a brush 34 is arranged in the movable opening 33, groove plates 35 are fixedly arranged at the two ends of the top of the mounting plate 32 through bolts, guide blocks 36 are slidably connected in the groove plates 35, the same second spring 37 is fixedly arranged between the guide blocks 36 and the inner walls of the groove plates 35 through bolts, and the guide blocks 36 and the brush 34 are fixedly arranged through bolts.
The working principle is as follows: when in use, solid is thrown into the ball mill from the feed inlet for crushing, the motor 17 is started, the output shaft of the motor 17 is decelerated through the reduction box 18 to drive the connecting shaft 14 and the gear 15 to rotate, the gear 15 is meshed to drive the gear ring 6 and the roller 5 to rotate, the impact ball and the solid raw material in the roller 5 are turned to a high point through the turning rod 41, the particles crushed into 120 plus 150nm fall from a discharge orifice due to gravity falling for crushing to obtain the lithium battery cathode material, meanwhile, the connecting shaft 14 rotates to synchronously drive the second belt wheel 22 to rotate, then the first shaft rod 20, the loop rod 24 and the first magnet 25 are driven to rotate through the transmission fit of the belt 23 and the first belt wheel 21, when the first magnet 25 and the second magnet 26 approach each other, the magnetic repulsion between the two is gradually increased, and then the sieve plate 10 slides along the guide groove 8 along with the guide block 9, after sliding to the highest point, the screen plate 10 and the particles slide reversely due to the action of gravity, so that relative motion of the screen plate 10 and the particles is formed, so that screening is accelerated, the particles smaller than 120nm are screened out, the screening process of the lithium battery cathode material can be synchronously completed, further, when the guide block 9 and the collided block 28 collide, the overall speed of the screen plate 10 is suddenly reduced, but the particles on the screen plate 10 still have higher speed due to inertia, so that the particles and the screen plate 10 can move relatively, so that the screening process is further accelerated, meanwhile, after the collided block 28 is collided, the first spring 27 is extruded to be buffered, so that noise and loss are reduced, further, the feeding rod 40 is arranged, the feeding rod 40 is spiral, so that the solid materials entering the feeding hole can be propelled in the rotating process, so that the materials are prevented from forming local accumulation, can make this ball mill carry out the work of continuous feeding, improve production efficiency, the feeding rod 40 cross-section sets up to M shape, can improve the propulsion effect to solid raw materials, turn over material pole 41 and the axial direction parallel of cylinder 5 simultaneously, keep striking ball at same circumference internal rotation, thereby prevent that striking ball from gathering together, turn over material pole 41 cross-section and set up to M shape, can receive the striking back of striking ball when solid raw materials, can effectively prevent the raw materials to slide to both ends, thereby crushing efficiency with higher speed, furthermore, when sieve 10 reciprocal swing, the particulate matter of piling up on sieve 10 drives turn over material board 31 and rotates round second axostylus axostyle 30, brush 34 receives centrifugal force, follow guide block 36 together, the downstream, then contact with sieve 10, thereby utilize brush 34 to clean the mesh on sieve 10, accelerate the screening of powdered tiny granule, prevent the mesh, the cross section of the material turning plate 31 is arranged in a herringbone shape, so that when the sieve plate 10 swings in a reciprocating mode, large resistance can be formed on particles, the integral rotating speed of the material turning plate 31 is improved, meanwhile, a certain gap is formed in the middle of the herringbone material turning plate 31 in a resetting mode, when the particles pass through the lower portion of the material turning plate 31, the particles are extruded and then have flexible moving areas, and the material turning plate 31 is prevented from being clamped and stopped.
Example 2
Referring to fig. 1 to 5 and fig. 7 to 8, a method for preparing a negative electrode material for a lithium battery includes the following steps:
adding 3 parts by weight of yttrium acetate tetrahydrate, 3 parts by weight of ytterbium oxalate decahydrate, 3 parts by weight of diethylamine, 1 part by weight of 1, 10-phenanthroline, 3 parts by weight of carbon powder, 1 part by weight of starch and 1 part by weight of anthocyanin into 100ml of deionized water, heating to 180 ℃ in a reaction kettle, maintaining for 5 hours, and cooling to 50 ℃;
pouring the mixed solution into a crucible, evaporating water to dryness under normal pressure, placing the obtained solid in a muffle furnace, heating to 600 ℃, maintaining for 10 hours, and cooling;
putting the solid into a ball mill from a feeding hole for crushing, starting a motor 17, reducing the speed of an output shaft of the motor 17 through a reduction box 18 to drive a connecting shaft 14 and a gear 15 to rotate, meshing the gear 15 to drive a toothed ring 6 and a roller 5 to rotate, turning impact balls and solid raw materials in the roller 5 to a high-point through a material turning rod 41, crushing the materials due to gravity falling, and enabling the crushed particles with the particle size of 120 plus 150nm to fall from a discharge orifice to obtain a lithium battery cathode material;
meanwhile, the rotation of the connecting shaft 14 synchronously drives the second belt wheel 22 to rotate, then the belt 23 is in transmission fit with the first belt wheel 21 to drive the first shaft rod 20, the loop rod 24 and the first magnet 25 to rotate, when the first magnet 25 and the second magnet 26 are close to each other, the magnetic repulsion between the first magnet 25 and the second magnet is gradually increased, then the sieve plate 10 slides along the guide groove 8 along with the guide block 9, and slides in the opposite direction due to the action of gravity after sliding to the highest point, so that the relative motion between the sieve plate 10 and particles is formed, so that the sieving is accelerated, the particles smaller than 120nm are sieved, and the sieving process of the lithium battery cathode material can be synchronously completed.
Further, the ball mill comprises two support frames 1 which are symmetrically distributed, a tubular shaft 3 is sleeved in the support frames 1 and is rotatably connected through a bearing, side seal plates 4 are welded and fixed on the inner sides of the tubular shaft 3, the same roller 5 is fixed between the two side seal plates 4 through bolts, a feed inlet is formed in one side of one side seal plate 4, a plurality of groups of discharge outlets distributed in an annular array are formed in the circumferential outer wall of the roller 5 in a penetrating manner, two reinforcing rods 2 which are symmetrically distributed at two ends are fixed between the two support frames 1 through bolts, a guide plate 7 is fixed on the inner side of each support frame 1 through bolts, a guide groove 8 with an arc-shaped cross section is formed in the inner side of each guide plate 7, two guide blocks 9 which are symmetrically distributed are connected in a sliding manner in the guide groove 8, the same sieve plate 10 is fixed between the plurality of guide blocks 9 through bolts, blocking edges 11 are arranged at two ends of the sieve plate 10, and a driving mechanism is arranged on each reinforcing rod 2, the driving mechanism is connected with a transmission mechanism.
Further, actuating mechanism includes fixing base 12, fixing base 12 passes through the bolt fastening in the top of one of them anchor strut 2, fixing base 12 top welded fastening has two symmetric distribution's fixed plate 13, it is connected with same connecting axle 14 to rotate through the bearing between two fixed plates 13, the cover is established and is fixed with gear 15 on the connecting axle 14, the cover is established and is fixed with ring gear 6 on the cylinder 5, ring gear 6 and gear 15 meshing are connected, gear 15 sets up between two fixed plates 13, fixing base 12 top has reducing gear box 18 and support 16 through the bolt fastening, there is motor 17 at the support 16 top through the bolt fastening, reducing gear box 18 is connected between connecting axle 14 and motor 17 output shaft.
Further, drive mechanism includes second band pulley 22, second band pulley 22 cover is established and is fixed in on connecting axle 14, there is fixed block 19 at the support frame 1 front end through the bolt fastening, be connected with same first axle pole 20 through the bearing rotation between two fixed blocks 19, the loop bar 24 that is fixed with first band pulley 21 and two symmetric distributions is established to the cover on the first axle pole 20, the cover is equipped with same belt 23 between first band pulley 21 and the second band pulley 22, loop bar 24 bottom bonding fixation has first magnet 25, the front end bonding fixation of sieve 10 internal surface has the second magnet 26 of two symmetric distributions.
Further, the inner walls of the two ends of the guide groove 8 are both fixed with a first spring 27 through bolts, and the inner end surface of the first spring 27 is fixed with a collided block 28 through bolts.
Further, the inner wall welding of 5 circumferences of cylinder has a plurality of annular array distribution's feed rod 40, and feed rod 40 sets up in the one side that is close to the feed inlet, and feed rod 40 is the heliciform.
Furthermore, a plurality of material turning rods 41 distributed in an annular array are welded and fixed on the inner wall of the circumference of the roller 5, the material turning rods 41 are parallel to the axial direction of the roller 5, and the material turning rods 41 are arranged on one side far away from the feeding hole.
Furthermore, lugs 29 are fixed on the inner cambered surface of the guide plate 7 through bolts, a same second shaft rod 30 is fixed between the two lugs 29 through bolts, and a plurality of material stirring plates 31 distributed in an annular array mode are arranged on the outer circumferential wall of the second shaft rod 30.
Furthermore, the section of the material turning plate 31 is shaped like a Chinese character 'ren', the material turning plate 31 is made of a silica gel material, the material turning plate 31 and the second shaft rod 30 are fixedly bonded, a cavity is formed in the material turning plate 31, the wall thickness of the material turning plate 31 is gradually reduced from top to bottom, densely distributed convex particles 38 are arranged at the bottom of the material turning plate 31, the convex particles 38 and the material turning plate 31 are of an integral structure, and air vents 39 which are densely distributed are formed in two sides of the bottom of the material turning plate 31.
The working principle is as follows: when in use, solid is thrown into the ball mill from the feed inlet for crushing, the motor 17 is started, the output shaft of the motor 17 is decelerated through the reduction box 18 to drive the connecting shaft 14 and the gear 15 to rotate, the gear 15 is meshed to drive the gear ring 6 and the roller 5 to rotate, the impact ball and the solid raw material in the roller 5 are turned to a high point through the turning rod 41, the particles crushed into 120 plus 150nm fall from a discharge orifice due to gravity falling for crushing to obtain the lithium battery cathode material, meanwhile, the connecting shaft 14 rotates to synchronously drive the second belt wheel 22 to rotate, then the first shaft rod 20, the loop rod 24 and the first magnet 25 are driven to rotate through the transmission fit of the belt 23 and the first belt wheel 21, when the first magnet 25 and the second magnet 26 approach each other, the magnetic repulsion between the two is gradually increased, and then the sieve plate 10 slides along the guide groove 8 along with the guide block 9, after sliding to the highest point, the screen plate 10 and the particles slide reversely due to the action of gravity, so that relative motion of the screen plate 10 and the particles is formed, so that screening is accelerated, the particles smaller than 120nm are screened out, the screening process of the lithium battery cathode material can be synchronously completed, further, when the guide block 9 and the collided block 28 collide, the overall speed of the screen plate 10 is suddenly reduced, but the particles on the screen plate 10 still have higher speed due to inertia, so that the particles and the screen plate 10 can move relatively, so that the screening process is further accelerated, meanwhile, after the collided block 28 is collided, the first spring 27 is extruded to be buffered, so that noise and loss are reduced, further, the feeding rod 40 is arranged, the feeding rod 40 is spiral, so that the solid materials entering the feeding hole can be propelled in the rotating process, so that the materials are prevented from forming local accumulation, can make this ball mill carry out the work of continuous feeding, improve production efficiency, the feeding rod 40 cross-section sets up to M shape, can improve the propulsion effect to solid raw materials, turn over material pole 41 and the axial direction parallel of cylinder 5 simultaneously, keep striking ball at same circumference internal rotation, thereby prevent that striking ball from gathering together, turn over material pole 41 cross-section and set up to M shape, can effectively prevent raw materials to slide to both ends after solid raw materials receives the striking ball's striking, thereby crushing efficiency with higher speed, furthermore, when sieve 10 reciprocal swing, turn over material board 31 receives the pushing of piling up the particulate matter on sieve 10, take place the deformation, make the bottom of turn over material board 31 bending deformation downwards, then make protruding grain 38 and sieve 10 contact, thereby utilize protruding grain 38 to clean the mesh on sieve 10, accelerate the screening of powdery tiny granule, prevent the mesh, meanwhile, after the material turning plate 31 is pressed and extruded, gas in the cavity is compressed, downward air injection is carried out through the air vent 39, and meshes are swept, so that the cleaning effect on powder is further improved, the cross section of the material turning plate 31 is arranged in a herringbone shape, and large resistance can be formed on particles when the sieve plate 10 swings back and forth, so that the integral rotating speed of the material turning plate 31 is improved, meanwhile, a certain gap is formed in the middle of the herringbone material turning plate 31 in a resetting mode, when the particles pass through the lower portion of the material turning plate 31, flexible moving areas are formed after the particles are pressed, the blocking of the material turning plate 31 is avoided, meanwhile, the material turning plate 31 is made of silica gel materials, when the particles are blocked greatly, deformation can be carried out, and the blocking phenomenon is further prevented.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Claims (10)
1. A preparation method of a lithium battery negative electrode material is characterized by comprising the following specific steps:
adding 3-5 parts by weight of yttrium acetate tetrahydrate, 3-5 parts by weight of ytterbium oxalate decahydrate, 3-5 parts by weight of diethylamine, 1-3 parts by weight of 1, 10-phenanthroline, 3-5 parts by weight of carbon powder, 1-3 parts by weight of starch and 1-3 parts by weight of anthocyanin into 100ml of deionized water, heating to 190 ℃ at 180 ℃ in a reaction kettle, maintaining for 5-6 hours, and cooling to 50 ℃;
pouring the mixed solution into a crucible, evaporating water to dryness under normal pressure, placing the obtained solid in a muffle furnace, heating to 600-650 ℃, maintaining for 10-12 hours, and cooling;
putting solid into a ball mill from a feeding hole for crushing, starting a motor (17), reducing the speed of an output shaft of the motor (17) through a reduction box (18) to drive a connecting shaft (14) and a gear (15) to rotate, meshing the gear (15) to drive a gear ring (6) and a roller (5) to rotate, turning impact balls and solid raw materials in the roller (5) to a high-point through a material turning rod (41), and crushing the materials due to gravity falling to obtain particles of which the particle size is 150nm, and falling the particles from a material discharging orifice to obtain a lithium battery cathode material;
meanwhile, the second belt wheel (22) is synchronously driven to rotate by the rotation of the connecting shaft (14), and then the first shaft lever (20), the loop bar (24) and the first magnet (25) are driven to rotate through the transmission fit of the belt (23) and the first belt wheel (21), when the first magnet (25) and the second magnet (26) are close to each other, the magnetic repulsion between the first magnet and the second magnet is gradually increased, so that the sieve plate (10) slides along the guide groove (8) along with the guide block (9), and the sieve plate slides in the reverse direction under the action of gravity after sliding to the highest point, so that the relative movement of the sieve plate (10) and particles is formed, the sieve plate is accelerated to sieve out the particles smaller than 120nm, and the sieving process of the lithium battery cathode material can be synchronously completed.
2. The preparation method of the lithium battery cathode material according to claim 1, wherein the ball mill comprises two symmetrically distributed support frames (1), the support frames (1) are sleeved and rotatably connected with a tubular shaft (3), side sealing plates (4) are welded and fixed on the inner side of the tubular shaft (3), the same roller (5) is fixedly connected between the two side sealing plates (4), a feed inlet is formed in one side of one side sealing plate (4), a plurality of groups of discharge outlets distributed in an annular array are formed in the circumferential outer wall of the roller (5), two reinforcing rods (2) symmetrically distributed at two ends are fixedly connected between the two support frames (1), a guide plate (7) is fixedly connected on the inner side of each support frame (1), a guide groove (8) with an arc-shaped cross section is formed on the inner side of each guide plate (7), and two symmetrically distributed guide blocks (9) are slidably connected in each guide groove (8), the sieve plate (10) is fixedly connected among the guide blocks (9), flanges (11) are arranged at two ends of the sieve plate (10), a driving mechanism is arranged on the reinforcing rod (2), and a transmission mechanism is connected on the driving mechanism.
3. The method for preparing a negative electrode material for a lithium battery according to claim 2, actuating mechanism includes fixing base (12), fixing base (12) fixed connection is in the top of one of them anchor strut (2), fixing base (12) top welded fastening has fixed plate (13) of two symmetric distributions, it is connected with same connecting axle (14) to rotate between two fixed plate (13), the cover is established on connecting axle (14) and is fixed with gear (15), the cover is established on cylinder (5) and is fixed with ring gear (6), ring gear (6) and gear (15) meshing are connected, gear (15) set up between two fixed plate (13), fixing base (12) top fixedly connected with reducing gear box (18) and support (16), support (16) top fixedly connected with motor (17), reducing gear box (18) are connected between connecting axle (14) and motor (17) output shaft.
4. The preparation method of the lithium battery anode material according to claim 3, wherein the transmission mechanism comprises a second belt wheel (22), the second belt wheel (22) is sleeved and fixed on the connecting shaft (14), the front end of the support frame (1) is fixedly connected with a fixed block (19), the same first shaft rod (20) is rotatably connected between the two fixed blocks (19), the first belt wheel (21) and two symmetrically distributed loop bars (24) are sleeved and fixed on the first shaft rod (20), the same belt (23) is sleeved between the first belt wheel (21) and the second belt wheel (22), the bottom of the loop bar (24) is fixedly bonded with a first magnet (25), and the front end of the inner surface of the sieve plate (10) is fixedly bonded with two symmetrically distributed second magnets (26).
5. The method for preparing the negative electrode material of the lithium battery as claimed in claim 2, wherein the inner walls of both ends of the guide groove (8) are fixedly connected with a first spring (27), and the inner end surface of the first spring (27) is fixedly connected with a collided block (28).
6. The method for preparing the negative electrode material of the lithium battery as claimed in claim 2, wherein a plurality of feeding rods (40) are welded on the circumferential inner wall of the roller (5) and distributed in an annular array, the feeding rods (40) are arranged on one side close to the feeding hole, and the feeding rods (40) are helical.
7. The method for preparing the negative electrode material of the lithium battery as claimed in claim 2, wherein a plurality of material turning rods (41) distributed in an annular array are welded and fixed on the circumferential inner wall of the roller (5), the material turning rods (41) are axially parallel to the roller (5), and the material turning rods (41) are arranged on one side far away from the feeding hole.
8. The method for preparing the negative electrode material of the lithium battery as claimed in claim 2, wherein the guide plate (7) is fixedly connected with the lug blocks (29) at the inner cambered surface, the same second shaft lever (30) is fixedly connected between the two lug blocks (29), and the outer circumferential wall of the second shaft lever (30) is provided with a plurality of material turning plates (31) distributed in an annular array.
9. The preparation method of the negative electrode material for the lithium battery as claimed in claim 8, wherein the cross section of the material turning plate (31) is in a herringbone shape, the material turning plate (31) is made of steel, the material turning plate (31) and the second shaft rod (30) are welded and fixed, the same mounting plate (32) is welded and fixed between the inner walls of the two ends of the material turning plate (31), the movable opening (33) is formed in the top of the mounting plate (32), the brush (34) is arranged in the movable opening (33), the two ends of the top of the mounting plate (32) are both fixedly connected with the groove plate (35), the guide block (36) is slidably connected in the groove plate (35), the same second spring (37) is fixedly connected between the guide block (36) and the inner wall of the groove plate (35), and the guide block (36) and the brush (34) are fixedly connected.
10. The preparation method of the negative electrode material for the lithium battery as claimed in claim 8, wherein the material-turning plate (31) has a cross-section in a shape of a Chinese character 'ji', the material-turning plate (31) is made of a silicone material, the material-turning plate (31) is bonded and fixed to the second shaft rod (30), a cavity is formed in the material-turning plate (31), the wall thickness of the material-turning plate (31) is gradually reduced from top to bottom, the bottom of the material-turning plate (31) is provided with densely distributed convex particles (38), the convex particles (38) and the material-turning plate (31) are of an integral structure, and both sides of the bottom of the material-turning plate (31) are provided with densely distributed air vents (39).
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| CN202210099651.5A CN114497502A (en) | 2022-01-27 | 2022-01-27 | Preparation method of lithium battery negative electrode material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798143A (en) * | 2022-06-27 | 2022-07-29 | 广东顺悦金属制品有限公司 | Leftover material crushing device and method in furniture production and processing |
| CN115007278A (en) * | 2022-07-11 | 2022-09-06 | 湖南省新美达模具制造有限公司 | Electronic ceramic grinding body ball mill |
| CN118022951A (en) * | 2024-04-12 | 2024-05-14 | 陕西浦士达环保科技有限公司 | Silicon carbon negative electrode material processing grinder |
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2022
- 2022-01-27 CN CN202210099651.5A patent/CN114497502A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114798143A (en) * | 2022-06-27 | 2022-07-29 | 广东顺悦金属制品有限公司 | Leftover material crushing device and method in furniture production and processing |
| CN115007278A (en) * | 2022-07-11 | 2022-09-06 | 湖南省新美达模具制造有限公司 | Electronic ceramic grinding body ball mill |
| CN115007278B (en) * | 2022-07-11 | 2024-05-28 | 湖南省新美达模具制造有限公司 | Electronic ceramic grinding body ball mill |
| CN118022951A (en) * | 2024-04-12 | 2024-05-14 | 陕西浦士达环保科技有限公司 | Silicon carbon negative electrode material processing grinder |
| CN118022951B (en) * | 2024-04-12 | 2024-07-02 | 陕西浦士达环保科技有限公司 | Silicon carbon negative electrode material processing grinder |
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