CN212620158U

CN212620158U - Novel lithium ion battery cathode material graphitization device

Info

Publication number: CN212620158U
Application number: CN202021517277.9U
Authority: CN
Inventors: 赵永锋; 侯宾; 曹旭智; 吉鹏程
Original assignee: Inner Mongolia Xingfeng New Energy Technology Co ltd
Current assignee: Inner Mongolia Zichen Xingfeng New Energy Technology Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-02-26
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses a novel lithium ion battery cathode material graphitization device, including installing in the heating chamber on ground, lay in ground and pass the track of heating chamber, adjacent slidable mounting in a plurality of removal casees on the track are used for promoting the impeller that the removal case removed, equidistant install in the multiunit heating device of heating chamber lateral wall, and install in cooling device on the removal case. The utility model discloses can control the anodal on-time of transformer according to negative electrode material's attribute, and then the graphitization time in the control heating cabinet reaches the purpose of adjusting production speed according to negative electrode material attribute.

Description

Novel lithium ion battery cathode material graphitization device

Technical Field

The utility model relates to a graphitizing furnace technical field, specific saying relates to a novel lithium ion battery negative electrode material graphitization device.

Background

With the key deployment of national energy, lithium ion batteries increasingly play an important role, the demand of lithium ion battery cathode materials as the core component of the lithium ion batteries is increasing, and the problem of how to improve the capacity of the cathode materials, reduce the energy consumption and meet the production requirements of products with different specifications is a key solution. The graphitization of the lithium ion battery negative electrode material is the most complicated link in the whole negative electrode material production process, most graphitization manufacturers at the present stage mainly fill the negative electrode material into a crucible, arrange the crucible in an Acheson furnace, and heat up the crucible to about 3000 ℃ by power transmission to achieve the purpose of graphitization of the negative electrode material, the existing production mode of graphitization of the lithium ion battery negative electrode material is an intermittent production mode, usually 10-20 days are needed, a natural cooling method is adopted for cooling after the graphitization is finished, the cooling process is slow, a furnace body needs to be occupied for a long time, the production period is long, and the time is consumed; the production cycle of different materials is different when graphitizing, and the existing equipment can not adjust the production speed according to the material properties; the existing equipment has large electric energy consumption, the heat preservation material and the electric resistance material account for about 80% of the containing amount of the whole furnace chamber, most of electric energy is used for heating the crucible, the electric resistance material, the heat preservation material and the like, the electric energy utilization rate is low, the energy waste is caused, the production cost is high, and meanwhile, the heat efficiency is low.

SUMMERY OF THE UTILITY MODEL

For overcoming the problems existing in the prior art, the utility model provides a production cycle is short, can adjust production speed, low in production cost's novel lithium ion battery negative pole material graphitization device according to material attribute.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a novel lithium ion battery cathode material graphitization device, is including installing in the heating chamber on ground, lay in ground and pass the track of heating chamber, adjacent slidable mounting in a plurality of removal casees on the track are used for promoting the impeller that the removal case removed, equidistant install in the multiunit heating device of heating chamber lateral wall, and install in cooling device on the removal case.

Further, the heating chamber includes waiting area, heating area and the air cooling district that meets in proper order, wherein, waiting area is located the impeller side, the track is laid in waiting area, heating area and air cooling district bottom surface in proper order, heating device installs in the heating area lateral wall.

Specifically, a fan for ventilating and cooling is installed in the air cooling and cooling area.

Specifically, the mobile box includes the box, fill in heat preservation filler in the box, be located heat preservation filler middle heating cabinet, cover in the boxboard at heating cabinet top to and the symmetry is fixed in on the lateral wall of box both sides and pass two conducting electrode that heat preservation filler links to each other with the heating cabinet, wherein, conducting electrode links to each other with heating device, cooling device installs on the box, box slidable mounting is on the track.

Specifically, the heating device comprises a transformer anode and a transformer cathode which are symmetrically and slidably mounted on the side walls of the two sides of the heating area, and two lifters which are respectively used for pushing the transformer anode and the transformer cathode to be connected with the heating box.

Specifically, the heating box is made of graphitized products.

Specifically, the cooling device comprises a cooling interlayer attached to the peripheral side wall of the box body, and a liquid inlet and a liquid outlet which are respectively connected with the cooling interlayer.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model fills the negative material into the heating box, covers the box plate on the heating box, covers the heat preservation filler on the cover plate, opens the pusher, pushes the moving box to move forward, opens two pushers after the moving box moves to the heating area, pushes the transformer anode and the transformer cathode to be connected with the conductive electrode, and energizes the transformer anode, so that the current thereof sequentially passes through the transformer anode, the conductive electrode, the heating box, the conductive electrode and the transformer cathode, after the heating box is energized, the heating temperature is raised to heat the negative material inside the heating box, graphitize the negative material, after the graphitization is completed, the pushers release the pressure, so that the transformer anode and the transformer cathode are separated from the conductive electrode, opens the pusher, continuously pushes the next moving box, the moving box after the graphitization is pushed to the air cooling area, removes the heat preservation filler at the top of the moving box in the area and opens the box plate, and simultaneously, starting a fan to forcibly ventilate and cool the heating box, after the ventilation and cooling are carried out for a period of time, after the treatment of the last graphitized moving box is finished, continuously pushing the pusher forwards, continuously pushing the ventilated and cooled moving box forwards, then respectively connecting an external water inlet pipe and a water outlet pipe with the liquid inlet and the liquid outlet, introducing cooling liquid into the cooling interlayer, carrying out water cooling on the moving box, sucking out the cathode material through an external material sucking device after the cooling is finished, thereby finishing a treatment period, wherein the heating and graphitizing process can be continuously carried out, after the last treatment is finished, pushing the last treatment backwards to push the next heating in the heating area, and the whole treatment period is about 8-15 days, the heating speed is high, the processing period of the product is short, and the cooling speed is high.

(2) The utility model discloses can control the anodal on-time of transformer according to negative electrode material's attribute, and then the graphitization time in the control heating cabinet reaches the purpose of adjusting production speed according to negative electrode material attribute.

(3) The utility model discloses compare in current graphitizing furnace, it is provided with multiunit heating device at the thermal insulation area equidistance, only heats the heating cabinet, and it has the heat preservation filler to fill around the heating cabinet to make the heat scatter and disappear less, it is corresponding to heat the utensil, and electric energy utilization is high, has practiced thrift the energy, has reduced manufacturing cost, and the while makes the thermal efficiency high.

(4) The utility model discloses need not artifical the participation, it only needs to promote through the impeller, and it is unloaded and also can get through outside charging devices and inhale the material device dress, and the dress stove of current graphitizing furnace needs a large amount of manual works with going out of the stove, and degree of automation is low, and the operation danger coefficient is very big moreover, compares, the utility model discloses safety more, degree of automation is high, artifical intensity of labour is little.

(5) The utility model discloses can pass through forced air cooling earlier, pass through the water-cooling again, shorten the cooling cycle, improve production efficiency.

(6) The utility model discloses a high-quality carbon material can used repeatedly as heat preservation filler, need not to change many times among the repetitive production process, only need change during the dress ejection of compact workbin top heat preservation material can, simplified production technology.

(7) The utility model discloses the heating cabinet is graphitized goods, as splendid attire cathode material's container in the production on the one hand, and on the other hand is as the conductor, and the electric current self generates heat for the cathode material heating simultaneously through back, and graphite goods are higher than traditional resistance material each item performance, and current distribution is even, and the fuel factor is stable, and each position intensifies up evenly at intensification in-process, therefore cathode material quality stability is than higher.

(8) The utility model discloses can heat up single or a plurality of furnace chambers simultaneously in the heating-up area, the technological property controllability is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic side view of the present invention.

Wherein, the names corresponding to the reference numbers are:

1-heating chamber, 2-track, 3-moving box, 4-pusher, 5-waiting area, 6-heating area, 7-air cooling and cooling area, 8-box, 9-heat preservation filler, 10-heating box, 11-box plate, 12-conductive electrode, 13-transformer anode, 14-transformer cathode, 15-pusher, 16-cooling interlayer, 17-liquid inlet, 18-liquid outlet and 19-fan.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

Examples

As shown in fig. 1-2, the novel graphitization device for the lithium ion battery negative electrode material comprises a heating chamber 1, a track 2, a moving box 3, a pusher 4, a heating device and a cooling device.

The heating device is arranged on the side walls of two sides of the heating chamber 1, the bottom surface of the heating device penetrates through the rails 2, and the cathode material is heated and graphitized by the heating device in the heating chamber 1 and comprises a waiting area 5, a heating area 6 and an air cooling and cooling area 7. The waiting area 5 is adjacent to the pusher 4, the pusher 4 pushes the movable box 3 on the track 2 into the waiting area 5, and the movable box 3 in the warming area 6 is pushed into the warming area 6 for warming and heating treatment after heating is finished; the heating area 6 is adjacent to the waiting area 5, and a plurality of groups of heating devices are respectively installed on the side walls of the two sides of the heating area in a sliding mode and used for electrifying and heating the movable box 3; the air cooling and cooling area 7 is adjacent to the heating area 6, the top of the air cooling and cooling area is open, a fan 19 for ventilating and cooling is installed, after the heat preservation filler 9 on the top of the moving box 3 is removed, the box plate 11 is opened, and the fan 19 is started to blow and cool the cathode material in the heating box 10.

The rail 2 is laid on the ground, and passes through a waiting section 5, an warming-up section 6 and an air-cooled cooling-down section 7 in this order, for the mobile box 3 to slide thereon.

The moving boxes 3 are arranged on the sliding rails 2 in a plurality of adjacent numbers and are pushed by the pushers 4, and each moving box comprises a box body 8, a heat preservation filler 9, a heating box 10, a box plate 11 and a conductive electrode 12. The bottom of the box body 8 is provided with a pulley, so that the box body 8 can move on a slide rail, after the negative electrode material is filled in the heating box 10, the box body 8 is pushed by the pusher 4 to move forwards, and a plurality of box bodies 8 which are adjacently arranged on the slide rail 2 move forwards in sequence to heat in sequence; the heat-insulating filler 9 is filled in the box body 8, and the heat-insulating filler 9 is made of high-quality carbon materials, so that the heat-insulating filler can be repeatedly used, the repeated production process does not need to be replaced for many times, the heat-insulating material at the top of the material box only needs to be replaced during charging and discharging, the production process is simplified, and the heat-insulating property is excellent; the heating box 10 is filled in the heat-insulating filler 9, the material of the heating box is a graphitized product, the heating box is used as a container for containing the negative electrode material on one hand and is used as a conductor on the other hand, the conductive electrode 12 is in contact with the conductor, current is led in, the current is heated by the heating box after passing through the conductor, and the negative electrode material is heated at the same time, the graphite product has higher performance than the traditional resistance material, the current distribution is uniform, the heat effect is stable, and each part is uniformly heated in the heating process, so the quality stability of the; the box plate 11 covers the heating box 10 and is used for heat preservation and insulation, and simultaneously, the heat preservation filler 9 is isolated, so that the heat preservation filler 9 is prevented from being mixed with the cathode material; the number of the conductive electrodes 12 is two, and the two conductive electrodes 12 are symmetrically arranged on the side walls of the two sides of the box body 8, are respectively contacted with the positive pole 13 of the transformer and the negative pole 14 of the transformer, and guide the current to the heating box 10.

The pusher 4 is located at one end of the track 2 and is used to push the bin 8 forward.

The heating devices are arranged in the heating area 6 at equal intervals, are used for heating the heating box 10 to graphitize the cathode material in the heating box, and comprise a transformer anode 13, a transformer cathode 14 and an ejector 15. The transformer anode 13 and the transformer cathode 14 are respectively symmetrically and slidably mounted between the walls at two sides of the temperature rising region 6, when the ejector 15 pushes forwards, the transformer anode 13 and the transformer cathode 14 are connected with the conductive electrode 12 to start conducting, when the ejector 15 pushes backwards, the transformer anode 13 and the transformer cathode 14 are separated from the conductive electrode 12, and the current is cut off; the number of the lifters 15 is two and the two lifters are respectively arranged behind the positive pole 13 and the negative pole 14 of the transformer.

The cooling device is used for cooling the heating box 10 in the box body 8, is arranged outside the box body 8 and comprises a cooling interlayer 16, a liquid inlet 17 and a liquid outlet 18. The cooling interlayer 16 is wrapped on four side walls of the box body 8, cooling liquid is introduced through the liquid inlet 17, and the cooling liquid absorbs heat of the box body 8 and then is filled into the liquid outlet 18 to be discharged, so that the purpose of cooling is achieved; the liquid inlet 17 and the liquid outlet 18 are both arranged on the cooling interlayer 16 and are respectively connected with the external liquid inlet pipe and the liquid outlet pipe, when the box body 8 is moved out of the air cooling area 7, the liquid inlet 17 and the liquid outlet 18 are respectively connected with the external liquid inlet pipe and the liquid outlet pipe to cool the box body, and after the cooling is completed, the negative electrode material inside the box body is taken out through the external material sucking device.

When the utility model is used, the negative electrode material is filled in the heating box 10, the box plate 11 is covered on the heating box 10, the heat preservation filler 9 is covered on the cover plate 11, the pusher 4 is opened, the moving box 3 is pushed to move forwards, after the moving box 3 moves to the temperature rising area 6, the two pushers 15 are opened, the transformer anode 13 and the transformer cathode 14 are pushed to be connected with the conductive electrode 12, and the transformer anode 13 is electrified, so that the current thereof sequentially passes through the transformer anode 13, the conductive electrode 12, the heating box 10, the conductive electrode 12 and the transformer cathode 14, the heating box 10 is electrified and then is heated to heat the negative electrode material in the heating box, the negative electrode material is graphitized, after the graphitization is finished, the pushers 15 are decompressed, so that the transformer anode 13 and the transformer cathode 14 are separated from the conductive electrode 12, the pusher 4 is opened, the next moving box 3 is continuously pushed, the moving box 3 after the graphitization is pushed to the air cooling area 7, remove the heat preservation filler 9 at this district top with mobile box 3 and open case board 11, open fan 19 simultaneously, to the forced draft cooling of heating cabinet 10, after aeration cooling period, after last graphitization treatment's mobile box 3 is handled and is accomplished, impeller 4 continues to promote forward, this aeration cooling's mobile box 3 is continued forward, afterwards links to each other outside inlet tube and outlet pipe with inlet 17 and liquid outlet 18 respectively, let in the coolant liquid in cooling intermediate layer 16, carry out water-cooling to mobile box 3, through outside suction device with negative pole material suction after the cooling is accomplished, thereby a processing cycle has been accomplished.

The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel lithium ion battery cathode material graphitization device, its characterized in that, including install in heating chamber (1) on ground, lay in ground and pass track (2) of heating chamber (1), adjacent slidable mounting in a plurality of movable box (3) on track (2) are used for promoting impeller (4) that movable box (3) removed, equidistant install in the multiunit heating device of heating chamber (1) lateral wall, and install in cooling device on the movable box (3).

2. The novel graphitization device for the lithium ion battery cathode material is characterized in that the heating chamber (1) comprises a waiting area (5), an warming area (6) and an air cooling and cooling area (7) which are connected in sequence, wherein the waiting area (5) is arranged on the side of the pusher (4), the rails (2) are sequentially laid on the bottom surfaces of the waiting area (5), the warming area (6) and the air cooling and cooling area (7), and the heating device is installed on the side wall of the warming area (6).

3. The novel graphitization device for the negative electrode material of the lithium ion battery is characterized in that the air cooling and cooling area (7) is provided with a fan (19) for ventilating and cooling.

4. The novel graphitization device for the negative electrode material of the lithium ion battery is characterized in that the moving box (3) comprises a box body (8), a heat preservation filler (9) filled in the box body (8), a heating box (10) positioned in the middle of the heat preservation filler (9), a box plate (11) covering the top of the heating box (10), and two conductive electrodes (12) which are symmetrically fixed on the side walls of two sides of the box body (8) and connected with the heating box (10) through the heat preservation filler (9), wherein the conductive electrodes (12) are connected with the heating device, the cooling device is installed on the box body (8), and the box body (8) is slidably installed on the track (2).

5. The novel graphitization device for the lithium ion battery negative electrode material is characterized in that the heating device comprises a transformer positive electrode (13) and a transformer negative electrode (14) which are symmetrically and slidably installed on the side walls of the two sides of the heating area (6), and two lifters (15) which are respectively used for pushing the transformer positive electrode (13) and the transformer negative electrode (14) to be connected with the heating box (10).

6. The novel graphitization device for the negative electrode material of the lithium ion battery is characterized in that the heating box (10) is made of a graphitized product.

7. The novel graphitization device for the negative electrode material of the lithium ion battery as claimed in claim 4, wherein the cooling device comprises a cooling interlayer (16) attached to the peripheral side wall of the box body (8), and a liquid inlet (17) and a liquid outlet (18) which are respectively connected with the cooling interlayer (16).