CN212167592U - A reducing mechanism for graphite lithium cell negative electrode material - Google Patents
A reducing mechanism for graphite lithium cell negative electrode material Download PDFInfo
- Publication number
- CN212167592U CN212167592U CN202020746110.3U CN202020746110U CN212167592U CN 212167592 U CN212167592 U CN 212167592U CN 202020746110 U CN202020746110 U CN 202020746110U CN 212167592 U CN212167592 U CN 212167592U
- Authority
- CN
- China
- Prior art keywords
- machine body
- rotating
- rotating rod
- negative electrode
- graphite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 30
- 239000010439 graphite Substances 0.000 title claims abstract description 30
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 16
- 239000007773 negative electrode material Substances 0.000 title claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 21
- 238000005096 rolling process Methods 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model provides a smashing device for a negative electrode material of a graphite lithium battery, which comprises a machine body, a feeding port arranged at the top of the machine body and a discharging port arranged at the bottom of the machine body, wherein a first smashing mechanism, a second smashing mechanism, a blower and a filter plate are sequentially arranged in the machine body from top to bottom; first rubbing crusher constructs including two live-rollers that the structure is the same and two guides that the structure is the same, two be provided with a plurality of spurs on the live-roller, two the live-roller is rotationally the cover respectively and is located two first rotating shafts, second rubbing crusher constructs and includes: the net-shaped box comprises a net-shaped box body, a second rotating rod, a first motor, a second motor and a first rotating rod, wherein a plurality of meshes are arranged on the net-shaped box body. The utility model discloses it is efficient to the crushing of graphite, smash effectually.
Description
Technical Field
The utility model relates to a reducing mechanism technical field, concretely relates to a reducing mechanism for graphite lithium cell negative electrode material.
Background
The negative electrode of the graphite lithium battery is formed by uniformly coating a paste adhesive prepared by mixing a negative electrode active material carbon material or a non-carbon material, a binder and an additive on two sides of a copper foil, drying and rolling. The graphite powder has high electrical conductivity and thermal conductivity, extremely high melting point, good lubricity, plasticity and chemical stability, and is widely applied in industry, and further the demand on the graphite powder is more and more. A smashing device is usually needed for manufacturing graphite powder, but in the existing smashing device for the negative electrode material of the graphite lithium battery, a plurality of graphites cannot reach an ideal smashing degree during smashing and stirring, stirring blades are separated, secondary screening needs to be carried out manually, and the efficiency of producing the graphite powder is low; and the stirring efficiency and the stirring degree of the existing stirring blades are not high.
SUMMERY OF THE UTILITY MODEL
To the above technical problem, the utility model aims at providing a reducing mechanism for graphite lithium cell negative pole material, for solving above-mentioned technical problem, the utility model discloses a following technical scheme realizes:
a crushing device for a graphite lithium battery negative electrode material comprises a machine body, a feeding port arranged at the top of the machine body and a discharging port arranged at the bottom of the machine body, wherein a first crushing mechanism, a second crushing mechanism, a blower and a filter plate are sequentially arranged in the machine body from top to bottom;
the first crushing mechanism comprises two rotating rollers with the same structure and two guide pieces with the same structure, a plurality of spurs are arranged on the two rotating rollers, the two rotating rollers are respectively rotatably sleeved on the two first rotating shafts, two ends of the two first rotating shafts are respectively connected to two opposite side walls in the machine body, a gap between the two rotating rollers is positioned under the feeding port, the guide piece comprises a transverse supporting plate and an inclined plate, one end of the transverse supporting plate is connected with the inner side wall of the machine body, the other end of the transverse supporting plate is connected with one end face of the inclined plate, the two inclined plates are both inclined downwards towards the center direction of the machine body, and the gap between the two inclined plates is positioned under the gap between the two rotating rollers;
the second shredder mechanism comprises: the first motor and the second motor are respectively arranged on two opposite side walls in the machine body, one end of the first rotary rod is rotatably connected with the second motor, and the other end of the first rotary rod is connected with the center of one end face of the reticular box; a round hole capable of accommodating the rotation of the second rotating rod is formed in the center of the other end face, opposite to the end face connected with the first rotating rod, of the mesh box, one end of the second rotating rod is rotatably connected with the first motor, the other end of the second rotating rod enters the mesh box through the round hole, and the second rotating rod is arranged on the position of the mesh box and is provided with a plurality of first stirring blades in a surrounding mode; the top of the reticular box is provided with an opening and a cover body matched with the opening, the cover body can be opened and closed, the opening is positioned right below a gap between the two inclined plates, and the reticular box is provided with a plurality of meshes;
the blower is arranged on the inner side wall of the machine body, the air outlet of the blower faces the mesh box, and the filter plate is arranged below the blower.
Advantageously, the inlet is funnel-shaped.
Advantageously, the inner side wall of the fuselage is also provided with vibration means.
Advantageously, a groove is formed at one end of the second rotating rod close to the mesh box, a second rotating shaft is arranged in the groove, two ends of the second rotating shaft are respectively connected to two opposite side walls of the groove, a rotating disc is rotatably sleeved on the second rotating shaft, and a plurality of second stirring blades are arranged on the rotating disc in a surrounding mode.
Advantageously, the filter board is removably attached to the frame.
Advantageously, the filter panel is provided with a handle at one end, the handle being located outside the body.
The utility model discloses it does to have following beneficial effect:
1. the graphite can be effectively and primarily crushed through the rotating rollers and the spurs, so that the next crushing is facilitated;
2. through the rotatable mesh box and the blower, the situation that the graphite which is not fully crushed leaves the first stirring blade can be effectively prevented, the contact probability of each graphite powder and the first stirring blade is increased, and the standard reaching rate of the graphite powder is improved;
3. through the filter, can carry out the secondary screening to the graphite powder, prevent that the great graphite powder of size from directly dropping to the discharge gate after overflowing from netted case because of other reasons, improve graphite powder standard reaching rate once more.
Drawings
The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.
Fig. 1 is a schematic structural diagram of a crushing device for a negative electrode material of a graphite lithium battery according to the present invention;
fig. 2 is a front view of the second rotary rod of the present invention.
Fig. 3 is a plan view of the second rotary rod of the present invention.
Reference numerals: the device comprises a machine body 1, a feeding port 2, a rotating roller 3, a bur 31, a first rotating shaft 4, a transverse supporting plate 5, an inclined plate 6, a mesh box 7, a cover body 71, a second rotating rod 8, a first stirring blade 81, a second stirring blade 82, a second rotating shaft 83, a groove 84, a rotating disc 85, a first motor 9, a second motor 10, a first rotating rod 11, a vibrating device 12, a blower 13, a filter plate 14, a handle 15 and a discharging port 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.
As shown in fig. 1-3, a crushing device for a negative electrode material of a graphite lithium battery comprises a machine body 1, a feeding port 2 arranged at the top of the machine body 1, and a discharging port 16 arranged at the bottom of the machine body 1, wherein a first crushing mechanism, a second crushing mechanism, a blower 13 and a filter plate 14 are sequentially arranged in the machine body 1 from top to bottom;
the first crushing mechanism comprises two rotating rollers 3 with the same structure and two guiding pieces with the same structure, a plurality of spurs 31 are arranged on the two rotating rollers 3, the two rotating rollers 3 are respectively and rotatably sleeved on the two first rotating shafts 4, two ends of the two first rotating shafts 4 are respectively connected with two opposite side walls in the machine body 1, a gap between the two rotating rollers 3 is positioned under the feeding port 2, the guiding pieces comprise transverse supporting plates 5 and inclined plates 6, one end of each transverse supporting plate 5 is connected with the inner side wall of the machine body 1, the other end of each transverse supporting plate is connected with one end face of each inclined plate 6, the two inclined plates 6 are inclined downwards towards the center direction of the machine body 1, and the gap between the two inclined plates 6 is positioned under the gap between the two rotating rollers 3;
the second shredder mechanism comprises: the portable multifunctional portable electronic device comprises a reticular box 7, a second rotating rod 8, a first motor 9, a second motor 10 and a first rotating rod 11, wherein the first motor 9 and the second motor 10 are respectively arranged on two opposite side walls in the machine body 1, one end of the first rotating rod 11 is rotatably connected with the second motor 10, and the other end of the first rotating rod is connected with the center of one end face of the reticular box 7; a round hole capable of accommodating the rotation of the second rotating rod 8 is formed in the center of the other end face, opposite to the end face connected with the first rotating rod 11, of the mesh box 7, one end of the second rotating rod 8 is rotatably connected with the first motor 9, the other end of the second rotating rod enters the mesh box 7 through the round hole, and a plurality of first stirring blades 81 are arranged on the position, where the second rotating rod 8 is arranged, of the mesh box 7 in a surrounding manner; the top of the reticular box 7 is provided with an opening and a cover body 71 which is matched with the opening, the cover body 71 can be opened and closed, the opening is positioned right below a gap between the two inclined plates 6, and the reticular box 7 is provided with a plurality of meshes.
The blower 13 is arranged on the inner side wall of the machine body 1, the air outlet of the blower 13 faces the mesh box 7, the filter plate 14 is arranged below the blower 13, and the feeding port 2 is funnel-shaped.
The implementation process comprises the following steps: the smashing device is started, graphite is poured into the material inlet 2, the graphite enters between the two rotating rollers 3, the two rotating rollers 3 respectively rotate around the first rotating shaft 4, the rotating directions of the two rotating rollers 3 are opposite, the graphite is primarily smashed through the burs 31 on the two rotating rollers 3, the primarily smashed graphite part directly falls into the mesh box 7 through the opening on the mesh box 7, the part slides along the inclined plate 6 and falls into the mesh box 7 through the opening on the mesh box 7, then the cover body 71 is closed, the first motor 9 and the second motor 10 are started, the first motor 9 drives the mesh box 7 to rotate through the first rotating rod 11, the second motor 10 drives the second rotating rod 8 to rotate, the first stirring blades 81 on the second rotating rod 8 rotate in the mesh box 7 to smash the graphite, the rotation of the mesh box 7 and the air of the blower 13 can assist the graphite to do irregular rolling motion in the mesh box 7, the crushing is more thorough and efficient. When the graphite is smashed to enough tiny, can break away from netted case 7 from the mesh on netted case 7, drop to filter 14 on, filter 14 can carry out the secondary screening to the graphite powder, and the graphite powder that the size is enough little can drop discharge gate 16 through filter 14, and the graphite powder that the size is too big can be blockked on filter 14.
The utility model can effectively carry out preliminary grinding on graphite through the rotating roller 3 and the spurs 31, which is beneficial to the next grinding; through the rotatable mesh box 7 and the blower 13, the situation that the graphite which is not fully crushed leaves the first stirring blades 81 can be effectively prevented, the contact probability of each graphite powder and the first stirring blades 81 is increased, and the standard reaching rate of the graphite powder is improved; through filter 14, can carry out the secondary screening to the graphite powder, prevent that the great graphite powder of size from directly dropping to discharge gate 16 after spilling over from netted case 7 because of other reasons, improve graphite powder standard reaching rate once more.
According to the utility model discloses an in an optional embodiment, the inside wall of fuselage 1 still is provided with vibrating device 12, and the graphite powder can be attached to on lateral wall or other parts in reducing mechanism, and vibrating device 12 can shake these graphite powders down, reduces the waste of graphite powder when playing the cleaning action.
According to the utility model discloses an in an optional embodiment, second rotary rod 8 is close to netted case 7 one end is provided with recess 84, be provided with second axis of rotation 83 in the recess 84, second axis of rotation 83 both ends connect respectively in on two relative lateral walls of recess 84, the rolling disc 85 rotationally overlaps and is located in the second axis of rotation 83, it is provided with a plurality of second stirring leaves 82 to surround on the rolling disc 85, and in second rotary rod 8 pivoted, second stirring leaf 82 centers on second axis of rotation 83 rotatoryly, and second stirring leaf 82 all makes rotary motion at level and vertical direction this moment, can carry out effectual stirring to graphite and smash, further improves crushing efficiency and crushing rate.
According to the utility model discloses an in the optional embodiment, the filter 14 with the connection can be dismantled to fuselage 1, 14 one end of filter is provided with handle 15, handle 15 is located fuselage 1 is outside, can take out from fuselage 1 filter 14 through handle 15, pours into pan feeding mouth 2 again the graphite that is stained with on filter 14, prevents extravagantly.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A smashing device for a negative electrode material of a graphite lithium battery comprises a machine body (1), a feeding port (2) arranged at the top of the machine body (1) and a discharging port (16) arranged at the bottom of the machine body (1), and is characterized in that a first smashing mechanism, a second smashing mechanism, a blower (13) and a filter plate (14) are sequentially arranged in the machine body (1) from top to bottom;
the first crushing mechanism comprises two rotating rollers (3) with the same structure and two guiding pieces with the same structure, a plurality of spurs (31) are arranged on the two rotating rollers (3), the two rotating rollers (3) are respectively and rotatably sleeved on the two first rotating shafts (4), two ends of the two first rotating shafts (4) are respectively connected with two opposite side walls in the machine body (1), a gap between the two rotating rollers (3) is positioned under the feeding port (2), the guide part comprises a transverse support plate (5) and inclined plates (6), one end of the transverse support plate (5) is connected with the inner side wall of the machine body (1), the other end of the transverse support plate is connected with one end face of each inclined plate (6), the two inclined plates (6) are inclined downwards towards the center direction of the machine body (1), and a gap between the two inclined plates (6) is positioned right below a gap between the two rotating rollers (3);
the second shredder mechanism comprises: the device comprises a reticular box (7), a second rotating rod (8), a first motor (9), a second motor (10) and a first rotating rod (11), wherein the first motor (9) and the second motor (10) are respectively arranged on two opposite side walls in the machine body (1), one end of the first rotating rod (11) is rotatably connected with the second motor (10), and the other end of the first rotating rod is connected with the center of one end face of the reticular box (7); a round hole capable of accommodating the second rotating rod (8) to rotate is formed in the center of the other end face, opposite to the end face connected with the first rotating rod (11), of the mesh box (7), one end of the second rotating rod (8) is rotatably connected with the first motor (9), the other end of the second rotating rod enters the mesh box (7) through the round hole, and a plurality of first stirring blades (81) are arranged on the position, arranged on the mesh box (7), of the second rotating rod (8) in a surrounding mode; the top of the reticular box (7) is provided with an opening and a cover body (71) which is adapted to the opening, the cover body (71) can be opened and closed, the opening is positioned right below a gap between the two inclined plates (6), and the reticular box (7) is provided with a plurality of meshes;
the blower (13) is arranged on the inner side wall of the machine body (1), the air outlet of the blower (13) faces to the mesh box (7), and the filter plate (14) is arranged below the blower (13).
2. The smashing device for the negative electrode material of the graphite lithium battery as claimed in claim 1, wherein the feeding port (2) is funnel-shaped.
3. The crushing device for the negative electrode material of the graphite lithium battery as claimed in claim 1, wherein the inner side wall of the machine body (1) is further provided with a vibration device (12).
4. The crushing device for the negative electrode material of the lithium graphite battery as claimed in claim 1, wherein a groove (84) is formed at one end of the second rotating rod (8) close to the mesh box (7), a second rotating shaft (83) is arranged in the groove (84), two ends of the second rotating shaft (83) are respectively connected to two opposite side walls of the groove (84), a rotating disc (85) is rotatably sleeved on the second rotating shaft (83), and a plurality of second stirring blades (82) are circumferentially arranged on the rotating disc (85).
5. The crushing device for the negative electrode material of the graphite lithium battery as claimed in claim 4, wherein the filter plate (14) is detachably connected with the machine body (1).
6. The crushing device for the negative electrode material of the graphite lithium battery as claimed in claim 5, wherein a handle (15) is provided at one end of the filter plate (14), and the handle (15) is located outside the machine body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020746110.3U CN212167592U (en) | 2020-05-08 | 2020-05-08 | A reducing mechanism for graphite lithium cell negative electrode material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020746110.3U CN212167592U (en) | 2020-05-08 | 2020-05-08 | A reducing mechanism for graphite lithium cell negative electrode material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212167592U true CN212167592U (en) | 2020-12-18 |
Family
ID=73764748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020746110.3U Active CN212167592U (en) | 2020-05-08 | 2020-05-08 | A reducing mechanism for graphite lithium cell negative electrode material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212167592U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113207356A (en) * | 2021-05-07 | 2021-08-06 | 徐州院博辣椒产业技术研究院有限公司 | Agricultural seed breeding device with constant temperature function |
| CN116689096A (en) * | 2023-04-07 | 2023-09-05 | 青岛青北碳素制品有限公司 | Cooling kettle discharging structure for graphite negative electrode material production |
-
2020
- 2020-05-08 CN CN202020746110.3U patent/CN212167592U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113207356A (en) * | 2021-05-07 | 2021-08-06 | 徐州院博辣椒产业技术研究院有限公司 | Agricultural seed breeding device with constant temperature function |
| CN113207356B (en) * | 2021-05-07 | 2022-03-15 | 徐州院博辣椒产业技术研究院有限公司 | Agricultural seed breeding device with constant temperature function |
| CN116689096A (en) * | 2023-04-07 | 2023-09-05 | 青岛青北碳素制品有限公司 | Cooling kettle discharging structure for graphite negative electrode material production |
| CN116689096B (en) * | 2023-04-07 | 2024-05-28 | 青岛青北碳素制品有限公司 | Cooling kettle discharging structure for graphite negative electrode material production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212167592U (en) | A reducing mechanism for graphite lithium cell negative electrode material | |
| CN211563113U (en) | Waste treatment device for lithium battery production | |
| CN113953037A (en) | Production equipment for lithium ion battery cathode material | |
| CN109821740A (en) | A kind of waste lithium cell fragment wind-force separation equipment | |
| CN216062913U (en) | Lithium battery negative electrode material's agitating unit | |
| CN108837760A (en) | A kind of slurry agitation mixing arrangement of lithium battery production | |
| CN213942951U (en) | Graphite raw material mixing device for lithium battery production | |
| CN212576834U (en) | Lithium ion battery cathode material filters sieving mechanism | |
| CN211274972U (en) | Raw materials reducing mechanism is used in preparation of multi-functional graphite alkene thick liquids | |
| CN208591919U (en) | A kind of lithium ion battery negative material grinding device | |
| CN209549673U (en) | Grinding device is used in a kind of processing of lithium battery | |
| CN213340491U (en) | Waste lithium battery all-component material separation and collection device | |
| CN213763416U (en) | Precious metal recycling device for lead storage battery | |
| CN108729277A (en) | A kind of waste paper recycling pulping system | |
| CN209438455U (en) | A kind of agitating device of lithium cell cathode material | |
| CN113441057A (en) | High-efficient fixed dispersion agitator tank | |
| CN209173467U (en) | Pulp of lithium ion battery sieving equipment | |
| CN221268409U (en) | Smashing device for negative electrode material of graphite lithium battery | |
| CN207231139U (en) | A kind of drying equipment of crystallizer protecting residue | |
| CN220276860U (en) | Material mixing equipment | |
| CN211537604U (en) | Lithium ion battery electrode material compounding device | |
| CN216987849U (en) | Graphite lithium cell reducing mechanism for anode material | |
| CN110918209A (en) | Food detects uses rubbing crusher | |
| CN216826412U (en) | Coarse crushing device for hardened materials | |
| CN215028519U (en) | Particle mixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A crushing device for graphite lithium battery negative electrode materials Granted publication date: 20201218 Pledgee: Guangxi Beibu Gulf Bank Co.,Ltd. Wuzhou Branch Pledgor: Wuzhou Tongxin Energy Materials Co.,Ltd. Registration number: Y2024980013965 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |