CN215644568U - Device for reducing graphene oxide lithium iron phosphate battery positive electrode composite material - Google Patents
Device for reducing graphene oxide lithium iron phosphate battery positive electrode composite material Download PDFInfo
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- CN215644568U CN215644568U CN202122123559.1U CN202122123559U CN215644568U CN 215644568 U CN215644568 U CN 215644568U CN 202122123559 U CN202122123559 U CN 202122123559U CN 215644568 U CN215644568 U CN 215644568U
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- Prior art keywords
- grinding
- iron phosphate
- composite material
- ring
- graphene oxide
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 22
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 238000000227 grinding Methods 0.000 claims abstract description 61
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 19
- 239000010439 graphite Substances 0.000 claims abstract description 19
- 238000012216 screening Methods 0.000 claims abstract description 16
- 238000003746 solid phase reaction Methods 0.000 claims abstract description 15
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 11
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- -1 iron chromium aluminum Chemical compound 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000005245 sintering Methods 0.000 abstract description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 3
- 238000000498 ball milling Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007774 positive electrode material Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000002244 precipitate Substances 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 5
- 238000005485 electric heating Methods 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 229910052493 LiFePO4 Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000010405 anode material Substances 0.000 description 2
- 239000006184 cosolvent Substances 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000003223 protective agent Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- 239000011782 vitamin Substances 0.000 description 2
- 229940088594 vitamin Drugs 0.000 description 2
- 229930003231 vitamin Natural products 0.000 description 2
- 235000013343 vitamin Nutrition 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model discloses a device for reducing a graphene oxide lithium iron phosphate battery positive electrode composite material, and relates to the field of preparation of lithium ion battery positive electrode materials. The device comprises a solid-phase reaction base structure, wherein the top end of the solid-phase reaction base structure is connected with a bidirectional connection grinding and screening pipe through threads, the top end of the bidirectional connection grinding and screening pipe is connected with a multifunctional manufactured structure through threads, and a grinding blanking plate is welded on the inner side of the bidirectional connection grinding and screening pipe. According to the utility model, through the integrated design of the device, the device is convenient for completing automatic and convenient ball milling of the expanded graphite to obtain the reduced graphene oxide with a proper size, and after the interior of the device is contacted with the remainder, the continuous automatic sintering at a constant temperature is completed, and the whole design is convenient for assembly and separation, so that the integrated preparation of the reduced graphene oxide lithium iron phosphate battery anode composite material is convenient, and the use efficiency and the use effect are greatly improved.
Description
Technical Field
The utility model belongs to the field of preparation of lithium ion battery positive electrode materials, and particularly relates to a device for reducing a graphene oxide lithium iron phosphate battery positive electrode composite material.
Background
The energy is the basis of national development, and with the continuous development of the world economy and the excessive exploitation of non-renewable resources, the human beings are promoted to continuously search for new green clean energy. The lithium battery has good self-discharge, specific capacity and cycle life, and is widely applied to daily life of people in recent years. The lithium iron phosphate is taken as the lithium battery anode material, the theoretical specific capacity of the lithium iron phosphate is as high as 170mAh/g, the composition resources are rich, the pollution is small, and the lithium iron phosphate is known as one of the most ideal lithium battery anode materials. However, as a power battery, the charging speed is slow and the battery is easy to be hot due to low electronic conductivity and lithium ion diffusion rate caused by the structure of the power battery, and a corresponding device is needed for manufacturing the battery material.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device for reducing a graphene oxide lithium iron phosphate battery positive electrode composite material, which solves the existing problems: the existing device is inconvenient to use, lacks of a connected design and has lower efficiency.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
a device for reducing a graphene oxide lithium iron phosphate battery positive electrode composite material comprises a solid-phase reaction base structure, wherein the top end of the solid-phase reaction base structure is connected with a bidirectional connection grinding screening pipe through threads, the top end of the bidirectional connection grinding screening pipe is connected with a multifunctional manufacturing structure through threads,
furthermore, the inside welding of two-way connection grinding screening pipe has the grinding blanking plate, a plurality of blanking through-holes have been seted up to the inside of grinding blanking plate.
Further, the multifunctional manufacturing structure comprises a mounting top block, an inner guide carrying ring and a grinding movable guide ring, wherein the inner side of the mounting top block is welded with the inner guide carrying ring, and the inner side of the inner guide carrying ring is connected with the grinding movable guide ring in a sliding mode.
Further, multi-functional structure of making still includes bulb grinding rod, motor and gas injection mouth, the top of joining in marriage the dress kicking block is through screw fixedly connected with motor, the output of motor moves guide ring fixed connection with the grinding, the bottom mounting that grinds the guide ring has a plurality of bulb grinding rods, interior guide carries the inside fixedly connected with gas injection mouth of ring both sides.
Further, the solid phase reaction base structure is including collecting base, heat retaining ring, automatically controlled connecting seat and resistance to heating silk, the outside fixedly connected with heat retaining ring of collecting the base, the automatically controlled connecting seat of inboard fixedly connected with of heat retaining ring, the both ends of automatically controlled connecting seat all are connected with the resistance to heating silk.
Furthermore, the material of the electric heating resistance wire is iron chromium aluminum.
Reducing graphite oxide of a battery anode into expanded graphite by using a reducing atmosphere, placing the expanded graphite at the top end of a grinding blanking plate, adding a grinding aid and a protective agent into the grinding blanking plate, adjusting the pH value to 7-11, controlling a motor, driving a grinding movable guide ring to rotate by using the motor, guiding the inside of a carrying ring to slide by using the grinding movable guide ring to complete continuous driving of a ball head grinding rod, finishing continuous grinding of the expanded graphite by using the ball head grinding rod, stripping the expanded graphite after the expanded graphite is ground to the falling size of a blanking through hole, dropping the expanded graphite into a collection base to obtain reduced graphene oxide, separating a bidirectional connection grinding screening pipe from a multifunctional manufacturing structure, slowly adding the expanded graphite into an iron source containing a small amount of water-soluble vitamins into the interior of the collection base to obtain precipitates, washing the precipitate for several times by using deionized water, placing the precipitate in vacuum drying to obtain a high-purity iron source and a phosphoric acid source, mixing the obtained high-purity iron source and phosphoric acid source with a lithium source, adding a cosolvent and an acid salt, fully grinding, fixing a grinding blanking plate and a multifunctional manufacturing structure at the moment, injecting inert protective gas into the collection base through a gas injection nozzle, controlling an electric control connecting seat to enable an electric heating resistance wire to generate high temperature after being electrified, completing heating of the collection base, completing corresponding sintering solid-phase reaction in the collection base, synthesizing porous LiFePO4 powder, fully mixing reduced graphene oxide and lithium iron phosphate according to a certain proportion, and drying to obtain the reduced graphene oxide/lithium iron phosphate battery anode composite material.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, through the integrated design of the device, the device is convenient for completing automatic and convenient ball milling of the expanded graphite to obtain the reduced graphene oxide with a proper size, and after the interior of the device is contacted with the remainder, the continuous automatic sintering at a constant temperature is completed, and the whole design is convenient for assembly and separation, so that the integrated preparation of the reduced graphene oxide lithium iron phosphate battery anode composite material is convenient, and the use efficiency and the use effect are greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the present invention as a whole;
FIG. 3 is a schematic view of the connection structure of the multifunctional structure according to the present invention;
FIG. 4 is a schematic view showing the connection structure of the solid-phase reaction base structure of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a solid phase reaction base structure; 2. the grinding and screening pipe is connected in a bidirectional way; 3. multifunctional manufacturing structure; 4. grinding a blanking plate; 5. assembling a top block; 6. an inner guide carrying ring; 7. grinding the movable guide ring; 8. a ball head grinding rod; 9. a motor; 10. a gas injection nozzle; 11. a collection base; 12. a heat storage ring; 13. an electric control connecting seat; 14. and an electric heating resistance wire.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a device for reducing a graphene oxide lithium iron phosphate battery positive electrode composite material comprises a solid-phase reaction base structure 1, wherein the top end of the solid-phase reaction base structure 1 is connected with a bidirectional connection grinding screening pipe 2 through a thread, and the top end of the bidirectional connection grinding screening pipe 2 is connected with a multifunctional manufacturing structure 3 through a thread.
The inboard welding of two-way connection grinding screening pipe 2 has grinding blanking plate 4, and a plurality of blanking through-holes have been seted up to grinding blanking plate 4's inside.
The multifunctional manufacturing structure 3 comprises an assembling ejector block 5, an inner guide carrying ring 6 and a grinding movable guide ring 7, wherein the inner side of the assembling ejector block 5 is welded with the inner guide carrying ring 6, and the inner side of the inner guide carrying ring 6 is connected with the grinding movable guide ring 7 in a sliding mode.
The solid-phase reaction base structure 1 comprises a collecting base 11, a heat accumulation ring 12, an electric control connecting base 13 and an electric resistance wire 14, wherein the outer side of the collecting base 11 is fixedly connected with the heat accumulation ring 12, the inner side of the heat accumulation ring 12 is fixedly connected with the electric control connecting base 13, and two ends of the electric control connecting base 13 are connected with the electric resistance wire 14.
The material of the electric heating resistance wire 14 is iron chromium aluminum.
One specific application of this embodiment is: reducing graphite oxide of a battery anode into expanded graphite by using a reducing atmosphere, placing the expanded graphite at the top end of a grinding blanking plate 4, adding a grinding aid and a protective agent into the grinding blanking plate 4, adjusting the pH value to 7-11, controlling a motor 9, driving a grinding movable guide ring 7 to rotate by using the motor 9, guiding the interior of a carrying ring 6 to slide by using the grinding movable guide ring 7, continuously driving a ball head grinding rod 8, continuously grinding the expanded graphite by using the ball head grinding rod 8, stripping the expanded graphite after the expanded graphite is ground to the falling size of a blanking through hole, dropping the expanded graphite into a collection base 11 to obtain reduced graphene oxide, separating a bidirectional connection grinding screening pipe 2 from a multifunctional manufacturing structure 3, slowly adding the expanded graphite into an iron source containing a small amount of water-soluble vitamins into the collection base 11 to obtain a precipitate, washing the precipitate for several times by using deionized water, placing the precipitate in a vacuum drying position to obtain a high-purity iron source and a phosphoric acid source, mixing the obtained high-purity iron source and phosphoric acid source with a lithium source, adding a cosolvent and acid salt, fully grinding, fixing the grinding and screening pipe 2 and the multifunctional manufacturing structure 3 at the moment, injecting inert protective gas into the collection base 11 through the gas injection nozzle 10, controlling the electric control connecting seat 13 to enable the electric heating wire 14 to generate high temperature after being electrified, completing heating of the collection base 11, completing corresponding sintering solid-phase reaction in the collection base 11, synthesizing porous LiFePO4 powder, fully mixing the reduced graphene oxide and the lithium iron phosphate according to a certain proportion, and drying to obtain the reduced graphene oxide/lithium iron phosphate battery anode composite material.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The utility model provides a device of anodal combined material of reduction oxidation graphite alkene iron phosphate lithium cell which characterized in that, includes solid phase reaction base structure (1), there is two-way connection grinding screening pipe (2) on the top of solid phase reaction base structure (1) through threaded connection, there is multi-functional structure (3) of making on the top of two-way connection grinding screening pipe (2) through threaded connection.
2. The device for reducing the positive electrode composite material of the graphene oxide lithium iron phosphate battery according to claim 1, wherein a grinding blanking plate (4) is welded on the inner side of the bidirectional connection grinding screening pipe (2), and a plurality of blanking through holes are formed in the grinding blanking plate (4).
3. The device for reducing the positive composite material of a graphene iron phosphate lithium battery according to claim 1, wherein the multifunctional fabricated structure (3) comprises a fitting top block (5), an inner guide carrying ring (6) and a grinding movable guide ring (7), the inner guide carrying ring (6) is welded on the inner side of the fitting top block (5), and the grinding movable guide ring (7) is slidably connected on the inner side of the inner guide carrying ring (6).
4. The device for reducing the positive composite material of the graphene iron phosphate lithium battery according to claim 3, wherein the multifunctional fabricated structure (3) further comprises a ball grinding rod (8), a motor (9) and an air injection nozzle (10), the top end of the assembled top block (5) is fixedly connected with the motor (9) through a screw, the output end of the motor (9) is fixedly connected with the grinding movable guide ring (7), the bottom end of the grinding movable guide ring (7) is fixedly provided with the ball grinding rods (8), and the air injection nozzle (10) is fixedly connected to the inner portions of two sides of the inner guide carrying ring (6).
5. The device for reducing the positive composite material of the graphene iron phosphate lithium battery according to claim 1, wherein the solid-phase reaction base structure (1) comprises a collection base (11), a heat accumulation ring (12), an electrically controlled connecting seat (13) and an electric resistance wire (14), the heat accumulation ring (12) is fixedly connected to the outer side of the collection base (11), the electrically controlled connecting seat (13) is fixedly connected to the inner side of the heat accumulation ring (12), and the electric resistance wire (14) is connected to both ends of the electrically controlled connecting seat (13).
6. The device for reducing the positive electrode composite material of the graphene oxide iron phosphate lithium battery according to claim 5, wherein the material of the heating resistance wire (14) is iron chromium aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123559.1U CN215644568U (en) | 2021-09-03 | 2021-09-03 | Device for reducing graphene oxide lithium iron phosphate battery positive electrode composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123559.1U CN215644568U (en) | 2021-09-03 | 2021-09-03 | Device for reducing graphene oxide lithium iron phosphate battery positive electrode composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215644568U true CN215644568U (en) | 2022-01-25 |
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|---|---|---|---|
| CN202122123559.1U Expired - Fee Related CN215644568U (en) | 2021-09-03 | 2021-09-03 | Device for reducing graphene oxide lithium iron phosphate battery positive electrode composite material |
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| Country | Link |
|---|---|
| CN (1) | CN215644568U (en) |
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2021
- 2021-09-03 CN CN202122123559.1U patent/CN215644568U/en not_active Expired - Fee Related
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Granted publication date: 20220125 |