CN113036286B - Ultrahigh-rate lithium battery and production process thereof - Google Patents
Ultrahigh-rate lithium battery and production process thereof Download PDFInfo
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- CN113036286B CN113036286B CN202110225687.9A CN202110225687A CN113036286B CN 113036286 B CN113036286 B CN 113036286B CN 202110225687 A CN202110225687 A CN 202110225687A CN 113036286 B CN113036286 B CN 113036286B
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses an ultrahigh-rate lithium battery and a production process thereof, and the ultrahigh-rate lithium battery comprises a top cover, a protective shell assembly, a shell door, a first handle, a lithium battery body, a limiting plate, a fan, a second handle, a box door, a box, an air suction cover, a heat dissipation plate, a through groove, a guide rod, a first locking rod, a mounting block, a locking pin, a limiting hole, a mounting seat, a second locking rod, a spring, an air inlet cover, a hemispherical head, a locking ring, a lime layer, a filter screen, a jack, a locking block and a locking groove, wherein a titanium nanotube is used as a negative electrode material, the coating thickness of slurry is controlled to be 68-71 mu m, and the compaction density is 2.9g/cm 3 The multiplying power that is favorable to promoting the battery drives the heat that lithium cell during operation sent on the heating panel through the rotation of fan, is favorable to improving the security of lithium cell work, realizes the locking of latch segment to the locking pin and loosens through pressing down first check lock lever and second check lock lever, is favorable to realizing splicing fast and dismantling of lithium cell.
Description
Technical Field
The invention relates to the technical field of lithium battery production, in particular to an ultrahigh-rate lithium battery and a production process thereof.
Background
The lithium battery is a battery which uses lithium metal or lithium alloy as a positive electrode material and a negative electrode material and uses a non-aqueous electrolyte solution, and the lithium metal has very high requirements on the environment due to the very active chemical characteristics of the lithium metal, so that the lithium metal is processed, stored and used. With the development of scientific technology, lithium batteries have become the mainstream.
The kind of lithium cell is diversified, general lithium cell charge-discharge speed is slower, low efficiency, can't satisfy the use of the equipment that needs quick charge-discharge such as electric automobile, have extensive application because its quick charge-discharge performance, however because its multiplying power is high, charge-discharge speed is fast thereby its security performance descends to some extent, when receiving sharp-pointed object puncture, very easily explode and the incident of burning, and because its charge-discharge speed is fast, the battery generates heat obviously, the heat disperses in time, can greatly reduced charge-discharge's efficiency, and serious can cause the conflagration even, the lithium cell is mostly for a plurality of monocells to splice simultaneously and use together, the most lithium cells on the market now adopt film or steel band nut to bind now, inefficiency, the installation is hard with the dismantlement.
Disclosure of Invention
The invention aims to provide an ultrahigh-rate lithium battery and a production process thereof, which aim to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a super-high-rate lithium battery comprises a top cover, a top cover positive terminal, a top cover negative terminal, a protective shell assembly, a shell door, a first handle, a lithium battery body, a limiting plate, a fan, a second handle, a box door, a box, an air suction cover, a heat dissipation plate, a through groove, a guide rod, a first locking rod, a mounting block, a locking pin, a limiting hole, a mounting seat, a second locking rod, a spring, an air inlet cover, a hemispherical head, a locking ring, a lime layer, a filter screen, a jack, a locking block and a locking groove, wherein the edge of the bottom of the top cover is fixedly connected with the top of the protective shell assembly;
the protective shell assembly comprises a plastic shell layer and a built-in metal net, the edge of the bottom of the top cover is fixedly connected with the top of the plastic shell layer, the built-in metal net is arranged in the plastic shell layer, four independent lithium battery bodies are fixedly arranged at the center of the bottom of the protective shell assembly, mounting blocks are respectively arranged at the top and one corner of the bottom of each lithium battery body, the center of one side of each mounting block is fixedly connected with one end of a locking pin, a plurality of locking rings are uniformly arranged on the locking pins, a hemispherical head is arranged at one end of each locking pin, one end of each locking pin is inserted into a jack, the locking rings on the locking pins are clamped in locking grooves, the locking grooves are uniformly formed in the inner circumference of one side, opposite to each locking block, of the inner circumference of one side, opposite to each locking block, is respectively attached to the outer circumference of the locking pin, the center of one side, adjacent to each locking block, is respectively fixedly connected with one end of a first locking rod and one end of a second locking rod, the other ends of the first locking rod and the second locking rod extend out of the through groove, the through groove is formed in the center of one side of the mounting seat, the opposite sides of the mounting seat are respectively mounted at the other two angular positions on the two sides of the lithium battery body, one end of the center of the second locking rod is positioned in the limiting hole, the limiting hole is formed in one end of the center of the first locking rod, the centers of the opposite sides of the first locking rod and the second locking rod are respectively and fixedly connected with the two ends of a spring, the spring is wound at the center of a guide rod, the two ends of the guide rod penetrate through the first locking rod and the second locking rod, the two ends of the guide rod are respectively and fixedly connected with the top and the bottom of one side of the center of the through groove, the centers of the two sides of the lithium battery body are uniformly provided with a plurality of heat dissipation plates, the center of one side of the protective shell assembly is provided with a shell door, and one side of the shell door is provided with a lime layer, a filter screen is installed on one side of the lime layer, a case is installed in the center of the other side of the protective shell assembly, and a fan is installed inside the case.
A production process of an ultra-high rate lithium battery comprises the following steps: step one, manufacturing a pole piece; step two, manufacturing a battery cell; step three, packaging the battery; step four, capacity grading and formation; step five, mounting and splicing; sixthly, dissipating heat by using a fan;
in the first step, firstly, mixing an electrode active material, a binder, a solvent and the like together, stirring by a stirrer to form slurry, uniformly coating the prepared slurry on a current collector by using a coating machine, then compacting and drying to form a positive plate and a negative plate, and then punching and cutting the plates into uniform sizes;
in the second step, the polar plate manufactured and punched in the first step is wound into a battery cell by a winding machine, then the wound battery cell is arranged in a shell of a lithium battery body, and then electrolyte is injected into the battery cell by an electrolyte injection machine to finish the manufacture of the battery cell;
in the third step, the positive pole ear plate, the negative pole ear plate, the cover plate and the binding post of the cover plate of the lithium battery body are installed on the basis of the second step, so that the packaging of the lithium battery body is completed;
in the fourth step, the lithium battery body packaged in the third step is charged and activated to generate voltage, and the capacity of the battery is tested;
wherein in the fifth step, install the heating panel to the lithium cell body both sides, then install the piece, the latch pin, hemisphere head and locking ring are installed to lithium cell body both sides top and bottom one corner, set up logical groove and jack on the mount pad afterwards, then with the guide bar, first latch lever, the second latch lever, spring and latch block are installed to logical inslot, press first latch lever and second latch lever after accomplishing the centering, thereby compress the spring, then drive the latch block and do the motion of leaving, insert the latch pin from the jack at this moment, loosen the hand afterwards, under the effect of spring elasticity, drive first latch lever and second latch lever and do the motion of leaving, drive the latch block and move in opposite directions afterwards, thereby the locking groove on the latch block is blocked with the latch ring, thereby accomplish the quick concatenation installation of single lithium cell body, then, the spliced lithium battery bodies are fixed to the bottom surface inside the protective shell assembly, then limiting plates are installed on two sides of the bottom of the lithium battery body, holes are formed in the centers of two sides of the protective shell assembly, a shell door, a lime layer and a filter screen are installed in the center of one side of the protective shell assembly, a fan, a second handle, a box door and a case are installed in the center of the other side of the protective shell assembly, an air suction cover and an air inlet cover are installed in the centers of two sides inside the protective shell assembly respectively, then the single lithium battery bodies are connected in series, the lithium battery bodies after being connected in series are electrically connected with a top cover positive terminal, a top cover negative terminal and the fan on a top cover respectively through wires, and then the top cover is installed, so that installation and splicing are completed;
wherein in above-mentioned step six, the device after the concatenation installation is when using in step five, this body of lithium cell can send a large amount of heats, open chamber door and shell door this moment, open the fan immediately, the fan is with external cold air from shell door suction, cold air gets into inside the protective housing subassembly after the water absorption and the dust removal of lime layer and filter screen, after the reposition of redundant personnel of air inlet cover, the more even entering of air, the heat transfer that the lithium cell body sent is to the heating panel, then cold air takes away the heat, arrange the protective housing subassembly outside behind the quick-witted case, thereby accomplish the heat dissipation to the lithium cell body.
According to the technical scheme, the two ends of the center of the top cover are respectively provided with the top cover positive terminal and the top cover negative terminal.
According to the technical scheme, the protective shell assembly is communicated with the outside through the shell door, a first handle is installed on one side of the shell door, and a sealing ring is arranged at a gap between the shell door and the protective shell assembly.
According to the technical scheme, the case is communicated with the inside of the protective shell assembly, the case door is installed on one side of the case, the second handle is installed on one side of the case door, and the sealing ring is arranged at the gap between the case door and the case.
According to the technical scheme, the air inlet cover is arranged at the position, located on the periphery of the filter screen, of one side inside the protective shell assembly, and the air suction cover is arranged at the position, located on the case, of the other side inside the protective shell assembly.
According to the technical scheme, the bottoms of the two adjacent sides of the heat dissipation plate of the lithium battery body are respectively attached to one side of the limiting plate in the opposite direction, and the bottoms of the limiting plates are respectively fixedly connected with the two sides of the bottom surface inside the protective shell assembly.
According to the above technical scheme, in the first step, the negative electrode material is a carbon nanotube.
According to the technical scheme, in the first step, the coating thickness of the slurry is 68-71 mu m, and the compaction density of the slurry is 2.9g/cm & lt 3 & gt.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention uses the carbon nano tube as the cathode material, increases the active area, enlarges the diffusion area of lithium ions, simultaneously controls the coating thickness of the slurry to be 68-71 mu m, and the compaction density is 2.9g/cm < 3 >, increases the compaction density, is beneficial to improving the multiplying power of the battery, and greatly improves the charging and discharging efficiency.
2. According to the lithium battery pack, the fan rotates to drive the heat generated by the lithium battery body on the heat dissipation plate during working, so that the influence of overheating on the charging and discharging efficiency of the lithium battery body is avoided, a fire disaster is avoided, meanwhile, the built-in metal mesh in the protective shell assembly is installed, the puncturing of a sharp object is avoided, and the working safety of the lithium battery is greatly improved.
3. According to the invention, the locking block is used for locking and releasing the locking pin by pressing the first locking rod and the second locking rod, so that the lithium battery body can be rapidly spliced and disassembled, and the working efficiency is greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a perspective view of the overall construction of the present invention;
FIGS. 2 and 3 are front cross-sectional views of the overall construction of the present invention;
FIG. 4 is an enlarged schematic view of area A of FIG. 2 in accordance with the present invention;
FIG. 5 is an enlarged schematic view of the area B of FIG. 2 in accordance with the present invention;
FIG. 6 is an enlarged schematic view of the area C of FIG. 2 in accordance with the present invention;
FIG. 7 is an enlarged schematic view of the area D of FIG. 3 in accordance with the present invention;
FIG. 8 is a side cross-sectional view of the overall construction of the invention;
FIG. 9 is an enlarged schematic view of area E of FIG. 8 in accordance with the present invention;
FIG. 10 is a process flow diagram of the present invention;
in the figure: 1. a top cover; 2. a top cover positive terminal; 3. a top cover negative terminal; 4. a protective case assembly; 5. a shell door; 6. a first handle; 7. a lithium battery body; 8. a limiting plate; 9. a fan; 10. a second handle; 11. a box door; 12. a chassis; 13. an air suction hood; 14. a heat dissipation plate; 15. a through groove; 16. a guide rod; 17. a first locking lever; 18. mounting blocks; 19. a locking pin; 20. a limiting hole; 21. a mounting base; 22. a second locking lever; 23. a spring; 24. an air inlet cover; 25. a hemispherical head; 26. locking a ring; 27. a lime layer; 28. filtering with a screen; 29. a jack; 30. a locking block; 31. a locking groove; 401. a plastic outer shell layer; 402. a metal net is arranged inside.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-9, the present invention provides a technical solution: a super-high-rate lithium battery comprises a top cover 1, a top cover positive terminal 2, a top cover negative terminal 3, a protective shell assembly 4, a shell door 5, a first handle 6, a lithium battery body 7, a limiting plate 8, a fan 9, a second handle 10, a box door 11, a box 12, an air suction hood 13, a heat dissipation plate 14, a through groove 15, a guide rod 16, a first locking rod 17, a mounting block 18, a locking pin 19, a limiting hole 20, a mounting seat 21, a second locking rod 22, a spring 23, an air inlet hood 24, a hemispherical head 25, a locking ring 26, a lime layer 27, a filter screen 28, a jack 29, a locking block 30 and a locking groove 31, wherein the top cover positive terminal 2 and the top cover negative terminal 3 are respectively mounted at two central ends of the top cover 1, and the bottom edge of the top cover 1 is fixedly connected with the top of the protective shell assembly 4;
the protective shell assembly 4 consists of a plastic shell layer 401 and a built-in metal mesh 402, the bottom edge of the top cover 1 is fixedly connected with the top of the plastic shell layer 401, the built-in metal mesh 402 is arranged in the plastic shell layer 401, four independent lithium battery bodies 7 are fixedly arranged at the center of the bottom of the protective shell assembly 4, the lithium battery bodies 7 are positioned at the bottoms of two adjacent sides of the heat dissipation plate 14 and are respectively attached to one side of the limiting plate 8 opposite to each other, the bottoms of the limiting plates 8 are respectively and fixedly connected with two sides of the bottom surface in the protective shell assembly 4, so that the lithium battery bodies 7 are fixedly arranged, mounting blocks 18 are respectively arranged at one corners of the tops and the bottoms of two sides of the lithium battery bodies 7, one side center of each mounting block 18 is fixedly connected with one end of a locking pin 19, a plurality of locking rings 26 are uniformly arranged on the locking pins 19, one end of each locking pin 19 is provided with a hemispherical head 25, and one end of each locking pin 19 is inserted into a jack 29, the locking ring 26 on the locking pin 19 is clamped in the locking groove 31, the locking groove 31 is uniformly arranged on the inner circumference of one side of the locking block 30, the inner circumference of one side of the locking block 30 is respectively attached to the outer circumference of the locking pin 19, the center of one side of the locking block 30 adjacent to the locking block is respectively fixedly connected with one end of the first locking rod 17 and one end of the second locking rod 22, the other ends of the first locking rod 17 and the second locking rod 22 extend out of the through groove 15, the through groove 15 is arranged at the center of one side of the mounting seat 21, one side of the mounting seat 21 opposite to the mounting seat 21 is respectively arranged at the other two angular positions on the two sides of the lithium battery body 7, one end of the center of the second locking rod 22 is arranged in the limiting hole 20, the limiting hole 20 is arranged at one end of the center of the first locking rod 17, the centers of one side of the first locking rod 17 and the second locking rod 22 opposite to the spring 23 are respectively fixedly connected with the two ends of the spring 23, the spring 23 is wound at the center of the guide rod 16, and the two ends of the guide rod 16 penetrate through the first locking rod 17 and the second locking rod 22, and 16 both ends of guide bar respectively with logical groove 15 center one side top and bottom fixed connection, lithium cell body 7 both sides center evenly installs a plurality of heating panels 14, protective housing assembly 4 one side center installs shell door 5, and shell door 5 one side installs lime layer 27, lime layer 27 one side installs filter screen 28, protective housing assembly 4 opposite side center installs quick-witted case 12, and quick-witted case 12 internally mounted has fan 9, protective housing assembly 4 is linked together with the external world through shell door 5, shell door 5 one side installs the first in command 6, and the gap department of shell door 5 and protective housing assembly 4 is provided with the sealing washer, quick-witted case 12 is linked together with protective housing assembly 4 is inside, and quick-witted case 12 one side installs the chamber door 11, chamber door 11 one side installs the second in command 10, the gap department of chamber door 11 and quick-witted case 12 is provided with the sealing washer, be favorable to guaranteeing protective housing assembly 4 internal seal nature, protective housing assembly 4 inside one side is located filter screen 28 peripheral position and installs air inlet hood 24, and quick-witted case 12 position is installed to the inside opposite side of protective housing assembly 4 installs air suction hood 13, be favorable to even air inlet and air outlet.
Referring to fig. 10, the present invention provides a technical solution: a production process of an ultrahigh-rate lithium battery comprises the following steps: step one, manufacturing a pole piece; step two, manufacturing a battery cell; step three, packaging the battery; step four, carrying out volume separation; fifthly, mounting and splicing; sixthly, dissipating heat by using a fan;
in the first step, firstly, mixing an electrode active material, a binder, a solvent and the like together, stirring by a stirrer to form slurry, uniformly coating the prepared slurry on a current collector by using a coating machine, wherein the negative electrode material is a carbon nano tube, compacting and drying to form a positive plate and a negative plate, the coating thickness of the slurry is 68-71 mu m, the compaction density of the slurry is 2.9g/cm & lt 3 & gt, and then punching and cutting the plates into uniform sizes;
in the second step, the polar plate manufactured and punched in the first step is wound into a battery cell by a winding machine, then the wound battery cell is arranged in a shell of a lithium battery body 7, and then electrolyte is injected into the battery cell by an electrolyte injection machine to finish the manufacture of the battery cell;
in the third step, the positive electrode lug plate, the negative electrode lug plate, the cover plate and the binding post of the cover plate of the lithium battery body 7 are installed on the basis of the second step, so that the packaging of the lithium battery body 7 is completed;
in the fourth step, the lithium battery body 7 packaged in the third step is charged and activated to generate voltage, and the capacity of the battery is tested;
in the fifth step, the heat dissipation plates 14 are installed on two sides of the lithium battery body 7, then the installation blocks 18, the locking pins 19, the hemispherical heads 25 and the locking rings 26 are installed on one corner of the top and the bottom of the lithium battery body 7 on two sides, then the through grooves 15 and the insertion holes 29 are formed on the installation bases 21, then the guide bar 16, the first locking bar 17, the second locking bar 22, the spring 23 and the locking block 30 are installed in the through slot 15, and after completion, the first locking bar 17 and the second locking bar 22 are centrally pressed, thereby compressing the spring 23 and consequently the locking block 30, while inserting the locking pin 19 from the insertion hole 29, and subsequently releasing the hand, under the action of the elastic force of the spring 23, the first locking rod 17 and the second locking rod 22 are driven to move away from each other, and then the locking blocks 30 are driven to move towards each other, so that the locking groove 31 of the locking block 30 is engaged with the locking ring 26, thereby completing the quick-splice installation of the individual lithium battery cells 7, and then fixing the spliced lithium battery cells 7 to the inner bottom surface of the protective case assembly 4, then the limiting plates 8 are arranged at the two sides of the bottom of the lithium battery body 7, then holes are formed in the centers of the two sides of the protective shell assembly 4, the shell door 5, the lime layer 27 and the filter screen 28 are arranged at the center of one side of the protective shell component 4, the fan 9, the second handle 10, the box door 11 and the machine box 12 are arranged at the center of the other side of the protective shell component 4, the air suction cover 13 and the air inlet cover 24 are respectively installed at the centers of two sides in the protective shell assembly 4, then the single lithium battery bodies 7 are connected in series, the lithium battery bodies 7 connected in series are respectively and electrically connected with the top cover positive terminal 2, the top cover negative terminal 3 and the fan 9 on the top cover 1 through wires, and then the top cover 1 is installed, so that the installation and the splicing are completed;
wherein in the above-mentioned sixth step, when the device after the concatenation installation is in use in fifth step, lithium cell body 7 can send a large amount of heats, open chamber door 11 and shell door 5 this moment, open fan 9 immediately, fan 9 is with external cold air from shell door 5 suction, cold air gets into inside protective housing subassembly 4 after the absorption of lime layer 27 and filter screen 28 and the dust removal, after the reposition of redundant personnel of air inlet cover 24, the more even entering of air, the heat transfer that lithium cell body 7 sent is on heating panel 14, then cold air takes away the heat, discharge to the protective housing subassembly 4 outside behind quick-witted case 12, thereby accomplish the heat dissipation to lithium cell body 7.
Based on the above, the invention has the advantages that the carbon nanotube is used as the negative electrode material, the active area is increased, the diffusion area of lithium ions is enlarged, the coating thickness of the slurry is controlled to be 68-71 μm, the compaction density is 2.9g/cm < 3 >, the compaction density is increased, the multiplying power of the battery is favorably improved, the charging and discharging efficiency is greatly improved, the heat generated when the fan 9 rotates to drive the protective shell assembly 4 on the heat dissipation plate 14 to work is favorably avoided, the influence of overheating on the charging and discharging efficiency of the protective shell assembly 4 is favorably avoided, the occurrence of fire is avoided, meanwhile, the installation of the built-in metal mesh 402 in the protective shell assembly 4 is matched, the puncture of a sharp object is favorably avoided, the working safety of the lithium battery body 7 is greatly improved, meanwhile, the locking and the loosening of the locking block 30 on the locking pin 19 are realized by pressing the first locking rod 17 and the second locking rod 22, the quick splicing and disassembling of the lithium battery body 7 are favorably realized, and the working efficiency is greatly improved.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a super high magnification lithium cell, including top cap (1), top cap positive terminal (2), top cap negative terminal (3), protective case subassembly (4), shell door (5), the first in command (6), lithium cell body (7), limiting plate (8), fan (9), second in command (10), chamber door (11), quick-witted case (12), induced draft hood (13), heating panel (14), logical groove (15), guide bar (16), first check lock pole (17), installation block (18), fitting pin (19), spacing hole (20), mount pad (21), second fitting lock pole (22), spring (23), air inlet cover (24), hemisphere head (25), locking ring (26), lime layer (27), filter screen (28), jack (29), fitting block (30) and locking groove (31), its characterized in that: the edge of the bottom of the top cover (1) is fixedly connected with the top of the protective shell component (4);
the protective shell component (4) is composed of a plastic shell layer (401) and a built-in metal mesh (402), the edge of the bottom of the top cover (1) is fixedly connected with the top of the plastic shell layer (401), the built-in metal mesh (402) is arranged inside the plastic shell layer (401), four independent lithium battery bodies (7) are fixedly installed at the center of the bottom of the protective shell component (4), installation blocks (18) are installed at the tops of two sides and one corner of the bottom of each lithium battery body (7) respectively, the center of one side of each installation block (18) is fixedly connected with one end of a locking pin (19), a plurality of locking rings (26) are uniformly arranged on each locking pin (19), a hemispherical head (25) is installed at one end of each locking pin (19), one end of each locking pin (19) is inserted into a jack (29), the locking rings (26) on each locking pin (19) are clamped in a locking groove (31), the locking grooves (31) are uniformly formed in the inner circumference of one side of each locking block (30), the locking blocks (30) are attached to one side of the inner circumference, the locking blocks (19) respectively, one side of each locking block (30) is attached to a second locking rod (17), and a second locking rod (17) extends out of a first locking rod (17), lead to groove (15) and set up at mount pad (21) one side center, mount pad (21) is in opposite directions one side and is installed respectively in lithium cell body (7) both sides other two angular positions, second check lock lever (22) center one end is located inside spacing hole (20), spacing hole (20) are set up in first check lock lever (17) center one end, first check lock lever (17) and second check lock lever (22) are in opposite directions one side center respectively with spring (23) both ends fixed connection, spring (23) cross-under are at guide bar (16) center, first check lock lever (17) and second check lock lever (22) are run through at guide bar (16) both ends, and guide bar (16) both ends respectively with lead to groove (15) center one side top and bottom fixed connection, a plurality of heating panels (14) are evenly installed at lithium cell body (7) both sides center, protection shell subassembly (4) one side center installs shell door (5), and shell door (5) one side installs lime layer (27), filter screen (28) are installed to lime layer (27) one side, quick-witted case subassembly (4) and quick-witted case (12) are installed to quick-witted case (12).
2. The ultra-high rate lithium battery of claim 1, wherein: and a top cover positive terminal (2) and a top cover negative terminal (3) are respectively installed at the two central ends of the top cover (1).
3. The ultra-high rate lithium battery of claim 1, wherein: the protective shell assembly (4) is communicated with the outside through a shell door (5), a first handle (6) is installed on one side of the shell door (5), and a sealing ring is arranged at a gap between the shell door (5) and the protective shell assembly (4).
4. The ultra-high rate lithium battery of claim 1, wherein: the box (12) is communicated with the inside of the protective shell assembly (4), a box door (11) is installed on one side of the box (12), a second handle (10) is installed on one side of the box door (11), and a sealing ring is arranged at the gap between the box door (11) and the box (12).
5. The ultra-high-rate lithium battery according to claim 1, characterized in that: the air inlet cover (24) is installed at the peripheral position of the filter screen (28) on one side inside the protective shell assembly (4), and the air suction cover (13) is installed at the position of the case (12) on the other side inside the protective shell assembly (4).
6. The ultra-high rate lithium battery of claim 1, wherein: the lithium battery body (7) is located at the bottoms of two adjacent sides of the heat dissipation plate (14) and is attached to one side of the limiting plate (8) in the opposite direction, and the bottoms of the limiting plate (8) are fixedly connected with two sides of the bottom surface inside the protective shell assembly (4) respectively.
7. A production process of an ultra-high rate lithium battery comprises the following steps: step one, manufacturing a pole piece; step two, manufacturing the battery core; step three, packaging the battery; step four, capacity grading and formation; step five, mounting and splicing; sixthly, dissipating heat by using a fan; the method is characterized in that:
in the first step, firstly, mixing an electrode active material, a binder and a solvent together, stirring by a stirrer to form slurry, uniformly coating the prepared slurry on a current collector by using a coating machine, then compacting and drying to form a positive plate and a negative plate, and then punching and cutting the plate into uniform sizes;
in the second step, the polar plate manufactured in the first step and punched is wound into a battery cell by a winding machine, then the wound battery cell is arranged in a shell of a lithium battery body (7), and then electrolyte is injected into the battery cell by an electrolyte injection machine to finish the manufacture of the battery cell;
in the third step, the positive lug plate, the negative lug plate, the cover plate and the binding post of the cover plate of the lithium battery body (7) are installed on the basis of the second step, so that the packaging of the lithium battery body (7) is completed;
in the fourth step, the lithium battery body (7) packaged in the third step is charged and activated to generate voltage, and the capacity of the battery is tested;
in the fifth step, the heat dissipation plate (14) is installed on two sides of the lithium battery body (7), then the installation block (18), the locking pin (19), the hemispherical head (25) and the locking ring (26) are installed on one corner of the top and the bottom of two sides of the lithium battery body (7), then the through groove (15) and the inserting hole (29) are formed in the installation seat (21), then the guide rod (16), the first locking rod (17), the second locking rod (22), the spring (23) and the locking block (30) are installed in the through groove (15), after the centering is completed, the first locking rod (17) and the second locking rod (22) are pressed, the spring (23) is compressed and then the locking block (30) is driven to move away from each other, at the moment, the locking pin (19) is inserted into the inserting hole (29), then the hand is loosened, under the elastic force of the spring (23), the first locking rod (17) and the second locking rod (22) are driven to move away from each other, then the locking block (30) is driven to move towards each other, so that the locking groove (31) on the locking block (30) and the locking block (26) is clamped with the bottom of the lithium battery body (7), and then the lithium battery body is quickly installed on the bottom of the lithium battery body (7), and then the lithium battery shell (8) is quickly, then, holes are formed in the centers of two sides of a protective shell assembly (4), a shell door (5), a lime layer (27) and a filter screen (28) are installed in the center of one side of the protective shell assembly (4), a fan (9), a second handle (10), a box door (11) and a case (12) are installed in the center of the other side of the protective shell assembly (4), an air suction cover (13) and an air inlet cover (24) are installed in the centers of the two sides in the protective shell assembly (4) respectively, then single lithium battery bodies (7) are connected in series, the lithium battery bodies (7) which are connected in series are electrically connected with a top cover positive terminal (2), a top cover negative terminal (3) and the fan (9) on a top cover (1) through conducting wires respectively, and then the top cover (1) is installed, so that installation and splicing are completed;
in the sixth step, when the device spliced and installed in the fifth step is used, the lithium battery body (7) can emit a large amount of heat, the box door (11) and the shell door (5) are opened at the moment, the fan (9) is opened immediately, the fan (9) sucks outside cold air from the shell door (5), the cold air enters the inside of the protective shell assembly (4) after water absorption and dust removal through the lime layer (27) and the filter screen (28), the air enters more uniformly after being shunted through the air inlet cover (24), the heat emitted by the lithium battery body (7) is transferred to the heat dissipation plate (14), the cold air takes away the heat, the cold air is discharged to the outside of the protective shell assembly (4) after passing through the case (12), and therefore heat dissipation of the lithium battery body (7) is completed.
8. The production process of the ultra-high-rate lithium battery as claimed in claim 7, wherein: in the first step, the cathode material is carbon nanotubes.
9. The production process of the ultra-high rate lithium battery as claimed in claim 7, wherein: in the first step, the coating thickness of the slurry is 68-71 μm, and the compacted density of the slurry is 2.9g/cm 3.
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