CN112968242A - Solid-state lithium battery with wide-temperature charging and discharging structure and manufacturing method thereof - Google Patents
Solid-state lithium battery with wide-temperature charging and discharging structure and manufacturing method thereof Download PDFInfo
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- CN112968242A CN112968242A CN202110140687.9A CN202110140687A CN112968242A CN 112968242 A CN112968242 A CN 112968242A CN 202110140687 A CN202110140687 A CN 202110140687A CN 112968242 A CN112968242 A CN 112968242A
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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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
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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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
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
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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
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a solid-state lithium battery with a wide-temperature charging and discharging structure and a manufacturing method thereof, and the solid-state lithium battery comprises a housing base assembly, a housing top cover assembly, a rotating shaft, a handle, a slide block, a slide rail, a locking head, a heat dissipation hole, a PCB (printed circuit board), a fixing plate, a lithium battery body, a heating plate, a copper plate, a fixing block, a fixing rod, a spring, a pulley, a steel rope, a mounting block, a fixing arm, a central hole, a mounting hole and a jack, wherein the heating plate and the heat dissipation hole are arranged to be matched with the real-time monitoring of the PCB, so that the heating and the heat dissipation of the lithium battery body are realized, the high-temperature and low-temperature charging and discharging performances of the solid-state lithium battery are favorably improved, the collision and the vibration of the lithium battery body in the working process are favorably reduced by, and then the sliding block slides along the sliding rail, so that the heat dissipation holes can be opened and closed quickly.
Description
Technical Field
The invention relates to the technical field of solid-state batteries, in particular to a solid-state lithium battery with a wide-temperature charging and discharging structure and a manufacturing method thereof.
Background
A solid-state battery is a battery technology, and is a battery using a solid electrode and a solid electrolyte, unlike a lithium ion battery and a lithium ion polymer battery that are generally used today.
Solid-state lithium cell is more stable excellent than ordinary lithium cell performance, but has the same fault with ordinary lithium cell, the performance is discounted greatly at low temperature and high temperature, solid-state lithium cell's low temperature and high temperature performance have been reduced, and in-process using and transporting, along with vibration and collision, can cause solid-state lithium cell's damage, the condition of explosion can appear even seriously, greatly reduced solid-state lithium cell's the security of use, wide temperature charge-discharge needs normal charge-discharge at high temperature and low temperature simultaneously, thereby need possess heat preservation and radiating efficiency simultaneously, the switching process is more loaded down with trivial details, waste time and energy, and work efficiency is reduced.
Disclosure of Invention
The present invention is directed to a solid-state lithium battery with a wide temperature range charge/discharge structure and a method for manufacturing the same, so as to solve the problems of the background art.
In order to solve the technical problems, the invention provides the following technical scheme: a solid-state lithium battery with a wide-temperature charging and discharging structure comprises a shell base assembly, a shell top cover assembly, a rotating shaft, a handle, a sliding block, a sliding rail, a locking head, a heat dissipation hole, a PCB (printed Circuit Board), a fixing plate, a lithium battery body, a heating plate, a copper plate, a fixing block, a fixing rod, a mounting groove, a spring, a fixing ring, a fixing shaft, a pulley, a steel rope, a mounting block, a fixing arm, a central hole, a mounting hole and a jack, wherein the top of the shell top cover assembly is fixedly connected with;
the top cover assembly of the shell consists of a first shell body, a first heat insulation layer and a first inner shell body, the top parts of the first shell body, the first heat insulation layer and the first inner shell body are all bonded with the bottom part of the base assembly of the shell, the inner side wall of the first shell body is fixedly connected with the outer side wall of the first heat insulation layer, and the inner side wall of the first heat insulation layer is fixedly connected with the inner side wall of the first inner shell body;
the shell base component consists of a second outer shell, a second heat-insulating layer and a second inner shell, the top parts of the first outer shell, the first heat-insulating layer and the first inner shell are fixedly bonded with the bottom parts of the second outer shell, the second heat-insulating layer and the second inner shell respectively, the inner side wall of the second outer shell is fixedly connected with the outer side wall of the second heat-insulating layer, the inner side wall of the second heat-insulating layer is fixedly connected with the outer side wall of the second inner shell, heat dissipation holes are respectively formed at the top ends of the centers of the two sides of the shell top cover component, slide rails are installed at the centers of the two sides of the shell top cover component, slide blocks are arranged in the slide rails, mounting grooves are formed in the centers of the slide blocks, one side centers of the mounting grooves are welded with one sides of fixed blocks, the centers of, one end of the center of the steel rope penetrates through the center hole, the center hole is arranged in the center of the fixing ring, one side of the fixing ring is welded with one end of the spring, the other end of the spring is fixedly connected with the periphery of the center of one end of the locking head, the outer circumference of the fixing ring is respectively and fixedly connected with the inner circumference of one end of the center of the mounting hole, the mounting holes are respectively arranged at the centers of the two sides of the sliding block, the other end of the steel rope is fixedly connected with the center of one end of the locking head, the other end of the locking head extends out of the jacks which are respectively arranged at the middle upper parts of the two sides of the slide rail, the center of the bottom surface in the second inner shell is attached to the bottom of the lithium battery body, the bottom and the periphery of the top of the lithium battery body are respectively sleeved with a fixing plate, and the fixed plate periphery respectively with second interior casing bottom and top inside wall fixed connection, lithium cell body well upper portion has cup jointed the hot plate, the peripheral fixed mounting of hot plate has a plurality of copper.
A manufacturing method of a solid-state lithium battery with a wide-temperature charging and discharging structure comprises the following steps of manufacturing a pole piece; step two, spirally injecting powder; step three, hot-pressing and compounding; step four, packaging the battery; fifthly, formation testing; step six, splicing and assembling; step seven, wide temperature charging and discharging;
in the first step, firstly, mixing an electrode active material, a binder, a solvent and the like together, stirring by a stirrer to respectively form positive slurry and negative slurry, uniformly coating the prepared slurry on a current collector by using a film making machine, then compacting and drying to form a positive plate and a negative plate, and then punching the plates into positive plates and negative plates with uniform sizes;
in the second step, the anode plate and the cathode plate which are cut in the first step are taken, and solid electrolyte powder is uniformly injected between the anode plate and the cathode plate in a spiral powder injection mode;
in the third step, laminating the positive plate and the negative plate which are subjected to powder injection in the second step, and then performing hot-pressing compounding to prepare a battery core for later use;
in the fourth step, the battery core prepared in the third step is placed in a battery shell, then a positive terminal, a negative terminal, a positive lug plate and a negative lug plate of the battery are well installed, then packaging is carried out, and a lithium battery body is prepared for standby after packaging is completed;
in the fifth step, the lithium battery body packaged in the fourth step is charged and activated to generate voltage, and the capacity of the lithium battery body is tested;
wherein in the sixth step, the lithium battery body which is formed and tested in the fifth step is taken out, the PCB, the heating plate, the copper plate and the fixing plate are sequentially installed on the lithium battery body, then the first outer shell, the first heat insulation layer and the first inner shell are sequentially adhered to form an outer shell top cover assembly, then the outer shell base assembly is sequentially adhered to form an outer shell base assembly by the second outer shell, the second heat insulation layer and the second inner shell, heat dissipation holes are formed in two sides of the outer shell base assembly, then sliding rails with jacks are installed on two sides of the outer shell base assembly, then installation grooves and installation holes are formed in the sliding blocks, then the fixing shaft with the locking head, the spring and the fixing ring are installed in the installation holes, then the steel rope is welded with the locking head, then the fixing shaft, the pulley, the installation block, the fixing arm, the fixing block and the rotating shaft are installed, the other end of the steel rope is fixedly connected with one end of the fixed rod, then the upper cover of the sliding block is fixed, then the handle is arranged on the rotating shaft, the sliding block is arranged on the sliding rail after the installation is finished, the insertion of the locking head and the insertion hole is ensured, the slide block just covers the heat dissipation holes, and then the lithium battery body, the heating plate and the PCB are electrically connected, then sleeving the top and the bottom of the connected lithium battery body with an upper fixing plate, then installing the lithium battery body into a shell base assembly, wherein the shell base assembly is in interference fit with the fixing plate, the fixing plate is made of rubber and has elasticity, so that the impact and vibration on the lithium battery body can be reduced, then electrically connecting the PCB with the positive electrode and the negative electrode on the shell top cover assembly, and then fixedly connecting the shell top cover assembly with the shell base assembly, thereby completing splicing and assembling to obtain the solid-state lithium battery;
wherein in the seventh step, when the solid lithium battery assembled in the sixth step is in use, the temperature acquisition module on the PCB acquires the working temperature of the lithium battery body, when the temperature is lower than the normal working temperature, the acquisition module transmits a signal to the main control chip on the PCB, then the drive module is used for driving the heating plate to heat the lithium battery body, and simultaneously the first heat insulation layer and the second heat insulation layer are respectively arranged inside the shell top cover assembly and the shell base assembly, so that the loss of heat is reduced, the normal charge and discharge of the lithium battery body at low temperature is ensured, when the temperature is higher than the normal working temperature, the acquisition module transmits the signal to the main control chip on the PCB, and then transmits a buzzer to buzz so as to remind a worker that the lithium battery body is overheated, and at the moment, the handle is rotated to drive the rotating shaft to, thereby the pulling steel cable, then drive the first centering motion of locking, compression spring immediately, thereby loosen the joint of locking head and jack, slide the slider along the slide rail this moment, thereby open the louvre, the ventilation cooling of being convenient for, because the installation of the copper on the hot plate, play the effect of heating panel, lithium cell body's heat dissipation has been accelerated, be favorable to lithium cell body still can normally charge and discharge under high temperature, be favorable to promoting lithium cell body's wide temperature charge and discharge's ability, the temperature when lithium cell body is too high, and the workman is not in time discover, circuit protection module's fuse in the PCB board can fuse by oneself, stop charge and discharge, be favorable to the security that hoisting device used.
According to the technical scheme, the positive terminal and the negative terminal are respectively installed on two sides of the center of the top of the first outer shell, the positive terminal and the negative terminal are electrically connected with the PCB, and the PCB is electrically connected with the positive electrode and the negative electrode of the lithium battery body.
According to the technical scheme, the top and the bottom of the center of the steel rope are respectively located on the center of one side of the pulley in opposite directions, the pulley is sleeved at the center of the fixed shaft, the fixed shaft is rotatably connected with the pulley, the two ends of the fixed shaft are respectively fixedly connected with the top and the bottom of the center of one side of the mounting block in opposite directions, the top and the bottom of the mounting block are respectively fixedly connected with the two ends of the center of one side of the mounting block in opposite directions, and the other end of the mounting block is respectively fixedly connected with the top and the.
According to the technical scheme, the other end of the rotating shaft penetrates through the center of one side of the sliding block, and the other end of the rotating shaft is fixedly connected with the center of one side of the handle.
According to the technical scheme, the PCB is installed at the bottom of the center of one side of the lithium battery body, and the main control chip, the temperature acquisition module, the driving module, the circuit protection module and the buzzer are installed on the PCB.
According to the technical scheme, in the first step, the stirrer is a magnetic stirrer, the rotating speed is 500-.
According to the above technical scheme, in the fifth step, the charging mode adopts constant current charging, the charging current is 130-.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the solid-state lithium battery, the heating plate and the heat dissipation holes are arranged, and the real-time monitoring of the PCB is matched, so that the heating and the heat dissipation of the lithium battery body are realized, the high-temperature and low-temperature charge and discharge performance of the solid-state lithium battery is favorably improved, and the application range of the battery is widened.
2. According to the invention, the lithium battery body is fixed by the rubber fixing plate, so that the collision and vibration of the lithium battery body in the working process are reduced, the occurrence of damage and explosion of the lithium battery body is avoided, and the use safety is improved.
3. According to the invention, the locking head and the jack are clamped and released by rotating and releasing the handle, and then the sliding block slides along the sliding rail, so that the heat dissipation holes can be opened and closed quickly, and the working efficiency can be 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 structure of the present invention;
FIG. 2 is an elevational view of the overall construction of the present invention;
FIG. 3 is a front cross-sectional view of the overall construction of the present invention;
FIG. 4 is a side view of the overall structure of the present invention;
FIGS. 5 and 6 are side cross-sectional views of the overall construction of the invention;
FIG. 7 is an enlarged schematic view of area A of FIG. 5 in accordance with the present invention;
FIG. 8 is a top cross-sectional view of the overall structure of the present invention;
FIG. 9 is a flow chart of a method of the present invention;
in the figure: 1. a housing base assembly; 2. a housing header assembly; 3. a rotating shaft; 4. a handle; 5. a slider; 6. a slide rail; 7. a locking head; 8. heat dissipation holes; 9. a PCB board; 10. a fixing plate; 11. a lithium battery body; 12. heating plates; 13. a copper plate; 14. a fixed block; 15. fixing the rod; 16. mounting grooves; 17. a spring; 18. a fixing ring; 19. a fixed shaft; 20. a pulley; 21. a steel cord; 22. mounting blocks; 23. a fixed arm; 24. a central bore; 25. mounting holes; 26. a jack; 201. a first outer case; 202. a first insulating layer; 203. a first inner housing; 101. a second outer housing; 102. a second thermal insulation layer; 103. a second inner housing.
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. 1-8, the present invention provides a technical solution: a solid lithium battery with a wide-temperature charging and discharging structure comprises a housing base assembly 1, a housing top cover assembly 2, a rotating shaft 3, a handle 4, a sliding block 5, a sliding rail 6, a locking head 7, a heat dissipation hole 8, a PCB 9, a fixing plate 10, a lithium battery body 11, a heating plate 12, a copper plate 13, a fixing block 14, a fixing rod 15, a mounting groove 16, a spring 17, a fixing ring 18, a fixing shaft 19, a pulley 20, a steel rope 21, a mounting block 22, a fixing arm 23, a center hole 24, a mounting hole 25 and a jack 26, wherein the top of the housing top cover assembly 2 is fixedly connected with the bottom of the housing base;
the shell top cover assembly 2 consists of a first outer shell 201, a first heat insulation layer 202 and a first inner shell 203, the tops of the first outer shell 201, the first heat insulation layer 202 and the first inner shell 203 are all bonded with the bottom of the shell base assembly 1, the inner side wall of the first outer shell 201 is fixedly connected with the outer side wall of the first heat insulation layer 202, and the inner side wall of the first heat insulation layer 202 is fixedly connected with the inner side wall of the first inner shell 203;
the shell base component 1 comprises a second outer shell 101, a second heat-insulating layer 102 and a second inner shell 103, the tops of the first outer shell 201, the first heat-insulating layer 202 and the first inner shell 203 are respectively fixedly bonded with the bottoms of the second outer shell 101, the second heat-insulating layer 102 and the second inner shell 103, the inner side wall of the second outer shell 101 is fixedly connected with the outer side wall of the second heat-insulating layer 102, the inner side wall of the second heat-insulating layer 102 is fixedly connected with the outer side wall of the second inner shell 103, a positive terminal and a negative terminal are respectively installed on two sides of the center of the top of the first outer shell 201, the positive terminal and the negative terminal are electrically connected with a PCB 9, the PCB 9 is electrically connected with a positive electrode and a negative electrode of a lithium battery body 11, heat dissipation holes 8 are respectively formed in the top ends of the centers of two sides of, the center of the inner part of the sliding block 5 is provided with a mounting groove 16, the center of one side of the mounting groove 16 is welded with one side of a fixed block 14, the center of the other side of the fixed block 14 is rotatably connected with one end of a rotating shaft 3, the other end of the rotating shaft 3 penetrates through the center of one side of the sliding block 5, the other end of the rotating shaft 3 is fixedly connected with the center of one side of a handle 4, so that the rotating shaft 3 can be twisted by the handle 4, the two sides of one end of the rotating shaft 3 are respectively and fixedly connected with the opposite ends of fixed rods 15, the other ends of the fixed rods 15 are respectively and fixedly connected with one end of a steel rope 21, one end of the center of the steel rope 21 penetrates through a central hole 24, the central hole 24 is arranged at the center of a fixed ring 18, one side of the fixed ring, the other end of the steel rope 21 is fixedly connected with the center of one end of the locking head 7, the other end of the locking head 7 extends out of the jack 26, the top and the bottom of the center of the steel rope 21 are respectively positioned on the center of one side opposite to the pulley 20, the pulley 20 is sleeved at the center of the fixed shaft 19, the fixed shaft 19 is rotatably connected with the pulley 20, two ends of the fixed shaft 19 are respectively fixedly connected with the top and the bottom of the center of one side opposite to the mounting block 22, the top and the bottom of the mounting block 22 are respectively fixedly connected with two ends of the center opposite to the fixed arm 23, the other end of the fixed arm 23 is respectively fixedly connected with the top and the bottom of two ends of the inner side wall of the mounting groove 16, so that the steel rope 21 can be guided by the pulley 20, the jack 26 is respectively arranged on the middle upper parts of two sides of the sliding rail 6, temperature acquisition module, drive module, circuit protection module and bee calling organ are favorable to the normal work through PCB board 9, and lithium cell body 11 bottom has cup jointed fixed plate 10 with the top periphery respectively, and fixed plate 10 periphery respectively with second interior casing 103 bottom and top inside wall fixed connection, and lithium cell body 11 middle and upper portion has cup jointed hot plate 12, and the peripheral fixed mounting of hot plate 12 has a plurality of copper 13.
Referring to fig. 9, the present invention provides a technical solution: a manufacturing method of a solid-state lithium battery with a wide-temperature charging and discharging structure comprises the following steps of manufacturing a pole piece; step two, spirally injecting powder; step three, hot-pressing and compounding; step four, packaging the battery; fifthly, formation testing; step six, splicing and assembling; step seven, wide temperature charging and discharging;
in the first step, firstly, mixing an electrode active material, a binder, a solvent and the like together, stirring by a stirrer to respectively form positive slurry and negative slurry, wherein the stirrer is a magnetic stirrer, the rotating speed is 500-800r/min, the stirring time is 20-30min, the prepared slurry is uniformly coated on a current collector by a film making machine, then, a positive plate and a negative plate are formed after compacting and drying, and then, the electrode plate is punched into a positive plate and a negative plate with uniform sizes;
in the second step, the anode plate and the cathode plate which are cut in the first step are taken, and solid electrolyte powder is uniformly injected between the anode plate and the cathode plate in a spiral powder injection mode;
in the third step, laminating the positive plate and the negative plate which are subjected to powder injection in the second step, and then performing hot-pressing compounding to prepare a battery core for later use;
in the fourth step, the battery core prepared in the third step is placed in a battery shell, then a positive terminal, a negative terminal, a positive lug plate and a negative lug plate of the battery are well installed, then packaging is carried out, and a lithium battery body 11 is prepared for standby after packaging is completed;
in the fifth step, the lithium battery body 11 packaged in the fourth step is charged and activated to generate voltage, the charging mode adopts constant current charging, the charging current is 130-;
in the sixth step, the lithium battery body 11 which is formed in the fifth step and is tested is taken out, the PCB 9, the heating plate 12, the copper plate 13 and the fixing plate 10 are sequentially mounted on the lithium battery body 11, then the first outer shell 201, the first heat insulation layer 202 and the first inner shell 203 are sequentially bonded to form the shell top cover assembly 2, then the shell base assembly 1 is sequentially bonded to form the shell base assembly 1 by the second outer shell 101, the second heat insulation layer 102 and the second inner shell 103, heat dissipation holes 8 are formed in two sides of the shell base assembly 1, then the slide rails 6 with the jacks 26 are mounted on two sides of the shell base assembly 1, then the mounting grooves 16 and the mounting holes 25 are formed in the slide blocks 5, then the locking heads 7, the springs 17 and the fixing rings 18 are mounted in the mounting holes 25, the steel ropes 21 are welded with the locking heads 7, and then the fixing shafts 19, the pulleys 20 and the fixing plates are, The installation block 22, the fixed arm 23, the fixed block 14, the fixed rod 15 and the rotating shaft 3 are installed inside the installation groove 16, the steel rope 21 penetrates through a center hole 24 in the middle of the fixed ring 18, the other end of the steel rope 21 is fixedly connected with one end of the fixed rod 15, then the upper cover of the sliding block 5 is fixed, then the handle 4 is installed on the rotating shaft 3, the sliding block 5 is installed on the sliding rail 6 after installation is completed, the locking head 7 is ensured to be inserted into the jack 26, the sliding block 5 just covers the heat dissipation hole 8, then the lithium battery body 11, the heating plate 12 and the PCB 9 are electrically connected, then the top and the bottom of the lithium battery body 11 after connection are sleeved with the upper fixed plate 10, then the lithium battery body 11 is installed inside the shell base assembly 1, the shell base assembly 1 is in interference fit with the fixed plate 10, the fixed plate 10 is made, then, the PCB 9 is electrically connected with the positive electrode and the negative electrode on the shell top cover assembly 2, and then the shell top cover assembly 2 is fixedly connected with the shell base assembly 1, so that the solid-state lithium battery is manufactured by splicing and assembling;
in the seventh step, when the solid lithium battery assembled in the sixth step is in use, the temperature acquisition module on the PCB board 9 acquires the working temperature of the lithium battery body 11, when the temperature is lower than the normal working temperature, the acquisition module transmits a signal to the main control chip on the PCB board 9, then the driving module is used to drive the heating plate 12 to heat the lithium battery body 11, meanwhile, the first heat insulation layer 202 and the second heat insulation layer 102 are respectively arranged inside the housing top cover assembly 2 and the housing base assembly 1, so that the loss of heat is reduced, normal charge and discharge of the lithium battery body 11 at low temperature are ensured, when the temperature is higher than the normal working temperature, the acquisition module transmits a signal to the main control chip on the PCB board 9, and then the signal is transmitted to the buzzer to warn the worker that the lithium battery body 11 is overheated, and at the moment, the handle 4 is rotated to drive the, drive dead lever 15 immediately and rotate, thereby stimulate the steel cable 21, then drive locking head 7 centering motion, compression spring 17 immediately, thereby loosen the joint of locking head 7 and jack 26, slide slider 5 along slide rail 6 this moment, thereby open louvre 8, be convenient for ventilate and dispel the heat, because the installation of copper 13 on the hot plate 12, the effect of heating panel is played, the heat dissipation of lithium cell body 11 has been accelerated, be favorable to still can normally charge and discharge under lithium cell body 11 high temperature, be favorable to promoting the wide temperature of lithium cell body 11 and charge and discharge's ability, when lithium cell body 11's temperature is too high, and the workman does not discover in time, the fuse of the circuit protection module in the PCB board 9 can fuse by oneself, stop charging and discharging, be favorable to the security that the hoisting device used.
Based on the above, the invention has the advantages that when the lithium battery pack is used, the handle 4 is rotated to drive the steel rope 21 to be tightened, then the locking head 7 is released from being clamped with the jack 26, then the sliding block 5 is slid along the direction of the sliding rail 6, so that the heat dissipation hole 8 is rapidly opened, the sliding block 5 is slid in the opposite direction, the locking head 7 is clamped with the jack 26 under the action of the restoring force of the spring 17, the rapid opening and closing of the heat dissipation hole 8 are favorably realized, the working efficiency is improved, meanwhile, the lithium battery body 11 is fixed through the rubber fixing plate 10, the collision and vibration of the lithium battery body 11 in the working process are favorably reduced, the damage and explosion of the lithium battery body 11 are avoided, the use safety is improved, the heating of the lithium battery body 11 by the heating plate 12 is matched with the heat preservation effect of the first heat insulation layer 202 and the second heat insulation layer 102, the charging and discharging, the arrangement of the heat dissipation holes 8 and the copper plate 13 is beneficial to rapid heat dissipation of the lithium battery body 11, and the charge and discharge efficiency of the lithium battery body 11 at high temperature is improved.
It is noted that, herein, relational terms such as first and second, and the like may be 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 (8)
1. The utility model provides a solid-state lithium cell of wide temperature charge-discharge structure, including shell base subassembly (1), shell top cap subassembly (2), pivot (3), handle (4), slider (5), slide rail (6), locking head (7), louvre (8), PCB board (9), fixed plate (10), lithium cell body (11), hot plate (12), copper (13), fixed block (14), dead lever (15), mounting groove (16), spring (17), solid fixed ring (18), fixed axle (19), pulley (20), steel cable (21), installation piece (22), fixed arm (23), centre bore (24), mounting hole (25) and jack (26), its characterized in that: the top of the shell top cover assembly (2) is fixedly connected with the bottom of the shell base assembly (1);
the shell top cover assembly (2) comprises a first outer shell (201), a first heat insulation layer (202) and a first inner shell (203), the tops of the first outer shell (201), the first heat insulation layer (202) and the first inner shell (203) are bonded with the bottom of the shell base assembly (1), the inner side wall of the first outer shell (201) is fixedly connected with the outer side wall of the first heat insulation layer (202), and the inner side wall of the first heat insulation layer (202) is fixedly connected with the inner side wall of the first inner shell (203);
the shell base assembly (1) is composed of a second outer shell (101), a second heat insulation layer (102) and a second inner shell (103), the tops of the first outer shell (201), the first heat insulation layer (202) and the first inner shell (203) are fixedly bonded with the bottoms of the second outer shell (101), the second heat insulation layer (102) and the second inner shell (103) respectively, the inner side wall of the second outer shell (101) is fixedly connected with the outer side wall of the second heat insulation layer (102), the inner side wall of the second heat insulation layer (102) is fixedly connected with the outer side wall of the second inner shell (103), heat dissipation holes (8) are formed in the top ends of the centers of the two sides of the shell top cover assembly (2) respectively, slide rails (6) are installed in the centers of the two sides of the shell top cover assembly (2), a slide block (5) is arranged inside the slide rails (6), and, the center of one side of the mounting groove (16) is welded with one side of the fixing block (14), the center of the other side of the fixing block (14) is rotatably connected with one end of the rotating shaft (3), two sides of one end of the rotating shaft (3) are fixedly connected with one opposite ends of the fixing rods (15), the other end of the fixing rods (15) is fixedly connected with one end of the steel rope (21), one end of the center of the steel rope (21) penetrates through the central hole (24), the central hole (24) is formed in the center of the fixing ring (18), one side of the fixing ring (18) is welded with one end of the spring (17), the other end of the spring (17) is fixedly connected with the periphery of the center of one end of the locking head (7), the outer circumference of the fixing ring (18) is fixedly connected with the inner circumference of one end of the center of the mounting hole (25), the centers of the mounting holes (25) are formed, locking head (7) other end stretches out from jack (26), upper portion in slide rail (6) both sides is seted up respectively in jack (26), the inside bottom surface center of second interior casing (103) is laminated with lithium cell body (11) bottom, fixed plate (10) have been cup jointed respectively with the top periphery in lithium cell body (11) bottom, and fixed plate (10) periphery respectively with second interior casing (103) bottom and top inside wall fixed connection, hot plate (12) have been cup jointed on upper portion in lithium cell body (11), hot plate (12) peripheral fixed mounting has a plurality of copper (13).
2. A manufacturing method of a solid-state lithium battery with a wide-temperature charging and discharging structure comprises the following steps of manufacturing a pole piece; step two, spirally injecting powder; step three, hot-pressing and compounding; step four, packaging the battery; fifthly, formation testing; step six, splicing and assembling; step seven, wide temperature charging and discharging; the method is characterized in that:
in the first step, firstly, mixing an electrode active material, a binder, a solvent and the like together, stirring by a stirrer to respectively form positive slurry and negative slurry, uniformly coating the prepared slurry on a current collector by using a film making machine, then compacting and drying to form a positive plate and a negative plate, and then punching the plates into positive plates and negative plates with uniform sizes;
in the second step, the anode plate and the cathode plate which are cut in the first step are taken, and solid electrolyte powder is uniformly injected between the anode plate and the cathode plate in a spiral powder injection mode;
in the third step, laminating the positive plate and the negative plate which are subjected to powder injection in the second step, and then performing hot-pressing compounding to prepare a battery core for later use;
in the fourth step, the battery core prepared in the third step is placed in a battery shell, then a positive terminal, a negative terminal, a positive lug plate and a negative lug plate of the battery are well installed, then packaging is carried out, and a lithium battery body (11) is prepared for standby after packaging is finished;
in the fifth step, the lithium battery body (11) packaged in the fourth step is charged and activated to generate voltage, and the capacity of the lithium battery body (11) is tested;
wherein in the sixth step, lithium battery body (11) that the formation test in the fifth step is accomplished is taken out, with PCB board (9), hot plate (12), copper (13) and fixed plate (10) install in proper order on lithium battery body (11), later with first shell body (201), first insulating layer (202) and first interior casing (203) bond according to order and become shell top cap subassembly (2), then with shell base subassembly (1) by second shell body (101), second insulating layer (102) and second interior casing (103) bond in proper order and become shell base subassembly (1), louvre (8) are seted up to shell base subassembly (1) both sides, later install slide rail (6) of seting up jack (26) in shell base subassembly (1) both sides, later set up mounting groove (16) and mounting hole (25) on slider (5), later with locking head (7), The spring (17) and the fixing ring (18) are arranged in the mounting hole (25), the steel rope (21) and one end of the locking head (7) are welded, then the fixing shaft (19), the pulley (20), the mounting block (22), the fixing arm (23), the fixing block (14), the fixing rod (15) and the rotating shaft (3) are arranged in the mounting groove (16), the steel rope (21) penetrates through a central hole (24) in the middle of the fixing ring (18), the other end of the steel rope (21) is fixedly connected with one end of the fixing rod (15), then the upper cover of the sliding block (5) is fixed, then the handle (4) is arranged on the rotating shaft (3), the sliding block (5) is arranged on the sliding rail (6) after the mounting is finished, the locking heat dissipation hole head (7) is ensured to be inserted into the jack (26), and the sliding block (5) just covers the heating plate (8), and then the lithium battery body (11), the heating plate (12) and, then connect lithium cell body (11) top and bottom that the completion to cup joint upper fixed plate (10), then pack lithium cell body (11) inside shell base subassembly (1), shell base subassembly (1) and fixed plate (10) interference fit, fixed plate (10) are made for rubber, elasticity has, be favorable to reducing impact and vibration that lithium cell body (11) received, carry out electric connection with positive negative pole on PCB board (9) and the shell top cap subassembly (2) afterwards, carry out fixed connection with shell top cap subassembly (2) and shell base subassembly (1) afterwards, thereby accomplish the concatenation equipment and make solid-state lithium cell;
in the seventh step, when the solid lithium battery spliced and assembled in the sixth step is in use, the temperature acquisition module on the PCB (9) acquires the working temperature on the lithium battery body (11), when the temperature is lower than the normal working temperature, the acquisition module transmits a signal to the main control chip on the PCB (9), then the driving module is used for driving the heating plate (12) to heat the lithium battery body (11), meanwhile, the first heat insulation layer (202) and the second heat insulation layer (102) are respectively arranged in the shell top cover assembly (2) and the shell base assembly (1), so that the loss of heat is reduced, the normal charge and discharge of the lithium battery body (11) at low temperature are ensured, when the temperature is higher than the normal working temperature, the acquisition module transmits the signal to the main control chip on the PCB (9), and then transmits the signal to the buzzer to buzze, so as to remind a worker that the lithium battery body (11) is overheated, at the moment, the handle (4) is rotated, the rotating shaft (3) is driven to rotate, the fixing rod (15) is immediately driven to rotate, the steel rope (21) is pulled, then the locking head (7) is driven to perform centering motion, the spring (17) is immediately compressed, the locking head (7) and the jack (26) are loosened to be clamped, the sliding block (5) slides along the sliding rail (6) at the moment, the heat dissipation holes (8) are opened, ventilation and heat dissipation are facilitated, the effect of a heat dissipation plate is achieved due to the installation of the copper plate (13) on the heating plate (12), the heat dissipation of the lithium battery body (11) is accelerated, the normal charge and discharge of the lithium battery body (11) at high temperature are facilitated, the wide-temperature charge and discharge capacity of the lithium battery body (11) is facilitated to be improved, when the temperature of the lithium battery body (11) is too high, workers do not find in time, stopping charging and discharging is favorable for improving the use safety of the device.
3. A solid state lithium battery of a wide temperature range charge-discharge configuration as claimed in claim 1, wherein: anodal terminal and negative terminal are installed respectively to first shell body (201) top center both sides, and anodal terminal and negative terminal and PCB board (9) electric connection, PCB board (9) and lithium cell body (11) anodal and negative pole electric connection.
4. A solid state lithium battery of a wide temperature range charge-discharge configuration as claimed in claim 1, wherein: steel cable (21) center top and bottom are located pulley (20) center in one side in opposite directions respectively, pulley (20) cup joint at fixed axle (19) center, and fixed axle (19) rotate with pulley (20) and be connected, fixed axle (19) both ends respectively with installation piece (22) one side center top and bottom fixed connection in opposite directions, installation piece (22) top and bottom respectively with fixed arm (23) one side center both ends fixed connection in opposite directions, fixed arm (23) other end respectively with mounting groove (16) inside wall both ends top and bottom fixed connection.
5. A solid state lithium battery of a wide temperature range charge-discharge configuration as claimed in claim 1, wherein: the other end of the rotating shaft (3) penetrates through the center of one side of the sliding block (5), and the other end of the rotating shaft (3) is fixedly connected with the center of one side of the handle (4).
6. A solid state lithium battery of a wide temperature range charge-discharge configuration as claimed in claim 1, wherein: the lithium battery pack is characterized in that a PCB (9) is installed at the bottom of the center of one side of the lithium battery body (11), and a main control chip, a temperature acquisition module, a driving module, a circuit protection module and a buzzer are installed on the PCB (9).
7. The method of claim 2, wherein the method further comprises: in the first step, the stirrer is a magnetic stirrer, the rotating speed is 500-.
8. The method of claim 2, wherein the method further comprises: in the fifth step, the charging mode adopts constant current charging, the charging current is 130-.
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