CN116487130A - Insulating sheet and application method thereof in lithium battery - Google Patents
Insulating sheet and application method thereof in lithium battery Download PDFInfo
- Publication number
- CN116487130A CN116487130A CN202310543702.3A CN202310543702A CN116487130A CN 116487130 A CN116487130 A CN 116487130A CN 202310543702 A CN202310543702 A CN 202310543702A CN 116487130 A CN116487130 A CN 116487130A
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- Prior art keywords
- butt joint
- sheet
- battery
- box
- insulating sheet
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- 238000000034 method Methods 0.000 title claims abstract description 21
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 14
- 210000001503 joint Anatomy 0.000 claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 229910052751 metal Inorganic materials 0.000 claims description 32
- 239000002184 metal Substances 0.000 claims description 32
- 239000000110 cooling liquid Substances 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 6
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 6
- 239000012780 transparent material Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000007772 electrode material Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 13
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000011344 liquid material Substances 0.000 abstract description 2
- 238000003032 molecular docking Methods 0.000 description 16
- 230000006870 function Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000003872 anastomosis Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
-
- 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
-
- 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
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses an insulating sheet and a use method thereof in a lithium battery, wherein the insulating sheet comprises a sheet, the sheet is arranged above a battery shell and is used for separating the inside and the outside of the battery, the upper end surface of the sheet is also provided with two positive electrode blocks and one negative electrode block which are connected with the inside of the battery, the insulating sheet also comprises a butt joint mechanism, the butt joint mechanism is arranged on the sheet, the butt joint mechanism is used for positioning and splicing the shell, and simultaneously, the positive electrodes and the negative electrodes of two adjacent batteries are also adjacently distributed after the butt joint mechanism is in butt joint. The insulating sheet and the use method thereof in the lithium battery are redesigned, the butt joint of the battery can be assisted by the magnetic device, meanwhile, the liquid material in the magnetic device can be utilized to perform good auxiliary cooling effect, the functionality of the sheet is improved, and meanwhile, the magnetic device is matched with the cooling device to realize rapid positioning of the position of the battery damaged at high temperature.
Description
Technical Field
The invention relates to the technical field of insulating sheets, in particular to an insulating sheet and a use method thereof in a lithium battery.
Background
In the structure of the lithium battery panel, the insulating sheet is a sheet structure arranged at the top end of the battery shell, and the insulating sheet has the main function of separating the content inside the battery from the external function, and the lithium battery is generally used as power supply equipment of a vehicle or other equipment with higher power when being used in a row, so that the physical structural performance and other performance effects of the insulating sheet are particularly important, but the following problems exist in the prior similar insulating sheet in actual use:
in the process of installing, butting and using the lithium battery, batteries are required to be close to each other, so that space is saved, a whole battery pack is formed for supplying power to equipment, and as positive and negative electrode areas of an electrode block on an insulating sheet are difficult to separate, the insulating sheet cannot have good distinguishing and reminding effects, workers can easily distribute the same poles of two adjacent batteries close to each other, the follow-up wiring operation is very troublesome, and the batteries are required to be detached and adjusted independently.
Disclosure of Invention
The invention aims to provide an insulating sheet and a use method thereof in a lithium battery, so as to solve the problems that in the background art, the batteries are required to be close to each other in the process of installation and butt joint use, so that space is saved, an entire battery pack is formed for supplying power to equipment, and the insulating sheet cannot achieve good distinguishing and reminding effects because positive and negative electrode areas of an electrode block on the insulating sheet are difficult to separate, and therefore, workers can easily distribute the same poles of two adjacent batteries close to each other, so that the subsequent wiring operation is very troublesome, and the batteries are required to be detached and adjusted independently.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an insulating piece, includes the sheet, the sheet is installed in the top of battery case for separate the battery inside and outside, and the up end of sheet still installs two positive and a negative electrode piece that link to each other with the battery inside, still includes docking mechanism, docking mechanism installs on the sheet, and docking mechanism is used for carrying out the location concatenation to the shell, and the positive and negative pole of two adjacent batteries is adjacent distribution after docking mechanism docks simultaneously.
Further, the butt joint device comprises a butt joint plate and a positioning mechanism, the side section of the butt joint plate is of a hook-shaped structure, the bottom end of the butt joint plate is fixed on the upper end face of the sheet, the top end of the butt joint plate is bent and extends to the upper portion of the shell, the positioning mechanism is fixed on the top side surface of the butt joint plate, the two butt joint plates in the front-back direction are in a group, and the two butt joint plates are symmetrically arranged on the left side and the right side of the sheet.
Further, the positioning mechanism is composed of identical protruding blocks and grooves, wherein the protruding blocks are arranged on the outer surfaces of the left and right butt joint plates at the front end of the sheet, and the grooves are formed on the outer surfaces of the left and right butt joint plates at the rear end of the sheet.
Further, the positioning mechanism comprises first magnetic blocks, wherein the exposed surfaces of the first magnetic blocks arranged on the left and right groups of corresponding butt joint plates of the sheet are arranged in a repulsive manner, and the exposed surfaces of the first magnetic blocks on the front and rear corresponding butt joint plates are arranged in an attractive manner.
Further, the docking mechanism comprises two indication boxes made of transparent materials, the inside of each indication box is provided with a cavity, two second magnetic blocks are movably arranged in one cavity, the second magnetic blocks in the same cavity are oppositely arranged in a repulsive mode, and the outer surfaces of the two adjacent magnetic blocks in front and back in different cavities are arranged in a suction mode.
Further, the cavity is filled with cooling liquid, and the cooling liquid completely wraps the magnetic block.
Further, the side of the indication box is also communicated with a shunt tube, the shunt tube is fixedly arranged in the sheet, the section of the shunt tube is of a polygonal or circular structure, meanwhile, a first metal wire is arranged in the shunt tube and is made of a double-pass memory alloy material, the left end and the right end of the first metal wire are fixed in the valve plate and the shunt tube, the valve plate is movably arranged in the shunt tube, and after the valve plate moves to the maximum distance in the shunt tube, the inner diameter of the shunt tube at the position is larger than the outer diameter of the valve plate.
Further, the right end of the shunt tube is also communicated with the inner space of the positioning box made of transparent materials at the top end, two positioning boxes are arranged in the sheet material front and back in the same way, absorbent cotton is arranged in the positioning boxes, a baffle plate is further arranged at the communication point of the shunt tube and the positioning boxes, the inner wall of the baffle plate is fixedly connected with the right end of the second metal wire, the left end of the second metal wire is also fixed in the shunt tube, the second metal wire is also made of memory alloy materials, and the deformation temperature of the second metal wire is higher than that of the first metal wire.
A method of using an insulating sheet in a lithium battery, the method comprising the steps of:
step one: pressing and fixing the sheet material in a battery shell filled with electrode materials, and exposing a wiring area of the electrode block above the sheet material;
step two: and (3) carrying out row stacking on the batteries per se: in the butt joint process of the shell, if the positions of the anode and the cathode are incorrect, the repulsive force between the magnetic blocks can cause the second magnetic block to slide in the indicating box towards the center of the indicating box, and if the positions of the anode and the cathode are incorrect, the attractive force between the magnetic blocks can also cause the magnetic blocks to slide towards the end of the indicating box;
step three: after the butt joint is completed, the wiring operation between the electrodes can be performed;
step four: in the case of a battery of high Wen Sunhui: in the temperature rising process of the battery, the second metal wire normally cannot deform until the temperature threshold reaches a high temperature range generated by damage, the first metal wire is deformed in a limit mode and drives the valve plate to move to a maximum distance, the second metal wire also deforms and pulls the baffle plate, the baffle plate can ensure left and right communication of the shunt tube in a pulled mode, at the moment, cooling liquid in the indicating box can enter the positioning box through the shunt tube, absorbent cotton in the positioning box can deform, other materials capable of changing color when meeting water/oil can be applied to the positioning box, and the damaged battery position and the left side or right side position of the battery are judged.
Compared with the prior art, the invention has the beneficial effects that: according to the insulating sheet and the use method thereof in the lithium battery, the insulating sheet is redesigned, the butt joint of the battery can be assisted by the magnetic device, meanwhile, the liquid material in the magnetic device can be utilized to perform good auxiliary cooling effect, the functionality of the sheet is improved, and meanwhile, the magnetic device is matched with the cooling device to realize the rapid positioning of the position of the damaged battery at high temperature;
1. the structural design of the lug grooves can utilize the anastomosis of the lug grooves, so that the sheet material has the function of facilitating the staggered butt joint and stacking of the positive and negative electrodes of the batteries, meanwhile, the stable anastomosis between the lug grooves and the sheet material can ensure that the splicing between the batteries is more stable, and the dislocation phenomenon before the batteries are arranged in the battery pack is reduced;
2. as a replacement structure of the lug grooves, the first magnet can assist in the normal butt joint placement between the batteries in a magnetic attraction mode, and the attraction effect between the magnets helps the stable connection between the batteries, and the stability can be further improved by using the magnetic attraction effect to enable the batteries to be stable in the battery pack;
3. the arrangement of the cooling liquid structure in the second magnetic block and the indication box saves the whole space occupation of the battery by integrating the magnetic block in the sheet, not only has all functions of the first magnet, but also can utilize the cooling liquid to lubricate the sliding of the second magnetic block and simultaneously has the effect of radiating the inside of the battery;
furthermore, due to the structural design of the shunt tube, the cooling liquid can flow into the shunt tube by utilizing the deformation of the first metal wire in a high-temperature state, and the heat dissipation effect is further improved by a mode that the upper layer cooling liquid in the indication box flows into the shunt tube to increase the contact area between the cooling liquid and the battery;
furthermore, the second metal wire and the positioning box are used, so that the cooling liquid can enter the positioning box through deformation of the second metal wire and can be conveniently and rapidly positioned by workers under the condition that a single battery is damaged by the cooling liquid and water-absorbing cotton or other materials which react with water/oil in the positioning box.
Drawings
FIG. 1 is a schematic view of the structure of the sheet of the present invention after installation;
FIG. 2 is a schematic view of a sheet structure according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a spliced structure of the butt-joint plates according to the first embodiment of the present invention;
FIG. 4 is a schematic view of a sheet structure according to a second embodiment of the present invention;
FIG. 5 is a schematic view of a sheet structure according to a third embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of the indicator box of FIG. 5 according to the present invention;
fig. 7 is a schematic view of a third embodiment of an indicator block and shunt and spacer of the present invention;
FIG. 8 is a schematic diagram of a distribution structure of a second magnetic block adjacent to a positive electrode after the battery is docked;
fig. 9 is a schematic diagram of a distribution structure of a second magnetic block with adjacent positive and negative poles after the battery is docked.
In the figure: 1. a sheet; 2. a housing; 3. an electrode block; 4. an abutting plate; 5. a bump; 6. a groove; 7. a first magnetic block; 8. an indication box; 9. a cavity; 10. a second magnetic block; 11. a shunt; 12. a first wire; 13. a valve plate; 14. a second wire; 15. a baffle; 16. a positioning box; 17. absorbing cotton.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides the following technical solutions:
embodiment one:
in this embodiment, in order to solve the corresponding technical problem that exists among the prior art, the scheme is disclosed, specifically as shown in fig. 1-3, including sheet 1, sheet 1 installs in the top of battery case 2, be used for separating the inside and outside of battery, and a positive negative electrode piece 3 that links to each other with the battery inside is still installed to sheet 1's up end, still include docking mechanism, docking mechanism installs on sheet 1, and docking mechanism is used for carrying out the location concatenation to shell 2, docking mechanism docks the back simultaneously, the positive negative pole of two adjacent batteries is adjacent distribution, docking device includes docking plate 4 and positioning mechanism, docking plate 4's side cross-section is hook-type structure and bottom fixing at sheet 1's up end, the top then buckles and extends to the top of shell 2, positioning mechanism fixes at docking plate 4's top side surface, and two docking plate 4 of front and back direction are a set of, docking plate 4 is provided with two sets of at sheet 1's left and right sides symmetry, positioning mechanism comprises lug 5 and recess 6, wherein lug 5 sets up at sheet 1's left and right surface two on the front end respectively, the surface of docking plate 6 then can be in the positive electrode 4, the positive electrode can not be well pressed between two adjacent lugs 5 when the shell 2 is located in the following position, can be in the proper condition, the mutual connection between the two adjacent lugs 2, then can be adjusted in the positive electrode case, the positive electrode is well-fit between the two adjacent lugs 2, if can be well pressed.
Embodiment two:
different from the above embodiment, this embodiment also discloses following scheme, the magnetic path has been used as positioning mechanism, positioning mechanism includes first magnetic path 7, the first magnetic path 7 that sets up on the butt joint board 4 that two sets of corresponds about sheet 1 exposes the face and is the repulse setting, the first magnetic path 7 that corresponds on the butt joint board 4 around is for inhaling the setting, like this when the anodal of two batteries is in adjacent position, the same polarity face of first magnetic path 7 also can be in the state of relative distribution, therefore unable corresponding laminating between two batteries, can play fine physical layer's warning effect, and when anodal and negative pole of two batteries are in adjacent position, the adjacent magnetic path of first magnetic path 7 then is the nature of inhaling mutually, consequently, can not only play the warning effect, can also make the concatenation between two adjacent batteries more stable, the use of magnetic path can play the auxiliary role for the butt joint simultaneously, can also guarantee the steady distribution in battery package itself in battery package through the absorption between magnetism and the battery package outside package structure, convenient to use.
Third embodiment:
in this embodiment, another positioning mechanism for butting battery case 2 is disclosed, which is the same as the embodiment in that the two positioning mechanisms are realized by utilizing the principle that magnetism is attracted to each other, the difference is that, as shown in fig. 5-6, the butting mechanism comprises two indication boxes 8 made of transparent materials, the inside of each indication box 8 is provided with a cavity 9, two second magnetic blocks 10 are movably arranged in one cavity 9, the second magnetic blocks 10 in the same cavity 9 are oppositely arranged, the outer surfaces of two adjacent magnetic blocks in different cavities 9 are attracted to each other, the cavities 9 are filled with cooling liquid, the cooling liquid completely wraps the magnetic blocks, the indication boxes 8 are integrally arranged in sheet 1, so that after the cooling liquid is filled, the indication boxes 8 can also play a role of radiating the battery, on the other hand, the second magnetic blocks 10 need to slide in the indication boxes 8, and can also play a role of reducing the moving resistance of the magnetic blocks, and if the second magnetic blocks 10 are additionally arranged in the opposite direction to each other, the two magnetic blocks can also play a role of conducting the magnetic blocks, and if the two magnetic blocks are not directly opposite to each other, the two magnetic blocks can also face to each other, and the opposite magnetic blocks can not slide in the indication boxes 8, and the opposite direction can also play a role of correctly when the magnetic blocks are placed in the butting device, and the opposite direction is opposite to the magnetic blocks 8, and the position can not reach the position of the indication boxes.
In this embodiment, in order to further utilize the cooling liquid in the indication box 8, the heat dissipation effect of the sheet 1 on the battery is improved, and as shown in fig. 7, the side of the indication box 8 is also communicated with the shunt tube 11, the shunt tube 11 is fixedly arranged in the sheet 1 as well, the cross section of the shunt tube 11 is of a polygonal or circular structure, meanwhile, the shunt tube 11 is provided with the first metal wire 12, the first metal wire 12 is made of a two-way memory alloy material, the left end and the right end of the first metal wire 12 are fixed in the valve plate 13 and the inside of the shunt tube 11, the valve plate 13 is movably arranged in the shunt tube 11, after the valve plate 13 moves to the maximum distance inside the shunt tube 11, the inner diameter of the shunt tube 11 in the position is larger than the outer diameter of the valve plate 13, when the battery is in a high-temperature state, the first metal wire 12 is correspondingly shortened and deformed, and therefore the valve plate 13 is pulled and displaced by the first metal wire 12, at this moment, the cooling liquid in the indication box 8 enters into the shunt tube 11, and the shunt tube 11 is of a cylindrical or columnar structure, so that the cooling liquid enters the shunt tube 11, and the cooling liquid is contacted with the cooling liquid in the battery, and the heat dissipation effect is improved.
Since the lithium battery is very easy to damage due to heat after being applied to a vehicle or other high-load working environments during the development of the current battery technology, and the battery is in tandem use, under the condition that the external structure is inconvenient to observe, workers can hardly determine the damage position without disassembling the battery pack, so in order to solve the problem, the embodiment also discloses a scheme that the right end of the shunt tube 11 is communicated with the inner space of the positioning box 16 made of a top transparent material, as shown in fig. 7, simultaneously the positioning box 16 is also provided with two front and rear parts in the sheet material 1, the inside of the positioning box 16 is provided with absorbent cotton 17, the communication point of the shunt tube 11 and the positioning box 16 is also provided with a baffle 15, the inner wall of the baffle 15 is fixedly connected with the right end of the second metal wire 14, the left end of the second metal wire 14 is also fixed in the shunt tube 11, the second metal wire 14 is also made of a memory alloy material, the deformation temperature of the second metal wire is higher than that of the first metal wire 12, the second metal wire 14 is not deformed normally in the process of increasing the temperature of the battery itself until the temperature threshold reaches a high temperature range generated by damage, the first metal wire 12 deforms to the limit and drives the valve plate 13 to move to the maximum distance, the second metal wire 14 also deforms and pulls the baffle plate 15, at the moment, the cooling liquid in the indication box 8 enters the positioning box 16 through the shunt tube 11, the absorbent cotton 17 in the positioning box 16 deforms, and other materials capable of changing color when meeting water/oil can be applied to the positioning box 16, so that a worker can conveniently and rapidly judge the damaged battery position and the left or right side position of the battery itself.
The use method of the insulating sheet in the lithium battery according to the embodiment comprises the following steps:
step one: pressing and fixing the sheet 1 in a battery case 2 filled with electrode materials, and exposing a wiring area of the electrode block 3 above the sheet 1;
step two: and (3) carrying out row stacking on the batteries per se: in the process of butting the shell 2, if the positions of the anode and the cathode are incorrect, the repulsive force between the magnetic blocks can cause the second magnetic block 10 to slide in the indication box 8 towards the center of the indication box 8, and if the positions of the anode and the cathode are incorrect, the attractive force between the magnetic blocks can also cause the magnetic blocks to slide towards the end of the indication box 8;
step three: after the butt joint is completed, the wiring operation between the electrodes can be performed;
step four: in the case of a battery of high Wen Sunhui: in the process of raising the temperature of the battery, the second metal wire 14 will not deform normally until the temperature threshold reaches the high temperature range generated by damage, the first metal wire 12 deforms to the limit and drives the valve plate 13 to move to the maximum distance, the second metal wire 14 also deforms and pulls the baffle 15, the baffle 15 itself can ensure the left and right communication of the shunt tube 11 in a pull-broken manner, at this time, the cooling liquid in the indication box 8 will enter the positioning box 16 through the shunt tube 11, the absorbent cotton 17 in the positioning box 16 deforms, and other materials which change color when meeting water/oil can be applied in the positioning box 16, so as to judge the damaged battery position and the left or right position of the battery itself.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. An insulating sheet, includes sheet (1), sheet (1) installs in the top of battery case (2) for separate the battery inside and outside, and the up end of sheet (1) still installs a positive negative electrode piece (3) that two and battery inside link to each other, its characterized in that: the solar cell module comprises a shell (2), and is characterized by further comprising a butt joint mechanism, wherein the butt joint mechanism is arranged on the sheet (1) and is used for positioning and splicing the shell (2), and positive and negative poles of two adjacent cells are also distributed adjacently after the butt joint of the butt joint mechanism.
2. An insulating sheet according to claim 1, wherein: the butt joint device comprises a butt joint plate (4) and a positioning mechanism, wherein the side section of the butt joint plate (4) is of a hook-shaped structure, the bottom end of the butt joint plate is fixed on the upper end face of the sheet (1), the top end of the butt joint plate is bent and extends to the upper side of the shell (2), the positioning mechanism is fixed on the top side surface of the butt joint plate (4), the two butt joint plates (4) in the front-back direction are in a group, and the two groups of butt joint plates (4) are symmetrically arranged on the left side and the right side of the sheet (1).
3. An insulating sheet according to claim 2, wherein: the positioning mechanism consists of a lug (5) and a groove (6) which are matched, wherein the lug (5) is arranged on the outer surfaces of the left butt joint plate (4) and the right butt joint plate (4) at the front end of the sheet (1), and the groove (6) is arranged on the outer surfaces of the left butt joint plate (4) and the right butt joint plate (4) at the rear end of the sheet (1).
4. An insulating sheet according to claim 2, wherein: the positioning mechanism comprises first magnetic blocks (7), wherein the exposed surfaces of the first magnetic blocks (7) arranged on the left and right groups of corresponding butt joint plates (4) of the sheet (1) are arranged in a repulsive mode, and the exposed surfaces of the first magnetic blocks (7) on the front and rear corresponding butt joint plates (4) are arranged in a sucking mode.
5. An insulating sheet according to claim 1, wherein: the butt joint mechanism comprises two indication boxes (8) made of transparent materials, a cavity (9) is formed in the indication boxes (8), two second magnetic blocks (10) are movably arranged in one cavity (9), the second magnetic blocks (10) in the same cavity (9) are oppositely arranged in a repulsive mode, and the outer surfaces of the two adjacent magnetic blocks in front of and behind different cavities (9) are arranged in a attractive mode.
6. An insulating sheet as defined in claim 5, wherein: the cavity (9) is also filled with cooling liquid, and the cooling liquid completely wraps the magnetic blocks.
7. An insulating sheet as defined in claim 6, wherein: the side of instruction box (8) still communicates has shunt tubes (11), the same fixed setting of shunt tubes (11) is in sheet (1), and the cross-section of shunt tubes (11) is polygon or circular structure, simultaneously be provided with first wire (12) in shunt tubes (11), first wire (12) are the double-pass memory alloy material, and both ends are fixed in the inside of valve plate (13) and shunt tubes (11) about first wire (12), and valve plate (13) movable mounting is in shunt tubes (11), and valve plate (13) are after removing the inside max distance of shunt tubes (11), and shunt tubes (11) internal diameter in this position is greater than the external diameter of valve plate (13).
8. An insulating sheet as defined in claim 7, wherein: the right-hand member of shunt tubes (11) still communicates with the inner space of the locating box (16) of top transparent material, is provided with two in sheet (1) front and back simultaneously with locating box (16) the same, and the inside of locating box (16) is provided with absorbs cotton (17), and the intercommunication point of shunt tubes (11) and locating box (16) still is provided with separation blade (15), the inner wall of separation blade (15) and the right-hand member fixed connection of second wire (14), and the inside at shunt tubes (11) is likewise fixed to the left end of second wire (14), and second wire (14) are memory alloy material equally, and its deformation temperature is higher than the deformation temperature of first wire (12).
9. The method of claim 8, wherein the step of using the insulating sheet in a lithium battery comprises: the using method comprises the following steps:
step one: pressing and fixing the sheet (1) in a battery shell (2) filled with electrode materials, and exposing a wiring area of the electrode block (3) above the sheet (1);
step two: and (3) carrying out row stacking on the batteries per se: in the butt joint process of the shell (2), if the positions of the positive electrode and the negative electrode are incorrect, the repulsive force between the magnetic blocks can cause the second magnetic block (10) to slide in the indication box (8) towards the center of the indication box (8), and if the positions of the positive electrode and the negative electrode are correct, the attractive force between the magnetic blocks can also cause the magnetic blocks to slide towards the end of the indication box (8);
step three: after the butt joint is completed, the wiring operation between the electrodes can be performed;
step four: in the case of a battery of high Wen Sunhui: in the temperature rising process of the battery, the second metal wire (14) is not deformed normally until the temperature threshold reaches the high temperature range generated by damage, the first metal wire (12) is deformed to limit and drive the valve plate (13) to move to the maximum distance, the second metal wire (14) is deformed and pulls the baffle plate (15), the baffle plate (15) can ensure left and right communication of the shunt tube (11) in a pull-broken mode, at the moment, cooling liquid in the indicating box (8) can enter the positioning box (16) through the shunt tube (11), absorbent cotton (17) in the positioning box (16) can deform, and meanwhile, other materials capable of changing color when meeting water/oil can be applied to the positioning box (16) to judge the damaged battery position and the left side or right side position of the battery.
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| CN116487130B (en) | 2024-05-10 |
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