CN211700346U - Battery cover plate and aluminum-shell battery using same - Google Patents
Battery cover plate and aluminum-shell battery using same Download PDFInfo
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- CN211700346U CN211700346U CN202020826375.4U CN202020826375U CN211700346U CN 211700346 U CN211700346 U CN 211700346U CN 202020826375 U CN202020826375 U CN 202020826375U CN 211700346 U CN211700346 U CN 211700346U
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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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a battery cover plate and an aluminum shell battery using the cover plate, the battery cover plate comprises a light cover plate, a groove for welding an explosion-proof sheet is arranged in the middle of the light cover plate, and a liquid injection hole for injecting liquid is arranged in the center of the groove; the aluminum shell battery using the cover plate adopts a transverse large roll core structure design, reduces the production cost, improves the processing efficiency of the battery core, and compared with the traditional aluminum shell battery with a tab at one side, the utility model discloses an aluminum shell battery arranges the positive and negative poles at two sides of the roll core, improves the soaking effect of the battery core, and compared with the traditional two-side tab battery, electrolyte is injected from the top of the roll core through the electrolyte injection hole, so that two ends of the roll core can be soaked simultaneously, and the soaking speed is faster; the utility model has the advantages of low cost, high production efficiency, even internal temperature distribution, fast infiltration speed of electrolyte and simple and efficient assembly structure.
Description
Technical Field
The utility model relates to an aluminum hull lithium cell technical field, concretely relates to battery cover plate and use aluminum hull battery of this apron.
Background
The lithium ion battery has the advantages of light weight, large energy storage, large power, no pollution, long service life, small self-discharge coefficient, wide temperature application range and the like, is gradually favored by people, and gradually replaces other traditional batteries in the field of energy storage and power batteries.
With the rapid development of the lithium battery industry, the cost of the battery becomes more and more a key factor for the development of the battery industry, the cover plate sealing of the traditional structure is generally realized by a sealing ring and a riveting process or a sealing ring and an injection molding process, and the structure is complex and the cost is high; the conventional 26148/52148/79148 aluminum-shell battery has the defects that the pole piece is very narrow and the coating efficiency is low because the pole lug is led out from the upper part of the battery and the battery is short, so that the production efficiency is low and the cost control is not facilitated; in addition, because the positive and negative electrodes of the traditional aluminum-shell battery are led out at one end, the heat generation at the leading-out ends of the positive and negative electrodes is serious, the temperature of the battery is uneven, and the safety and the service life of the battery are seriously influenced; the problem of uneven battery temperature can be well solved by the battery with the lugs at two ends, but the traditional aluminum-shell battery with the lugs at two ends has the problem of slow infiltration speed after liquid injection, so that the production efficiency of the battery is greatly influenced; in addition, the aluminum shell battery cell with the lugs at the two ends has 2 end covers, so that the welding efficiency and the welding yield are relatively low, and the structure is relatively complex.
Disclosure of Invention
The utility model aims to provide a battery cover plate with simple structure and processing technology, high efficiency, low cost and high production efficiency, so that the cover plate can be used for an aluminum shell battery to solve the problems; an object of the utility model is to provide an inside temperature distribution is even, electrolyte soaks fast, the simple efficient aluminum hull battery of assembly process.
The purpose of the utility model is realized like this: the utility model provides a battery cover plate, it includes the light apron, the centre of light apron is provided with the recess that is used for welding explosion-proof piece, the center of recess is provided with the notes liquid hole that is used for annotating the liquid, and explosion-proof piece edge is through laser welding to in the recess, just be in one deck explosion-proof piece pad pasting has been pasted on the light apron of recess top, protects explosion-proof piece.
The battery cover plate further comprises anode sealing plastic, an anode conductive handle, cathode sealing plastic and a cathode conductive handle, wherein the anode conductive handle is fixed on the upper side of the light cover plate through the anode sealing plastic, the anode conductive handle is sealed and insulated through the anode sealing plastic, and the cathode conductive handle is fixed on the upper side of the light cover plate through the cathode sealing plastic, and the cathode sealing plastic is sealed and insulated.
The battery cover plate further comprises a positive pole, a negative pole, a sealing ring, an upper insulating part, a lower insulating part and a first buckle, the positive pole and a positive pole conductive handle are riveted or laser welded together, the positive pole conductive handle sequentially penetrates through the sealing ring and the upper insulating part to be pressed on the upper side of the light cover plate, the positive pole is fixed by positive pole sealing plastic through an injection molding process on the upper side of the light cover plate, the negative pole and the negative pole conductive handle are riveted or laser welded together, the negative pole conductive handle sequentially penetrates through the sealing ring and the upper insulating part to be pressed on the upper side of the light cover plate, and the negative pole sealing plastic fixes the negative pole through the injection molding process on the upper side of the light cover plate, and then the lower insulating part is fixed with the upper insulating part through.
The utility model provides an aluminum-shell battery, it includes battery apron, rolls up core, insulating side cap, insulating sticker, aluminum hull, battery apron include the light apron, the centre of light apron is provided with the recess that is used for welding explosion-proof piece, the center of recess is provided with the notes liquid hole that is used for annotating the liquid, and explosion-proof piece edge is received through laser welding in the recess, and is in one deck explosion-proof piece pad pasting has been pasted on the light apron of recess top, protects explosion-proof piece.
The roll core by the coating district with leave white district and constitute, leave white district including leaving white copper foil and leaving white aluminium foil, leave white copper foil and leave white aluminium foil and be located the both ends of roll core, one side of leaving white copper foil has been pre-welded through ultrasonic bonding to the copper screening glass, and one side of leaving white aluminium foil has been pre-welded through ultrasonic bonding to the aluminium screening glass, and copper screening glass and aluminium screening glass are in same one side, the structure of roll core is winding structure or lamination, two the roll core set up relatively and fix together through the sticky tape, form a roll core group, and copper screening glass and aluminium screening glass set up the outside at roll core group.
The white aluminum foil is welded on the positive conductive handle through laser or ultrasonic, and the white copper foil is welded on the negative conductive handle through laser or ultrasonic.
The insulating side cover is fixed on an upper insulating part of the battery cover plate through a second buckle, and external insulation of the positive end and the negative end is achieved.
The insulating paster is pasted on the front, the bottom and the back of the winding core group and the insulating side cover, so that the winding core group is insulated from the outside.
The coil core group for realizing external insulation is arranged in the aluminum shell, and the battery cover plate and the aluminum shell are welded together along the contact surface of the battery cover plate and the aluminum shell through laser welding to realize sealing connection.
The utility model has the advantages that: the battery cover plate of the utility model has the advantages of simpler structure and processing technique and low cost; the utility model discloses an aluminum-shell battery adopts the core of rolling up, selects the structural design of horizontal big core of rolling up, has avoided cutting many times of coating pole piece, has reduced manufacturing cost, has promoted the machining efficiency of electric core; compared with the aluminum-shell battery with the unified side-out electrode lug, the aluminum-shell battery of the utility model arranges the positive electrode and the negative electrode on the two sides of the winding core, thereby improving the soaking effect of the battery core; compared with the traditional battery cell with lugs at two sides, the battery cover plate of the utility model is provided with the electrolyte injection hole, electrolyte is injected from the top of the winding core, so that two ends of the winding core can be simultaneously infiltrated, and the infiltration speed is higher; the structure and the assembly process of the aluminum-shell battery using the cover plate are simple and efficient; the utility model has the advantages of low cost, high production efficiency, even internal temperature distribution, fast infiltration speed of electrolyte and simple and efficient assembly structure.
Drawings
Fig. 1 is a schematic view of a battery cover plate of embodiment 1.
Fig. 2 is a schematic sectional view of a region a of a battery cover plate of example 1.
Fig. 3 is a schematic sectional view of a region B of a battery cover plate according to the present invention.
Fig. 4 is a schematic sectional view of a region a of a battery cover plate of example 2.
Fig. 5 is a schematic view of a battery cover plate of embodiment 2.
Fig. 6 is a schematic structural diagram of a winding core of an aluminum-case battery of the present invention.
Fig. 7 is a schematic structural diagram of the winding core set of the aluminum-case battery of the present invention.
Fig. 8 is a schematic structural view of the battery cover plate connecting winding core set of the aluminum-casing battery of embodiment 1.
Fig. 9 is an assembly view of an insulating side cover of an aluminum-casing battery of example 1.
Fig. 10 is an assembly view of the insulating sticker for an aluminum-can battery of example 1.
Fig. 11 is an assembly view of an aluminum can of an aluminum-can battery of example 1.
Fig. 12 is a schematic view of the welding of the battery cover plate and the aluminum can of an aluminum can battery of embodiment 1.
Fig. 13 is a schematic structural view of the battery cover plate connecting winding core set of the aluminum-casing battery of embodiment 2.
Fig. 14 is an assembly view of an insulating side cover of an aluminum-casing battery of example 2.
Fig. 15 is an assembly view of the insulating sticker for an aluminum-can battery of embodiment 2.
Fig. 16 is an assembly view of the aluminum can of an aluminum-can battery of embodiment 2.
Fig. 17 is a schematic view of the welding of the battery cover plate and the aluminum can of an aluminum can battery of embodiment 2.
In the figure: 1. 1-1 part of winding core, 1-2 parts of coating area, 1-3 parts of white aluminum foil, 1-4 parts of aluminum protection sheet, 1-5 parts of white copper foil, 1-6 parts of copper protection sheet, 2 parts of prewelding, 2-1 parts of winding core group, 3 parts of adhesive tape, 3-1 parts of battery cover plate, 3-2 parts of optical cover plate, 3-3 parts of positive electrode sealing plastic, 3-4 parts of positive electrode conductive handle, 3-5 parts of negative electrode sealing plastic, 3-6 parts of negative electrode conductive handle, 3-7 parts of positive electrode column, 3-8 parts of negative electrode column, 4-1 parts of first buckle, 4-2 parts of upper insulating part, 4-3 parts of sealing ring, 5-1 part of lower insulating part, 5-2 parts of groove, 5-3 parts of liquid injection hole, 5-4 parts of explosion-proof, The anti-explosion piece comprises an anti-explosion piece film 6-1, an insulating side cover 6-2, a second buckle 7-1, an insulating sticker 7-2, a front face 7-3, a bottom face 7-4, a back face 8, an aluminum shell 9 and a contact face.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
The battery cover plate 3 shown in the figure 1-3 comprises a light cover plate 3-1, wherein a groove 5-1 used for welding an explosion-proof sheet 5-3 is arranged in the middle of the light cover plate 3-1, a liquid injection hole 5-2 used for injecting liquid is arranged in the center of the groove 5-1, the edge 5-4 of the explosion-proof sheet is welded into the groove 5-1 through laser, and a layer of explosion-proof sheet sticking film 5-5 is stuck on the light cover plate 3-1 above the groove 5-1 to protect the explosion-proof sheet 5-3.
The battery cover plate 3 further comprises an anode sealing plastic 3-2, an anode conductive handle 3-3, a cathode sealing plastic 3-4 and a cathode conductive handle 3-5, the anode conductive handle 3-3 is fixed on the upper side of the light cover plate 3-1 through the anode sealing plastic 3-2, sealing insulation is achieved through the anode sealing plastic 3-2, the cathode conductive handle 3-5 is fixed on the upper side of the light cover plate 3-1 through the cathode sealing plastic 3-4, and sealing insulation is achieved through the cathode sealing plastic 3-4.
As shown in fig. 1-3 and 6-12, the aluminum-casing battery comprises a battery cover plate 3, a winding core 1, an insulating side cover 6-1, an insulating sticker 7-1 and an aluminum casing 8, wherein the battery cover plate 3 comprises a light cover plate 3-1, a groove 5-1 for welding an explosion-proof sheet 5-3 is arranged in the middle of the light cover plate 3-1, a liquid injection hole 5-2 for injecting liquid is arranged in the center of the groove 5-1, and compared with a traditional tab battery cell with two sides, electrolyte is injected from the top of the winding core 1 through the liquid injection hole 5-2, so that two ends of the winding core 1 can be simultaneously infiltrated, the infiltration speed is higher, an edge 5-4 of the explosion-proof sheet is welded into the groove 5-1 through laser, and a layer of explosion-proof sheet adhesive film 5-5 is adhered on the light cover plate 3-1 above the groove 5-1, and protecting the explosion-proof sheet 5-3.
The winding core 1 consists of a coating area 1-1 and a blank area, the blank area comprises a blank copper foil 1-4 and a blank aluminum foil 1-2, the blank copper foil 1-4 and the blank aluminum foil 1-2 are positioned at two ends of the winding core 1, one side of the blank copper foil 1-4 is pre-welded with a copper protection plate 1-6 through ultrasonic welding, one side of the blank aluminum foil 1-2 is pre-welded with an aluminum protection plate 1-3 through ultrasonic welding, the copper protection plate 1-5 and the aluminum protection plate 1-3 are positioned at the same side, compared with an aluminum shell battery with a unified side lug, the uniform heating effect of the battery core is better, the structure of the winding core 1 is a winding structure or a laminated structure, the design of a transverse large winding core structure is adopted, multiple cutting of a pole piece is avoided, the production cost is reduced, and the processing efficiency of the battery core is improved, the two winding cores 1 are oppositely arranged and fixed together through adhesive tapes 2-1 to form a winding core group 2, and the copper protective sheets 1-5 and the aluminum protective sheets 1-3 are arranged on the outer side of the winding core group 2.
The white aluminum foil 1-2 is welded to the positive electrode conductive handle 3-3 through laser or ultrasonic, and the white copper foil 1-4 is welded to the negative electrode conductive handle 3-5 through laser or ultrasonic.
The insulation side cover 6-1 is fixed on the upper insulation piece 4-1 of the battery cover plate 3 through the second buckle 6-2, so that the external insulation of the positive end and the negative end is realized.
The insulating paster 7-1 is pasted on the front 7-2, the bottom 7-3 and the back 7-4 of the winding core group 2 and the insulating side cover 6-1, so that the winding core group 2 is insulated from the outside.
The inside of aluminum hull 8 is equipped with the core group 2 that realizes external insulation to follow through laser welding battery apron 3 with the contact surface 9 of aluminum hull 8 welds the two together, realizes sealing connection, and electric core structure and assembly process are simple high-efficient.
The scheme of this embodiment lithium cell apron and use aluminum-shell battery of this apron specifically operates as: firstly, pre-welding a core lug: placing a copper protection sheet 1-5 and an aluminum protection sheet 1-3 on one side of the white copper foil 1-4 and the white aluminum foil 1-2 respectively, and performing pre-welding 1-6 by ultrasonic welding, wherein the copper protection sheet 1-5 and the aluminum protection sheet 1-3 are on the same side; secondly, forming a roll core group: the two winding cores 1 are oppositely arranged, the copper protective plates 1-5 and the aluminum protective plates 1-3 are arranged on the outer sides, and the two winding cores 1 are fixed together through adhesive tapes 2-1; thirdly, preparing a battery cover plate: the positive electrode conductive handle 3-3 is fixed on the light cover plate 3-1 through positive electrode sealing plastic 3-2, sealing insulation is realized through the positive electrode sealing plastic 3-2, and the negative electrode conductive handle 3-5 is fixed on the light cover plate 3-1 in the same way; fourthly, the cover plate is connected with the winding core group: the winding core group 2 connects the white copper foil 1-4 to the negative conductive handle 3-5 of the battery cover plate 3 through ultrasonic wave or laser welding, and connects the white aluminum foil 1-2 to the positive conductive handle 3-3 of the battery cover plate 3; fifthly, assembling the insulation side cover: fixing the insulation side cover 6-1 on the upper insulation piece 4-1 of the battery cover plate 3 through a second buckle 6-2; sixthly, assembling the insulating paster: the insulating paster 7-1 is pasted on the front surface 7-2, the bottom surface 7-3 and the back surface 7-4 of the winding core group 3 and the insulating side cover 6-1; seventhly, entering an aluminum shell: the winding core group 2 is filled into an aluminum shell 8; eighthly, welding an aluminum shell cover plate: the aluminum shell 8 and the battery cover plate 3 are connected together by laser welding to realize the sealing connection of the two; the battery cover plate and the aluminum-shell battery using the same have the advantages of low cost, high production efficiency, uniform internal temperature distribution, high electrolyte infiltration speed, simple assembly structure and high efficiency.
Example 2
The battery cover plate 3 shown in the figure 3-5 comprises a light cover plate 3-1, wherein a groove 5-1 used for welding an explosion-proof sheet 5-3 is arranged in the middle of the light cover plate 3-1, a liquid injection hole 5-2 used for injecting liquid is arranged in the center of the groove 5-1, the edge 5-4 of the explosion-proof sheet is welded into the groove 5-1 through laser, and a layer of explosion-proof sheet sticking film 5-5 is stuck on the light cover plate 3-1 above the groove 5-1 to protect the explosion-proof sheet 5-3.
The battery cover plate 3 also comprises a positive pole 3-6, a negative pole 3-7, a sealing ring 4-2, an upper insulating part 4-1, a lower insulating part 4-3 and a first buckle 3-8, the positive pole 3-6 and the positive pole conductive handle 3-3 are welded together through riveting or laser, the positive pole conductive handle 3-3 sequentially penetrates through the sealing ring 4-2 and the upper insulating part 4-1 to be pressed on the upper side of the optical cover plate 3-1, the positive pole 3-6 is fixed on the upper side of the optical cover plate 3-1 through the positive pole sealing plastic 3-2 by an injection molding process, the negative pole 3-7 and the negative pole conductive handle 3-5 are welded together through riveting or laser, the negative pole conductive handle 3-5 sequentially penetrates through the sealing ring 4-2 and the upper insulating part 4-1 to be pressed on the upper side of the optical cover plate 3-1, the negative pole sealing plastic 3-4 fixes the negative pole column 3-7 on the upper side of the light cover plate 3-1 through an injection molding process, and then the lower insulating part 4-3 is fixed with the upper insulating part 4-1 through the first buckle 3-8.
As shown in fig. 3-7 and 13-17, the aluminum-casing battery comprises a battery cover plate 3, a winding core 1, an insulating side cover 6-1, an insulating sticker 7-1 and an aluminum casing 8, wherein the battery cover plate 3 comprises a light cover plate 3-1, a groove 5-1 for welding an explosion-proof sheet 5-3 is arranged in the middle of the light cover plate 3-1, a liquid injection hole 5-2 for injecting liquid is arranged in the center of the groove 5-1, and compared with a traditional tab cell with two sides, electrolyte is injected from the top of the winding core 1 through the liquid injection hole 5-2, so that two ends of the winding core 1 can be simultaneously infiltrated, the infiltration speed is higher, an edge 5-4 of the explosion-proof sheet is welded into the groove 5-1 through laser, and a layer of explosion-proof sheet adhesive film 5-5 is adhered on the light cover plate 3-1 above the groove 5-1, and protecting the explosion-proof sheet 5-3.
The winding core 1 consists of a coating area 1-1 and a blank area, the blank area comprises a blank copper foil 1-4 and a blank aluminum foil 1-2, the blank copper foil 1-4 and the blank aluminum foil 1-2 are positioned at two ends of the winding core 1, one side of the blank copper foil 1-4 is pre-welded with a copper protection plate 1-6 through ultrasonic welding, one side of the blank aluminum foil 1-2 is pre-welded with an aluminum protection plate 1-3 through ultrasonic welding, the copper protection plate 1-5 and the aluminum protection plate 1-3 are positioned at the same side, compared with an aluminum shell battery with a unified side lug, the uniform heating effect of the battery core is better, the structure of the winding core 1 is a winding structure or a laminated structure, the design of a transverse large winding core structure is adopted, multiple cutting of a pole piece is avoided, the production cost is reduced, and the processing efficiency of the battery core is improved, the two winding cores 1 are oppositely arranged and fixed together through adhesive tapes 2-1 to form a winding core group 2, and the copper protective sheets 1-5 and the aluminum protective sheets 1-3 are arranged on the outer side of the winding core group 2.
The white aluminum foil 1-2 is welded to the positive electrode conductive handle 3-3 through laser or ultrasonic, and the white copper foil 1-4 is welded to the negative electrode conductive handle 3-5 through laser or ultrasonic.
The insulation side cover 6-1 is fixed on the upper insulation piece 4-1 of the battery cover plate 3 through the second buckle 6-2, so that the external insulation of the positive end and the negative end is realized.
The insulating paster 7-1 is pasted on the front 7-2, the bottom 7-3 and the back 7-4 of the winding core group 2 and the insulating side cover 6-1, so that the winding core group 2 is insulated from the outside.
The inside of aluminum hull 8 is equipped with the core group 2 that realizes external insulation to follow through laser welding battery apron 3 with the contact surface 9 of aluminum hull 8 welds the two together, realizes sealing connection, and electric core structure and assembly process are simple high-efficient.
The scheme of this embodiment lithium cell apron and use aluminum-shell battery of this apron specifically operates as: firstly, pre-welding a core lug: placing a copper protection sheet 1-5 and an aluminum protection sheet 1-3 on one side of the white copper foil 1-4 and the white aluminum foil 1-2 respectively, and performing pre-welding 1-6 by ultrasonic welding, wherein the copper protection sheet 1-5 and the aluminum protection sheet 1-3 are on the same side; secondly, forming a roll core group: the two winding cores 1 are oppositely arranged, the copper protective plates 1-5 and the aluminum protective plates 1-3 are arranged on the outer sides, and the two winding cores 1 are fixed together through adhesive tapes 2-1; thirdly, preparing a battery cover plate: the positive electrode conductive handle 3-3 sequentially penetrates through a sealing ring 4-2 and an upper insulating part 4-1 to be pressed on the upper side of the optical cover plate 3-1, a positive electrode column 3-6 is fixed on the upper side of the optical cover plate 3-1 through positive electrode sealing plastic 3-2 through an injection molding process, a negative electrode conductive handle 3-5 is fixed on the upper side of the optical cover plate 3-1 in the same way, and then the lower insulating part 4-3 is fixed with the upper insulating part 4-1 through a first buckle 3-8; fourthly, the cover plate is connected with the winding core group: the winding core group 2 connects the white copper foil 1-4 to the negative conductive handle 3-5 of the battery cover plate 3 through ultrasonic wave or laser welding, and connects the white aluminum foil 1-2 to the positive conductive handle 3-3 of the battery cover plate 3; fifthly, assembling the insulation side cover: fixing the insulation side cover 6-1 on the upper insulation piece 4-1 of the battery cover plate 3 through a second buckle 6-2; sixthly, assembling the insulating paster: the insulating paster 7-1 is pasted on the front surface 7-2, the bottom surface 7-3 and the back surface 7-4 of the winding core group 3 and the insulating side cover 6-1; seventhly, entering an aluminum shell: the winding core group 2 is filled into an aluminum shell 8; eighthly, welding an aluminum shell cover plate: the aluminum shell 8 and the battery cover plate 3 are connected together by laser welding to realize the sealing connection of the two; the battery cover plate and the aluminum-shell battery using the same have the advantages of low cost, high production efficiency, uniform internal temperature distribution, high electrolyte infiltration speed, simple assembly structure and high efficiency.
Claims (9)
1. A battery cover plate comprising a light cover plate, characterized in that: the middle of light apron is provided with the recess that is used for welding the explosion-proof piece, the center of recess is provided with the notes liquid hole that is used for annotating the liquid, and the explosion-proof piece edge is received through laser welding in the recess, and the one deck explosion-proof piece pad pasting is pasted on the light apron of recess top, protects the explosion-proof piece.
2. A battery cover plate according to claim 1, wherein: it still includes anodal sealed plastic, anodal electrically conductive handle, the sealed plastic of negative pole, the electrically conductive handle of negative pole, and anodal electrically conductive handle is fixed through anodal sealed plastic the upside of light apron just realizes sealed insulation through anodal sealed plastic, and the electrically conductive handle of negative pole is fixed through the sealed plastic of negative pole the upside of light apron just realizes sealed insulation through the sealed plastic of negative pole.
3. A battery cover plate according to claim 1, wherein: it still includes anodal post, negative pole post, sealing washer, goes up the insulating part, first buckle down, and anodal post and anodal electrically conductive handle are in the same place through riveting or laser-beam welding, and anodal electrically conductive handle passes the sealing washer in proper order and goes up the insulating part and press the upside of light apron, anodal sealed plastic is fixed the anodal post through injection molding process the upside of light apron, the electrically conductive handle of negative pole post and negative pole are in the same place through riveting or laser-beam welding, and the electrically conductive handle of negative pole passes the sealing washer in proper order and goes up the insulating part and press the upside of light apron, the sealed plastic of negative pole is fixed the negative pole post through injection molding process the upside of light apron, then the insulating part is fixed through first buckle and last insulating.
4. The utility model provides an aluminum-shell battery, includes battery apron, book core, insulating side cap, insulating sticker, aluminum hull, battery apron include the light apron, its characterized in that: the middle of light apron is provided with the recess that is used for welding the explosion-proof piece, the center of recess is provided with the notes liquid hole that is used for annotating the liquid, and the explosion-proof piece edge is received through laser welding in the recess, and the one deck explosion-proof piece pad pasting is pasted on the light apron of recess top, protects the explosion-proof piece.
5. The aluminum-can battery of claim 4, wherein: the roll core by the coating district with leave white district and constitute, leave white district including leaving white copper foil and leaving white aluminium foil, leave white copper foil and leave white aluminium foil and be located the both ends of roll core, one side of leaving white copper foil has been pre-welded through ultrasonic bonding to the copper screening glass, and one side of leaving white aluminium foil has been pre-welded through ultrasonic bonding to the aluminium screening glass, and copper screening glass and aluminium screening glass are in same one side, the structure of roll core is winding structure or lamination, two the roll core set up relatively and fix together through the sticky tape, form a roll core group, and copper screening glass and aluminium screening glass set up the outside at roll core group.
6. An aluminum-can battery as defined in claim 5, wherein: the white aluminum foil is welded on the positive conductive handle through laser or ultrasonic, and the white copper foil is welded on the negative conductive handle through laser or ultrasonic.
7. The aluminum-can battery of claim 4, wherein: the insulating side cover is fixed on an upper insulating part of the battery cover plate through a second buckle, and external insulation of the positive end and the negative end is achieved.
8. The aluminum-can battery of claim 4, wherein: the insulating paster is pasted on the front, the bottom and the back of the winding core group and the insulating side cover, so that the winding core group is insulated from the outside.
9. The aluminum-can battery of claim 4, wherein: the coil core group for realizing external insulation is arranged in the aluminum shell, and the battery cover plate and the aluminum shell are welded together along the contact surface of the battery cover plate and the aluminum shell through laser welding to realize sealing connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020826375.4U CN211700346U (en) | 2020-05-18 | 2020-05-18 | Battery cover plate and aluminum-shell battery using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020826375.4U CN211700346U (en) | 2020-05-18 | 2020-05-18 | Battery cover plate and aluminum-shell battery using same |
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| Publication Number | Publication Date |
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| CN211700346U true CN211700346U (en) | 2020-10-16 |
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| CN202020826375.4U Active CN211700346U (en) | 2020-05-18 | 2020-05-18 | Battery cover plate and aluminum-shell battery using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115189077A (en) * | 2022-09-06 | 2022-10-14 | 楚能新能源股份有限公司 | Square battery cell, assembling method of square battery cell and battery module |
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2020
- 2020-05-18 CN CN202020826375.4U patent/CN211700346U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115189077A (en) * | 2022-09-06 | 2022-10-14 | 楚能新能源股份有限公司 | Square battery cell, assembling method of square battery cell and battery module |
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