CN111564577A - Battery structure with cap support - Google Patents
Battery structure with cap support Download PDFInfo
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- CN111564577A CN111564577A CN202010399024.4A CN202010399024A CN111564577A CN 111564577 A CN111564577 A CN 111564577A CN 202010399024 A CN202010399024 A CN 202010399024A CN 111564577 A CN111564577 A CN 111564577A
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- battery
- cap
- shell
- explosion
- groove
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- 238000007789 sealing Methods 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims description 86
- 230000003014 reinforcing effect Effects 0.000 claims description 34
- 239000000463 material Substances 0.000 claims description 14
- 238000004880 explosion Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 239000004831 Hot glue Substances 0.000 description 12
- 239000012943 hotmelt Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000002787 reinforcement Effects 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/152—Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/107—Primary casings; Jackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/375—Vent means sensitive to or responsive to temperature
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention provides a battery structure with a cap bracket, which comprises a shell, a battery core and a cap, wherein the shell is provided with a plurality of through holes; the shell is used for mounting components and is of a hollow cylindrical structure with one open end; the battery cell is arranged in the shell and used for providing electric energy; the cover cap is arranged at an opening at one end of the shell and used for sealing the opening of the shell and leading out the electrode of the battery cell, wherein a support used for supporting the cover cap is arranged in the shell. According to the battery structure with the cap support, the support for supporting the cap is arranged in the shell, so that the assembly process of the battery is simplified, the structure of the shell is optimized, the shell can contain a large-capacity battery cell, the integral capacity of the battery structure is increased, and the practicability of the battery is improved.
Description
Technical Field
The invention relates to the field of batteries, in particular to a battery structure with a cap bracket.
Background
A battery is a device that converts chemical energy into electrical energy. With the progress of science and technology, people's life is more and more intelligent and convenient, and the appearance of various domestic appliances has reduced people's the amount of labour, and the battery is one of the indispensable configuration of electrical equipment continuation of the journey.
In the manufacturing process of the existing battery, the battery core and the cap are separated through the rolling groove process, the steps are complex, the production efficiency is low, the size occupied by the overall structure of the battery processed through the rolling groove process is large, the space for fixing the battery core inside the battery shell is small, the structural design of the battery is unreasonable, the internal space of the shell cannot be fully utilized, the battery roll core with small capacity can only be placed, and the overall practicability of the battery structure is low. It is desirable to provide a battery structure with a cap bracket to solve the above technical problems.
Disclosure of Invention
The invention provides a battery structure with a cap bracket, wherein the bracket for supporting a cap is arranged in a shell, one side of an extension part of the bracket is connected with the inner wall of the shell, and the other side of the extension part of the bracket is contacted with the outer wall of the cap and is insulated; the supporting part of support is used for supporting the battery block to separate electric core and block, it is reasonable inadequately to have the structural design that exists more in the battery structure who has the block upper bracket among the prior art, thereby because the little problem of battery inner space capacity that the rolling slot technology preparation battery leads to have solved.
In order to solve the technical problems, the technical scheme of the invention is as follows: a battery structure having a cap holder, comprising:
the shell is used for mounting components and is of a hollow cylindrical structure with one open end;
the battery cell is arranged in the shell and used for providing electric energy; and
the cap is arranged at an opening at one end of the shell, is used for sealing the opening of the shell, is connected with the battery cell and is used for leading out an electrode of the battery cell;
the shell is internally provided with a support, and the support is used for supporting the cap and spacing the cap from one end of the battery core.
In the invention, the support is of a cylindrical structure and is sleeved with the battery cell, and the side wall of the battery cell is in insulated contact with the inner wall of the support.
In the invention, the thickness of the connecting part without the explosion-proof groove area is between 0.2mm and 1mm, and the thickness of the connecting part with the explosion-proof groove area is between 0.02mm and 0.2 mm.
In the invention, the explosion-proof structure comprises a safety valve cover plate and a hot-melt material.
The connecting portion outside is provided with the second recess, the relief valve metal cover sets up in the second recess, just the relief valve metal cover pass through hot melt material with metal connecting piece connects, metal connecting piece's connecting portion are provided with the disappointing passageway of second, the disappointing passageway of second will first recess with the inside intercommunication of casing is used for discharging the high-pressure gas that electric core produced.
In the present invention, the hot melt material is preferably a heat-sensitive hot melt adhesive.
In the invention, the insulating plastic part wraps the periphery of the metal connecting piece, and the insulating plastic part comprises
The first end part is arranged at one end of the insulating plastic part, is positioned at one side of the metal connecting part and is used for isolating and insulating the outer side of the metal connecting part from the sealing structure;
a second end portion provided at the other end of the insulating plastic part and located at the other side of the metal connecting part, for isolating and insulating the inside of the metal connecting part from the supporting portion,
the middle connecting part is arranged in the middle of the insulating plastic part, the first end part is connected with the second end part through the middle connecting part, and the middle connecting part is arranged around the metal connecting part and used for isolating and insulating the periphery of the metal connecting part and the inner wall of the shell.
In the invention, the metal connecting piece and the insulating plastic piece are of an integrally formed structure. The integrally formed cap is simple in structure, the thickness of a cap finished product is small, and battery assembly is facilitated.
In the invention, the included angle between the first supporting part and the first extending part ranges from 85 degrees to 95 degrees.
Compared with the prior art, the invention has the beneficial effects that: according to the battery structure with the cap support, the cap is supported by the support for supporting the cap arranged in the shell, and the cap is separated from the battery core, so that the structure not only simplifies the assembly process of the battery, but also improves the comprehensive efficiency of battery production; and optimized the structure of casing, make full use of the inner space of casing for the electric core of casing capacity can be held, the capacity of battery is increased, the practicality of battery structure has been promoted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding to some embodiments of the present invention.
Fig. 1 is a perspective view of a first embodiment of a battery structure having a cap holder of the present invention.
Fig. 2 is a cross-sectional view of a first embodiment of a battery structure having a cap holder of the present invention.
Fig. 3 is an enlarged view of a portion of a structure in fig. 2.
Fig. 4 is an exploded view of the cross-sectional structure of the first embodiment of the battery structure having the cap holder of the present invention.
Fig. 5 is a schematic structural diagram of the battery structure with the cap holder according to the first embodiment of the present invention before the case is stamped to form the sealing structure.
Fig. 6 is a schematic structural view of an insulating plastic member before a sealing structure is formed by stamping the case of the battery structure with the cap holder according to the first embodiment of the present invention.
Fig. 7 is an enlarged view of the structure at B of fig. 6.
Fig. 8 is a perspective view of a second cap structure of the first embodiment of the battery structure with a cap holder of the present invention.
Fig. 9 is a cross-sectional view of a second cap structure of the first embodiment of the battery structure with a cap holder of the present invention.
Fig. 10 is a cross-sectional view of a second cap structure of the first embodiment of the battery structure with a cap holder of the present invention.
Fig. 11 is a perspective view of a second embodiment of a battery structure having a cap holder in accordance with the present invention.
Fig. 12 is a sectional view showing the structure of a battery having a cap holder according to a second embodiment of the present invention.
Fig. 13 is an enlarged view of the structure at C of fig. 12.
Fig. 14 is an explosion-proof view of the cross-sectional structure of the second embodiment of the battery structure having a cap holder according to the present invention.
Fig. 15 is a perspective view of a second cap structure of the second embodiment of the battery structure with a cap holder of the present invention.
Fig. 16 is a cross-sectional view of a second cap structure of the second embodiment of the battery structure having a cap holder of the present invention.
Fig. 17 is an enlarged schematic view of the cap structure in fig. 16.
Fig. 18 is a perspective view of a third embodiment of a battery structure with a cap holder of the present invention.
Fig. 19 is a bottom view of a third embodiment of the battery structure of the present invention having a cap holder.
Fig. 20 is a cross-sectional view of a third embodiment of a battery structure of the present invention having a cap holder.
Fig. 21 is an enlarged view of a portion of the structure of fig. 20.
Fig. 22 is a cross-sectional exploded view of a third embodiment of a battery structure having a cap holder of the present invention.
Fig. 23 is a schematic cross-sectional view of a second cap structure in a third embodiment of a battery structure having a cap holder according to the present invention.
Fig. 24 is an enlarged view of the structure at D in fig. 23.
Reference numbers for the first embodiment: the battery comprises a shell 11, a sealing structure 111, a bracket 112, a first extending part 1121, a first supporting part 1122, a second reinforcing part 1123, a bottom plate 113, a battery cell 12, a positive electrode tab 121, a negative electrode tab 122, a first insulating sheet 123, a second insulating sheet 124, a cap 13, a metal connecting piece 131, a connecting part 1311, an explosion-proof groove 1311a, an insulating plastic piece 132, a first end part 1321, a middle connecting part 1322, a clamping reinforcing rib 13211, a second end part 1323 and a sealing rib 13231;
second structure of the cap: the cover cap 23, the metal connecting piece 231, the connecting part 2311, the first groove 2311a, the first air release channel 2311b, the safety valve metal cover 2312 and the heat-sensitive hot melt adhesive 2313.
Reference numerals of the second embodiment: the battery comprises a shell 31, a sealing structure 311, a bracket 312, a second extending portion 3121, a second supporting portion 3122, a second reinforcing portion 3123, a bottom plate 313, a battery cell 32, a positive electrode tab 321, a negative electrode tab 322, a first insulating sheet 323, a second insulating sheet 324, a cap 33, a metal connecting piece 331, a connecting portion 3311, an explosion-proof slot 3311a and an insulating plastic piece 332;
second structure of the cap: the cap 43, the metal connecting piece 431, the connecting part 4311, the second groove 4311a, the second air escape channel 4311b, the safety valve metal cover 4312 and the heat-sensitive hot melt adhesive 4313.
Third embodiment reference numerals: the battery comprises a shell 51, a sealing structure 511, a bracket 512, a third extending part 5121, a third supporting part 5122, a third reinforcing part 5123, a bottom plate 513, a third groove 5131, a third air release channel 5132, a safety valve cover plate 514, a hot melt material 515, a battery cell 52, a positive pole tab 521, a negative pole tab 522 and a cap 53;
second structure of the stent: a bracket 61, a fourth extension portion 6121, a fourth support portion 6125, and a fourth reinforcement portion 6126.
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.
In the drawings, elements having similar structures are denoted by the same reference numerals.
The terms "first," "second," and the like in the terms of the invention are used for descriptive purposes only and not for purposes of indication or implication relative importance, nor as a limitation on the order of precedence.
Referring to fig. 1, fig. 2 and fig. 3, wherein fig. 1 is a perspective view of a first embodiment of a battery structure with a cap holder according to the present invention, fig. 2 is a cross-sectional view of the first embodiment of the battery structure with the cap holder according to the present invention, and fig. 3 is an enlarged view of a portion of a structure at a position a in fig. 2.
The present invention provides a battery structure with a cap holder, which can solve the above technical problems, and the battery structure comprises a casing 11, a battery cell 12 and a cap 13; the shell 11 is used for mounting components, and the shell 11 is a hollow cylindrical structure with one open end; the battery cell 12 is arranged in the shell 11 and used for providing electric energy; a cap 13 is provided at an opening at one end of the housing 11 for sealing the opening of the housing 11.
Wherein, a sealing structure 111 is arranged at an opening at one end of the shell 11, and the sealing structure 111 is used for limiting the position of the outer side of the cap 13; the housing 11 is provided inside with a bracket 112 for supporting the cap 13, and the bracket 112 supports the cap 13 and spaces the cap 13 from one end of the cell 12.
Referring to fig. 2 and 4, fig. 2 is a sectional view of a first embodiment of a battery structure having a cap holder according to the present invention, and fig. 4 is an exploded sectional view of the first embodiment of the battery structure having the cap holder according to the present invention. The structure of the battery cell 12 in this embodiment is explained:
in this embodiment, the battery cell 12 includes a positive tab 121 and a negative tab 122; the positive electrode tab 121 of the battery cell 12 is connected to the battery cap 13, and the negative electrode tab 122 of the battery cell 12 is connected to the casing 11.
The housing 11 in this embodiment is a steel housing, and the housing 11 includes a bottom plate 113 coupled to the cap 13. The battery cell 12 in this embodiment is formed into a spiral columnar structure by sequentially stacking and winding a positive electrode plate, an insulating diaphragm, and a negative electrode plate. A first insulating sheet 123 is arranged between the battery cell 12 and the bottom plate 113, one end of a negative electrode tab 122 is connected with a negative electrode sheet of the battery cell 12, and the other end of the negative electrode tab 122 penetrates through the first insulating sheet 123 and extends along the inner side of the bottom plate 113; the negative electrode tab 122 in this embodiment is welded to the case 11 from the outside to the inside.
In this embodiment, a second insulating sheet 124 is disposed between the battery cell 12 and the cap 13, one end of the positive electrode tab 121 is connected to the positive electrode plate of the battery cell 12, and the other end of the positive electrode tab 121 penetrates through the first insulating sheet 123 and extends along the inner side of the connecting portion 1311; the second insulating sheet 124 in this embodiment is provided with a plurality of heat dissipation holes for dissipating heat from the battery cells 12.
Referring to fig. 2 and 3, the structure of the bracket 112 in the present embodiment is illustrated:
the bracket 112 provided in this embodiment includes a first extending portion 1121 and a first supporting portion 1122; the first extension portion 1121 is disposed at one end of the inside of the casing 11, which is far away from the opening, a long side of the first extension portion 1121 is axially parallel to the casing 11, one side of the first extension portion 1121 is connected to the inner wall of the casing 11, and the other side of the first extension portion 1121 is in contact with and insulated from the outer wall of the battery cell 12; the first supporting portion 1122 is connected to an end of the first extending portion 1121 near the opening of the housing 11, and the first supporting portion 1122 is located at an end of the bracket 112 near the opening of the housing 11 and extends along the inside of the housing 11 for supporting the battery cap 13.
In this embodiment, the bracket 112 is a cylindrical structure and is sleeved with the battery cell 12; the bracket 112 has a simple structure, and the assembly efficiency of the battery product is improved.
In this embodiment, an included angle between the first supporting portion 1122 and the first extending portion 1121 ranges from 85 ° to 95 °. Preferably, in the present embodiment, an included angle between the supporting portion 1122 of the bracket 112 and the extending portion 1121 is a right angle, so as to support the cap 13 conveniently.
In this embodiment, the bracket 112 further includes a first reinforcing portion 1123 for reinforcing the rigidity of the bracket 112, one end of the first reinforcing portion 1123 is connected to one end of the supporting portion 1122, the other end of the first reinforcing portion 1123 is connected to the extending portion 1121, the thickness of the first reinforcing portion 1123 is greater than the thickness of the supporting portion 1122, and the thickness of the first reinforcing portion 1123 is greater than the thickness of the extending portion 1121.
The cap 13 in the present embodiment is explained with reference to fig. 2 and 4:
in this embodiment, the cap 13 includes a metal connecting member 131 and an insulating plastic member 132, the metal connecting member 131 is disposed at the opening of the casing 11 and connected to the positive electrode tab 121 of the electric core 12, and the metal connecting member 131 is used for leading out the positive electrode of the electric core 12; the insulating plastic member 132 is disposed around the metal connecting member 131 for insulating and protecting the metal connecting member 131 from the inner wall of the housing 11; the metal connector 131 includes a connection portion 1311, the connection portion 1311 is located at the center of the metal connector 131, and the connection portion 1311 is connected to the positive electrode tab 121 of the battery cell 12.
Referring to fig. 4, the insulating plastic member 132 of the present embodiment includes a first end portion 1321, a second end portion 1323, and an intermediate connecting portion 1322. The first end portion 1321 is disposed at one end of the insulating plastic part 132, and is used for isolating and insulating one side of the metal connecting part 131 away from the cell 12 from the sealing structure 111; in this embodiment, the first end 1321 of the insulating plastic member 132 isolates and insulates the metal connecting member 131 from the sealing structure 111 on the side away from the battery cell 12. The second end 1323 is disposed at the other end of the insulating plastic member 132 and extends along the surface of the first support 1122 to isolate and insulate the other side of the metal connecting member 131 from the first support 1122; the second end 1323 of the insulating plastic member 132 in this embodiment is used for isolating and insulating the inner side of the metal connecting member 131 from the first supporting portion 1122; the middle connection part 1322 is disposed in the middle of the insulating plastic part 132 for connecting the first end part 1321 and the second end part 1323, and the middle connection part 1322 is disposed around the metal connection part 131 for isolating and insulating the periphery of the metal connection part 131 from the inner wall of the housing 11.
In this embodiment, a clamping rib is disposed on one side of the first end portion 1321 of the insulating plastic member 132 close to the metal connecting member 131, and the clamping rib is used to enhance the strength of the insulating plastic member 132. In this embodiment, at least one sealing rib 13231 is disposed on a side of the second end 1323 of the insulating plastic member 132 close to the metal connecting member 131, and the sealing rib 13231 is used to connect the second end 1323 with the inside of the metal connecting member 131 in a sealing manner, so as to improve the sealing performance of the cap 13.
Referring to fig. 5, fig. 6 and fig. 7, fig. 5 is a schematic structural view of the first embodiment of the battery structure with the cap holder according to the present invention before the case is stamped to form the sealing structure; fig. 6 is a schematic structural view of an insulating plastic member before a sealing structure is formed by stamping the case of the battery structure with the cap holder according to the first embodiment of the present invention; fig. 7 is an enlarged view of the structure at B of fig. 6. The structure of the insulating plastic member 132 before the sealing structure 111 is formed by the housing 11 in this embodiment is described in detail:
before the housing 11 is stamped to form the sealing structure, the first end 1321 of the insulating plastic member 132 extends along the long side of the middle connecting portion 1322 before the deformation; at this time, the thickness of the first end portion 1321 is between 0.1mm and 1 mm; the thickness of the second end 1323 before deformation is between 0.1mm and 1 mm; in this embodiment, the thickness of the first end 1321 of the insulating plastic part 132 before deformation is less than or equal to the thickness of the second end 1322.
The retaining rib structure before deformation is 13211 shown in the figure, and the sealing rib structure before deformation is 13231 shown in the figure. Before the shell 11 is not stamped to form a sealing structure, the width of the clamping reinforcing rib 13211 is between 0.1mm and 0.5mm, and the thickness of the clamping reinforcing rib 13211 is between 0.05mm and 0.2 mm; the width of the sealing rib 13231 is between 0.1mm and 0.5 mm; the thickness of the sealing rib 13231 is between 0.03mm and 0.2 mm.
Before assembling the battery structure, the size of the insulating plastic part 132 in the embodiment is limited, which is convenient for injection molding and demolding in the production process of the insulating plastic part 132; and the subsequent assembly of the cap 13 is convenient, and the sealing performance and the stability of the whole structure of the battery product are improved.
With reference to fig. 1, fig. 2 and fig. 4, in this embodiment, an explosion-proof structure is disposed on an outer side surface of the metal connector 131 away from the battery cell 12. The explosion-proof structure in this embodiment is the first explosion-proof structure provided in this embodiment, and includes an explosion-proof groove 1311a, and the explosion-proof groove 1311a is disposed at a connecting portion 1311 of the metal connecting member 131 from outside to inside.
In the invention, the explosion-proof groove 1311a is formed by punching the metal connecting piece 131 from outside to inside; the shape of the explosion-proof groove 1311a may be a ring-shaped, "U" -shaped or linear structure. The shape of the explosion-proof groove 1311a in this embodiment is preferably a "U" shaped structure.
The length of the cross section of the opening of the explosion-proof groove 1311a is greater than or equal to the length of the cross section of the bottom end of the explosion-proof groove 1311 a. In the present invention, the cross-sectional shape of the explosion-proof groove 1311a may be a "V" shape, a "U" shape, a rectangular shape with an open top end, or an inverted trapezoidal structure. The sectional structure of the explosion-proof tank 1311a of this embodiment is preferably an inverted trapezoidal structure.
In the metal connector 131 of this embodiment, the thickness of the connecting portion 1311 in the region where the explosion-proof groove 1311a is not provided is 0.2mm to 1mm, and the thickness of the connecting portion 1311 in the region where the explosion-proof groove 1311a is provided is 0.02mm to 0.2 mm.
In addition, the outer side of the metal connector 131 in this embodiment is provided with a reinforcing rib for increasing the strength of the metal connector 131.
The ratio of the height of the battery to the diameter of the battery in the embodiment is less than or equal to 1 so as to meet the requirements of part of button batteries on the market.
In the battery structure in the embodiment, the bracket 112 for supporting the cap 13 is arranged in the shell 11, so that a groove rolling process in the battery manufacturing process is eliminated; therefore, the assembly process of the battery is simplified, the comprehensive efficiency of the battery production is improved, and the cost of the battery production is reduced. The structure not only avoids the problems of battery leakage caused by the rolling groove process and the extrusion of the battery core by the inner wall of the rolling groove in the battery processing process; and need not restrict steel casing lateral wall thickness, promoted battery structure's suitability, the casing in this embodiment can adopt the thickness to be less than or equal to 0.15mm sheet metal.
Referring to fig. 8, 9 and 10, fig. 8 is a perspective view of a second cap structure of the first embodiment of the battery structure with a cap holder according to the present invention, fig. 9 is a sectional view of the second cap structure of the first embodiment of the battery structure with a cap holder according to the present invention, and fig. 10 is a sectional view of the second cap structure of the first embodiment of the battery structure with a cap holder according to the present invention. A second structure of the cap in the present embodiment is provided as follows for explanation:
in this embodiment, the cap 23 includes a metal connector 231 and an insulating plastic part 232, in this embodiment, the metal connector 231 includes a connecting portion 2311 for connecting with the positive electrode plate 221 of the battery cell 22; the outer side surface of the metal connecting piece 231 away from the battery cell 22 is provided with an explosion-proof structure. The explosion-proof structure in this embodiment includes a safety valve metal cap 2312 and a hot-melt material.
In this embodiment, the hot melt material is preferably a heat sensitive hot melt adhesive 2313.
In this embodiment, a first groove 2311a is formed in the metal connecting piece 231 on the outer side of the connecting portion 2311, a safety valve metal cover 2312 is arranged in the first groove 2311a, and the safety valve metal cover 2312 is connected with the metal connecting piece 231 through a first thermosensitive material; the connection portion 2311 of the metal connector 231 is provided with a first air escape passage 2311b, and the first air escape passage 2311b communicates the first groove 2311a with the inside of the battery case 21 for discharging high-pressure gas generated from the battery cell 22.
In this embodiment, the depth of the first groove 2311a is 0.2mm to 1 mm.
The sectional shape of the first groove 2311a in this embodiment is circular, elliptical, or polygonal, and the sectional shape of the safety valve metal cover 2312 matches the sectional shape of the first groove 2311 a.
Further, a flange for defining the position of the safety valve metal cover 2312 may be provided in the first groove 2311a in the present embodiment.
In the battery structure of the embodiment, in a normal operation state of the battery core 22, the safety valve metal cover 2312 fixedly seals the first air escape channel 2311b through a hot-melt material. When the battery is heated, the surface temperature of the battery core 22 rises to the melting temperature range of the heat-sensitive hot melt adhesive 2313, and the heat-sensitive hot melt adhesive 2313 loses the bonding capability; the safety valve metal cover 2312 is pushed open by the high-pressure gas inside the case 21; the high-pressure gas inside the battery is discharged, and the pressure inside the battery cell 22 is reduced until the normal state is restored. Thereby avoiding unsafe accidents such as battery ignition or explosion and the like and improving the use safety of the battery.
The explosion-proof structure of this embodiment circulated use has promoted the safety in utilization of battery, has prolonged the life of battery. The safety valve metal cover 2312 and the thermosensitive material are arranged in the cover cap in the explosion-proof structure, and when the high-pressure gas of the battery is discharged by the explosion-proof structure, extra space in the height direction is not required to be reserved in the whole structure of the battery; therefore, the thickness of the finished product of the cap 23 is reduced, the shell 21 can accommodate a larger battery core, the capacity of the battery is increased, and the practicability of the battery is improved.
Referring to fig. 11, 12 and 14, fig. 11 is a perspective view of a second embodiment of the battery structure with the cap holder according to the present invention, fig. 12 is a sectional view of the second embodiment of the battery structure with the cap holder according to the present invention, and fig. 14 is an explosion-proof view of the sectional structure of the second embodiment of the battery structure with the cap holder according to the present invention. The battery structure with the cap holder of the present invention is provided as follows:
the battery structure comprises a shell 31, a battery core 32 and a cover cap 33; the shell 31 is used for mounting components, and the shell 31 is a hollow cylindrical structure with one open end; the battery cell 32 is arranged in the shell 31 and used for providing electric energy; the cap 33 is disposed at an opening at one end of the casing 31, and is used for sealing the opening of the casing 31 and leading out the positive electrode of the battery cell 32.
Wherein, a sealing structure 311 is arranged at an opening at one end of the shell 31, and the sealing structure 311 is used for limiting the position of the outer side of the cap 33; a support 312 for supporting the cap 33 is provided inside the case 31, and the support 312 supports the cap 32 and spaces the cap 33 from one end of the battery cell 32.
With reference to fig. 13, fig. 13 is an enlarged schematic view of the structure at C of fig. 12. The structure of the bracket 312 in this embodiment is explained:
the bracket 312 provided in this embodiment includes a second extending portion 3121 and a second supporting portion 3122; the extending part 3121 is arranged at one end near the opening in the shell 31, the long side of the second extending part 3121 is parallel to the axial direction of the shell 31, and one side of the second extending part 3121 is connected with the inner wall of the shell 31, and the other side of the second extending part 3121 is contacted with the outer wall of the cap 33 and insulated; the second support portion 3122 is located at the other end of the bracket, and the support portion 3122 is connected to one end of the extending portion 3121 away from the opening of the case 31 and extends along the inside of the case 31 for supporting the battery cap 33.
In this embodiment, the bracket 312 is a cylindrical structure, and the bracket 312 is sleeved with the insulating plastic member 322. In this embodiment, an included angle between the second supporting portion 3122 and the second extending portion 3121 is between 85 ° and 95 °. Preferably, in this embodiment, an included angle between the second supporting portion 3122 and the second extending portion 3121 of the bracket 312 is a right angle, so as to support the cap 33, and fully utilize the inner space of the housing 31.
In this embodiment, the bracket 312 further includes a second reinforcement portion 3123 for reinforcing rigidity of the bracket 312, one end of the second reinforcement portion 3123 is connected to one end of the second support portion 3122, the other end of the second reinforcement portion 3123 is connected to the second extension portion 3121, a thickness of the second reinforcement portion 3123 is greater than a thickness of the second support portion 3122, and a thickness of the second reinforcement portion 3123 is greater than a thickness of the second extension portion 3121.
With reference to fig. 14, a structure of the battery cell 32 in this embodiment is described:
the shell 31 in this embodiment is a steel shell 31, and the shell 31 includes a bottom plate 313 connected to a cap 33; the battery cell 32 is sequentially stacked and wound by a positive pole piece, an insulating diaphragm and a negative pole piece to form a spiral columnar structure. The battery cell 32 in this embodiment further includes a positive electrode tab 321 and a negative electrode tab 2322, the positive electrode tab 321 of the battery cell 32 is connected to the battery cap 33, and the negative electrode tab 322 of the battery cell 32 is connected to the casing 31. A first insulating sheet 323 is arranged between the electric core 32 and the bottom plate 313, one end of a negative pole lug 322 is connected with a negative pole electrode of the electric core 32, and the other end of the negative pole lug 322 penetrates through the first insulating sheet 323 and extends along the inner side of the bottom plate 313; the negative electrode tab 322 in this embodiment is welded to the case 31 from the outside to the inside.
In this embodiment, a second insulating sheet 324 is disposed between the battery cell 32 and the cap 33, one end of the positive electrode tab 321 is connected to the positive electrode plate of the battery cell 32, and the other end of the positive electrode tab 321 penetrates through the first insulating sheet 323 and extends along the inner side of the connecting portion 3311; the second insulating sheet 324 in this embodiment is provided with a plurality of heat dissipation holes for dissipating heat of the battery cell 32.
Referring to fig. 12 and 14, the cap 33 in this embodiment includes a metal connector 331 and an insulating plastic part 332, the metal connector 331 is disposed at an opening of the casing 31 and connected to the positive electrode tab 321 of the electric core 32, and the metal connector 331 is used to lead out the positive electrode of the electric core 32; the insulating plastic part 332 is disposed around the metal connector 331 for insulating and protecting the metal connector 331 from the inner wall of the housing 31.
The insulating plastic part 332 in this embodiment includes a first end portion 3321, a second end portion 3323, and an intermediate connecting portion 3322. In this embodiment, a clamping rib is disposed on a side of the first end portion 3321 of the insulating plastic part 332 close to the metal connecting part 331, and the clamping rib is used to enhance the strength of the insulating plastic part 322. In this embodiment, at least one sealing rib 33231 is disposed on a side of the second end portion 3323 of the insulating plastic part 332 close to the metal connecting member 331, and the sealing rib 33231 is used for sealing and connecting the second end portion 3323 and the inner side of the metal connecting member 331.
With reference to fig. 12 and 14, in the present embodiment, the outer side surface of the metal connector 331 away from the battery cell 32 is provided with an explosion-proof structure. The first structure of the explosion-proof structure provided in this embodiment includes an explosion-proof slot 3311a, and the explosion-proof slot 3311a is disposed at the connecting portion 3311 of the metal connecting member 331 from outside to inside.
The explosion-proof slot 3311a of the present invention may have a ring-shaped, "U" -shaped or linear configuration. The explosion-proof slots 3311a in this embodiment are preferably of a "U" shaped configuration. The length of the section of the opening of the explosion-proof slot 3311a is greater than or equal to the length of the section of the bottom end of the explosion-proof slot; in this embodiment, the cross-sectional shape of the anti-explosion groove 3311a may be a "V" shape, a "U" shape, a rectangular shape with an open top end, or an inverted trapezoidal structure. The sectional shape of the explosion-proof groove 3311a of this embodiment is an inverted trapezoidal structure.
In the metal connector 331 of the present embodiment, the thickness of the connecting portion 3311 in the region where the explosion-proof groove 3311a is not provided is 0.2mm to 1mm, and the thickness of the connecting portion 3311 in the region where the explosion-proof groove 3311a is provided is 0.02mm to 0.2 mm.
In addition, the metal connecting piece 331 in this embodiment is provided with a reinforcing rib on the outer side thereof for increasing the strength of the metal connecting piece 331.
Compared to the first embodiment, the case 31 of the battery structure of the present embodiment has the bracket 312 built therein for supporting the cap 23, the second support portion 3122 of the bracket 312 supports the cap 33, and the second extension portion 3121 side is connected to the case 31; and the other side of the second extending portion 3121 contacts and is insulated from the outer ring of the insulating plastic part 332. The support 312 of the embodiment has a simplified structure, and reduces the space occupied by the support inside the shell; and the bracket 312 is sleeved on the periphery of the cap 33, and the battery core with larger diameter can be accommodated in the shell 31, so that the battery capacity is increased.
Referring to fig. 15, 16 and 17, fig. 15 is a perspective view of a second cap structure of a second embodiment of the battery structure with a cap holder according to the present invention, fig. 16 is a cross-sectional view of the second cap structure of the second embodiment of the battery structure with a cap holder according to the present invention, and fig. 17 is an enlarged schematic view of the cap structure in fig. 16. A second structure of the cap in the second embodiment of the present invention is provided as follows:
in this embodiment, the cap 43 includes a metal connecting member 431 and an insulating plastic member 432, and in this embodiment, the metal connecting member 431 includes a connecting portion 4311 for connecting with the positive electrode tab 321 of the battery cell 32; the outer side surface of the metal connecting piece 431 far away from the battery cell 32 is provided with an explosion-proof structure. The explosion-proof structure in this embodiment includes a safety valve cover plate 4312 and a hot melt material, preferably a heat-sensitive hot melt adhesive 4313.
In this embodiment, a second groove 4311a is disposed on the outer side of the connecting portion 4311 of the metal connecting member 431, a safety valve metal cover 4312 is disposed in the second groove 4311a, the safety valve metal cover 4312 is connected to the metal connecting member 431 through a heat-sensitive hot melt adhesive 4313, the connecting portion 4311 of the metal connecting member 431 is provided with a second air release channel 4311b, and the second air release channel 4311b communicates the second groove 4311a with the inside of the battery case 31 for exhausting the high-pressure gas generated by the battery cell 32. In this embodiment, the depth of the second groove 4311a is 0.2mm to 1 mm.
The sectional shape of the second groove 4311a is circular, elliptical or polygonal, and the sectional shape of the safety valve metal cap 4312 matches the sectional shape of the second groove 4311 a. The second explosion-proof structure in this embodiment can be repeatedly used, and the practicability of the battery structure is improved.
In the battery structure of the embodiment, in a normal working state of the battery core 32, the safety valve metal cover 4312 fixedly seals the second air release passage 4311b through the heat-sensitive hot melt adhesive 4313. When the battery is heated, the surface temperature of the battery core 32 rises to the melting temperature range of the heat-sensitive hot melt adhesive 4313, and the heat-sensitive hot melt adhesive 4313 loses the bonding capability; the safety valve metal cover 4312 is pushed open by the high-pressure gas inside the housing 31; the high-pressure gas inside the battery is discharged, and the pressure inside the battery cell 32 is reduced until the normal state is restored. Thereby avoiding unsafe accidents such as battery ignition or explosion and the like and improving the use safety of the battery.
The battery structure of this embodiment, on the basis that uses the upper bracket to support the block cap, but still increased the explosion-proof construction of cyclic use, promoted the safety in utilization of battery, prolonged the life of battery. In the explosion-proof structure, the safety valve metal cover 4312 and the thermosensitive material are arranged in the cap, so that when the high-pressure gas of the battery is discharged, the whole structure of the battery does not need to reserve extra space in the height direction; therefore, the thickness of the finished product of the cap 43 is reduced, the shell 31 can accommodate a larger battery core, the capacity of the battery is increased, and the practicability of the battery is improved.
Referring to fig. 18, 19 and 20, fig. 18 is a perspective view of a third embodiment of the battery structure with the cap holder according to the present invention, fig. 19 is a bottom view of the third embodiment of the battery structure with the cap holder according to the present invention, and fig. 20 is a sectional view of the third embodiment of the battery structure with the cap holder according to the present invention. A third embodiment of the battery structure with a cap holder of the present invention is provided as follows:
the battery structure in this embodiment includes a case 51, a battery cell 52, and a cap 53; the shell 51 is used for mounting components, and the shell 51 is a hollow cylindrical structure with one open end; the battery cell 52 is arranged in the shell 51 and used for providing electric energy; a cap 53 is provided at an opening at one end of the housing 51 for sealing the opening of the housing 51.
Wherein, a sealing structure 511 is arranged at an opening at one end of the shell 51, and the sealing structure 511 is used for limiting the position of the outer side of the cap 53; a support 512 for supporting the cap 53 is provided inside the housing 51, and the support 512 is used for spacing the cap 53 from one end of the battery cell 52.
Referring to fig. 21, fig. 21 is an enlarged view of a portion of the structure of fig. 20. In this embodiment, the housing 51 includes a bottom plate 513 opposite to the cap 53, a third groove 5131 is formed at the bottom end of the bottom plate 513, and the third groove 5131 is formed on the outer surface of the bottom plate 513; the bottom plate 513 is provided with a third air release passage 5132, and the third air release passage 5132 connects the third groove 5131 with the inside of the housing 51 for discharging the high-pressure gas generated by the battery cell 52. In this embodiment, a second safety valve cover plate 514 is disposed in the third groove 5131 of the bottom plate 513 of the housing 51, and the second safety valve cover plate 514 is connected to the bottom plate 513 through a heat-fusible material. The hot melt material in this embodiment is preferably a heat sensitive hot melt adhesive 515.
Referring to fig. 20 and 22, fig. 20 is a sectional view of a third embodiment of the battery structure having a cap holder according to the present invention, and fig. 22 is a sectional exploded view of the third embodiment of the battery structure having a cap holder according to the present invention. The first structure of the stent in this embodiment is explained:
the bracket 512 provided by the present embodiment includes a third extension 5121 and a third support 5122; the third extension 5121 is arranged at one end of the interior of the housing 51 far away from the opening, the long side of the third extension 5121 is axially parallel to the housing 51, one side of the third extension 5121 is connected with the inner wall of the housing 51, and the other side of the third extension 5121 is contacted with and insulated from the outer wall of the battery cell 52; the third supporting portion 5122 is connected to an end of the third extending portion 5121 close to the opening of the housing 51, and the third supporting portion 5122 is located at an end of the bracket 512 close to the opening of the housing 51 and extends along the inside of the housing 51 for supporting the battery cap 53.
In this embodiment, the support 512 is a cylindrical structure and is sleeved on the battery cell 52. This structure facilitates assembly of the battery product and improves stability of the holder 512 inside the battery.
In this embodiment, an included angle between the third supporting portion 5122 and the third extending portion 5121 is between 85 ° and 95 °. Preferably, in this embodiment, an included angle between the third supporting portion 5122 and the third extending portion 5121 of the bracket 512 is a right angle.
In this embodiment, the bracket 512 further includes a third reinforcing portion 5123 for reinforcing the rigidity of the bracket 512, one end of the third reinforcing portion 5123 is connected to one end of the third supporting portion 5122, the other end of the third reinforcing portion 5123 is connected to the third extending portion 5121, the thickness of the third reinforcing portion 5123 is greater than that of the third supporting portion 5122, and the thickness of the third reinforcing portion 5123 is greater than that of the third extending portion 5121.
Compared with the first embodiment and the second embodiment, the battery structure of the embodiment has the advantages that the reusable explosion-proof structure is arranged at the bottom end of the shell 51, so that the use safety of the battery is improved; when the battery is decompressed, the battery does not need to reserve extra space in the height direction; and the explosion-proof structure of the safety valve does not occupy the space of the finished product of the cap, so that the thickness of the finished product of the cap is small, and the production and assembly of the battery are facilitated.
Referring to fig. 23 and 24, fig. 23 is a schematic cross-sectional view of a second cap structure in a third embodiment of a battery structure having a cap holder according to the present invention, and fig. 24 is an enlarged view of the structure at D of fig. 23. A second structure of the stent in this embodiment is explained: the bracket 612 provided by this embodiment includes a fourth extension portion 6121 and a fourth support portion 6122; the fourth extension 6121 is arranged at one end of the inner part of the shell 51 close to the opening, the long side of the fourth extension 6121 is axially parallel to the shell 51, one side of the fourth extension 6121 is connected with the inner wall of the shell 51, and the other side of the fourth extension 6121 is in contact with and insulated from the outer wall of the cap 53; the fourth support portion 6122 is located at the other end of the bracket, and the fourth support portion 6122 and the fourth extension portion 6121 are connected at one end of the opening away from the casing 51 and extend along the inside of the casing 51 to support the battery cap 53.
In this embodiment, the holder 612 has a cylindrical structure. Effectively and improving the stability of the bracket 612 inside the battery. In this embodiment, an included angle between the fourth supporting portion 6122 and the fourth extending portion 6121 ranges from 85 ° to 95 °. Preferably, in this embodiment, an included angle between the fourth supporting portion 6122 and the fourth extending portion 6121 of the bracket 612 is a right angle.
In this embodiment, the bracket 612 further includes a fourth reinforcing portion 6123 for reinforcing the rigidity of the bracket 612, one end of the fourth reinforcing portion 6123 is connected to one end of the fourth supporting portion 6122, the other end of the fourth reinforcing portion 6123 is connected to the fourth extending portion 6121, the thickness of the fourth reinforcing portion 6123 is greater than the thickness of the fourth supporting portion 6122, and the thickness of the fourth reinforcing portion 6123 is greater than the thickness of the fourth extending portion 6121.
Compared with the first embodiment and the second embodiment, the battery structure of the embodiment has the advantages that the reusable explosion-proof structure is arranged at the bottom end of the shell 51, so that the use safety of the battery is improved; the explosion-proof structure does not occupy the space of the finished product of the cap, so that the thickness of the finished product of the cap is small, and the production and assembly of the battery are facilitated. In addition, the bracket 512 for supporting the cap 53 is arranged in the casing 51 in the embodiment, the bracket 512 is sleeved on the periphery of the cap 51, and the battery core with a larger diameter can be accommodated in the casing 31, so that the battery capacity is increased.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (10)
1. A battery structure with a cap holder, comprising:
the shell is used for mounting components and is of a hollow cylindrical structure with one open end;
the battery cell is arranged in the shell and used for providing electric energy; and
the cap is arranged at an opening at one end of the shell and is connected with the battery cell, and the cap is used for sealing the opening of the shell and leading out an electrode of the battery cell;
the shell is internally provided with a support, and the support is used for supporting the cap and spacing the cap from one end of the battery core.
2. The battery structure with cap holder according to claim 1, characterized in that the holder comprises:
an extension part disposed at one end of the bracket, and one side of the extension part is connected with the housing, and,
and the supporting part is arranged at the other end of the bracket, extends along the inside of the shell and is used for supporting the cover cap.
3. The battery structure with cap holder according to claim 2, characterized in that: the support further comprises a reinforcing part, the reinforcing part is arranged at the support position and used for reinforcing the rigidity of the support, one end of the reinforcing part is connected with one end of the supporting part, the other end of the reinforcing part is connected with the extending part, the thickness of the reinforcing part is larger than that of the extending part, and the thickness of the reinforcing part is larger than that of the supporting part.
4. The battery structure with a cap support of claim 1, wherein the cell includes a positive tab connected to the cap and a negative tab connected to the case;
the shell comprises a bottom plate opposite to the cap, a first insulating sheet is arranged between the battery cell and the bottom plate,
one end of the negative pole lug is connected with the negative pole piece of the battery core, the other end of the negative pole lug penetrates through the first insulating piece and extends along the bottom plate,
and the negative pole lug is welded with the bottom plate of the shell from outside to inside.
5. The battery structure with a cap holder according to claim 4, characterized in that the bottom end of the bottom plate is provided with a first groove;
the bottom plate is provided with a first air release channel which communicates the first groove with the interior of the shell and is used for discharging high-pressure gas generated by the battery cell;
and a safety valve cover plate is arranged in the first groove and is connected with the metal connecting piece through a hot melting material.
6. The battery structure with a cap holder according to claim 1, wherein the cap comprises:
the metal connecting piece is arranged at one end of the opening of the battery shell and is connected with a positive electrode lug of the battery core; and the number of the first and second groups,
the insulating plastic part is arranged around the metal connecting part and used for insulating and protecting the metal connecting part and the inner wall of the battery shell;
the center of the metal connecting piece is provided with a connecting portion, and the connecting portion is connected with one end of a positive electrode lug of the battery cell.
7. The battery structure with cap holder of claim 6, wherein: and an explosion-proof structure is arranged on one side of the connecting part, which is far away from the battery core, and is used for discharging high-pressure gas generated by the battery core.
8. The battery structure with cap holder of claim 7, wherein: the anti-explosion structure comprises an anti-explosion groove, and the anti-explosion groove is arranged at the connecting part of the metal connecting piece from outside to inside.
9. The battery structure with cap holder of claim 8, wherein: the section of the anti-explosion groove is in an annular, U-shaped or linear structure,
the length of the cross section of the opening of the explosion-proof groove is greater than or equal to the length of the cross section of the bottom end of the explosion-proof groove.
10. The battery structure with cap holder according to claim 2, characterized in that: the height to diameter ratio of the battery is less than or equal to 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399024.4A CN111564577B (en) | 2020-05-12 | 2020-05-12 | Battery structure with cap support |
| PCT/CN2021/093454 WO2021228165A1 (en) | 2020-05-12 | 2021-05-12 | Battery structure having cover cap support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399024.4A CN111564577B (en) | 2020-05-12 | 2020-05-12 | Battery structure with cap support |
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| CN111564577A true CN111564577A (en) | 2020-08-21 |
| CN111564577B CN111564577B (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010399024.4A Active CN111564577B (en) | 2020-05-12 | 2020-05-12 | Battery structure with cap support |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111564577B (en) |
| WO (1) | WO2021228165A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112467263A (en) * | 2020-09-29 | 2021-03-09 | 昆山兴能能源科技有限公司 | Plastic battery and production method thereof |
| WO2021228165A1 (en) * | 2020-05-12 | 2021-11-18 | 路华置富电子(深圳)有限公司 | Battery structure having cover cap support |
| CN113937395A (en) * | 2021-09-30 | 2022-01-14 | 新余赣锋电子有限公司 | Button cell |
| CN115020935A (en) * | 2022-07-04 | 2022-09-06 | 朱经纬 | Button cell, preparation method thereof and cell system |
| WO2023272501A1 (en) * | 2021-06-29 | 2023-01-05 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric device, and method and device for manufacturing battery cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114824598B (en) * | 2022-04-18 | 2024-04-09 | 江苏正力新能电池技术有限公司 | Cylindrical battery and cap assembly thereof |
| CN115621633B (en) * | 2022-09-28 | 2024-01-23 | 厦门海辰储能科技股份有限公司 | End cover, battery pack and electric equipment |
| CN116073043B (en) * | 2023-03-07 | 2023-06-20 | 星恒电源股份有限公司 | Positive electrode cover plate, battery core and assembly method |
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| CN111564577B (en) * | 2020-05-12 | 2022-08-12 | 路华置富电子(深圳)有限公司 | Battery structure with cap support |
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| CN204230332U (en) * | 2014-12-08 | 2015-03-25 | 王国柱 | A kind of battery case air releasing device |
| CN206441771U (en) * | 2017-01-23 | 2017-08-25 | 珠海微矩实业有限公司 | Button cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021228165A1 (en) * | 2020-05-12 | 2021-11-18 | 路华置富电子(深圳)有限公司 | Battery structure having cover cap support |
| CN112467263A (en) * | 2020-09-29 | 2021-03-09 | 昆山兴能能源科技有限公司 | Plastic battery and production method thereof |
| CN112467263B (en) * | 2020-09-29 | 2023-03-31 | 昆山兴能能源科技有限公司 | Plastic battery and production method thereof |
| WO2023272501A1 (en) * | 2021-06-29 | 2023-01-05 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electric device, and method and device for manufacturing battery cell |
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| CN115020935A (en) * | 2022-07-04 | 2022-09-06 | 朱经纬 | Button cell, preparation method thereof and cell system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111564577B (en) | 2022-08-12 |
| WO2021228165A1 (en) | 2021-11-18 |
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