WO2022116576A1 - 电池及其制备工艺 - Google Patents
电池及其制备工艺 Download PDFInfo
- Publication number
- WO2022116576A1 WO2022116576A1 PCT/CN2021/109886 CN2021109886W WO2022116576A1 WO 2022116576 A1 WO2022116576 A1 WO 2022116576A1 CN 2021109886 W CN2021109886 W CN 2021109886W WO 2022116576 A1 WO2022116576 A1 WO 2022116576A1
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- WO
- WIPO (PCT)
- Prior art keywords
- casing
- metal sheet
- hollow hole
- sheet
- insulating
- Prior art date
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- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 177
- 239000002184 metal Substances 0.000 claims abstract description 177
- 238000007789 sealing Methods 0.000 claims abstract description 81
- 238000005452 bending Methods 0.000 claims description 64
- 230000002093 peripheral effect Effects 0.000 claims description 41
- 238000004519 manufacturing process Methods 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 24
- 230000000694 effects Effects 0.000 claims description 12
- 238000002788 crimping Methods 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 9
- 239000002985 plastic film Substances 0.000 claims description 5
- 229920006255 plastic film Polymers 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000009413 insulation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000004080 punching Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Images
Classifications
-
- 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
- H01M50/109—Primary casings; Jackets or wrappings characterised by their shape or physical structure of button or coin shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/59—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
Definitions
- the invention relates to a battery and a preparation process thereof.
- a button battery also known as a button battery, includes a positive steel shell, a negative steel shell and a sealing ring, and the positive steel shell and the negative steel shell are assembled directly by the sealing ring to realize the sealed connection of the button battery.
- the positive steel shell and the negative steel shell of the traditional button battery are assembled directly by the sealing ring, so that the gap between the steel shell and the sealing ring is large, which is prone to leakage, which makes the button battery safe to use.
- the positive steel shell and the negative steel shell are both hard shells, the precision of the matching gap between the two is relatively high, so the fault tolerance rate of the button battery is poor.
- a preparation process of a battery comprising: forming a first casing, the first casing is provided with a first hollow hole; forming a first insulating sheet, the first insulating sheet is formed with the first hollow a second hollow hole corresponding to the hole; providing a first metal sheet; fixing the first insulating sheet on one side of the first metal sheet, so that the first metal sheet is partially exposed to the second hollow hole, and The peripheral edge of the first insulating sheet protrudes from the peripheral edge of the first metal sheet; the side of the first insulating sheet facing away from the first metal sheet is fixed to the inner wall of the first shell, so that the first insulating sheet is Two hollow holes are correspondingly communicated with the first hollow holes to form a first shell assembly; a second shell assembly is provided; the second shell of the second shell assembly is sealed by one of a heat sealing operation and a heat sealing operation The body is connected to the first housing.
- a battery is prepared by using the battery preparation process described in any of the above embodiments.
- FIG. 1 is a schematic flow diagram of a preparation process of a battery in one embodiment
- Fig. 2 is a schematic structural diagram of a battery prepared by using the preparation process of the battery shown in Fig. 1
- Fig. 3 is a schematic diagram of another perspective of the battery shown in Fig. 2
- FIG. 4 is a cross-sectional view of the battery shown in FIG. 2
- FIG. 5 is a partial schematic view of a first casing assembly of the battery shown in FIG. 4
- 7 is a schematic structural diagram of a battery according to another embodiment prepared by the preparation process of the battery shown in FIG. 1
- FIG. 8 is a schematic flowchart of step S109 of the preparation process of the battery shown in FIG. 1
- Figure 10 is a schematic flow chart of step S109 of the preparation process for preparing the battery shown in Figure 9
- Figure 11 is a schematic diagram of the battery shown in Figure 9. Cutaway view.
- the manufacturing process of the battery 10 includes some or all of the following steps:
- a first casing 100 is formed, and the first casing 100 is provided with a first hollow hole 110 .
- the first casing 100 is formed by molding, so that the first casing 100 is formed with at least one folded casing structure.
- the first casing 100 defines a first hollow hole 110 .
- the step of forming the first casing 100 is specifically: using a stamping process to form the first casing 100 .
- a first insulating sheet 200 is formed, and the first insulating sheet 200 is provided with a second hollow hole 210 corresponding to the first hollow hole 110 .
- a first insulating sheet 200 is formed, and the first insulating sheet 200 is provided with a second hollow hole 210 corresponding to the first hollow hole 110 . Further, the first hollow hole 110 and the second hollow hole 210 are correspondingly opened, and the center line of the first hollow hole 110 and the center line of the second hollow hole 210 are overlapped. The first hollow hole 110 and the second hollow hole 210 are better exposed to the outside.
- the first insulating sheet 200 is fixed on one side of the first metal sheet 300, so that the first metal sheet 300 is partially exposed to the second hollow hole 210, and the first insulating sheet 200 is The peripheral edge protrudes from the peripheral edge of the first metal sheet 300 .
- the first insulating sheet 200 is fixed on one side of the first metal sheet 300 so that the first metal sheet 300 is partially exposed to the second hollow hole 210 . And the periphery of the first insulating sheet 200 protrudes from the periphery of the first metal sheet 300 .
- the first insulating sheet 200 may be polypropylene film or other films.
- the step of fixing the first insulating sheet 200 on one side of the first metal sheet 300 is specifically as follows: adhering the first insulating sheet 200 to one side of the first metal sheet 300 to make the first insulating sheet 200 An insulating sheet 200 is firmly connected to the first metal sheet 300 .
- first insulating sheet 200 it is not limited to adhering the first insulating sheet 200 to one side of the first metal sheet 300 , but also crimping the first insulating sheet 200 to the first metal sheet 300 .
- One side of the metal sheet 300 it is not limited to adhering the first insulating sheet 200 to one side of the first metal sheet 300 , but also crimping the first insulating sheet 200 to the first metal sheet 300 .
- One side of the metal sheet 300 is not limited to adhering the first insulating sheet 200 to one side of the first metal sheet 300 , but also crimping the first insulating sheet 200 to the first metal sheet 300 .
- One side of the metal sheet 300 One side of the metal sheet 300 .
- the side of the first insulating sheet 200 facing away from the first metal sheet 300 is fixed to the inner wall of the first casing 100 , so that the second hollow hole 210 is connected to the first hollow hole 110 are connected correspondingly to form the first housing assembly 10a. Since the peripheral edge of the first insulating sheet 200 protrudes from the peripheral edge of the first metal sheet 300, the first metal sheet 300 passes through the first insulating sheet 200 and is connected to the first shell. The body 100 is spaced apart, thereby reliably insulating the first metal sheet 300 from the first casing 100 .
- the first case component 10a is a positive electrode component
- the second case component 10b is a negative electrode component
- the second casing 400 of the second casing assembly 10b is connected to the first casing 100 by one of the heat sealing operation and the heat sealing operation, that is, the heat sealing operation or the heat sealing operation
- the second casing 400 of the second casing assembly 10b is connected to the first casing 100 , that is, the second casing 400 of the second casing assembly 10b is connected to the first casing 100 through a heat sealing process or a heat sealing process .
- the first insulating sheet 200 is fixed on one side of the first metal sheet 300, and the side of the first insulating sheet 200 facing away from the first metal sheet 300 is fixed on the inner wall of the first casing 100, the first insulating sheet 200 is fixed on the inner wall of the first casing 100.
- the metal sheet 300 is fixedly connected to the inner wall of the first casing 100 through the first insulating sheet 200 to avoid direct electrical contact between the first metal sheet 300 and the first casing 100, and because the second hollow hole 210 and the first hollow hole 110 Correspondingly connected, the first metal sheet 300 is exposed to the outside through the second hollow hole 210 and the first hollow hole 110 .
- the mechanical sealing connection between the first casing 100 and the second casing 400 through the mechanical sealing of the sealant is prevented from easily leaking liquid Therefore, the first casing 100 and the second casing 400 are reliably connected, and the first casing 100 and the second casing 400 are fixedly connected by heat sealing operation or heat sealing operation, avoiding the first casing.
- the problem that the precision of the fitting gap between the 100 and the second casing 400 is relatively high, which greatly improves the fault tolerance rate of the button battery 10 .
- the second housing 400 of the second housing assembly 10b is connected to the second housing assembly 10b through a heat sealing operation.
- the first casing 100 the second casing 400 is connected to the first casing 100 through a heat-sealing process, so that the second casing 400 and the first casing 100 are tightly connected.
- both the first case 100 and the second case 400 can be made of aluminum plastic film, so that the first case 100 and the second case 400 have better bending and punching performance, and at the same time, the battery 10 is The structure is lighter.
- the step S109 of providing the second housing assembly 10b includes:
- the second casing 400 is provided, and the second casing 400 is provided with a accommodating cavity 410;
- the steps of crimping the insulating ring 500 to the outer wall of the second housing 400 and covering the insulating ring 500 on the opening periphery of the accommodating cavity 410 are as follows: 500 is thermocompressed and connected to the outer wall of the second casing 400, and part of the insulating ring 500 is wrapped around the opening periphery of the accommodating cavity 410, so that the insulating ring 500 and the outer wall of the second casing 400 can be reliably positioned connection, and at the same time, the insulating ring 500 can be reliably wrapped around the opening periphery of the accommodating cavity 410 .
- the insulating ring 500 is bent adjacent to the opening periphery of the accommodating cavity 410 and extends around the opening periphery of the accommodating cavity 410 , so that the insulating ring 500 can reliably cover the opening periphery of the accommodating cavity 410 . Further, the bent inner wall of the insulating ring 500 is glued with the opening periphery of the accommodating cavity 410 , so that the insulating ring 500 tightly wraps the opening perimeter of the accommodating cavity 410 .
- the bent inner wall of the insulating ring 500 is thermally connected to the opening periphery of the accommodating cavity 410 , that is, the bent inner wall of the insulating ring 500 is connected to the opening perimeter of the accommodating cavity 410 through a heat sealing process.
- the step of connecting the second casing 400 of the second casing assembly 10b to the first casing 100 through a heat-sealing operation includes: first, sleeve the first casing 100 on the first casing 100 .
- the first metal sheet 300 faces into the accommodating cavity 410; then, the second shell 400 is heat-sealed with the first shell 100 through the insulating ring 500, as shown in the figure
- the second casing 400 and the first casing 100 together form the battery cavity 10 c , and at the same time, the second casing 400 and the first casing 100 are tightly connected to avoid the leakage of the battery 10 .
- the diameter of the first casing 100 is larger than the diameter of the second casing 400 .
- the side of the first insulating sheet 200 adjacent to the first metal sheet 300 also abuts against the insulating ring 500 corresponding to the opening periphery of the accommodating cavity 410 . position, so that the part of the opening periphery of the accommodating cavity 410 supports and abuts the first insulating sheet 200, and at the same time, the first insulating sheet 200 is pressed between the opening perimeter of the accommodating cavity 410 and the inner wall of the first housing 100 to avoid
- the first casing 100 may be wrinkled during the assembly process of the first casing 100 and the second casing 400 , and at the same time, it has a better insulation and sealing effect.
- the first insulating sheet 200 is pressed between the first casing 100 and the opening periphery of the accommodating cavity 410 to form a first sealing structure.
- the sealing structure enables the encapsulated battery 10 to have better sealing performance and better avoid the problem of liquid leakage of the battery 10 .
- the first metal sheet 300 is located in the receiving cavity 410 , and the insulating ring 500 is disposed around the first metal sheet 300 .
- the first metal sheet 300 is disposed adjacent to the peripheral edge of the second casing 400 , so that the insulating ring 500 separates the first metal sheet 300 from the second casing 400 , thereby achieving a better insulating effect, and at the same time
- the volume of the assembled battery 10 is reduced, thereby making the structure of the battery 10 more compact.
- the first metal sheet 300 is in abutment with the insulating ring 500 , so that the assembly of the first casing 100 and the second casing 400 is more compact, while reducing the number of A metal sheet 300 is subjected to external vibration, which has a better buffering effect, so that the first metal sheet 300 is reliably connected to the first casing 100 .
- the insulating ring 500 partially protrudes between the second casing 400 and the first casing 100 , so that the insulating ring 500 is partially exposed to the In addition to the first shell 100, after the first shell 100 is thermally connected to the second shell 400 through the insulating ring 500, the inner periphery of the first shell 100 is also separated from the second shell 400 through the insulating ring 500. open, so as to provide better insulation between the first casing 100 and the second casing 400 .
- the peripheral edge of the second casing 400 is connected to the peripheral edge of the first casing 100 through a heat sealing process.
- the inner periphery of the second case 400 is connected to the outer periphery of the first case 100 through a heat sealing process.
- the diameter of the first casing 100 is not limited to be larger than the diameter of the second casing 400 , but can also be smaller than or equal to the diameter of the second casing 400 . In one of the embodiments, the diameter of the first casing 100 is smaller than the diameter of the second casing 400 .
- the step of providing the second housing assembly 10b includes: providing the second housing 400, and the second housing 400 is provided with an accommodating cavity 410; crimping the insulating ring 500 on the first housing 400; The inner wall of the second casing 400 , that is, the insulating ring 500 is disposed on the inner wall of the second casing 400 , and part of the insulating ring 500 is wrapped around the opening periphery of the accommodating cavity 410 to form the second casing assembly 10 b .
- the step of connecting the second casing 400 of the second casing assembly 10b to the first casing 100 through a heat sealing operation includes: sleeving the second casing 400 to the first casing body 100 , so that the first metal sheet 300 faces into the accommodating cavity 410 ; the second shell 400 is heat-sealed with the first shell 100 through the insulating ring 500 to make the second shell 400 It is closely connected with the first casing 100 to further avoid the leakage of the battery 10 .
- the outer peripheral edge of the second casing 400 is connected to the inner peripheral edge of the first casing 100 through a heat sealing process.
- the diameter of the first casing 100 may also be equal to the diameter of the second casing 400 .
- the inner periphery of the second case 400 is connected to the inner periphery of the first case 100 through a heat sealing process.
- the inner peripheral edge of the second casing 400 is directly connected to the inner peripheral edge of the first casing 100 through a heat sealing process.
- the end of the first casing 100 adjacent to the second casing 400 forms the first bending edge 102
- the end of the second casing 400 adjacent to the end of the first casing 100 forms the second bending edge 402
- the first bending edge 102 and the second bending edge 402 are disposed opposite to each other, and the insulating ring 500 is located between the first bending edge 102 and the second bending edge 402, so that the first shell 100 is thermally connected to the insulating ring 500.
- the second casing 400 .
- both the first case 100 and the second case 400 can be made of aluminum plastic film, so that the first case 100 and the second case 400 have better bending and punching performance, and at the same time, the battery 10 is The structure is lighter.
- the step S109 of providing the second housing assembly 10b includes:
- the second casing 400 is provided, and the second casing 400 is provided with a receiving cavity 410 and a third hollow hole 420 .
- the second casing 400 is formed by a stamping process, so that the second casing 400 is formed with at least one folded casing structure.
- a second insulating sheet 700 is formed, and the second insulating sheet 700 is provided with a fourth hollow hole 710 corresponding to the third hollow hole 420 .
- the third hollow hole 420 and the fourth hollow hole 710 are correspondingly opened, and the center line of the third hollow hole 420 and the center line of the fourth hollow hole 710 are overlapped, so that after subsequent assembly, the second metal sheet 600 passes through the third hollow hole 420.
- the third hollow hole 420 and the fourth hollow hole 710 are better exposed to the outside.
- the second insulating sheet 700 may be polypropylene film or other films.
- the step of fixing the second insulating sheet 700 on one side of the second metal sheet 600 is specifically as follows: adhering the second insulating sheet 700 to one side of the second metal sheet 600, so that the first The two insulating sheets 700 are firmly connected to the second metal sheet 600 . It can be understood that in other embodiments, it is not limited to adhering the second insulating sheet 700 to one side of the second metal sheet 600 , but also crimping the second insulating sheet 700 to the second metal sheet 600 . One side of the metal sheet 600 .
- the side of the second insulating sheet 700 facing away from the second metal sheet 600 is fixed to the inner wall of the second casing 400 so that the fourth hollow hole 710 and the third hollow hole 420 are connected correspondingly to form the second housing assembly 10b. Since the peripheral edge of the second insulating sheet 700 protrudes from the peripheral edge of the second metal sheet 600, the second metal sheet 600 passes through the second insulating sheet 700 and is connected to the second housing. The body 400 is spaced apart, thereby reliably insulating the second metal sheet 600 from the second casing 400 .
- the step of connecting the second casing 400 of the second casing assembly 10b to the first casing 100 through a heat sealing operation includes: connecting the second casing 400 to the first casing 100 is heat-sealed, so that the second casing 400 is tightly connected with the first casing 100 .
- the manufacturing process further includes: positioning the second casing 400 and the first casing 100 relative to each other, so that the heat sealing accuracy of the second casing 400 and the first casing 100 is high.
- the end of the first casing 100 adjacent to the second casing 400 is formed with a first bending edge 102
- the end of the second casing 400 adjacent to the first casing 100 is formed with a The second bending edge 402
- the first bending edge 102 abuts against the second bending edge 402 .
- the step of positioning the second casing 400 and the first casing 100 relative to each other is specifically: abutting and positioning the first bending edge 102 and the second bending edge 402 so that the first shell 100 and the second shell 400 are positioned relative to each other.
- the difficulty of positioning is relatively low, and at the same time, the first casing 100 and the second casing 400 can be reliably heat-sealed.
- the shape of the first casing 100 is the same as that of the second casing 400 .
- the first bending edge 102 and the second bending edge 402 are abutted and heat-sealed, so that the battery cavity 10c is formed between the first case 100 and the second case 400 together, and the first case 100 and the second case 400 Tight connection, thereby ensuring good sealing performance of the battery cavity 10c.
- the diameter of the first bending edge 102 is equal to the diameter of the second bending edge 402 , so that the first bending edge 102 and the second bending edge 402 are heat-sealed and connected with an equal area. , which is beneficial to the quick positioning and heat sealing of the first bending edge 102 and the second bending edge 402 .
- the diameter of the first bending edge 102 and the diameter of the second bending edge 402 may not be equal.
- the diameter of the first bending edge 102 is larger than the diameter of the second bending edge 402 , that is, when the first bending edge 102 and the second bending edge 402 abut and locate, the edge of the first bending edge 102 protrudes
- the edge of the second bending edge 402 that is, the edge of the first bending edge 102 and the edge of the second bending edge 402 are not aligned and abutted.
- the preparation process may further It includes: protruding the first bending edge 102 from the edge of the second bending edge 402 and performing a secondary bending process to form a bending covering part, so that the bending covering part presses the edge of the second bending edge 402 , so that the contact area between the first bending edge 102 and the second bending edge 402 is larger, so that the surface area for heat-sealing connection between the second shell 400 and the first shell 100 is larger, thereby making the first shell 400 larger.
- the second casing 400 is more firmly connected with the first casing 100 .
- the bending direction of the bending cladding portion is opposite to the bending direction of the first bending edge 102 .
- the present application further provides a battery 10 , which is prepared by using the manufacturing process of the battery 10 described in any of the above embodiments.
- the battery 10 includes a first case assembly 10a and a second case assembly 10b.
- the first casing assembly 10a includes a first casing 100, a first insulating sheet 200 and a first metal sheet 300.
- the first casing 100 is provided with a first hollow hole 110 and a first opening 120 that communicate with each other.
- the first insulating sheet 200 is located in the first opening 120 , one side of the first insulating sheet 200 is connected to the first casing 100 , and the first insulating sheet 200 is provided with the first hollow hole 110 .
- the connected second hollow hole 210, the first metal sheet 300 is located in the first opening 120, the first metal sheet 300 is connected to the other side of the first insulating sheet 200, the first metal sheet 300 is partially exposed to the second hollow hole 210, and the periphery of the first insulating sheet 200 protrudes from the periphery of the first metal sheet 300, so that the first metal sheet 300 passes through the first insulating sheet 200 and the first The casing 100 is connected, and at the same time, the first metal sheet 300 is reliably insulated from the first casing 100 .
- the second housing assembly 10b includes a second housing 400, and the second housing 400 is connected to the first housing 100 by heat sealing or heat sealing, so that the second housing 400 and the first housing 100 are tightly connected connected, so that a battery cavity is formed between the first casing and the second casing.
- the first metal sheet 300 passes through the first insulating sheet 200 is fixedly connected to the inner wall of the first casing 100 to avoid direct electrical contact between the first metal sheet 300 and the first casing 100, and because the second hollow hole 210 is connected to the first hollow hole 110 correspondingly, the first metal sheet 300 is exposed to the outside through the second hollow hole 210 and the first hollow hole 110 .
- the second shell is heat-sealed or fixed to the first shell, the problem of easy liquid leakage between the first shell and the second shell is avoided through the mechanical seal connection between the first shell and the second shell.
- the two casings are reliably connected, and at the same time, the problem of high precision requirement of the matching gap between the first casing and the second casing is avoided, and the fault tolerance rate of the button battery is greatly improved.
- the second shell 400 is fixedly connected to the first shell 100 by heat sealing, so that the second shell 400 and the first shell 100 together enclose The battery cavity 10c is formed, and the second casing 400 is tightly connected with the first casing 100 at the same time.
- the second casing 400 is connected to the first casing 100 through a heat sealing process.
- both the first case 100 and the second case 400 can be made of aluminum-plastic film, so that the first case 100 and the second case 400 have better bending and punching properties, and at the same time, the structure of the battery 10 is lighter .
- the second housing assembly 10b further includes an insulating ring 500 .
- the second casing 400 has a second opening 410 , the first metal sheet 300 is disposed toward the second opening 410 , the insulating ring 500 is crimped on the second casing 400 , and the insulating The ring 500 partially covers the periphery of the second opening 410 , the first casing 100 is sleeved on the second casing 400 , and the second casing 400 is heat-sealed and fixedly connected to the insulating ring 500 . In the first casing 100, the second casing 400 is tightly connected with the first casing 100.
- the insulating ring 500 partially covers the periphery of the second opening 410, the first metal sheet 300 is prevented from being in the first casing.
- the body 100 is fixedly connected to the second casing 400 , the body 100 is in contact with the periphery of the second opening 410 of the second casing 400 .
- the accommodating cavity 410 communicates with the first opening 120 through the second opening 410 .
- the side of the first insulating sheet 200 adjacent to the first metal sheet 300 also abuts against the opening periphery of the insulating ring 500 corresponding to the second opening 410 the position of the opening peripheral edge of the second opening 410 is supported and abutted against the first insulating sheet 200 , while the first insulating sheet 200 is pressed against the opening peripheral edge of the second opening 410 and the inner wall of the first housing 100 During this time, the first casing 100 is prevented from being wrinkled, and at the same time, it has a better insulation and sealing effect.
- the first insulating sheet 200 is pressed between the first casing 100 and the opening periphery of the second opening 410 to form a first sealing structure.
- the second sealing structure enables the battery 10 to have better sealing performance and better avoids the problem of liquid leakage of the battery 10 .
- the first metal sheet 300 is located in the second opening 410 , and the insulating ring 500 is disposed around the first metal sheet 300 .
- the first metal sheet 300 is disposed adjacent to the periphery of the second opening 410 of the second casing 400 , so that the first metal sheet 300 and the second casing 400 are separated and disposed by the insulating ring 500 , so as to achieve a relatively Good insulation effect, while reducing the volume of the assembled battery 10, thereby making the structure of the battery 10 more compact.
- the peripheral edge of the first metal sheet 300 is in contact with the insulating ring 500 , so that the assembly of the first casing 100 and the second casing 400 is more compact, while reducing the The vibration of the first metal sheet 300 from the outside is prevented, and a better buffering effect is achieved, so that the first metal sheet 300 is reliably connected to the first casing 100 .
- the insulating ring 500 partially protrudes between the second casing 400 and the first casing 100 , so that the insulating ring 500 is partially exposed to the
- the first casing 100 is thermally connected to the second casing 400 through the insulating ring 500, and the inner periphery of the first casing 100 is also connected to the second casing 400 through the insulating ring 500. spaced apart, so as to provide better insulation between the first casing 100 and the second casing 400 .
- the second casing 400 is not limited to be fixedly connected to the first casing 100 by heat sealing.
- the second case 400 is fixedly connected to the first case 100 by heat sealing, so that the second case 400 and the first case 100 together form the battery cavity 10c,
- the second casing 400 is tightly connected with the first casing 100 to prevent the battery 10 from leaking.
- the second casing 400 is connected to the first casing 100 through a heat sealing process, so that the second casing 400 and the first casing 100 are tightly connected.
- both the first case 100 and the second case 400 can be made of aluminum-plastic film, so that the first case 100 and the second case 400 have better bending and punching performance, and at the same time, the structure of the battery 10 is lighter .
- the second housing assembly 10 b further includes a second insulating sheet 700 and a second metal sheet 600 .
- the second casing 400 is provided with a second opening 410 and a third hollow hole 420 which are communicated with each other.
- the second insulating sheet 700 is connected to one side of the second metal sheet 600 , and the second insulating sheet 700 is provided with a fourth hollow hole 710 that communicates with the third hollow hole 420 .
- the second metal sheet 600 is partially exposed to the third hollow hole 420 , and the peripheral edge of the second insulating sheet 700 protrudes from the peripheral edge of the second metal sheet 600 , so that the second metal sheet 600 passes through the second metal sheet 600 .
- the insulating sheet 700 is connected to the second casing 400 to avoid direct electrical contact between the second metal sheet 600 and the second casing 400 , and to ensure reliable insulation between the second metal sheet 600 and the second casing 400 . Since the fourth hollow hole 710 is in corresponding communication with the third hollow hole 420 , the second metal sheet 600 is exposed to the outside through the fourth hollow hole 710 and the third hollow hole 420 .
- the first metal sheet 300 and the second metal sheet 600 are disposed opposite to each other, and the first metal sheet 300 is fixed to the first housing 100 through the first insulating sheet 200 , and the second metal sheet 600 passes through the second insulating sheet 700 is fixed to the second casing 400 .
- the battery 10 further includes a winding core, a positive electrode lug and a negative electrode lug, and the positive electrode lug and the negative electrode lug are respectively protruding from both ends of the winding core.
- the winding core, the positive electrode tab and the negative electrode tab are all located in the battery cavity, wherein the first metal sheet 300 is welded to the end of the positive electrode tab away from the winding core, and the second metal sheet 600 is welded to the end of the negative electrode tab away from the winding core, so that the first metal sheet The 300 is electrically connected to the positive terminal, and the second metal sheet 600 is electrically connected to the negative terminal.
- the first metal sheet 300 is exposed to the outside through the first hollow hole 110 and the second hollow hole 210 to form a positive contact portion
- the second metal sheet 600 is exposed to the outside through the third hollow hole 420 and the fourth hollow hole 710 to form a negative electrode contact portion.
- the activity of the metal material made of the second metal sheet 600 is less than the activity of the metal material made of the first metal sheet 300, so that the second metal sheet 600 is connected to the positive terminal, and the first metal sheet 300 is connected to the positive electrode. Negative ear connection.
- the peripheral edge of the first hollow hole 110 is in the first hollow hole 110 .
- a projection line of an insulating sheet 200 surrounds the periphery of the second hollow hole 210 , so that the periphery of the second hollow hole 210 of the first insulating sheet 200 protrudes and is exposed to the first hollow hole 110 , so as to prevent the first insulating sheet 200 from interacting with the first hollow hole 110 .
- the first metal sheet 300 is reliably insulated from the first casing 100 through the first insulating sheet 200 .
- the periphery of the third hollow hole 420 is on the second insulating sheet
- the projection line 700 surrounds the periphery of the fourth hollow hole 710, so that the periphery of the fourth hollow hole 710 of the second insulating sheet 700 protrudes and is exposed to the third hollow hole 420, so as to avoid the second insulating sheet 700 and the third hollow hole
- the collision of the peripheral wall of the hole 420 results in a short circuit, so that the second metal sheet 600 is reliably insulated from the second casing 400 through the second insulating sheet 700 .
- the first housing assembly 10a further includes a first reinforced insulating sheet 800, and the first reinforced insulating sheet 800 is connected to the side of the first metal sheet 300 away from the first insulating sheet 200, so The peripheral edge of the first reinforced insulating sheet 800 protrudes from the peripheral edge of the first metal sheet 300, so that the first metal sheet 300 is located between the first insulating sheet 200 and the first reinforced insulating sheet 800, and the first metal sheet is 300 can be reliably insulated from both the first casing 100 and the second casing 400, respectively.
- the first reinforced insulating sheet 800 is provided with a first through hole 810 , and a part of the first metal sheet 300 is exposed to the first through hole 810 , so that the positive electrode tab is welded to the first metal sheet 300 through the first through hole 810 . Further, the side of the first reinforced insulating sheet 800 facing away from the first metal sheet 300 is in contact with the insulating ring 500 , and under the insulating effect of the first reinforced insulating sheet 800 and the insulating ring 500 , the first metal sheet 300 is better connected to the insulating ring 500 .
- the second case 400 is insulated.
- the second housing assembly 10 b further includes a second reinforced insulating sheet 900 , and the second reinforced insulating sheet 900 is connected to the side of the second metal sheet 600 away from the second insulating sheet 700 .
- the peripheral edge of the reinforced insulating sheet 900 protrudes from the peripheral edge of the second metal sheet 600, so that the second metal sheet 600 is located between the second insulating sheet 700 and the second reinforced insulating sheet 900, and at the same time, the second metal sheet 600 and Both the first case 100 and the second case 400 can be insulated reliably.
- the second reinforced insulating sheet 900 is provided with a second through hole 910 , and the second metal sheet 600 is partially exposed to the second through hole 910 , so that the negative electrode ear is welded to the second metal sheet 600 through the second through hole 910 .
- the present invention has at least the following advantages:
- the first metal sheet 300 passes through the first metal sheet 300.
- the insulating sheet 200 is fixedly connected to the inner wall of the first casing 100 to avoid direct electrical contact between the first metal sheet 300 and the first casing 100 , and because the second hollow hole 210 is connected to the first hollow hole 110 correspondingly, the first The metal sheet 300 is exposed to the outside through the second hollow hole 210 and the first hollow hole 110;
- first casing 100 and the second casing 400 are encapsulated and connected through one of the heat sealing operation and the heat sealing operation, it is avoided that the first casing 100 and the second casing 400 are easily connected by mechanical sealing through the sealant.
- the first casing 100 and the second casing 400 are reliably connected, and the first casing 100 and the second casing 400 are fixedly connected by heat sealing or heat sealing, avoiding the first
- the precision of the fitting gap between the casing 100 and the second casing 400 is relatively high, which greatly improves the fault tolerance rate of the button battery 10 .
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Abstract
一种电池的制备工艺，包括：成型出第一壳体，所述第一壳体开设有第一镂空孔；成型出第一绝缘片，所述第一绝缘片开设有与所述第一镂空孔对应的第二镂空孔；提供第一金属片；将所述第一绝缘片固定于所述第一金属片的一面，使所述第一金属片部分裸露于所述第二镂空孔，且所述第一绝缘片的周缘凸出于所述第一金属片的周缘；将所述第一绝缘片背离所述第一金属片的一面固定于所述第一壳体内壁，使所述第二镂空孔与所述第一镂空孔对应连通，以形成第一壳体组件；提供第二壳体组件；通过热合操作与热封操作其中之一将所述第二壳体组件的第二壳体连接于所述第一壳体。
Description
本发明涉及一种电池及其制备工艺。
纽扣电池，也称扣式电池，包括正极钢壳、负极钢壳和密封圈，且正极钢壳和负极钢壳之间通过密封圈直接套合进行组装，实现纽扣电池的密封连接。然而，传统的纽扣电池的正极钢壳和负极钢壳之间通过密封圈直接套合进行组装，使钢壳与密封圈之间间隙较大，容易出现漏液的情形，使纽扣电池的使用安全性较差；此外，由于正极钢壳和负极钢壳均为硬质壳体，二者之间的配合间隙的精度要求较高，使纽扣电池的容错率较差。
发明内容
基于此，有必要提供一种使用安全性较好及容错率较高的电池及其制备工艺。
一种电池的制备工艺，包括：成型出第一壳体，所述第一壳体开设有第一镂空孔；成型出第一绝缘片，所述第一绝缘片开设有与所述第一镂空孔对应的第二镂空孔；提供第一金属片；将所述第一绝缘片固定于所述第一金属片的一面，使所述第一金属片部分裸露于所述第二镂空孔，且所述第一绝缘片的周缘凸出于所述第一金属片的周缘；将所述第一绝缘片背离所述第一金属片的一面固定于所述第一壳体内壁，使所述第二镂空孔与所述第一镂空孔对应连通，以形成第一壳体组件；提供第二壳体组件；通过热合操作与热封操作其中之一将所述第二壳体组件的第二壳体连接于所述第一壳体。
一种电池，采用上述任一实施例所述的电池的制备工艺制备得到。
本发明的一个或多个实施例的细节在下面的附图和描述中提出。本发明的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他实施例的附图。
图1为一实施例中电池的制备工艺的流程示意图；图2为采用图1所示电池的制备工艺制备得到的电池的结构示意图；图3为图2所示电池的另一视角的示意图；图4为图2所示电池的剖视图；图5为图4所示电池的第一壳体组件的 局部示意图；图6为采用图1所示电池的制备工艺制备得到的另一实施例的电池的结构示意图；图7为采用图1所示电池的制备工艺制备得到的又一实施例的电池的结构示意图；图8为图1所示电池的制备工艺的步骤S109的流程示意图；图9为采用图1所示电池的制备工艺制备得到的再一实施例的电池的结构示意图；图10为制备图9所示电池的制备工艺的步骤S109的流程示意图；图11为图9所示电池的剖视图。
为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的较佳实施方式。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本发明的公开内容理解的更加透彻全面。需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
如图1和图2所示，一实施例的电池10的制备工艺，包括以下步骤的部分或全部：
S101，成型出第一壳体100，所述第一壳体100开设有第一镂空孔110。
同时参见图3和图4，在本实施例中，成型出第一壳体100，使第一壳体100形成有至少一折边的壳体结构。所述第一壳体100开设有第一镂空孔110。进一步地，成型出第一壳体100的步骤具体为：采用冲压工艺成型出第一壳体100。
S103，成型出第一绝缘片200，所述第一绝缘片200开设有与所述第一镂空孔110对应的第二镂空孔210。
在本实施例中，成型出第一绝缘片200，所述第一绝缘片200开设有与所述第一镂空孔110对应的第二镂空孔210。进一步地，第一镂空孔110与第二镂空孔210对应开设，且第一镂空孔110的中心线与第二镂空孔210的中心线重合，如此在后续组装后，第一金属片300通过第一镂空孔110和第二镂空孔210更好地裸露于外。
S105，提供第一金属片300。
S107，将所述第一绝缘片200固定于所述第一金属片300的一面，使所述第一金属片300部分裸露于所述第二镂空孔210，且所述第一绝缘片200的周缘凸出于所述第一金属片300的周缘。
同时参见图5，在本实施例中，将所述第一绝缘片200固定于所述第一金属片300的一面，使所述第一金属片300部分裸露于所述第二镂空孔210，且所述第一绝缘片200的周缘凸出于所述第一金属片300的周缘。需要说明的是，第 一绝缘片200可以为聚丙烯胶片或其他胶片。进一步地，将所述第一绝缘片200固定于所述第一金属片300的一面的步骤具体为：将所述第一绝缘片200粘接于所述第一金属片300的一面，使第一绝缘片200与第一金属片300牢固连接。可以理解，在其他实施例中，不仅限于将所述第一绝缘片200粘接于所述第一金属片300的一面，还可以是将所述第一绝缘片200压接于所述第一金属片300的一面。
S109，将所述第一绝缘片200背离所述第一金属片300的一面固定于所述第一壳体100内壁，使所述第二镂空孔210与所述第一镂空孔110对应连通，以形成第一壳体组件10a。
在本实施例中，将所述第一绝缘片200背离所述第一金属片300的一面固定于所述第一壳体100内壁，使所述第二镂空孔210与所述第一镂空孔110对应连通，以形成第一壳体组件10a，由于第一绝缘片200的周缘凸出于所述第一金属片300的周缘，使第一金属片300通过第一绝缘片200与第一壳体100隔开，进而使第一金属片300与第一壳体100之间可靠地绝缘。
S111，提供第二壳体组件10b。
在本实施例中，第一壳体组件10a为正极组件，第二壳体组件10b为负极组件。
S113，通过热合操作与热封操作其中之一将所述第二壳体组件10b的第二壳体400连接于所述第一壳体100。
在本实施例中，通过热合操作与热封操作其中之一将所述第二壳体组件10b的第二壳体400连接于所述第一壳体100，即通过热合操作或热封操作将第二壳体组件10b的第二壳体400连接于第一壳体100，亦即是通过热合工艺或热封工艺将第二壳体组件10b的第二壳体400连接于第一壳体100。
上述的电池10的制备工艺，由于第一绝缘片200固定于第一金属片300的一面，且第一绝缘片200背离第一金属片300的一面固定于第一壳体100内壁，使第一金属片300通过第一绝缘片200固定连接于第一壳体100内壁，避免第一金属片300与第一壳体100之间直接电接触，又由于第二镂空孔210与第一镂空孔110对应连通，使第一金属片300通过第二镂空孔210和第一镂空孔110裸露于外。由于第一壳体100与第二壳体400通过热合操作与热封操作其中之一进行封装连接，避免了第一壳体100与第二壳体400之间通过密封胶机械密封连接容易漏液的问题，使第一壳体100与第二壳体400之间可靠连接，同时第一壳体100与第二壳体400之间通过热合操作或热封操作固定连接，避免了第一壳体100与第二壳体400之间的配合间隙的精度要求较高的问题，大大提高了纽扣电池10的容错率。
如图4所示，为使第二壳体400与第一壳体100紧密连接，在其中一个实施例中，通过热合操作将所述第二壳体组件10b的第二壳体400连接于所述第一壳体100，即通过热合工艺将第二壳体400连接于第一壳体100，使第二壳体400与第一壳体100紧密连接。在本实施例中，第一壳体100和第二壳体400均可以为铝塑膜，使第一壳体100和第二壳体400具有较好地弯折冲压性能，同时使电池10的结构较轻便。
如图8所示，在其中一个实施例中，提供第二壳体组件10b的步骤S109包括：
S109A，提供所述第二壳体400，所述第二壳体400开设有容纳腔410；
S109B，将绝缘环500压接于所述第二壳体400外壁，并使所述绝缘环500的部分包覆于所述容纳腔410的开口周缘，形成所述第二壳体组件10b。在本实施例中，将绝缘环500压接于所述第二壳体400外壁，并使所述绝缘环500的部分包覆于所述容纳腔410的开口周缘的步骤具体为：将绝缘环500热压连接于所述第二壳体400外壁，并使所述绝缘环500的部分包覆于所述容纳腔410的开口周缘，使绝缘环500与第二壳体400的外壁可靠地定位连接，同时使绝缘环500可靠地包覆于容纳腔410的开口周缘。进一步地，绝缘环500邻近容纳腔410的开口周缘处弯折，并沿容纳腔410的开口周缘环绕一周延伸，使绝缘环500可靠地包覆于容纳腔410的开口周缘。进一步地，绝缘环500的弯折内壁与容纳腔410的开口周缘胶接，使绝缘环500紧密包覆于容纳腔410的开口周缘。或者，绝缘环500的弯折内壁与容纳腔410的开口周缘热合连接，即绝缘环500的弯折内壁通过热合工艺连接与容纳腔410的开口周缘。
进一步地，通过热合操作将所述第二壳体组件10b的第二壳体400连接于所述第一壳体100的步骤包括：首先，将所述第一壳体100套接于所述第二壳体400，使所述第一金属片300朝向所述容纳腔410内；然后，将所述第二壳体400通过所述绝缘环500与所述第一壳体100进行热合，如图4所示，使第二壳体400与第一壳体100共同围成电池腔10c，同时使第二壳体400与第一壳体100紧密连接，避免电池10漏液的情形。在本实施例中，第一壳体100的直径大于第二壳体400的直径。
如图6所示，在其中一个实施例中，所述第一绝缘片200邻近所述第一金属片300的一面还抵接于所述绝缘环500对应于所述容纳腔410的开口周缘的部位，使容纳腔410的开口周缘的部位支撑并抵接于第一绝缘片200，同时使第一绝缘片200压紧于容纳腔410的开口周缘与第一壳体100的内壁之间，避免第一壳体100在第一壳体100与第二壳体400组装过程中出现褶皱的情形，同时起到较好的绝缘密封作用。第一绝缘片200压紧于第一壳体100与容纳腔410的开口周缘之间起到第一密封结构，第一壳体100与第二壳体400之间通过绝缘环500热合形成第二密封结构，使封装后的电池10具有更好地密封性能，更好地避免电池10漏液的问题。
如图6所示，在其中一个实施例中，所述第一金属片300位于所述容纳腔410内，且所述绝缘环500环绕所述第一金属片300设置。在本实施例中，第一金属片300邻近第二壳体400的周缘处设置，使绝缘环500将第一金属片300与第二壳体400隔开，起到较好的绝缘效果，同时减小了组装后电池10的体积，进而使电池10的结构更加紧凑。
如图7所示，在其中一个实施例中，所述第一金属片300与所述绝缘环500抵接，使第一壳体100与第二壳体400的组装更加紧密，同时减少了第一金属片300所受外界的振动，起到较好的缓冲效果，进而使第一金属片300可靠地连接于第一壳体100。
如图4所示，在其中一个实施例中，所述绝缘环500部分凸出于所述第二壳体400与所述第一壳体100之间，使所述绝缘环500部分裸露于所述第一壳体100之外，进而使第一壳体100通过绝缘环500与第二壳体400热合连接后，第一壳体100的内周缘也通过绝缘环500与第二壳体400隔开，进而使第一壳体100与第二壳体400之间更好地绝缘。
具体地，通过热合工艺将第二壳体400的周缘连接于第一壳体100的周缘。进一步地，通过热合工艺将第二壳体400的内周缘连接于第一壳体100的外周缘。可以理解，在其他实施例中，第一壳体100的直径不仅限于大于第二壳体400的直径，还可以是小于或等于第二壳体400的直径。在其中一个实施例中，第一壳体100的直径小于第二壳体400的直径。在其中一个实施例中，提供第二壳体组件10b的步骤包括：提供所述第二壳体400，所述第二壳体400开设有容纳腔410；将绝缘环500压接于所述第二壳体400内壁，即绝缘环500设于第二壳体400内壁，并使所述绝缘环500的部分包覆于所述容纳腔410的开口周缘，形成所述第二壳体组件10b。进一步地，通过热合操作将所述第二壳体组件10b的第二壳体400连接于所述第一壳体100的步骤包括：将所述第二壳体400套接于所述第一壳体100，使所述第一金属片300朝向所述容纳腔410内；将所述第二壳体400通过所述绝缘环500与所述第一壳体100进行热合，使第二壳体400与第一壳体100紧密连接，进一步地避免电池10漏液的情形。在本实施例中，通过热合工艺将第二壳体400的外周缘连接于第一壳体100的内周缘。
当然，第一壳体100的直径还可以是等于第二壳体400的直径。在其他实施例中，通过热合工艺将第二壳体400的内周缘连接于第一壳体100的内周缘。例如，通过热合工艺将第二壳体400的内周缘正对连接于第一壳体100的内周缘。在本实施例中，第一壳体100邻近第二壳体400的端部形成第一弯折边102，第二壳体400邻近第一壳体100的端部形成第二弯折边402，第一弯折边102与第二弯折边402正对设置，绝缘环500位于第一弯折边102与第二弯折边402之间，使第一壳体100通过绝缘环500热合连接于第二壳体400。
可以理解，在其他实施例中，不仅限于通过热合操作将所述第二壳体组件10b的第二壳体400连接于所述第一壳体100。在另外一个实施例中，通过热封操作将所述第二壳体组件10b的第二壳体400连接于所述第一壳体100，即通过热封工艺将第二壳体400连接于第一壳体100，使第二壳体400与第一壳体100紧密连接。在本实施例中，第一壳体100和第二壳体400均可以为铝塑膜，使第一壳体100和第二壳体400具有较好地弯折冲压性能，同时使电池10的结构较轻便。
如图10所示，在其中一个实施例中，提供第二壳体组件10b的步骤S109包括：
S109C，提供所述第二壳体400，所述第二壳体400开设有容纳腔410和第三镂空孔420。
在本实施例中，通过冲压工艺成型出第二壳体400，使第二壳体400形成有至少一折边的壳体结构。
S109D，成型出第二绝缘片700，所述第二绝缘片700开设有与所述第三镂空孔420对应的第四镂空孔710。
进一步地，第三镂空孔420与第四镂空孔710对应开设，且第三镂空孔420的中心线与第四镂空孔710的中心线重合，如此在后续组装后，第二金属片600通过第三镂空孔420和第四镂空孔710更好地裸露于外。
S109E，提供第二金属片600，所述第二金属片600的金属活泼性小于所述第一金属片300的金属活泼性。
S109F，将所述第二绝缘片700固定于所述第二金属片600的一面，使所述第二金属片600部分裸露于所述第三镂空孔420，且所述第二绝缘片700的周缘凸出于所述第二金属片600的周缘。
需要说明的是，第二绝缘片700可以为聚丙烯胶片或其他胶片。进一步地，将所述第二绝缘片700固定于所述第二金属片600的一面的步骤具体为：将所述第二绝缘片700粘接于所述第二金属片600的一面，使第二绝缘片700与第二金属片600牢固连接。可以理解，在其他实施例中，不仅限于将所述第二绝缘片700粘接于所述第二金属片600的一面，还可以是将所述第二绝缘片700压接于所述第二金属片600的一面。
S109I，将所述第二绝缘片700背离所述第二金属片600的一面固定于所述第二壳体400内壁，使所述第四镂空孔710与所述第三镂空孔420对应连通，以形成所述第二壳体组件10b。
在本实施例中，将所述第二绝缘片700背离所述第二金属片600的一面固定于所述第二壳体400内壁，使所述第四镂空孔710与所述第三镂空孔420对应连通，以形成第二壳体组件10b，由于第二绝缘片700的周缘凸出于所述第二金属片600的周缘，使第二金属片600通过第二绝缘片700与第二壳体400隔开，进而使第二金属片600与第二壳体400之间可靠地绝缘。
进一步地，通过热封操作将所述第二壳体组件10b的第二壳体400连接于所述第一壳体100的步骤包括：将所述第二壳体400与所述第一壳体100进行热封，使第二壳体400与第一壳体100紧密连接。
为使第二壳体400与第一壳体100进行热封的精度较高，进一步地，将所述第二壳体400与所述第一壳体100进行热封的步骤之前，以及在提供第二壳体组件10b的步骤之后，制备工艺还包括：将第二壳体400与第一壳体100相对定位，使第二壳体400与第一壳体100进行热封的精度较高。
如图11所示，进一步地，第一壳体100邻近第二壳体400的端部形成有第一弯折边102，所述第二壳体400邻近第一壳体100的端部形成有第二弯折边402，第一弯折边102与第二弯折边402抵接。将第二壳体400与第一壳体100相对定位的步骤具体为：将第一弯折边102与第二弯折边402抵接定位，使第一壳体100与第二壳体400的定位难度较低，同时使第一壳体100与第二壳体400可靠地热封。在本实施例中，第一壳体100的形状与第二壳体400的形状相同。第一弯折边102和第二弯折边402抵接热封，使第一壳体100与第二壳体400之间共同形成电池腔10c，使第一壳体100与第二壳体400紧密连接，进而确保电池腔10c具有较好的密封性能。
如图11所示，在本实施例中，第一弯折边102的直径与第二弯折边402的直径相等，使第一弯折边102与第二弯 折边402等面积热封连接，有利于第一弯折边102与第二弯折边402快速定位热封。
可以理解，在其他实施例中，第一弯折边102的直径与第二弯折边402的直径还可以不相等。例如，第一弯折边102的直径大于第二弯折边402的直径，即在第一弯折边102与第二弯折边402抵接定位时，第一弯折边102的边缘凸出于第二弯折边402的边缘，亦即是第一弯折边102的边缘与第二弯折边402的边缘并未对齐抵接。
进一步地，在将第二壳体400与第一壳体100相对定位的步骤之后，以及在将所述第二壳体400与所述第一壳体100进行热封的步骤之前，制备工艺还包括：将第一弯折边102凸出于第二弯折边402的边缘进行二次弯折处理，形成弯折包覆部，使弯折包覆部压紧第二弯折边402的边缘，使第一弯折边102与第二弯折边402之间的接触面积较大，如此使第二壳体400与第一壳体100之间进行热封连接的表面积较大，进而使第二壳体400与第一壳体100更牢固地连接。在本实施例中，弯折包覆部的弯折方向与第一弯折边102的弯折方向相反。
如图2和图4所示，本申请还提供一种电池10，采用上述任一实施例所述的电池10的制备工艺制备得到。在其中一个实施例中，电池10包括第一壳体组件10a和第二壳体组件10b。第一壳体组件10a包括第一壳体100、第一绝缘片200和第一金属片300，所述第一壳体100开设有相连通的第一镂空孔110和第一开口120，所述第一绝缘片200位于所述第一开口120内，所述第一绝缘片200的一面连接于所述第一壳体100，所述第一绝缘片200开设有与所述第一镂空孔110连通的第二镂空孔210，所述第一金属片300位于所述第一开口120内，所述第一金属片300连接于所述第一绝缘片200的另一面，所述第一金属片300部分裸露于所述第二镂空孔210，且所述第一绝缘片200的周缘凸出于所述第一金属片300的周缘，使第一金属片300通过第一绝缘片200与第一壳体100连接，同时使第一金属片300与第一壳体100之间可靠地绝缘。第二壳体组件10b包括第二壳体400，所述第二壳体400通过热合固定或热封固定连接于所述第一壳体100，使第二壳体400与第一壳体100紧密连接，使所述第一壳体与所述第二壳体之间共同形成电池腔。
由于第一绝缘片200固定于第一金属片300的一面，且第一绝缘片200背离第一金属片300的一面固定于第一壳体100内壁，使第一金属片300通过第一绝缘片200固定连接于第一壳体100内壁，避免第一金属片300与第一壳体100之间直接电接触，又由于第二镂空孔210与第一镂空孔110对应连通，使第一金属片300通过第二镂空孔210和第一镂空孔110裸露于外。由于第二壳体热合固定或热封固定连接于第一壳体，避免了第一壳体与第二壳体之间通过密封胶机械密封连接容易漏液的问题，使第一壳体与第二壳体之间可靠连接，同时避免了第一壳体与第二壳体之间的配合间隙的精度要求较高的问题，大大提高了纽扣电池的容错率。
如图2和图4所示，在其中一个实施例中，所述第二壳体400通过热合固定连接于所述第一壳体100，使第二壳体400与第一壳体100共同围成电池腔10c，同时使第二壳体400与第一壳体100紧密连接。在本实施例中，第二壳体400通过热合工艺连接于第一壳体100。进一步地，第一壳体100和第二壳体400均可以为铝塑膜，使第一壳体100和第二 壳体400具有较好地弯折冲压性能，同时使电池10的结构较轻便。
如图4所示，在其中一个实施例中，所述第二壳体组件10b还包括绝缘环500。所述第二壳体400开设有第二开口410，所述第一金属片300朝向所述第二开口410设置，所述绝缘环500压接于所述第二壳体400，且所述绝缘环500部分包覆于所述第二开口410的周缘，所述第一壳体100套接于所述第二壳体400，所述第二壳体400通过所述绝缘环500热合固定连接于所述第一壳体100，使第二壳体400与第一壳体100紧密连接，由于绝缘环500部分包覆于所述第二开口410的周缘，避免第一金属片300在第一壳体100与第二壳体400固定连接之后与第二壳体400的第二开口410的周缘抵触。在本实施例中，容纳腔410通过第二开口410与第一开口120连通。
如图6所示，在其中一个实施例中，所述第一绝缘片200邻近所述第一金属片300的一面还抵接于所述绝缘环500对应于所述第二开口410的开口周缘的部位，使第二开口410的开口周缘的部位支撑并抵接于第一绝缘片200，同时使第一绝缘片200压紧于第二开口410的开口周缘与第一壳体100的内壁之间，避免第一壳体100出现褶皱的情形，同时起到较好的绝缘密封作用。第一绝缘片200压紧于第一壳体100与第二开口410的开口周缘之间起到第一密封结构，第一壳体100与第二壳体400之间通过绝缘环500热合形成第二密封结构，使电池10具有更好地密封性能，更好地避免电池10漏液的问题。
如图6所示，在其中一个实施例中，所述第一金属片300位于所述第二开口410内，且所述绝缘环500环绕所述第一金属片300设置。在本实施例中，第一金属片300邻近第二壳体400的第二开口410的周缘处设置，使第一金属片300与第二壳体400通过绝缘环500隔开设置，起到较好的绝缘效果，同时减小了组装后电池10的体积，进而使电池10的结构更加紧凑。
如图7所示，在其中一个实施例中，所述第一金属片300的周缘与所述绝缘环500抵接，使第一壳体100与第二壳体400的组装更加紧密，同时减少了第一金属片300所受外界的振动，起到较好的缓冲效果，进而使第一金属片300可靠地连接于第一壳体100。
如图4所示，在其中一个实施例中，所述绝缘环500部分凸出于所述第二壳体400与所述第一壳体100之间，使所述绝缘环500部分裸露于所述第一壳体100之外，进而使第一壳体100通过绝缘环500热合连接于第二壳体400，同时使第一壳体100的内周缘也通过绝缘环500与第二壳体400隔开，进而使第一壳体100与第二壳体400之间更好地绝缘。
如图11所示，可以理解，在其他实施例中，所述第二壳体400不仅限于通过热合固定连接于所述第一壳体100。在其中一个实施例中，所述第二壳体400通过热封固定连接于所述第一壳体100，使第二壳体400与第一壳体100共同围成电池腔10c，同时使第二壳体400与第一壳体100紧密连接，避免电池10漏液。在本实施例中，第二壳体400通过热封工艺连接于第一壳体100，使第二壳体400与第一壳体100紧密连。具体地，第一壳体100和第二壳体400均可以 为铝塑膜，使第一壳体100和第二壳体400具有较好地弯折冲压性能，同时使电池10的结构较轻便。
如图11所示，在其中一个实施例中，所述第二壳体组件10b还包括第二绝缘片700和第二金属片600。所述第二壳体400开设有相连通的第二开口410和第三镂空孔420。所述第二绝缘片700连接于所述第二金属片600的一面，所述第二绝缘片700开设有与所述第三镂空孔420连通的第四镂空孔710。所述第二金属片600部分裸露于所述第三镂空孔420，且所述第二绝缘片700的周缘凸出于所述第二金属片600的周缘，使第二金属片600通过第二绝缘片700与第二壳体400连接，避免第二金属片600与第二壳体400之间直接电接触，使第二金属片600与第二壳体400之间可靠地绝缘。由于第四镂空孔710与第三镂空孔420对应连通，使第二金属片600通过第四镂空孔710和第三镂空孔420裸露于外。在本实施例中，第一金属片300与第二金属片600相对设置，且第一金属片300通过第一绝缘片200固定于第一壳体100，第二金属片600通过第二绝缘片700固定于第二壳体400。
进一步地，电池10还包括卷芯、正极耳和负极耳，正极耳和负极耳分别凸设卷芯的两端。卷芯、正极耳和负极耳均位于电池腔内，其中第一金属片300焊接于正极耳远离卷芯的一端，第二金属片600焊接于负极耳远离卷芯的一端，使第一金属片300与正极耳电连接，第二金属片600与负极耳电连接。第一金属片300通过第一镂空孔110和第二镂空孔210裸露于外形成正极接触部，第二金属片600通过第三镂空孔420和第四镂空孔710裸露于外形成负极接触部。
进一步地，制成第二金属片600的金属材料的活泼性小于制成第一金属片300的金属材料的活泼性，使第二金属片600与正极耳连接，并使第一金属片300与负极耳连接。
如图4或图11所示，为避免第一绝缘片200与第一镂空孔110的周壁抵触导致短路的情形，在其中一个实施例中，所述第一镂空孔110的周缘在所述第一绝缘片200的投影线环绕所述第二镂空孔210的周缘，使第一绝缘片200的第二镂空孔210的周缘凸出并裸露于第一镂空孔110，避免第一绝缘片200与第一镂空孔110的周壁抵触导致短路的情形，进而使第一金属片300通过第一绝缘片200与第一壳体100可靠地绝缘。
如图11所示，为避免第二绝缘片700与第三镂空孔420的周壁抵触导致短路的情形，在其中一个实施例中，所述第三镂空孔420的周缘在所述第二绝缘片700的投影线环绕所述第四镂空孔710的周缘，使第二绝缘片700的第四镂空孔710的周缘凸出并裸露于第三镂空孔420，避免第二绝缘片700与第三镂空孔420的周壁抵触导致短路的情形，进而使第二金属片600通过第二绝缘片700与第二壳体400可靠地绝缘。
如图4或图11所示，进一步地，第一壳体组件10a还包括第一增强绝缘片800，第一增强绝缘片800连接于第一金属片300背离第一绝缘片200的一面，所述第一增强绝缘片800的周缘凸出于所述第一金属片300的周缘，使第一金属片300位于第一绝缘片200与第一增强绝缘片800之间，同时使第一金属片300分别与第一壳体100和第二壳体400均能够可靠地绝缘。在本实施例中，第一增强绝缘片800开设有第一通孔810，第一金属片300部分裸露于第一通孔810， 使正极耳通过第一通孔810与第一金属片300焊接。进一步地，第一增强绝缘片800背离第一金属片300的一面抵接于绝缘环500，在第一增强绝缘片800和绝缘环500的绝缘作用下，使第一金属片300更好地与第二壳体400绝缘。
如图11所示，进一步地，第二壳体组件10b还包括第二增强绝缘片900，第二增强绝缘片900连接于第二金属片600背离第二绝缘片700的一面，所述第二增强绝缘片900的周缘凸出于所述第二金属片600的周缘，使第二金属片600位于第二绝缘片700与第二增强绝缘片900之间，同时使第二金属片600分别与第一壳体100和第二壳体400均能够可靠地绝缘。在本实施例中，第二增强绝缘片900开设有第二通孔910，第二金属片600部分裸露于第二通孔910，使负极耳通过第二通孔910与第二金属片600焊接。
与现有技术相比，本发明至少具有以下优点：
1、由于第一绝缘片200固定于第一金属片300的一面，且第一绝缘片200背离第一金属片300的一面固定于第一壳体100内壁，使第一金属片300通过第一绝缘片200固定连接于第一壳体100内壁，避免第一金属片300与第一壳体100之间直接电接触，又由于第二镂空孔210与第一镂空孔110对应连通，使第一金属片300通过第二镂空孔210和第一镂空孔110裸露于外；
2、由于第一壳体100与第二壳体400通过热合操作与热封操作其中之一进行封装连接，避免了第一壳体100与第二壳体400之间通过密封胶机械密封连接容易漏液的问题，使第一壳体100与第二壳体400之间可靠连接，同时第一壳体100与第二壳体400之间通过热合操作或热封操作固定连接，避免了第一壳体100与第二壳体400之间的配合间隙的精度要求较高，大大提高了纽扣电池10的容错率。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。
Claims (43)
- 一种电池的制备工艺，包括：成型出第一壳体，所述第一壳体开设有第一镂空孔；成型出第一绝缘片，所述第一绝缘片开设有与所述第一镂空孔对应的第二镂空孔；提供第一金属片；将所述第一绝缘片固定于所述第一金属片的一面，使所述第一金属片部分裸露于所述第二镂空孔，且所述第一绝缘片的周缘凸出于所述第一金属片的周缘；将所述第一绝缘片背离所述第一金属片的一面固定于所述第一壳体内壁，使所述第二镂空孔与所述第一镂空孔对应连通，以形成第一壳体组件；提供第二壳体组件；通过热合操作与热封操作其中之一将所述第二壳体组件的第二壳体连接于所述第一壳体。
- 根据权利要求1所述的电池的制备工艺，其特征在于，通过热合操作将所述第二壳体组件的第二壳体连接于所述第一壳体。
- 根据权利要求2所述的电池的制备工艺，其特征在于，提供第二壳体组件的步骤包括：提供所述第二壳体，所述第二壳体开设有容纳腔；将绝缘环压接于所述第二壳体外壁，并使所述绝缘环的部分包覆于所述容纳腔的开口周缘，形成所述第二壳体组件；通过热合操作将所述第二壳体组件的第二壳体连接于所述第一壳体的步骤包括：将所述第一壳体套接于所述第二壳体，使所述第一金属片朝向所述容纳腔内；将所述第二壳体通过所述绝缘环与所述第一壳体进行热合。
- 根据权利要求3所述的电池的制备工艺，其特征在于，所述第一绝缘片邻近所述第一金属片的一面还抵接于所述绝缘环对应于所述容纳腔的开口周缘的部位。
- 根据权利要求3所述的电池的制备工艺，其特征在于，所述第一金属片位于所述容纳腔内，且所述绝缘环环绕所述第一金属片设置。
- 根据权利要求5所述的电池的制备工艺，其特征在于，所述第一金属片与所述绝缘环抵接。
- 根据权利要求3所述的电池的制备工艺，其特征在于，所述绝缘环部分凸出于所述第二壳体与所述第一壳体之间，使所述绝缘环部分裸露于所述第一壳体之外。
- 根据权利要求3所述的电池的制备工艺，其特征在于，将绝缘环压接于所述第二壳体外壁，并使所述绝缘环的部分包覆于所述容纳腔的开口周缘的步骤具体为：将绝缘环热压连接于所述第二壳体外壁，并使所述绝缘环的部分包覆于所述容纳腔的开口周缘。
- 根据权利要求8所述的电池的制备工艺，其特征在于，所述绝缘环邻近所述容纳腔的开口周缘处弯折，并沿所述容纳腔的开口周缘环绕一周延伸。
- 根据权利要求9所述的电池的制备工艺，其特征在于，所述绝缘环的弯折内壁与所述容纳腔的开口周缘胶接或热合连接。
- 根据权利要求2所述的电池的制备工艺，其特征在于，所述第一壳体和所述第二壳体均为铝塑膜。
- 根据权利要求2所述的电池的制备工艺，其特征在于，所述通过热合操作将所述第二壳体组件的第二壳体连接于所述第一壳体的步骤具体为：通过热合工艺将所述第二壳体的周缘连接于所述第一壳体的周缘。
- 根据权利要求12所述的电池的制备工艺，其特征在于，所述通过热合工艺将所述第二壳体的周缘连接于所述第一壳体的周缘的步骤具体为：通过热合工艺将所述第二壳体的内周缘连接于所述第一壳体的外周缘。
- 根据权利要求2所述的电池的制备工艺，其特征在于，提供第二壳体组件的步骤包括：提供所述第二壳体，所述第二壳体开设有容纳腔；将绝缘环压接于所述第二壳体外壁，并使所述绝缘环的部分包覆于所述容纳腔的开口周缘，形成所述第二壳体组件；通过热合操作将所述第二壳体组件的第二壳体连接于所述第一壳体的步骤包括：将所述第二壳体套接于所述第一壳体，使所述第一金属片朝向所述容纳腔内；将所述第二壳体通过所述绝缘环与所述第一壳体进行热合。
- 根据权利要求2所述的电池的制备工艺，其特征在于，提供第二壳体组件的步骤包括：提供所述第二壳体，所述第二壳体开设有容纳腔；将绝缘环压接于所述第二壳体外壁，并使所述绝缘环的部分包覆于所述容纳腔的开口周缘，形成所述第二壳体组件；通过热合操作将所述第二壳体组件的第二壳体连接于所述第一壳体的步骤包括：通过热合工艺将所述第二壳体的内周缘连接于所述第一壳体的内周缘。
- 根据权利要求15所述的电池的制备工艺，其特征在于，所述第一壳体邻近所述第二壳体的端部形成第一弯折边，所述第二壳体邻近所述第一壳体的端部形成第二弯折边，所述第一弯折边与所述第二弯折边正对设置，所述绝缘环位于所述第一弯折边与所述第二弯折边之间。
- 根据权利要求1所述的电池的制备工艺，其特征在于，通过热封操作将所述第二壳体组件的第二壳体连接于所 述第一壳体。
- 根据权利要求17所述的电池的制备工艺，其特征在于，提供第二壳体组件的步骤包括：提供所述第二壳体，所述第二壳体开设有容纳腔和第三镂空孔；成型出第二绝缘片，所述第二绝缘片开设有与所述第三镂空孔对应的第四镂空孔；提供第二金属片，所述第二金属片的金属活泼性小于所述第一金属片的金属活泼性；将所述第二绝缘片固定于所述第二金属片的一面，使所述第二金属片部分裸露于所述第三镂空孔，且所述第二绝缘片的周缘凸出于所述第二金属片的周缘；将所述第二绝缘片背离所述第二金属片的一面固定于所述第二壳体内壁，使所述第四镂空孔与所述第三镂空孔对应连通，以形成所述第二壳体组件；通过热封操作将所述第二壳体组件的第二壳体连接于所述第一壳体的步骤包括：将所述第二壳体与所述第一壳体进行热封。
- 根据权利要求18所述的电池的制备工艺，其特征在于，提供所述第二壳体的步骤具体为：通过冲压工艺成型出所述第二壳体。
- 根据权利要求18所述的电池的制备工艺，其特征在于，所述第三镂空孔与所述第四镂空孔对应开设，且所述第三镂空孔的中心线与所述第四镂空孔的中心线重合。
- 根据权利要求18所述的电池的制备工艺，其特征在于，所述第二绝缘片为聚丙烯胶片。
- 根据权利要求18所述的电池的制备工艺，其特征在于，将所述第二壳体与所述第一壳体进行热封的步骤之前，以及在提供所述第二壳体组件的步骤之后，所述制备工艺还包括：将所述第二壳体与所述第一壳体相对定位。
- 根据权利要求22所述的电池的制备工艺，其特征在于，所述第一壳体邻近所述第二壳体的端部形成有第一弯折边，所述第二壳体邻近所述第一壳体的端部形成有第二弯折边，所述第一弯折边与所述第二弯折边抵接；将第二壳体与第一壳体相对定位的步骤具体为：将所述第一弯折边与所述第二弯折边抵接定位。
- 根据权利要求23所述的电池的制备工艺，其特征在于，所述第一弯折边的直径与所述第二弯折边的直径相等。
- 根据权利要求23所述的电池的制备工艺，其特征在于，在将第二壳体与第一壳体相对定位的步骤之后，以及在将所述第二壳体与所述第一壳体进行热封的步骤之前，所述制备工艺还包括：将所述第一弯折边凸出于所述第二弯折边的边缘进行二次弯折处理，形成弯折包覆部。
- 根据权利要求1所述的电池的制备工艺，其特征在于，所述成型出第一壳体的步骤具体为：采用冲压工艺成型出所述第一壳体。
- 根据权利要求1所述的电池的制备工艺，其特征在于，所述第一镂空孔与所述第二镂空孔对应开设，且所述第一镂空孔的中心线与所述第二镂空孔的中心线重合。
- 根据权利要求1所述的电池的制备工艺，其特征在于，所述第一绝缘片为聚丙烯胶片。
- 根据权利要求1所述的电池的制备工艺，其特征在于，将所述第一绝缘片固定于所述第一金属片的一面的步骤具体为：将所述第一绝缘片粘接于所述第一金属片的一面。
- 根据权利要求1所述的电池的制备工艺，其特征在于，所述第一壳体组件为正极组件，所述第二壳体组件为负极组件。
- 一种电池，其特征在于，采用权利要求1至30中任一项所述的电池的制备工艺制备得到。
- 根据权利要求31所述的电池，其特征在于，所述电池包括所述第一壳体组件和所述第二壳体组件；所述第一壳体组件包括所述第一壳体、所述第一绝缘片和所述第一金属片，所述第一壳体开设有相连通的第一镂空孔和第一开口，所述第一绝缘片位于所述第一开口内，所述第一绝缘片的一面连接于所述第一壳体，所述第一绝缘片开设有与所述第一镂空孔连通的第二镂空孔，所述第一金属片位于所述第一开口内，所述第一金属片连接于所述第一绝缘片的另一面，所述第一金属片部分裸露于所述第二镂空孔，且所述第一绝缘片的周缘凸出于所述第一金属片的周缘；所述第二壳体组件包括第二壳体，所述第二壳体通过热合固定或热封固定连接于所述第一壳体，使所述第一壳体与所述第二壳体之间共同形成电池腔。
- 根据权利要求32所述的电池，其特征在于，所述第二壳体通过热合固定连接于所述第一壳体。
- 根据权利要求33所述的电池，其特征在于，所述第二壳体组件还包括绝缘环；所述第二壳体开设有第二开口，所述第一金属片朝向所述第二开口设置，所述绝缘环压接于所述第二壳体，且所述绝缘环部分包覆于所述第二开口的周缘，所述第一壳体套接于所述第二壳体，所述第二壳体通过所述绝缘环热合固定连接于所述第一壳体。
- 根据权利要求34所述的电池，其特征在于，所述第一绝缘片邻近所述第一金属片的一面还抵接于所述绝缘环对应于所述第二开口的开口周缘的部位。
- 根据权利要求34所述的电池，其特征在于，所述第一金属片位于所述第二开口内，且所述绝缘环环绕所述第一金属片设置。
- 根据权利要求36所述的电池，其特征在于，所述第一金属片的周缘与所述绝缘环抵接。
- 根据权利要求36所述的电池，其特征在于，所述绝缘环部分凸出于所述第二壳体与所述第一壳体之间。
- 根据权利要求32所述的电池，其特征在于，所述第二壳体通过热封固定连接于所述第一壳体。
- 根据权利要求32所述的电池，其特征在于，所述第二壳体组件还包括第二绝缘片和第二金属片；所述第二壳 体开设有相连通的第二开口和第三镂空孔；所述第二绝缘片连接于所述第二金属片的一面，所述第二绝缘片开设有与所述第三镂空孔连通的第四镂空孔；所述第二金属片部分裸露于所述第三镂空孔，且所述第二绝缘片的周缘凸出于所述第二金属片的周缘。
- 根据权利要求40所述的电池，其特征在于，所述电池还包括卷芯、正极耳和负极耳，所述正极耳和所述负极耳分别凸设所述卷芯的两端；所述卷芯、所述正极耳和负极耳均位于所述电池腔内，其中所述第一金属片焊接于所述正极耳远离所述卷芯的一端，所述第二金属片焊接于所述负极耳远离所述卷芯的一端；所述第一金属片通过所述第一镂空孔和所述第二镂空孔裸露于外形成正极接触部，所述第二金属片通过所述第三镂空孔和所述第四镂空孔裸露于外形成负极接触部；制成所述第二金属片的金属材料的活泼性小于制成所述第一金属片的金属材料的活泼性。
- 根据权利要求40所述的电池，其特征在于，所述第一镂空孔的周缘在所述第一绝缘片的投影线环绕所述第二镂空孔的周缘；所述第三镂空孔的周缘在所述第二绝缘片的投影线环绕所述第四镂空孔的周缘。
- 根据权利要求40所述的电池，其特征在于，所述第一壳体组件还包括第一增强绝缘片，所述第一增强绝缘片连接于所述第一金属片背离所述第一绝缘片的一面，所述第一增强绝缘片的周缘凸出于所述第一金属片的周缘；所述第二壳体组件还包括第二增强绝缘片，所述第二增强绝缘片连接于所述第二金属片背离所述第二绝缘片的一面，所述第二增强绝缘片的周缘凸出于所述第二金属片的周缘。
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201352566Y (zh) * | 2009-02-18 | 2009-11-25 | 杨明 | 一种纽扣型电池 |
| US20130330601A1 (en) * | 2011-03-25 | 2013-12-12 | Panasonic Corporation | Coin battery |
| US20180241014A1 (en) * | 2017-02-21 | 2018-08-23 | Toyota Jidosha Kabushiki Kaisha | Cylindrical battery |
| CN111554834A (zh) * | 2020-05-08 | 2020-08-18 | 惠州亿纬锂能股份有限公司 | 一种电池制作方法及电池 |
| CN111755633A (zh) * | 2020-07-10 | 2020-10-09 | 瑞声科技（南京）有限公司 | 纽扣电池 |
| CN112490545A (zh) * | 2020-12-03 | 2021-03-12 | 惠州市恒泰科技股份有限公司 | 电池、第一壳体组件及其制备工艺 |
| CN112490544A (zh) * | 2020-12-03 | 2021-03-12 | 惠州市恒泰科技股份有限公司 | 电池、第一壳体组件及其制备工艺 |
| CN112490546A (zh) * | 2020-12-03 | 2021-03-12 | 惠州市恒泰科技股份有限公司 | 电池及其制备工艺 |
| CN112490543A (zh) * | 2020-12-03 | 2021-03-12 | 惠州市恒泰科技股份有限公司 | 电池及其制备工艺 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005310577A (ja) * | 2004-04-22 | 2005-11-04 | Matsushita Electric Ind Co Ltd | コイン形二次電池 |
| CN107611312A (zh) * | 2017-10-25 | 2018-01-19 | 深圳市能锐创新科技有限公司 | 新型扣式锂离子电池 |
| CN109148742A (zh) * | 2018-08-24 | 2019-01-04 | 深圳市能锐创新科技有限公司 | 扣式锂离子电池及其壳体及扣式叠片锂离子电池 |
| CN109037502A (zh) * | 2018-08-30 | 2018-12-18 | 深圳市能锐创新科技有限公司 | 扣式锂离子电池壳体及扣式叠片锂离子电池 |
| JP7246178B2 (ja) * | 2018-12-14 | 2023-03-27 | セイコーインスツル株式会社 | 電気化学セル |
| JP7141954B2 (ja) * | 2019-01-18 | 2022-09-26 | セイコーインスツル株式会社 | 偏平型ボタン電池 |
| CN211404537U (zh) * | 2020-03-16 | 2020-09-01 | 徐洲 | 一种扣式电池壳及扣式电池 |
| CN211743195U (zh) * | 2020-03-30 | 2020-10-23 | 珠海冠宇电池股份有限公司 | 一种壳体结构和电池 |
| CN211629140U (zh) * | 2020-04-07 | 2020-10-02 | 珠海冠宇电池股份有限公司 | 一种纽扣式二次电池密封壳体 |
| CN111525174A (zh) * | 2020-04-17 | 2020-08-11 | 福建南平延平区南孚新能源科技有限公司 | 可充电纽扣电池 |
-
2020
- 2020-12-03 CN CN202011396148.3A patent/CN112490543A/zh active Pending
-
2021
- 2021-07-30 WO PCT/CN2021/109886 patent/WO2022116576A1/zh active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201352566Y (zh) * | 2009-02-18 | 2009-11-25 | 杨明 | 一种纽扣型电池 |
| US20130330601A1 (en) * | 2011-03-25 | 2013-12-12 | Panasonic Corporation | Coin battery |
| US20180241014A1 (en) * | 2017-02-21 | 2018-08-23 | Toyota Jidosha Kabushiki Kaisha | Cylindrical battery |
| CN111554834A (zh) * | 2020-05-08 | 2020-08-18 | 惠州亿纬锂能股份有限公司 | 一种电池制作方法及电池 |
| CN111755633A (zh) * | 2020-07-10 | 2020-10-09 | 瑞声科技（南京）有限公司 | 纽扣电池 |
| CN112490545A (zh) * | 2020-12-03 | 2021-03-12 | 惠州市恒泰科技股份有限公司 | 电池、第一壳体组件及其制备工艺 |
| CN112490544A (zh) * | 2020-12-03 | 2021-03-12 | 惠州市恒泰科技股份有限公司 | 电池、第一壳体组件及其制备工艺 |
| CN112490546A (zh) * | 2020-12-03 | 2021-03-12 | 惠州市恒泰科技股份有限公司 | 电池及其制备工艺 |
| CN112490543A (zh) * | 2020-12-03 | 2021-03-12 | 惠州市恒泰科技股份有限公司 | 电池及其制备工艺 |
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