CN218849624U - Battery and electronic device - Google Patents
Battery and electronic device Download PDFInfo
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- CN218849624U CN218849624U CN202222971047.5U CN202222971047U CN218849624U CN 218849624 U CN218849624 U CN 218849624U CN 202222971047 U CN202222971047 U CN 202222971047U CN 218849624 U CN218849624 U CN 218849624U
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- tab
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a battery and an electronic device; wherein the battery comprises an inner shell and an outer shell; the inner shell comprises a first end cover and a first side wall connected with the first end cover, the outer shell comprises a second end cover and a second side wall connected with the second end cover, the inner shell and the outer shell are provided with open ends, and the outer shell is covered at the open end of the inner shell; the outer shell lid is established under the state of inner shell, follow the axial direction of casing, the second lateral wall with first lateral wall overlaps, just the second lateral wall still has the extension, the extension to first end cover is buckled with week side formation of first end cover bordures the structure. The utility model discloses a technical problem that will solve realizes the good sealed effect of battery.
Description
Technical Field
The utility model relates to a battery structure technical field, more specifically, the utility model relates to a battery and electronic equipment.
Background
The battery case is generally provided in multiple pieces, and includes, for example, a case body and a cover body covering the case body, so as to facilitate assembly of the battery. In order to ensure the normal use of the battery, the case and the lid are sealed and insulated by means of a flexible insulating member. However, the sealing and protection effects of this sealing method are poor. If the battery case has a problem of poor sealing performance, electrical components inside the battery pack are easily damaged, and there is a high possibility of electric leakage, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery and electronic equipment's new technical scheme for solve the not good problem of current battery case's leakproofness.
According to an aspect of the present invention, a battery is provided. The shell of the battery comprises an inner shell and an outer shell;
the inner shell comprises a first end cover and a first side wall connected with the first end cover, the outer shell comprises a second end cover and a second side wall connected with the second end cover, the inner shell and the outer shell are provided with open ends, and the outer shell is covered at the open end of the inner shell;
the outer shell lid is established under the state of inner shell, follow the axial direction of casing, the second lateral wall with first lateral wall overlaps, just the second lateral wall still has the extension, the extension to first end cover is buckled with week side formation of first end cover bordures the structure.
Optionally, the extending portion is arc-shaped and is buckled on the periphery of the first end cover;
the battery further comprises an insulating sleeve, the insulating sleeve comprises a main body portion and an extension portion connected with the main body portion, the main body portion is located between the first side wall and the second side wall, and the extension portion is located between the extension portion and the peripheral side of the first end cover.
Optionally, the outer shell and the inner shell enclose to form a containing cavity;
the battery also comprises a battery core and a lug;
the battery cell is positioned in the accommodating cavity, is of a spiral winding structure, a cavity is formed in the middle of the spiral winding structure, and comprises a starting end close to the cavity and two end faces opposite to the first end cover and the second end cover respectively;
the tab is welded with the portion, close to the initial end, of the battery cell, the tab further comprises a connecting portion led out of the battery cell, the connecting portion is circular, the connecting portion is attached to the end face, the connecting portion covers the cavity, and the connecting portion is connected with the shell.
Optionally, the middle parts of the first end cap and the second end cap are both arc-shaped structures protruding towards the battery core direction.
Optionally, the connecting portion of the tab is attached to the arc-shaped surface structure.
Optionally, the battery cell includes a positive plate, a negative plate and a separation film, and the separation film is located between the positive plate and the negative plate;
the tab comprises a positive tab and a negative tab, the positive tab is connected with the positive plate, the negative tab is connected with the negative plate, and the negative tab is closer to the starting end relative to the positive tab.
Optionally, an insulating gasket is disposed between the connection portion of the positive tab and the end face, an edge of the insulating gasket protrudes beyond an edge of the connection portion of the positive tab, and an area of the insulating gasket is smaller than an area of the end face.
Optionally, when winding is performed, the negative electrode tab protrudes from the positive electrode tab along the winding direction, the negative electrode tab is connected to a portion of the negative electrode tab protruding from the positive electrode tab, and the connecting portion of the negative electrode tab covers the cavity and the portion of the negative electrode tab protruding from the positive electrode tab on the end face.
Optionally, the tab includes a handle portion and the connecting portion, the handle portion is connected to the battery cell, the connecting portion is circular, the handle portion is strip-shaped, and the diameter of the connecting portion is greater than the width of the handle portion.
According to another aspect of the present invention, an electronic device is provided. The electronic device comprises a battery according to the first aspect
The utility model has the advantages of a technological effect lies in, for the battery provides a good encapsulation casing of leakproofness, establish under the state of inner shell at the outer shell lid, along the axial direction of casing, the first lateral wall of inner shell not only can be wrapped up completely to the second lateral wall of shell, and the second lateral wall of shell still extends certain length parcel in the first end lid week side of inner shell, make in, form good seal structure between the shell, so can be fine the inside electrical components of protection casing, also can avoid taking place dangers such as electrolyte leakage.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a cross-sectional view of a battery provided by an embodiment of the present invention;
fig. 2 is a schematic diagram of a battery structure provided by an embodiment of the present invention;
fig. 3 is a second schematic view of a battery structure provided by an embodiment of the present invention;
fig. 4 is a third schematic view of a battery structure according to an embodiment of the present invention;
fig. 5 is one of the schematic structural diagrams of the tab provided by the embodiment of the present invention;
fig. 6 is a second schematic structural diagram of a tab according to an embodiment of the present invention.
Description of reference numerals:
101. a first end cap; 102. a second end cap; 103. a cambered surface structure; 104. a first side wall; 105. a second side wall; 1051. an extension portion; 106. an insulating sleeve; 1061. a main body portion; 1062. an extension; 201. a positive tab; 202. a negative tab; 203. a connecting portion; 204. a handle; 205. welding spots; 300. an electric core; 301. a positive plate; 301a, a positive current collector; 301b, a positive electrode active material; 302. a negative plate; 302a, a negative electrode current collector; 302b, a negative electrode active material; 303. a first end face; 304. a second end face; 305. an insulating spacer; 306. an isolation film; 307. a cavity.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
According to an embodiment of the present invention, there is provided a battery, as shown in fig. 1 and 2, the battery includes a housing, the housing includes an inner shell and an outer shell; the inner shell comprises a first end cover 101 and a first side wall 104 connected with the first end cover 101, the outer shell comprises a second end cover 102 and a second side wall 105 connected with the second end cover 102, the inner shell and the outer shell both have open ends, and the outer shell cover is arranged at the open end of the inner shell; the outer case cover is provided in the state of the inner case, along the axial direction of the case, the second side wall 105 overlaps with the first side wall 104, and the second side wall 105 further has an extension 1051, and the extension 1051 bends toward the first end cover 101 to form a covered edge structure on the peripheral side of the first end cover 101.
The utility model discloses the scheme provides a new encapsulation shell structure for the battery, has splendid sealing performance. Particularly, the outer casing lid is established under the state of inner shell, along the axial direction of the whole casing that forms, the second lateral wall 105 of outer shell not only can wrap up completely the first lateral wall 104 of inner shell, just the second lateral wall 105 of outer shell still extends to wrap up after certain length the week side of the first end cover 101 of inner shell, this design makes and can form good seal structure between the inside, the outer shell of inside electrical components of protection casing that so just can realize, also can avoid taking place dangers such as electrolyte leakage.
In some examples of the present invention, with continued reference to fig. 1, the extension 1051 is arc-shaped and is fastened to the periphery of the first end cap 101; the battery further includes an insulating sleeve 106, the insulating sleeve 106 includes a main body portion 1061 and an extension portion 1062 connected to the main body portion 1061, the main body portion 1061 is located between the first side wall 104 and the second side wall 105, and the extension portion 1062 is located between the extension portion 1051 and the peripheral side of the first end cap 101.
The second side wall 105 of the outer shell is beneficial to buckling a section of extended part on the peripheral side of the first end cover 101 of the inner shell, so that the sealing performance of the formed shell is further improved, and meanwhile, the process is easy to realize and the processing difficulty is lower.
The utility model discloses a battery has still set up insulating sleeve 106 between inner shell and shell, seals and insulates with the help of the insulating part, can improve the security of battery.
In some examples of the present invention, referring to fig. 1 to 4, the outer shell and the inner shell enclose a receiving cavity; the battery also comprises a battery cell 300 and tabs; the battery cell 300 is located in the accommodating cavity, the battery cell 300 is in a spiral winding structure, a cavity 307 is formed in the middle of the spiral winding structure, the battery cell 300 includes a starting end close to the cavity 307, and the battery cell 300 further includes two end faces opposite to the first end cap 101 and the second end cap 102, respectively; the tab is welded with the portion, close to the starting end, of the battery cell 300, and further comprises a connecting portion 203 led out of the battery cell 300, the connecting portion 203 is circular, the connecting portion 203 is attached to the end face, the connecting portion 203 covers the cavity 307, and the connecting portion 203 is connected with the shell.
Specifically, referring to fig. 1 and fig. 2, the battery provided by the embodiment of the present invention is a cylindrical battery, such as a cylindrical battery or a square battery. Under the condition that the height of the battery is smaller than the diameter, the battery is a button battery. The battery may be, but is not limited to, a lithium ion battery, a nickel cadmium battery, a lead acid battery, and the like. The battery cell 300 includes a plurality of electrode tabs and a separator 306, for example, a positive electrode tab 301 and a negative electrode tab 302 are respectively located on both sides of the separator 306. The plurality of electrode sheets are spirally wound to form the battery cell 300.
The positive electrode sheet 301 includes a positive electrode collector 301a and a positive electrode active material 301b attached to at least one surface of the positive electrode collector 301a. The negative electrode tab 302 includes a negative electrode collector 302a and a negative electrode active material 302b attached to at least one surface of the negative electrode collector 302a. The positive electrode collector 301a is an aluminum foil. The negative electrode collector 302a is a copper foil. The positive electrode active material 301b is lithium cobaltate, lithium iron phosphate, a ternary material, or the like. The negative electrode active material 302b is graphite, silicon, or the like. The positive electrode sheet 301, the separator 306, and the negative electrode sheet 302 are wound to form the battery cell 300. The cell 300 has a first end face 303 and a second end face 304.
The shell is made of stainless steel, copper alloy, aluminum alloy and the like. For example, the housing includes an outer shell and an inner shell that snap together. The outer shell with the inner shell all includes the end cover and the lateral wall of being connected with the end cover. For example, the inner shell includes a first sidewall 104 and a first end cap 101. The housing includes a second sidewall 105 and a second end cap 102. The first end cap 101 is disposed opposite to the first end surface 303 of the battery cell 300. The second end cap 102 is disposed opposite the second end face 304 of the cell 300. The outer shell and the inner shell are both in a cylindrical structure with one end open. The outer and inner shells are sealingly joined together in an open-ended opposing relationship to form a pocket therebetween. The first sidewall 104 and the second sidewall 105 completely overlap. An insulating sleeve 106 is provided between the two side walls. The battery cell 300 is disposed in the accommodating chamber.
In this example, as shown in fig. 5 and 6, the tab may include a connection portion 203 for electrical connection with the end cap. For example, the tab further comprises a shank 204 connected to the connection portion 203. The handle 204 and the connecting portion 203 are integrally formed, for example, by stamping, laser cutting, or the like. The shank 204 is welded to the electrode sheet, for example, by laser welding, ultrasonic welding, resistance welding, or the like. The tab is of a sheet structure. The tab may be made of, but not limited to, copper, aluminum, etc. For example, the positive tab 201 is aluminum foil. The negative electrode tab 202 is a copper foil. The handle portion 204 of the positive tab 201 is welded to the positive current collector 301a. The handle 204 of the negative tab 202 is welded to the negative current collector 302a.
In the embodiment of the present invention, since the connecting portion 203 of the tab is circular and is attached to the end surface of the battery cell 300, when charging and discharging, the battery cell 300 has current, and the connecting portion 203 also has current. Since the connection portion 203 is circular, the magnetic field formed by the connection portion 203 is uniformly distributed, thereby preventing the magnetic field of the electric elements around the battery from being changed due to the non-uniform distribution of the magnetic field. In this way, the electromagnetic interference of the battery to surrounding electrical components is significantly reduced.
In some examples of the present invention, as described above, the battery cell 300 includes the positive electrode tab 301, the negative electrode tab 302, and the separation film 303. Referring to fig. 2 to 4, the separator 303 is located between the positive electrode tab 301 and the negative electrode tab 302; the tabs comprise a positive tab 201 and a negative tab 202, the positive tab 201 is connected with the positive plate 301, the negative tab 202 is connected with the negative plate 302, and the negative tab 202 is closer to the starting end relative to the positive tab 201.
As shown in fig. 5, the end of the negative electrode sheet 302 forms a region not covered with the negative electrode active material 302b. This region exposes the negative electrode collector 302a. The shank 204 of the negative tab 202 is welded to the negative current collector 302a using laser welding. The connection portion 203 of the positive tab 201 is located on the side of the negative electrode tab 302.
As shown in fig. 6, a region not covered with the positive electrode active material 301b is formed inside the end portion of the positive electrode sheet 301. This region exposes the positive electrode collector 301a. The shank 204 of the positive tab 201 is welded to the positive current collector 301a by laser welding. The connection portion 203 of the positive tab 201 is located on the side of the positive tab 301.
When winding, the end of the negative electrode tab 302 protrudes beyond the end of the positive electrode tab 301, and the positive electrode tab 201 and the negative electrode tab 202 are disposed in a staggered manner.
In this example, the end of the negative electrode sheet 302 is not flush with the end of the positive electrode sheet 301 when winding. The end of the negative electrode tab 302 protrudes beyond the end of the positive electrode tab 301. The negative electrode sheet 302 can completely cover the positive electrode sheet 301, and the area of the negative electrode sheet 302 is larger than that of the positive electrode sheet 301, so that the positive electrode can be sufficiently charged and discharged. The closer the negative electrode tab 202 is to the beginning with respect to the positive electrode tab 201, this enables the electrode active material of the positive electrode sheet 301 to sufficiently perform charge and discharge reactions.
In one example of the present invention, the connection portion 203 of the negative electrode tab 202 and the connection portion 203 of the positive electrode tab 201 are both disposed concentrically with the end surface on which they are disposed. The diameter of the connection portion 203 of the negative electrode tab 202 is smaller than the diameter of the connection portion 203 of the positive electrode tab 201.
In the above example, as shown in fig. 2, since the negative electrode tab 202 is closer to the starting end, the distance from the position where the negative electrode tab 202 is drawn out to the center of the spirally wound structure is smaller. The lead-out position of the positive tab 201 is further distant from the center of the spirally wound structure. Therefore, connection portion 203 of positive tab 201 needs to cover a larger area than negative tab 202 to ensure coverage of cavity 307 and be disposed concentrically with the end face. The connection portions 203 of the negative electrode tabs 202 have a smaller area, which can save material; and on the other hand, reduces the space in the accommodating cavity occupied by the negative electrode tab 202.
It should be noted that the connection portion 203 of the positive tab 201 and the connection portion 203 of the negative tab 202 are both concentrically arranged with the end surface of the battery cell 300, so that the magnetic field formed by the battery cell 300 and the tabs is more uniform, and the magnetic field of the electrical element around the battery is prevented from changing.
In other examples, a stem is disposed within the cavity 307. In the spiral winding, the positive electrode sheet 301, the negative electrode sheet 302, and the separator 306 are wound around the stem. This makes the structure of the battery cell 300 more regular.
In some examples of the present invention, referring to fig. 2 and 4, an insulating gasket 305 is disposed between the connection portion of the positive tab 201 and the end surface, an edge of the insulating gasket 305 protrudes from an edge of the connection portion 203 of the positive tab 201, and an area of the insulating gasket 305 is smaller than an area of the end surface.
In this example, since the negative electrode tab 202 is closer to the starting end than the positive electrode tab 201, a part of the negative electrode tab 302 is present in the region of the end surface covered by the connection portion 203 of the positive electrode tab 201. With this configuration, the insulating spacer 305 is provided between the connection portion 203 of the positive electrode sheet 301 and the end face, thereby effectively preventing short circuit.
In addition, the area of the insulating gasket 305 is larger than that of the connecting part 203 of the positive tab 201, and the insulating gasket 305 is arranged concentrically with the connecting part 203 of the positive tab 201, so that the occurrence of short circuit can be more effectively avoided. The area of insulating spacer 305 is smaller than the area of the end surface where the device is located, which can effectively reduce the space occupied by insulating spacer 305 in the accommodating cavity.
Of course, the insulating pad 305 and the connection portion 203 of the positive tab 201 may be arranged eccentrically, as long as it is ensured that the edge of the insulating pad 305 protrudes beyond the edge of the connection portion 203 of the positive tab 201.
In some examples of the present invention, when winding, the negative electrode sheet 302 protrudes from the positive electrode sheet 301 along the winding direction, the negative electrode tab 202 protrudes from the negative electrode sheet 302 and the positive electrode sheet 301 is connected to the end surface, the connecting portion of the negative electrode tab 202 covers the cavity 307 and the negative electrode sheet 302 protrudes from the positive electrode sheet 301.
In this example, as shown in fig. 2 and 3, the end of the negative electrode tab 302 protrudes beyond the end of the positive electrode tab 301. The handle 204 of the negative electrode tab 202 is connected to a portion protruding from the positive electrode tab 301. Therefore, when the connection portion 203 of the negative electrode tab 302 is bonded to the first end surface 303, the region that needs to be covered by the connection portion 203 of the negative electrode tab 302 does not have the positive electrode tab 301, that is, the positive electrode tab 301 and the negative electrode tab 302 are not short-circuited. Therefore, the insulating spacer 305 does not need to be provided between the connection portion 203 of the negative electrode tab 302 and the first end surface 303, which can save the space of the housing cavity.
In some examples of the present invention, the middle portions of the first end cap 101 and the second end cap 102 are both arc-shaped structures 103 protruding toward the battery cell 300.
Wherein, the connecting part 203 of the tab is attached to the cambered surface structure 103.
As shown in fig. 1 and 2, the middle portions of the first end cap 101 and the second end cap 102 protrude inward to form an arc-shaped structure 103. In this way, the cambered surface structure 103 can more effectively press the connecting portion 203 of the tab, so that the distance between the end cover and the corresponding tab is smaller. The contact area of the two is larger, the resistance is smaller, and therefore the heating phenomenon of the battery is reduced.
Optionally, the connecting portion 203 is welded to the end cap. For example, laser welding, resistance welding, etc.
When laser welding or resistance welding is performed from the outer side of the shell, the arc-shaped structure 103 can effectively avoid the insufficient welding phenomenon. For example, resistance welding is performed using a double needle horn. The double-needle welding head is applied to the arc surface structure 103 from the outer side of the shell, the arc surface structure 103 is further extruded, after the double-needle welding head is conducted, two welding spots 205 are formed on the arc surface structure 103 and the connecting portion 203 of the corresponding lug, and due to the compression effect of the arc surface structure 103, the welding efficiency of resistance welding of the double-needle welding head is higher, and the false welding phenomenon between the end cover and the lug is effectively avoided.
Of course, in other examples, welding such as projection welding may be used.
In some examples of the present invention, as mentioned above, the tab includes the handle portion 204 and the connecting portion 203, the handle portion 204 is connected to the battery cell 300, the connecting portion 203 is circular, the handle portion 204 is strip-shaped, and the diameter of the connecting portion 203 is greater than the width of the handle portion 204. In this way, the connection portion 203 has a large area, so that electrical connection of the connection portion 203 and the end cap becomes easy, and the resistance therebetween is small. When welding, the welding operation space is large.
According to another embodiment of the present invention, an electronic device is provided. The electronic equipment comprises the battery.
The electronic device may be, but is not limited to, a computer, a cell phone, a television, a radio, a watch, a headset, an intercom, a VR device, an AR device, etc.
The electronic device includes a device main body and a battery. The battery is disposed within the device body.
The electronic equipment has the characteristic of high signal-to-noise ratio.
In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.
Although some specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. The battery is characterized by comprising a shell, wherein the shell comprises an inner shell and an outer shell;
the inner shell comprises a first end cover and a first side wall connected with the first end cover, the outer shell comprises a second end cover and a second side wall connected with the second end cover, the inner shell and the outer shell are provided with open ends, and the outer shell is covered at the open end of the inner shell;
the outer shell lid is established under the state of inner shell, follow the axial direction of casing, the second lateral wall with first lateral wall overlaps, just the second lateral wall still has the extension, the extension to first end cover is buckled with week side formation of first end cover bordures the structure.
2. The battery of claim 1, wherein the extension is arc-shaped and is snapped around the periphery of the first end cap;
the battery still includes insulating sleeve, insulating sleeve include the main part and with the extension that the main part is connected, the main part is located first lateral wall with between the second lateral wall, the extension is located the extension with between the week side of first end cover.
3. The battery of claim 1, wherein the outer housing and the inner housing enclose a receiving cavity;
the battery also comprises a battery cell and a tab;
the battery cell is positioned in the accommodating cavity, is of a spiral winding structure, a cavity is formed in the middle of the spiral winding structure, the battery cell comprises a starting end close to the cavity, and the battery cell further comprises two end faces opposite to the first end cover and the second end cover respectively;
the tab is welded with the portion, close to the starting end, of the battery cell, the tab further comprises a connecting portion led out of the battery cell, the connecting portion is circular, the connecting portion is attached to the end face, the connecting portion covers the cavity, and the connecting portion is connected with the shell.
4. The battery of claim 3, wherein the middle portions of the first end cap and the second end cap are both arc-shaped structures protruding towards the cell direction.
5. The battery of claim 4 wherein the tab connection portion abuts the cambered surface structure.
6. The battery of claim 3, wherein the cell comprises a positive plate, a negative plate and a separator, and the separator is located between the positive plate and the negative plate;
the tab comprises a positive tab and a negative tab, the positive tab is connected with the positive plate, the negative tab is connected with the negative plate, and the negative tab is closer to the starting end relative to the positive tab.
7. The battery according to claim 6, wherein an insulating gasket is provided between the connection portion of the positive tab and the end face, an edge of the insulating gasket protrudes beyond an edge of the connection portion of the positive tab, and an area of the insulating gasket is smaller than an area of the end face.
8. The battery according to claim 7, wherein, during winding, the negative electrode tab protrudes from the positive electrode tab in a winding direction, the negative electrode tab is connected to a portion of the negative electrode tab protruding from the positive electrode tab, and the connection portion of the negative electrode tab covers the cavity and the portion of the negative electrode tab protruding from the positive electrode tab on the end surface.
9. The battery of any one of claims 3-8, wherein the tab comprises a handle portion and the connecting portion, the handle portion is connected to the battery cell, the connecting portion is circular, the handle portion is strip-shaped, and a diameter of the connecting portion is greater than a width of the handle portion.
10. An electronic device, characterized in that it comprises a battery according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222971047.5U CN218849624U (en) | 2022-11-04 | 2022-11-04 | Battery and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222971047.5U CN218849624U (en) | 2022-11-04 | 2022-11-04 | Battery and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218849624U true CN218849624U (en) | 2023-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222971047.5U Active CN218849624U (en) | 2022-11-04 | 2022-11-04 | Battery and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218849624U (en) |
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2022
- 2022-11-04 CN CN202222971047.5U patent/CN218849624U/en active Active
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