CN219498008U - Special-shaped high-rate battery - Google Patents
Special-shaped high-rate battery Download PDFInfo
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- CN219498008U CN219498008U CN202320224361.9U CN202320224361U CN219498008U CN 219498008 U CN219498008 U CN 219498008U CN 202320224361 U CN202320224361 U CN 202320224361U CN 219498008 U CN219498008 U CN 219498008U
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- battery
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- shell
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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
Abstract
The application discloses a special-shaped high-rate battery, and relates to the technical field of batteries; comprises an outer shell body with an accommodating space and a battery cell arranged in the accommodating space; the battery cell comprises a battery cell main body, a protection plate, an output electrode and a connecting piece; the battery cell comprises a battery cell main body, a positive electrode lug and a negative electrode lug, wherein the positive electrode lug and the negative electrode lug are respectively led out from one end of the negative electrode lug through a connecting piece, or the negative electrode lug is led out from one end of the positive electrode lug through a connecting piece; the positive electrode tab and the negative electrode tab are positioned at the first end part of the battery cell; the protection plate is arranged at the first end part of the battery cell, the output electrode is arranged on the protection plate, a first through hole is formed at the first end part of the outer shell, and the output electrode is communicated with the outside through the first through hole; the scheme provides protection board overcharge, overdischarge, overcurrent, short circuit and other protection functions for the battery, and improves the use safety of the battery, so that the battery or the protection board is prevented from being damaged by external force.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a special-shaped high-rate battery.
Background
Because the lithium battery has excellent performances such as no memory effect, high energy density, high shape plasticity and the like, more and more charged equipment uses the lithium battery as a power supply.
A common class of lithium batteries is steel-shelled batteries, polymer batteries. The main stream of the steel shell battery in the market is mainly the fixed model size such as 18650,21700, the cost is lower, the shell strength is high, but the steel shell battery also has the defects of fixed size, single size, only cylindrical shape and the like, and many electric equipment cannot be put into the cylindrical batteries with the sizes. The polymer battery shell is aluminum-plastic film encapsulation, and the shape is changeable, can customize overall dimension according to the size demand of consumer, and the appearance can be customized into cylinder type, square type to and oval (dysmorphism), but because the polymer battery outside is aluminum-plastic film encapsulation, the material of aluminum-plastic film is nylon layer composite aluminum layer, and the universal thickness is only 113um, because its intensity is not enough, the polymer battery of traditional structure its aluminum-plastic film is by the fish tail easily, pierces through, leads to the battery to fire and burns etc. incident.
Disclosure of Invention
The present application aims to provide a special-shaped high-rate battery, which has solved at least one technical problem.
In order to solve the technical problems, the application provides a special-shaped high-rate battery, which comprises an outer shell body provided with an accommodating space and a battery cell arranged in the accommodating space;
the battery cell comprises a battery cell main body, a protection plate, an output electrode and a connecting piece; the battery cell comprises a battery cell main body, wherein two ends of the battery cell main body are respectively led out of a positive electrode lug and a negative electrode lug, the positive electrode lug is led out of one end of the negative electrode lug through a connecting piece, or the negative electrode lug is led out of one end of the positive electrode lug through the connecting piece;
the lugs of the positive electrode lug and the negative electrode lug are positioned at the first end part of the battery cell;
the protection plate is arranged at the first end part of the battery cell, the output electrode is arranged on the protection plate, a first through hole is formed at the first end part of the outer shell, and the output electrode is communicated with the outside through the first through hole;
in the implementation process, one electrode of the battery cell main body is led out through the connecting piece, so that the lug position of the positive electrode lug and the lug position of the negative electrode lug are positioned at the same end part, and further connection between the battery cell main body and other components is facilitated; the protection board and the outer shell are arranged, and the protection board is connected through the output electrode, so that components can be inherited on the protection board; the output electrode is communicated with the outside through the first through hole on the outer shell, so that a sufficient protection effect is formed on the battery core main body, and the battery combustion risk caused by the puncture and scratch of the aluminum-plastic film shell of the special-shaped battery is effectively avoided; this scheme is integrated electric core main part, protection current in the shell body, has provided the overcharge of protection shield for the battery, and the overdischarge, overcurrent, outside protect function such as short circuit, also promoted the safety in utilization of battery, avoided battery or protection shield to receive external force damage.
Preferably, a second through hole is formed on the protection plate, and the lug position of the positive electrode lug and the lug position of the negative electrode lug respectively penetrate out of the second through hole;
in the implementation process, the lug position of the positive electrode lug and the lug position of the negative electrode lug can be limited through the second through hole formed in the protection plate, so that the assembly accuracy is guaranteed, meanwhile, the assembly is more stable, the overall structural stability of the battery is improved, and the overall safety of the battery is further improved.
Preferably, the outer housing includes a bottom case, a top case, and a housing main body connected between the bottom case and the top case;
the first through hole is formed on the top shell;
in the implementation process, the outer shell is formed by assembling the top shell, the shell body and the bottom shell, and is simple in structure and convenient to assemble.
Preferably, the end face of the output electrode does not exceed the end face of the top shell;
in the implementation process, the end face of the output electrode does not exceed the end face of the top shell, and the mode ensures that the output electrode is not easy to touch to cause short circuit in manufacturing and transportation.
Preferably, threads are formed on the peripheral wall of one end of the output electrode, which is close to the protection plate, and the output electrode is in threaded connection with the protection plate;
in the implementation process, the output electrode is provided with threads and is in threaded connection with the protection plate through the threads, and the mode is simple in structure, convenient to assemble and stable in connection; in addition, the output electrode contacts are adopted for output, and compared with the traditional wire-bonding method on the electric equipment, the battery electric equipment is greatly convenient to install, and the assembly efficiency of the electric equipment is improved.
Preferably, a step surface is formed on the inner side of the first through hole, a clamping ring is formed on the periphery of one end of the output electrode, which is far away from the protection plate, in a extending mode, and the clamping ring is clamped on the step surface;
in the implementation process, the stability of the battery and the electric equipment during pressure touch output is guaranteed by the buckle design of the output electrode and the first through hole on the top cover.
Preferably, the shell body and the bottom shell are made of nickel-plated steel metal;
in the implementation process, the shell body and the bottom shell which are made of nickel plating steel metal are sleeved on the battery core body, so that the heat dissipation requirement during high-rate discharge is met, and the battery combustion risk caused by the fact that the aluminum-plastic film shell of the special-shaped battery is punctured and scratched is avoided.
Preferably, a protective layer is coated on the outer peripheral surface of the battery core main body;
the protective layer is formed by sequentially overlapping a back adhesive layer, a heat dissipation layer and a buffer filling layer;
the back adhesive layer is close to one side of the battery cell main body; the heat dissipation layer is made of graphene materials;
in the implementation process, the back adhesive layer can enable the protective layer to be adhered to the battery cell main body, so that the protective layer is effectively close to the battery; the heat dissipation layer is made of graphene materials, so that heat dissipation of the battery during high-rate discharge is facilitated, and the heat dissipation performance of the battery is improved.
Preferably, the buffer filling layer is a foam layer;
in the implementation process, the foam layer is favorable for the assembly of the battery cell wrapped and the shell, so that the battery can be prevented from shaking in the metal shell, and the stability of the battery structure is further improved.
Preferably, the connector is a flexible FPC;
in the implementation process, the PFC leading-out electrode is adopted, so that the bendable requirement is met, the insulation effect of the outer side surface of the FPC is better than that of the traditional nickel sheet connection and surface cover insulation gummed paper, the working procedures are correspondingly reduced, the working procedure of pasting the insulation gummed paper is not required to be increased independently, and the production efficiency is improved.
Compared with the prior art, the beneficial effect of this application lies in: this scheme is integrated electric core main part, protection current in the shell body, has provided the overcharge of protection shield for the battery, and the overdischarge, overcurrent, outside protect function such as short circuit, also promoted the safety in utilization of battery, avoided battery or protection shield to receive external force damage.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic overall structure of one embodiment of the present application;
FIG. 2 is a schematic diagram of an exploded structure of one embodiment of the present application;
FIG. 3 is a schematic view of a portion of one embodiment of the present application;
fig. 4 is a schematic structural diagram of a cell body according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a structure of a passivation layer according to one embodiment of the present disclosure;
FIG. 6 is a schematic view of a portion of one embodiment of the present application;
FIG. 7 is a schematic diagram of an output electrode according to an embodiment of the present application;
wherein: 10. an outer housing; 11. a top shell; 111. a first through hole; 12. a housing body; 13. a bottom case; 20. a protective plate; 21. a second through hole; 30. a cell body; 31. a connecting piece; 40. an output electrode; 41. a thread; 42. a clamping ring; 50. a protective layer; 51. a back adhesive layer; 52. a heat dissipation layer; 53. and buffering the filling layer.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In the description of the present application, it should be understood that the terms "upper," "lower," "side," "front," "rear," and the like indicate an orientation or positional relationship based on installation, and are merely for convenience of description of the present application and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone.
It should be further noted that, in the embodiments of the present application, the same reference numerals denote the same components or the same parts, and for the same parts in the embodiments of the present application, reference numerals may be given to only one of the parts or the parts in the drawings by way of example, and it should be understood that, for other same parts or parts, the reference numerals are equally applicable.
For a further understanding of the utility model, features and efficacy of this application, the following examples are set forth to illustrate, together with the drawings, the detailed description of which follows:
examples
The present embodiment provides a special-shaped high-rate battery, please refer to fig. 1-7, which includes an outer housing 10 formed with an accommodating space and a battery cell disposed in the space;
specifically, the battery cell includes a battery cell main body 30, a protection board 20, an output electrode 40 and a connecting piece 31; the two ends of the battery cell main body 30 are respectively led out of a positive electrode tab and a negative electrode tab, the positive electrode tab is led out of one end of the negative electrode tab through the connecting piece 31, or the negative electrode tab is led out of one end of the positive electrode tab through the connecting piece 31;
further, the lugs of the positive electrode lug and the negative electrode lug are positioned at the first end part of the battery cell;
specifically, the protection plate 20 is disposed at a first end of the battery cell, the output electrode 40 is disposed on the protection plate 20, a first through hole 111 is formed at the first end of the outer case 10, and the output electrode 40 is communicated with the outside through the first through hole 111;
in the above scheme, one electrode of the battery cell main body 30 is led out through the connecting piece 31, so that the lug position of the positive electrode lug and the lug position of the negative electrode lug are positioned at the same end part, and further connection between the battery cell main body and other components is facilitated; by arranging the protection plate 20 and the outer shell 10 and connecting the protection plate 20 through the output electrode 40, components can be inherited on the protection plate 20; the output electrode 40 is communicated with the outside through the first through hole 111 on the outer shell 10, so that a sufficient protection effect is formed on the battery core main body 30, and the battery combustion risk caused by the puncture and scratch of the aluminum-plastic film shell of the special-shaped battery is effectively avoided; this scheme is integrated electric core main part 30, protection current in outer shell 10, has provided protection shield 20's overcharge, overdischarge, overcurrent, short circuit etc. protect function for the battery outside, has also promoted the safety in utilization of battery, has avoided battery or protection shield 20 to receive external force damage.
Specifically, the connection member 31 is a flexible FPC;
in the scheme, the PFC extraction electrode is adopted, the bendable requirement is met, the insulation effect of the outer side face of the FPC is better than that of the traditional nickel sheet connection and surface cover insulation gummed paper, the working procedures are correspondingly reduced, the working procedure of pasting the insulation gummed paper is not required to be increased independently, and the production efficiency is improved.
Specifically, referring to fig. 3 and 6, a second through hole 21 is formed in the protection plate 20, and the ear position of the positive electrode tab and the ear position of the negative electrode tab respectively pass through the second through hole 21;
in the above scheme, the lug position of the positive electrode lug and the lug position of the negative electrode lug can be limited through the second through hole 21 formed on the protection plate 20, so that the assembly accuracy is ensured, meanwhile, the assembly is more stable, the overall structural stability of the battery is improved, and the overall safety of the battery is further improved.
Specifically, referring to fig. 2, the outer case 10 includes a bottom case 13, a top case 11, and a case body 12 connected between the bottom case 13 and the top case 11;
in some embodiments, the bottom shell 13 is connected to the main body 12 by a snap fit;
further, a first through hole 111 is formed on the top case 11;
in the above scheme, the outer shell 10 is assembled by the top shell 11, the shell main body 12 and the bottom shell 13, and has a simple structure and is convenient to assemble.
Further, a positive electrode mark and a negative electrode mark are arranged on one side of the top shell 11 at two first through holes 111;
in the scheme, the sign can avoid reverse connection of the positive electrode and the negative electrode during installation, and the reject ratio of products is reduced.
Specifically, the components are integrated on the side of the protection plate 20 facing away from the battery cell main body 30.
Specifically, the housing main body 12 and the bottom case 13 are made of nickel-plated steel metal; according to the scheme, the shell body 12 and the bottom shell 13 made of nickel-plated steel metal are sleeved outside the battery core body 30, so that the heat dissipation requirement during high-rate discharge is met, and the battery combustion risk caused by the fact that the aluminum-plastic film shell of the special-shaped battery is punctured and scratched is avoided.
In other embodiments, the housing body 12 and bottom shell 13 may also be made of galvanized steel metal.
Specifically, referring to fig. 1, the end face of the output electrode 40 does not exceed the end face of the top case 11;
in the implementation process, the end face of the output electrode 40 does not exceed the end face of the top shell 11, and in this way, the output electrode 40 is not easy to touch to cause short circuit in manufacturing and transportation.
In some embodiments, the upper surface of the output electrode 40 is submerged a height of 0.2mm above the upper surface of the top cover.
Specifically, referring to fig. 7, in some embodiments, the output electrode 40 is made of brass, and a screw 41 is formed on an outer circumferential wall of an end of the output electrode 40 near the protection plate 20, and the output electrode 40 is screw-coupled with the protection plate 20.
In the above scheme, the output electrode 40 is formed with the screw thread 41 and is connected with the screw thread 41 of the protection plate 20 through the screw thread 41, and the structure is simple, the assembly is simple and convenient, and the connection is stable; in addition, copper electrode contact output is adopted, and compared with the traditional wire bonding on electric equipment, the battery electric equipment is greatly convenient to install, and the assembly efficiency of the electric equipment is improved.
Specifically, referring to fig. 7, a step surface is formed on the inner side of a through hole, and a clamping ring 42 is formed on the outer periphery of one end of the electrode far away from the protection plate 20 in a extending manner, wherein the clamping ring 42 is clamped on the step surface;
in the above scheme, after the output electrode 40 is clamped in, the top cover clamping position plays a role in supporting the battery, the clamping buckle ensures the firmness of the copper electrode after being installed, and the situation that the electrode is pressed down and sunk due to the fact that the battery electrode is in pressure contact with the thimble of the electric equipment after the battery is installed is avoided.
Specifically, referring to fig. 5, a protective layer 50 is coated on the outer peripheral surface of the battery cell main body 30;
further, the protective layer 50 is formed by sequentially laminating a back adhesive layer 51, a heat dissipation layer 52 and a buffer filling layer 53;
further, the back adhesive layer 51 is close to one side of the cell main body 30; the heat dissipation layer 52 is made of graphene material;
in the above scheme, the back adhesive layer 51 can make the protection layer 50 adhere to the cell main body 30, so as to be effectively close to the battery; the heat dissipation layer 52 is made of graphene material, so that heat dissipation of the battery during high-rate discharge is facilitated, and heat dissipation performance of the battery is improved.
Further, the buffer filling layer 53 is a foam layer;
in the scheme, the foam layer is favorable for the assembly of the battery cell wrapped and the shell, so that the battery can be prevented from shaking in the metal shell, and the stability of the battery structure is further improved.
It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the present application in any way, and any simple modification, equivalent variations and modification made to the above embodiments according to the technical principles of the present application are within the scope of the technical solutions of the present application.
Claims (10)
1. The utility model provides a dysmorphism high multiplying power battery which characterized in that: comprises an outer shell body with an accommodating space and a battery cell arranged in the accommodating space;
the battery cell comprises a battery cell main body, a protection plate, an output electrode and a connecting piece; the battery cell comprises a battery cell main body, wherein two ends of the battery cell main body are respectively led out of a positive electrode lug and a negative electrode lug, the positive electrode lug is led out of one end of the negative electrode lug through a connecting piece, or the negative electrode lug is led out of one end of the positive electrode lug through the connecting piece;
the lugs of the positive electrode lug and the negative electrode lug are positioned at the first end part of the battery cell;
the protection board is arranged at the first end part of the battery cell, the output electrode is arranged on the protection board, a first through hole is formed at the first end part of the outer shell, and the output electrode is communicated with the outside through the first through hole.
2. The shaped high rate battery of claim 1, wherein: and a second through hole is formed in the protection plate, and the lug position of the positive electrode lug and the lug position of the negative electrode lug respectively penetrate out of the second through hole.
3. The shaped high rate battery of claim 1, wherein: the outer shell comprises a bottom shell, a top shell and a shell body connected between the bottom shell and the top shell;
the first through hole is formed on the top case.
4. The shaped high rate battery of claim 3, wherein: the end face of the output electrode does not exceed the end face of the top shell.
5. The shaped high rate battery of claim 3, wherein: and a thread is formed on the peripheral wall of one end of the output electrode, which is close to the protection plate, and the output electrode is in threaded connection with the protection plate.
6. The shaped high rate battery of claim 5, wherein: a step surface is formed on the inner side of the first through hole, a clamping ring is formed on the periphery of one end, far away from the protection plate, of the output electrode in an extending mode, and the clamping ring is clamped on the step surface.
7. The shaped high rate battery of claim 3, wherein: the shell body and the bottom shell are made of nickel plating steel metal.
8. The shaped high rate battery of claim 1, wherein: the outer peripheral surface of the battery cell main body is coated with a protective layer;
the protective layer is formed by sequentially overlapping a back adhesive layer, a heat dissipation layer and a buffer filling layer;
the back adhesive layer is close to one side of the battery cell main body; the heat dissipation layer is made of graphene materials.
9. The shaped high rate battery of claim 8, wherein: the buffer filling layer is a foam layer.
10. The shaped high rate battery of claim 1, wherein: the connecting piece is a flexible FPC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320224361.9U CN219498008U (en) | 2023-02-13 | 2023-02-13 | Special-shaped high-rate battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320224361.9U CN219498008U (en) | 2023-02-13 | 2023-02-13 | Special-shaped high-rate battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219498008U true CN219498008U (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320224361.9U Active CN219498008U (en) | 2023-02-13 | 2023-02-13 | Special-shaped high-rate battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219498008U (en) |
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2023
- 2023-02-13 CN CN202320224361.9U patent/CN219498008U/en active Active
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