CN209691881U - A kind of coiled lithium ion battery - Google Patents
A kind of coiled lithium ion battery Download PDFInfo
- Publication number
- CN209691881U CN209691881U CN201920303374.9U CN201920303374U CN209691881U CN 209691881 U CN209691881 U CN 209691881U CN 201920303374 U CN201920303374 U CN 201920303374U CN 209691881 U CN209691881 U CN 209691881U
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- China
- Prior art keywords
- battery core
- shell
- core frame
- battery
- lithium ion
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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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a kind of coiled lithium ion batteries, including shell and positioned at the battery core of interior of shell, the shell is respectively equipped with sealing station and pedestal in two sides up and down, sealing station edge has arc platform, the battery core has Packed battery core frame, it is adhesive layer between battery core frame and shell, embedded in adhesive layer there are two conductive sheets；The design passes through the battery core with battery core frame, and two sides are equipped with circular arc protrusion up and down in battery core frame, considerably increase the area of exoelectrical reaction, so that positive and negative pole material can sufficiently participate in exoelectrical reaction, enhance the discharge performance of battery, and the setting for passing through arc convex, since local elongation deforms, make battery core frame in process since vapor and oxygen reaction are formed by oxide layer and are deteriorated, therefore battery plus-negative plate surface-active increases, reduce the internal resistance of battery, to reduce loss when electricity conveys and reduce the generation of heat.
Description
Technical field
The utility model relates to battery, specifically a kind of coiled lithium ion battery.
Background technique
Lithium ion battery is a kind of secondary cell (rechargeable battery), it relies primarily on lithium ion and moves between a positive electrode and a negative electrode
It moves and carrys out work.In charge and discharge process, Li+ insertion and deintercalation back and forth between two electrodes: when charging, Li+ is de- from anode
It is embedding, it is embedded in cathode by electrolyte, cathode is in lithium-rich state；It is then opposite when electric discharge.
Battery core is generally sealed in shell with rubber stopper by traditional lithium ion battery, in the connection for carrying out electrode
When, positive and negative pole material and positive and negative polar cap completely attach to, and keep battery internal resistance excessive, influence the discharge performance of battery, and interior
Hinder it is excessive also will cause the problem of battery is rapidly heated, due to inside battery be sealing state, be rapidly heated and easily cause electricity
The excessively high problem of pond temperature, seriously affects the service life of battery.
Utility model content
The purpose of this utility model is to provide a kind of coiled lithium ion batteries, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the utility model provides the following technical solutions:
A kind of coiled lithium ion battery, including shell and positioned at the battery core of interior of shell, the shell up and down divide by two sides
Not She You sealing station and pedestal, sealing station edge has an arc platform, and the battery core has a Packed battery core frame, battery core frame and
Be adhesive layer between shell, buried in adhesive layer there are two conductive sheet, two conductive sheets respectively be located in sealing station just
Pole needle is connected with cathode needle, be equipped in the battery core frame by the positive plate and negative electrode tab of fitting winding form around roll film,
And membrane layer is equipped between positive plate and negative electrode tab, positive electrode is filled above coiling piece, and cathode material is filled below roll film
Material, and positive plate is protruding upward contacts with positive electrode, negative electrode tab is downwardly projected to be contacted with negative electrode material, on battery core frame inside
Lower two sides all has multiple arcs protrusion.
The junction of the anode needle, cathode needle and sealing station is equipped with injection molded layers and keeps sealing ring for interior of shell
Border, and positive needle and cathode needle bottom are equipped with the pad being recessed inwardly, and pad is spherical in semiellipse, facilitates and is welded
Connect the injection of material.
As a preferred embodiment of the present invention: the pedestal include successively be bonded stick face and radiating surface, and stick
Face bottom surface and radiating surface top surface are the ripple joint face to match, and radiating surface bottom offers multiple heat release holes, stick face and outer
Shell is an integral structure, and heat-conductive coating and viscose glue are filled at ripple joint face.
Compared with prior art, the utility model has the beneficial effects that the design is by the battery core with battery core frame, and
And two sides are equipped with circular arc protrusion up and down in battery core frame, the area of exoelectrical reaction are considerably increased, so that positive and negative anodes
Material can sufficiently participate in exoelectrical reaction, the discharge performance of battery be enhanced, and by the setting of arc convex, due to part
Stretcher strain makes battery core frame in process since vapor and oxygen reaction are formed by oxide layer and are deteriorated, because
This battery plus-negative plate surface-active increases, and reduces the internal resistance of battery, to reduce loss when electricity conveys and reduce
The generation of heat.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the top view of core strueture in the utility model.
Fig. 3 is the part-structure sectional view of sealing station in the utility model.
Fig. 4 is the part-structure sectional view of the utility model in the base.
1- shell in figure, 2- pedestal, 3- sealing station, 4- anode needle, 5- cathode needle, 6- adhesive layer, 7- conductive sheet, 8- electricity
Core, 9- positive plate, 10- negative electrode tab, 11- dielectric layer, 12- battery core frame, 13- arc convex, 14- membrane layer, 15- injection molding
Layer, 16- pad, 17- arc platform, 18- stick face, 19- ripple joint face, 20- radiating surface, 21- heat release hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right" are " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment 1:
Please refer to Fig. 1-4, a kind of coiled lithium ion battery, the battery core 8 including shell 1 and inside shell 1 is described
About 1 two sides of shell are respectively equipped with sealing station 3 and pedestal 2, and 3 edge of sealing station has arc platform 17, and the battery core 8 has sealing
Battery core frame 12, be adhesive layer 6 between battery core frame 12 and shell 1, buried in adhesive layer 6 there are two conductive sheet 7, two
Conductive sheet 7 is connected with the positive needle 4 and cathode needle 5 being located in sealing station 3 respectively, is equipped in the battery core frame 12 by being bonded
Winding positive plate 9 and negative electrode tab 10 composition around roll film, and between positive plate 9 and negative electrode tab 10 be equipped with membrane layer 14, around
Positive electrode is filled above roll film, negative electrode material is filled below roll film, and positive plate 9 is protruding upward contacts with positive electrode,
Negative electrode tab 10 is downwardly projected to be contacted with negative electrode material, and 12 inside upper and lower surface of battery core frame all has multiple arcs protrusion 13, arc
Shape protrusion 13 considerably increases the area of exoelectrical reaction, so that positive and negative pole material can sufficiently participate in exoelectrical reaction, enhancing
The discharge performance of battery, and pass through the setting of arc convex 13, since local elongation deforms, processing battery core frame 12
In the process since vapor and oxygen reaction are formed by oxide layer and are deteriorated, battery plus-negative plate surface-active increases,
Reduce the internal resistance of battery, to reduce loss when electricity conveys and reduce the generation of heat.
Specifically, the junction of the anode needle 4, cathode needle 5 and sealing station 3 is equipped with injection molded layers 15 in shell 1
Portion keeps sealed environment, and positive needle 4 and 5 bottom of cathode needle are equipped with the pad 16 being recessed inwardly, and pad 16 is in half
It is oval spherical, facilitate the injection for carrying out welding material.
In process, the coiling work for completing positive/negative plate first realizes positive/negative plate in vertical side in coiling
Upwards slightly staggeredly, by after coiling around roll film being placed in battery core frame 12 it is fixed after, the two sides up and down into battery core frame 12
Positive and negative pole material is injected, conductive sheet 7 is then connected, and be placed in shell 1, sealing, last positive and negative anodes needle is injected into shell 1
Welding and complete sealing station 3 installation injection molding.
Embodiment 2:
The difference from embodiment 1 is that since battery will necessarily generate in charge and discharge process since self-resistance acts on
Heat, to avoid heat excessively high, the pedestal 2 sticks face 18 and radiating surface 20 including what is be successively bonded, and sticks 18 bottom surface of face
It is the ripple joint face 19 to match with 20 top surface of radiating surface, 20 bottom of radiating surface offers multiple heat release holes 21, sticks face 18
It is an integral structure with shell 1, heat-conductive coating and viscose glue is filled at ripple joint face 19, the heat of battery is conducted to heat dissipation
Face 20 simultaneously passes through multiple 21 improving radiating effects of heat release hole, sticks face 18 and guarantees leakproofness, and ripple joint face 19 increases heat
The area of conduction.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. a kind of coiled lithium ion battery including shell (1) and is located at shell (1) internal battery core (8), the shell (1)
Upper and lower two sides are respectively equipped with sealing station (3) and pedestal (2), which is characterized in that the battery core (8) has Packed battery core frame
It (12), is adhesive layer (6) to be buried in adhesive layer (6) there are two conductive sheet (7), two between battery core frame (12) and shell (1)
A conductive sheet (7) is connected with the positive needle (4) and cathode needle (5) being located on sealing station (3) respectively, the battery core frame (12)
It is interior be equipped with by the positive plate (9) and negative electrode tab (10) of fitting winding form around roll film, and in positive plate (9) and negative electrode tab (10)
Between be equipped with membrane layer (14), positive electrode is filled above coiling piece, negative electrode material, and positive plate (9) are filled below roll film
Protruding upward to contact with positive electrode, negative electrode tab (10) is downwardly projected to be contacted with negative electrode material, on the inside of battery core frame (12) up and down
It is raised (13) that two sides all has multiple arcs.
2. a kind of coiled lithium ion battery according to claim 1, which is characterized in that sealing station (3) edge
With arc platform (17).
3. a kind of coiled lithium ion battery according to claim 1 or 2, which is characterized in that the anode needle (4) is born
The junction of pole needle (5) and sealing station (3) is equipped with injection molded layers (15), and positive needle (4) and cathode needle (5) bottom is equipped with
The pad (16) being recessed inwardly.
4. a kind of coiled lithium ion battery according to claim 3, which is characterized in that the pad (16) is ellipse in half
Spherical shape.
5. a kind of coiled lithium ion battery according to claim 1 or 2, which is characterized in that the pedestal (2) include according to
Secondary fitting sticks face (18) and radiating surface (20), and sticking face (18) bottom surface and radiating surface (20) top surface is the ripple to match
Joint face (19), radiating surface (20) bottom offer multiple heat release holes (21), and sticking face (18) and shell (1) is integral type knot
Structure is filled with heat-conductive coating and viscose glue at ripple joint face (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920303374.9U CN209691881U (en) | 2019-03-11 | 2019-03-11 | A kind of coiled lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920303374.9U CN209691881U (en) | 2019-03-11 | 2019-03-11 | A kind of coiled lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209691881U true CN209691881U (en) | 2019-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920303374.9U Active CN209691881U (en) | 2019-03-11 | 2019-03-11 | A kind of coiled lithium ion battery |
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| Country | Link |
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| CN (1) | CN209691881U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782340A (en) * | 2020-06-10 | 2021-12-10 | 钰邦科技股份有限公司 | Winding type capacitor packaging structure and manufacturing method thereof |
| CN115360436A (en) * | 2022-08-17 | 2022-11-18 | 东莞市钜业机械有限公司 | Full-automatic sheet-making winding machine and sheet-making winding method thereof |
-
2019
- 2019-03-11 CN CN201920303374.9U patent/CN209691881U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113782340A (en) * | 2020-06-10 | 2021-12-10 | 钰邦科技股份有限公司 | Winding type capacitor packaging structure and manufacturing method thereof |
| CN113782340B (en) * | 2020-06-10 | 2024-01-23 | 钰邦科技股份有限公司 | Winding type capacitor packaging structure and manufacturing method thereof |
| CN115360436A (en) * | 2022-08-17 | 2022-11-18 | 东莞市钜业机械有限公司 | Full-automatic sheet-making winding machine and sheet-making winding method thereof |
| CN115360436B (en) * | 2022-08-17 | 2024-06-28 | 东莞市钜业机械有限公司 | Full-automatic flaking and winding machine and flaking and winding method thereof |
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