CN210224214U - Winding type button battery with insulating needle or metal needle electric core - Google Patents
Winding type button battery with insulating needle or metal needle electric core Download PDFInfo
- Publication number
- CN210224214U CN210224214U CN201921382663.9U CN201921382663U CN210224214U CN 210224214 U CN210224214 U CN 210224214U CN 201921382663 U CN201921382663 U CN 201921382663U CN 210224214 U CN210224214 U CN 210224214U
- Authority
- CN
- China
- Prior art keywords
- needle
- winding type
- insulating
- metal
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Abstract
The utility model discloses a coiling type button cell with insulating needle or metal needle electric core, which comprises two metal shells and an insulating layer arranged between the two metal shells, wherein the two metal shells are sealed by the insulating layer and mutually separated to form a sealed cavity, the sealed cavity is internally provided with the coiling type electric core and electrolyte, one end surface of the coiling type electric core is provided with at least one positive lug, the other end surface of the coiling type electric core is provided with at least one negative lug, the positive lug and the negative lug are respectively attached on the end surface of the coiling type electric core through insulating elements, the axial direction of the coiling type electric core is provided with the insulating needle or the metal needle, the insulating needle or the metal needle improves the rigidity intensity of the electric core, increases the radial supporting force of the electric core, and for the button cell with the charging and discharging function and the larger volume change of the internal electric core, the battery core pole piece is not easy to deform or break, the quality of the battery is more stable, and the service life of the product is longer.
Description
Technical Field
The utility model relates to a battery field especially relates to a coiling type button cell with insulating needle or metal needle electricity core.
Background
The button cell is a sealed cell with all metal shell, and features small size and strong sealing property, so it is widely used in computer, hearing aid, electronic watch, radio and various electronic products.
In current button cell, including two metal casing halfbodies, install the electric core winding at metal casing inside, electric core winding includes positive plate, negative pole piece and is located the film between positive plate and the negative pole piece, positive plate, film and negative pole piece stack coiling form the mesopore for hollow electric core winding, the mesopore is convenient for realize the inside welded operation to pole piece and shell, but when the battery at the in-process of circulation charge-discharge, positive and negative pole piece can constantly expand and shrink, because electric core winding mesopore leads to the radial support power undersize of electric core for hollow, causes the inside skew of pole piece toward the mesopore easily, and buckling deformation appears easily in the pole piece, the phenomenon of pole piece fragment can appear even, especially to the battery product that has the charge-discharge function, and there is the short technical problem of life in the design of electric core mesopore for hollow.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned defect among the prior art, provide a long service life, have charge-discharge function, the coiling type button cell that has insulating needle or metal needle electricity core of electricity core non-deformable.
In order to achieve the above object, the utility model provides a coiling type button cell with insulating needle or metal needle electricity core, including two metal casing, install the insulating layer between two metal casing, two metal casing are sealed the alternate segregation by the insulating layer and form a sealed chamber, coiling type electricity core and electrolyte have been installed to sealed intracavity, a terminal surface facial make-up of coiling type electricity core is equipped with at least one anodal ear, the other terminal surface facial make-up of coiling type electricity core is equipped with at least one negative pole ear, the laminating of insulating element is passed through respectively on the terminal surface of coiling type electricity core to one side of anodal ear and negative pole ear, the opposite side of anodal ear is connected with one of two metal casing's electricity, the opposite side and another metal casing electricity of negative pole ear are connected, the axial facial make-up of coiling type electricity core is equipped with insulating needle or metal needle.
Preferably, the two metal shells form a cylindrical shaped housing.
Preferably, the top surface of the shell formed by the two metal shells is provided with a straight-line-shaped groove.
Preferably, the bottom surface of the shell formed by the two metal shells is provided with a cross-shaped groove.
Preferably, the winding type battery cell comprises a positive plate, a negative plate and a film positioned between the positive plate and the negative plate, wherein the positive plate, the film and the negative plate are stacked and wound by taking an insulating needle or a metal needle as an axis to form the winding type battery cell.
Preferably, the positive plate is electrically connected with the positive tab, and the negative plate is electrically connected with the negative tab.
Preferably, the winding type battery cell is cylindrical.
Preferably, the positive electrode tab and the negative electrode tab are both arranged in the middle or at the tail of the end face of the winding type battery cell.
Preferably, the positive tab and the negative tab are both flat and sheet-shaped.
Preferably, one side surface of the positive electrode tab or the negative electrode tab is an anodized insulating layer or an embedded insulating glue layer.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model comprises two metal shells and an insulating layer arranged between the two metal shells, wherein the two metal shells are sealed by the insulating layer and separated from each other to form a sealed cavity, the sealing cavity is internally provided with a winding type battery cell and electrolyte, one end face of the winding type battery cell is provided with at least one positive lug, at least one negative electrode tab is arranged on the other end face of the winding type electric core, the positive electrode tab and the negative electrode tab are respectively attached to the end face of the winding type electric core through an insulating element, the axial direction of the winding type electric core is provided with an insulating needle or a metal needle, the insulating needle or the metal needle improves the rigidity strength of the electric core and increases the radial supporting force of the electric core, for the button battery with the charging and discharging function and the large change of the internal battery core volume, the battery core pole piece is not easy to deform or break, the quality of the battery is more stable, and the service life of the product is longer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a rolled battery having integrated insulated tabs provided by the present invention;
fig. 2 is a rear view of a rolled battery having integrated insulated tabs provided by the present invention;
fig. 3 is a cross-sectional view taken along line a-a of a rolled battery having integrated insulated tabs according to the present invention;
fig. 4 is a schematic view of a first structure of a winding type battery cell provided by the present invention;
fig. 5 is a second schematic structural diagram of a winding type battery cell provided by the present invention;
fig. 6 is a schematic diagram of a third structure of a winding type battery cell provided by the present invention;
fig. 7 is a schematic diagram of the positive and negative electrode lugs provided by the present invention disposed at the tail of the end surface of the electrical core;
fig. 8 is a schematic diagram of the positive and negative electrode ears disposed at the middle of the end surface of the battery cell.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-3, the utility model provides a winding type button cell with insulating needle or metal needle electric core, which comprises two metal shells 1, wherein the two metal shells 1 form a cylindrical shell with a plane bottom and a plane top, wherein the top shell is a cathode, the bottom shell is an anode, the top shell and the bottom shell can be formed by stamping nickel-plated deep-drawn metal sheets as raw materials, the cylindrical shell not only occupies a small space on electronic products, the round design without cutting hands improves the user experience, the top surface of the shell formed by the two metal shells 1 is provided with a linear groove 12, the bottom surface of the shell formed by the two metal shells 1 is provided with a cross groove 13, the linear groove 12 marks the cathode, the cross groove 13 marks the anode, the marking is used for visually distinguishing the direction of the anode and the cathode for the user, the utility model discloses a button cell, including two metal casing 1, insulating layer 2, the casing of button cell, especially to the battery system that has reversible chemical reaction's charge-discharge function, the inside axial stress of battery case changes great in the in-process of charging and discharging, if two metal casing 1 adopt ordinary insulating layer to pile up and seal, the phenomenon that electrolyte was revealed appears very easily in axial load like this, top shell and bottom shell form a sealed chamber after being sealed by insulating layer 2, coiling type electricity core 3 and electrolyte have been installed to the sealed chamber, wherein the lithium ion electrolyte preferably adopts the lithium ion electrolyte solution.
As shown in fig. 4-6, the winding type cell 3 is installed in a cylindrical shape inside the sealed cavity, the axis of the winding type cell 3 passes through the bottom plane and the top plane of the metal casing 1, an insulating needle or a metal needle 31 is installed in the axial direction of the winding type cell 3, the insulating needle or the metal needle 31 may be a plastic needle or a non-guiding needle, the winding type cell 3 includes a positive plate, a negative plate and a film located between the positive plate and the negative plate, the positive plate, the film and the negative plate are stacked and the insulating needle or the metal needle 31 is wound as a rotating shaft to form the winding type cell 3, the insulating needle or the metal needle 31 improves the rigidity strength of the winding type cell 3, increases the radial supporting force of the winding type cell 3, for a button battery with a large change in the internal cell volume and a charge-discharge function, the cell is not easy to deform or break, and the quality of the battery is more stable, the product has longer service life, the positive plate is preferably an aluminum plate, the negative plate is preferably nickel or copper, the negative plate has the function of embedding and releasing lithium ions, the film is a porous plastic sheet with electronic insulation property but capable of conducting ions, at least one positive tab 4 is arranged on one end face of the winding type battery cell 3, at least one negative tab 5 is arranged on the other end face of the winding type battery cell 3, the positive tab 4 and the negative tab 5 are respectively attached to the end face of the winding type battery cell 3 through an insulating element 6, the positive plate is electrically connected with the positive tab 4, the negative plate is electrically connected with the negative tab 5, the positive tab 4 and the negative tab 5 are both in flat sheet design, wherein the sheet can be in a circular, square or polygonal shape, and preferably, the positive tab 4 and the negative tab 5 are both made of metal foil with good conductivity and the thickness of 5-100 micrometers, insulating element 6 and utmost point ear itself are the design of integration, a side of anodal ear 4 and negative pole ear 5 is the metal forming, and another side is anodic oxidation's insulating layer or the insulating glue film of embedding, anodal ear 4 and negative pole ear 5 have an insulating side and all laminate on winding type electricity core 3's terminal surface, have guaranteed to form good insulating effect between the terminal surface of anodal ear 4/negative pole ear 5 and winding type electricity core 3, and delamination and the bad phenomenon of upwarp can not appear in the design of utmost point ear and the integration of insulating layer 6, can not lead to the secondary short circuit of battery, and this kind of insulating mode is favorable to the whole automated production operation of battery simultaneously, improves the production efficiency of battery.
As shown in fig. 7 and 8, the positive tab 4 and the negative tab 5 are both disposed at the middle portion or the tail portion of the end surface of the winding type electrical core 3, and the positive tab 4 and the negative tab 5 disposed at the middle portion of the end surface of the winding type electrical core 3 can be attached to the tail portion of the end surface of the winding type electrical core 3 by bending 90 degrees, or the positive tab 4 and the negative tab 5 disposed at the tail portion of the end surface of the winding type electrical core 3 can be attached to the middle portion of the end surface of the winding type electrical core 3 by bending 90 degrees.
To sum up, the utility model comprises two metal shells 1 and an insulating layer 2 arranged between the two metal shells 1, the two metal shells 1 are sealed and separated by the insulating layer 2 and form a sealed cavity, a winding type cell 3 and electrolyte are arranged in the sealed cavity, at least one positive electrode tab 4 is arranged on one end surface of the winding type cell 3, at least one negative electrode tab 5 is arranged on the other end surface of the winding type cell 3, the positive electrode tab 4 and the negative electrode tab 5 are respectively attached to the end surface of the winding type cell 3 through an insulating element 6, an insulating needle or a metal needle 31 is arranged on the axial direction of the winding type cell 3, the insulating needle or the metal needle 31 improves the rigidity strength of the cell, increases the radial supporting force of the cell, and for the button battery with the charging and discharging function and the larger change of the internal cell volume, the cell is not easy to deform or break, the quality of the battery is more stable, and the service life of the product is longer.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. A winding type button battery with an insulating needle or a metal needle battery cell comprises two metal shells (1) and an insulating layer (2) arranged between the two metal shells (1), wherein the two metal shells (1) are sealed by the insulating layer (2) and separated from each other to form a sealed cavity, the sealed cavity is internally provided with a winding type battery cell (3) and electrolyte, one end face of the winding type battery cell (3) is provided with at least one positive lug (4), the other end face of the winding type battery cell (3) is provided with at least one negative lug (5), one sides of the positive lug (4) and the negative lug (5) are respectively attached to the end face of the winding type battery cell (3) through an insulating element (6), the other side of the positive lug (4) is electrically connected with one of the metal shells (1), the other side of the negative lug (5) is electrically connected with the other metal shell (1), the method is characterized in that: and an insulating needle or a metal needle (31) is arranged on the winding type battery core (3) in the axial direction.
2. The winding type button battery with the insulating needle or the metal needle core as claimed in claim 1, wherein: the two metal shells (1) form a cylindrical housing.
3. The winding type button battery with the insulating needle or the metal needle core as claimed in claim 2, wherein: the top surface of the shell formed by the two metal shells (1) is provided with a straight-line-shaped groove (12).
4. The winding type button battery with the insulating needle or the metal needle core as claimed in claim 2, wherein: the bottom surface of the shell formed by the two metal shells (1) is provided with a cross-shaped groove (13).
5. The winding type button battery with the insulating needle or the metal needle core as claimed in claim 1, wherein: the winding type battery cell (3) comprises a positive plate, a negative plate and a film positioned between the positive plate and the negative plate, wherein the positive plate, the film and the negative plate are stacked and wound by an insulating needle or a metal needle (31) as a rotating shaft to form the winding type battery cell (3).
6. The winding type button battery with the insulating needle or the metal needle core as claimed in claim 5, wherein: the positive plate is electrically connected with the positive tab (4), and the negative plate is electrically connected with the negative tab (5).
7. The winding type button battery with the insulating needle or the metal needle core as claimed in claim 6, wherein: the winding type battery cell (3) is cylindrical.
8. The winding type button battery with the insulating needle or the metal needle core as claimed in claim 1, wherein: and the positive electrode lug (4) and the negative electrode lug (5) are arranged in the middle of the end surface of the winding type electric core (3) or at the tail part of the end surface of the winding type electric core.
9. The winding type button battery with the insulating needle or the metal needle core as claimed in claim 8, wherein: the positive electrode tab (4) and the negative electrode tab (5) are both flat and sheet-shaped.
10. The winding type button battery with the insulating needle or the metal needle core as claimed in claim 9, wherein: one side surface of the positive lug (4) or the negative lug (5) is an anodized insulating layer or an embedded insulating glue layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921382663.9U CN210224214U (en) | 2019-08-24 | 2019-08-24 | Winding type button battery with insulating needle or metal needle electric core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921382663.9U CN210224214U (en) | 2019-08-24 | 2019-08-24 | Winding type button battery with insulating needle or metal needle electric core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210224214U true CN210224214U (en) | 2020-03-31 |
Family
ID=69919975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921382663.9U Active CN210224214U (en) | 2019-08-24 | 2019-08-24 | Winding type button battery with insulating needle or metal needle electric core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210224214U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803124A (en) * | 2021-01-30 | 2021-05-14 | 上海兰钧新能源科技有限公司 | Novel electricity core structure, power battery and electric vehicle |
| WO2021244618A1 (en) * | 2020-06-03 | 2021-12-09 | 珠海冠宇电池股份有限公司 | Button cell and manufacturing method therefor, and electronic device |
| WO2022152126A1 (en) * | 2021-01-12 | 2022-07-21 | 广东维都利新能源有限公司 | Button cell having safety device and manufacturing method for button cell |
| US11862806B2 (en) | 2020-06-03 | 2024-01-02 | Zhuhai Cosmx Battery Co., Ltd. | Button cell and electronic device |
-
2019
- 2019-08-24 CN CN201921382663.9U patent/CN210224214U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021244618A1 (en) * | 2020-06-03 | 2021-12-09 | 珠海冠宇电池股份有限公司 | Button cell and manufacturing method therefor, and electronic device |
| US11862806B2 (en) | 2020-06-03 | 2024-01-02 | Zhuhai Cosmx Battery Co., Ltd. | Button cell and electronic device |
| WO2022152126A1 (en) * | 2021-01-12 | 2022-07-21 | 广东维都利新能源有限公司 | Button cell having safety device and manufacturing method for button cell |
| CN112803124A (en) * | 2021-01-30 | 2021-05-14 | 上海兰钧新能源科技有限公司 | Novel electricity core structure, power battery and electric vehicle |
| CN112803124B (en) * | 2021-01-30 | 2024-01-12 | 上海兰钧新能源科技有限公司 | Novel electric core structure, power battery and electric vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210224214U (en) | Winding type button battery with insulating needle or metal needle electric core | |
| CN210224213U (en) | Winding type button battery with integrated insulation tabs | |
| CN210224197U (en) | External welding type winding type button battery | |
| CN212380440U (en) | Winding type battery cell and battery | |
| CN211654976U (en) | Button type lithium battery without electrode lugs | |
| KR20180116004A (en) | Electrode assembly | |
| CN210403887U (en) | Multi-tab battery cell, lithium ion battery and electronic product | |
| CN111640994A (en) | Battery roll core and manufacturing method of lithium battery using same | |
| CN212571274U (en) | Lithium ion battery and electronic device | |
| CN212380471U (en) | Hard shell button cell | |
| CN101958430B (en) | Lithium ion battery core with continuous lamination and lithium ion battery | |
| CN210403778U (en) | Button cell for improving radial space utilization rate | |
| CN210628401U (en) | Cylindrical lithium ion battery with multiple tabs | |
| CN208336372U (en) | Electrode plates, electrode assembly and secondary cell | |
| CN210778837U (en) | Winding type button battery with pole piece coated outside battery core | |
| CN103370814A (en) | Lithium-ion cell, lithim-ion rechargeable battery and motor vehicle with a lithium-ion rechargeable battery | |
| CN213520091U (en) | Button cell core structure and button cell | |
| CN212907874U (en) | Battery without pole ear | |
| CN113875059B (en) | Battery cell structure and battery | |
| CN214043758U (en) | Cylindrical lithium ion battery and battery module | |
| CN101499541A (en) | Novel winding type lithium ionic cell and manufacturing method thereof | |
| CN212571096U (en) | Core of electrodeless ear battery and lithium battery using core | |
| CN210224198U (en) | Winding type button battery with insulated battery core end face | |
| CN112952208A (en) | Square winding button type lithium battery | |
| CN107681094B (en) | Cylindrical battery structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 405400 building 1-4, Puli industrial new area, Zhaojia street, Kaizhou District, Chongqing Patentee after: Chongqing Zijian Electronic Co.,Ltd. Address before: 405400 building 1-4, Puli industrial new area, Zhaojia street, Kaizhou District, Chongqing Patentee before: CHONGQING VDL ELECTRONICS Co.,Ltd. |