CN213184390U - Button type soft package battery core and button battery - Google Patents
Button type soft package battery core and button battery Download PDFInfo
- Publication number
- CN213184390U CN213184390U CN202021208880.9U CN202021208880U CN213184390U CN 213184390 U CN213184390 U CN 213184390U CN 202021208880 U CN202021208880 U CN 202021208880U CN 213184390 U CN213184390 U CN 213184390U
- Authority
- CN
- China
- Prior art keywords
- hem
- electric core
- button
- battery cell
- core body
- 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.)
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- 210000005056 cell body Anatomy 0.000 claims description 46
- 210000004027 cell Anatomy 0.000 claims description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 11
- 229920000642 polymer Polymers 0.000 abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 8
- 239000004020 conductor Substances 0.000 abstract description 5
- 238000006056 electrooxidation reaction Methods 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 239000012528 membrane Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/109—Primary casings; Jackets or wrappings characterised by their shape or physical structure of button or coin shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model belongs to the technical field of the laminate polymer battery, a knot formula laminate polymer battery core and button cell is related to, including electric core body and insulating cover, the side of electric core body has the hem of encircleing its circumference, and the hem is buckled along the axial of electric core body, and the side of electric core body is located to insulating cover to wrap up the hem. The insulating sleeve is sleeved on the side surface of the electric core body and wraps the folded edge, so that the folded edge is always wrapped by the insulating sleeve, and the aluminum material on the end surface of the folded edge is prevented from being exposed outside, thereby avoiding the short circuit caused by the mistaken contact with an electronic component when the folded edge is used as a conductor in the subsequent assembly, and avoiding the electrochemical corrosion caused by the contact of the folded edge and a self cathode to form a primary battery; the insulating boot can also tie the hem, avoids the hem of buckling along the axial of electric core body to lead to the fact the hem bounce-back towards the slow motion of the intermediate position of electric core body under the effect of extrusion stress, leads to detaining the volume increase of soft-packaged electric core.
Description
Technical Field
The utility model belongs to the technical field of the laminate polymer battery, especially, relate to a knot formula laminate polymer battery core and button cell.
Background
The lithium ion battery is a secondary battery (rechargeable battery) and mainly works by moving lithium ions between a positive electrode and a negative electrode, and the soft package battery cell is an important component of the lithium ion battery and is a power storage part of the lithium ion battery, and the quality of the lithium ion battery is determined by the quality of the soft package battery cell.
The button cell is a cell with the overall dimension like a small button, and generally has a larger diameter and a thinner thickness; button cell includes knot formula laminate polymer core, and knot formula laminate polymer core includes pole piece, diaphragm and plastic-aluminum membrane, and the diaphragm is used for separating the different pole pieces of polarity, and the plastic-aluminum membrane is used for along upper and lower direction encapsulation pole piece and diaphragm, and its edge forms the hem behind the plastic-aluminum membrane encapsulation, and nevertheless the terminal surface aluminum product of hem exposes outside, leads to electronic components misconnection short circuit when probably leading to follow-up assembly as the conductor, still probably forms the primary cell with self negative pole contact, takes place electrochemical corrosion.
The mode that current knot formula soft packet of electricity core adopted to paste the double faced adhesive tape on the hem usually, avoids the terminal surface aluminum product of hem to expose, and the double faced adhesive tape drops from the hem very easily nevertheless for the terminal surface aluminum product of hem exposes outside easily.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: to the problem that the end face aluminum product of current hem exposes easily, provide a knot formula laminate polymer battery core and button cell.
In order to solve the technical problem, the embodiment of the utility model provides a knot formula soft-packaged electrical core, including electric core body and insulating cover, the side of electric core body has the hem of encircleing its circumference, the hem is followed the axial of electric core body is buckled, insulating cover is located the side of electric core body, and the parcel the hem.
Optionally, the insulating sleeve is an elastic sleeve.
Optionally, the elastic sleeve is a PET sleeve, a rubber sleeve or a silica gel sleeve.
Optionally, the wall thickness of the elastic sleeve is 0.03-0.5 mm.
Optionally, the inner diameter of the elastic sleeve is always the same along the axial direction of the cell body.
Optionally, the insulating sleeve covers the side surface of the cell body.
Optionally, two ends of the insulating sleeve along the axial direction of the cell body do not protrude out of the axial end face of the cell body.
Optionally, the diameters of the two ends of the insulating sleeve in the axial direction of the cell body are smaller than the diameter of the middle cross section of the insulating sleeve.
The utility model also provides a button cell, the knot formula laminate polymer electric core that mentions including above-mentioned arbitrary technical scheme.
Optionally, the battery further comprises a hard shell, and the button type soft package battery cell is arranged in the hard shell.
The button type soft package battery cell and the button battery provided by the embodiment of the utility model are arranged on the side surface of the battery cell body through the insulating sleeve, and the insulating sleeve is wrapped with the hem, so that the insulating sleeve and the battery cell body are fixed relatively, the hem is always wrapped with the insulating sleeve, and the end surface aluminum product of the hem is prevented from being exposed outside, thereby avoiding the short circuit caused by the wrong contact of the hem with electronic components when the hem is used as a conductor to lead to subsequent assembly, and avoiding the electrochemical corrosion caused by the fact that the hem is contacted with the self negative electrode to form a primary battery; the insulating sleeve can also bind the folded edge, so that the problem that the folded edge is rebounded due to the fact that the folded edge bent along the axial direction of the cell body slowly moves towards the middle position of the cell body under the action of extrusion stress, and the volume of the buckle type soft-package cell is increased is avoided; the side of electric core body can support the insulating cover, consequently after the hem is buckled towards the axial of electric core body, can remain the clearance between the side of hem and electric core body, has reserved certain space for the circulation inflation of electric core body, has improved the security performance of knot formula soft-packaged electric core.
Drawings
Fig. 1 is a schematic structural view of a buckle-type soft-package battery cell provided by an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
fig. 3 is a schematic structural view of the insulating sleeve of fig. 1.
The reference numerals in the specification are as follows:
1. a buckle type soft package battery cell; 11. a cell body; 12. folding edges; 13. and an insulating sleeve.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to fig. 3, the embodiment of the utility model provides a soft packet of electricity core of knot formula, including cell body 11 and insulating cover 13, the side of cell body 11 has hem 12 around its circumference, and hem 12 is buckled along the axial of cell body 11, and the side of cell body 11 is located to insulating cover 13 cover to parcel hem 12.
Compared with the prior art, the button type soft package battery cell 1 provided by the utility model has the advantages that the insulating sleeve 13 is sleeved on the side surface of the battery cell body 11 and wraps the folded edge 12, so that the insulating sleeve 13 and the battery cell body 11 are fixed relatively, the folded edge 12 is always wrapped by the insulating sleeve 13, and the end surface aluminum material of the folded edge 12 is prevented from being exposed outside, thereby avoiding the short circuit caused by the error contact of the folded edge 12 with an electronic component during subsequent assembly as a conductor, and avoiding the electrochemical corrosion caused by the contact of the folded edge 12 with the negative electrode of the folded edge 12 to form a primary battery; the insulating sleeve 13 can also bind the folded edge 12, so that the situation that the folded edge 12 which is bent along the axial direction of the cell body 11 slowly moves towards the middle position of the cell body 11 under the action of extrusion stress to cause the rebound of the folded edge 12, and the volume of the buckle type soft package cell 1 is increased is avoided; insulating cover 13 can be supported to the side of cell body 11, consequently buckles the back towards the axial of cell body 11 at hem 12, can remain the clearance between hem 12 and the side of cell body 11, has reserved certain space for the circulation inflation of cell body 11, has improved the security performance of knot formula soft-packaged electrical core 1.
In an embodiment, insulating cover 13 is the elastic sleeve, is convenient for locate electric core body 11 with insulating cover 13 cover, still conveniently ties hem 12 simultaneously, avoids hem 12 bounce-back and leads to the volume increase of knot formula soft-packaged electric core 1.
In an embodiment, the elastic sleeve is a PET sleeve, a rubber sleeve or a silica gel sleeve, so that a user can select the insulating sleeve 13 made of different materials according to the requirements of the button type soft package battery cell 1 such as manufacturing cost, volume, energy density and safety performance.
In an embodiment, the wall thickness of the elastic sleeve is 0.03-0.5mm, so as to ensure the strength of the elastic sleeve, avoid the disconnection due to too thin wall thickness of the elastic sleeve, and avoid the increase of the volume of the buckle-type soft-package battery cell 1 due to too thick wall thickness of the elastic sleeve, and the too thick wall thickness of the elastic sleeve can increase the difficulty of sleeving the insulating sleeve 13 on the battery cell body 11.
In an embodiment, as shown in fig. 1 and 3, the inner diameter of the elastic sleeve is always the same along the axial direction of the cell body 11, and the elastic sleeve can be sleeved on the side surfaces of the cell bodies 11 with different shapes by using the elasticity of the elastic sleeve, so that the universality of the elastic sleeve is improved.
In an embodiment, as shown in fig. 1, the insulating sleeve 13 covers the side surface of the cell body 11, so as to prevent a foreign object from contacting the side surface of the cell body 11 and piercing through the cell body 11, which may damage the cell body 11, and also insulate the side surface of the cell body 11, thereby preventing the side surface of the cell body 11 from being scratched and then contacting other structures to cause electrochemical corrosion.
In an embodiment, as shown in fig. 1, two ends of the insulating sleeve 13 in the axial direction of the cell body 11 do not protrude out of the axial end surface of the cell body 11, so as to avoid that two ends of the insulating sleeve 13 protrude out of the axial end surface of the cell body 11, which results in a part of the insulating sleeve 13 protruding out of the axial end surface of the cell body 11 occupying space and affects the energy density of the buckle-type soft-package cell 1.
In one embodiment, the diameters of the two ends of the insulating sleeve 13 in the axial direction of the cell body 11 are smaller than the diameter (not shown) of the middle cross section of the insulating sleeve 13, so that the diameter of the insulating sleeve 13 changes along with the change of the diameter of the cell body 11, and the whole insulating sleeve 13 is more compactly attached to the cell body 11.
The utility model also provides a button cell, button cell include the knot formula laminate polymer battery core 1 that any above-mentioned embodiment was mentioned.
The utility model provides a button cell, through the insulating hem 12 of the insulating cover 13 of locating electric core body 11 side, the terminal surface aluminum product of having avoided hem 12 exposes outside to avoided hem 12 to with electronic components misconnection and short circuit when leading to follow-up assembly as the conductor, insulating cover 13 can also tie hem 12 simultaneously, in order to reduce the volume of knot formula soft-packaged electrical core 1, thereby increase the energy density of knot formula soft-packaged electrical core 1.
In an embodiment, the button cell further includes a hard casing, and the button soft-package battery cell 1 is disposed in the hard casing to protect the battery cell body 11 through the hard casing, so as to prevent external force from being applied to the battery cell body 11, which results in damage to the battery cell body 11.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a knot formula soft-packaged electrical core, includes the electric core body, the side of electric core body has the hem around its circumference, the hem is followed the axial of electric core body is buckled, its characterized in that still includes insulating cover, insulating cover is located the side of electric core body, and the parcel the hem.
2. The button-type soft package battery cell according to claim 1, wherein the insulating sleeve is an elastic sleeve.
3. The button type soft package battery cell according to claim 2, wherein the elastic sleeve is a PET sleeve, a rubber sleeve or a silica gel sleeve.
4. The button-type soft package battery cell according to claim 2, wherein the wall thickness of the elastic sleeve is 0.03-0.5 mm.
5. The button type soft package battery cell according to claim 2, wherein the inside diameter of the elastic sleeve is the same along the axial direction of the battery cell body.
6. The button type soft package battery cell according to claim 1, wherein the insulating sleeve covers the side surface of the battery cell body.
7. The button type soft package battery cell according to claim 6, wherein two ends of the insulating sleeve along the axial direction of the battery cell body do not protrude out of the axial end face of the battery cell body.
8. The button type soft package battery cell according to claim 1, wherein the diameters of the two ends of the insulating sleeve along the axial direction of the battery cell body are smaller than the diameter of the middle cross section of the insulating sleeve.
9. A button battery, which is characterized by comprising the button soft package battery cell of any one of claims 1-8.
10. The button cell of claim 9, further comprising a rigid housing, wherein the button pouch cell is disposed within the rigid housing.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021208880.9U CN213184390U (en) | 2020-06-23 | 2020-06-23 | Button type soft package battery core and button battery |
| PCT/CN2021/094430 WO2021258924A1 (en) | 2020-06-23 | 2021-05-18 | Button-type pouch battery cell and button battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021208880.9U CN213184390U (en) | 2020-06-23 | 2020-06-23 | Button type soft package battery core and button battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213184390U true CN213184390U (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021208880.9U Active CN213184390U (en) | 2020-06-23 | 2020-06-23 | Button type soft package battery core and button battery |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN213184390U (en) |
| WO (1) | WO2021258924A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021258924A1 (en) * | 2020-06-23 | 2021-12-30 | 曙鹏科技（深圳）有限公司 | Button-type pouch battery cell and button battery |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115764003B (en) * | 2022-10-11 | 2023-07-21 | 贵州梅岭电源有限公司 | Zinc-silver accumulator used for multiple times under microgravity environment |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010061998A (en) * | 2008-09-04 | 2010-03-18 | Murata Mfg Co Ltd | Battery, and battery pack |
| CN202917574U (en) * | 2012-11-15 | 2013-05-01 | 佛山市顺德区顺达电脑厂有限公司 | Short-circuit protection structure for button cell |
| CN204809335U (en) * | 2015-06-25 | 2015-11-25 | 中信国安盟固利动力科技有限公司 | Soft -packing power lithium ion battery hem structure |
| CN109962284A (en) * | 2017-12-22 | 2019-07-02 | 宁德新能源科技有限公司 | The manufacturing method of electrochemical appliance and electrochemical appliance |
| CN210723171U (en) * | 2019-11-27 | 2020-06-09 | 新余赣锋电子有限公司 | Battery containing soft package battery core |
| CN111193056A (en) * | 2019-11-29 | 2020-05-22 | 惠州市金合电子有限公司 | Disc type battery and preparation method thereof |
| CN211907535U (en) * | 2020-05-22 | 2020-11-10 | 深圳聚锂能源有限公司 | Soft package button type lithium battery assembly with protection lantern ring |
| CN213184390U (en) * | 2020-06-23 | 2021-05-11 | 曙鹏科技（深圳）有限公司 | Button type soft package battery core and button battery |
| CN213124684U (en) * | 2020-09-16 | 2021-05-04 | 曙鹏科技（深圳）有限公司 | Soft package button cell |
-
2020
- 2020-06-23 CN CN202021208880.9U patent/CN213184390U/en active Active
-
2021
- 2021-05-18 WO PCT/CN2021/094430 patent/WO2021258924A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021258924A1 (en) * | 2020-06-23 | 2021-12-30 | 曙鹏科技（深圳）有限公司 | Button-type pouch battery cell and button battery |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021258924A1 (en) | 2021-12-30 |
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