CN210224192U - Multi-pole pair cylindrical battery - Google Patents
Multi-pole pair cylindrical battery Download PDFInfo
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- CN210224192U CN210224192U CN201920885783.4U CN201920885783U CN210224192U CN 210224192 U CN210224192 U CN 210224192U CN 201920885783 U CN201920885783 U CN 201920885783U CN 210224192 U CN210224192 U CN 210224192U
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- battery
- pole piece
- positive
- negative pole
- negative
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- 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 multipolar cylinder battery of pair, roll up the core including the battery, the battery rolls up the core and comprises at least a pair of above electrode couple, the electrode couple comprises positive pole piece and negative pole piece. The utility model discloses a multipolar structure to cylinder battery roll core, the impedance is low, and the battery charge of formation is discharged efficiently for when the battery circulation, the battery internal resistance reduces, and battery rate charge-discharge is effectual, has the advantage that reduces the battery internal resistance, improves battery rate charge-discharge circulation.
Description
Technical Field
The utility model relates to the technical field of batteries, specifically a multipolar cylinder battery to.
Background
The existing cylindrical battery roll core only has one pair of pole pair groups, namely only one positive pole piece and one negative pole piece; the cylindrical battery has high capacity and high-rate charge and discharge, and the battery has high impedance, so that the internal resistance of the battery is high, and the rate charge and discharge effect is poor, thereby having great influence on the high-rate charge and discharge cycle performance of the battery and being not beneficial to the use of the battery.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multipolar cylinder battery to the battery that proposes in solving above-mentioned background art hinders greatly, and the battery internal resistance is big, and the charging and discharging is inefficient, and the battery multiplying power is filled, the poor problem of effect of discharging.
In order to achieve the above object, the utility model provides a following technical scheme:
the multi-electrode pair cylindrical battery comprises a battery roll core, wherein the battery roll core is composed of at least more than one pair of electrode pairs, and each electrode pair is composed of a positive electrode piece and a negative electrode piece.
Preferably, the positive electrode piece and the negative electrode piece respectively comprise a current collector, an active substance and a tab, and the active substance comprises a positive active substance and a negative active substance.
Preferably, a diaphragm is arranged between the positive pole piece and the negative pole piece, the positive pole piece is connected with a positive pole lug, and the negative pole piece is connected with a negative pole lug.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a multipolar structure to cylinder battery roll core, the impedance is low, and the battery charge of formation is discharged efficiently for when the battery circulation, the battery internal resistance reduces, and battery rate charge-discharge is effectual, has the advantage that reduces the battery internal resistance, improves battery rate charge-discharge circulation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, and in the drawings:
FIG. 1 is a sectional view of the structure of the present invention;
FIG. 2 is a perspective view of the present invention;
fig. 3 is a schematic structural view of two positive poles and one negative pole pieces in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a positive pole piece and a negative pole piece in embodiment 2 of the present invention;
fig. 5 is a schematic structural view of two positive poles and two negative poles of a pole piece in embodiment 3 of the present invention;
in the figure: 1 battery roll core, 2 positive pole pieces, 3 positive pole lugs, 4 diaphragms, 5 negative pole pieces and 6 negative pole lugs.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, a multi-electrode pair cylindrical battery includes a battery roll core 1, the battery roll core 1 is composed of at least one pair of electrode pairs, and the electrode pair is composed of a positive electrode plate 2 and a negative electrode plate 5.
The positive pole piece 2 or the negative pole piece 5 comprises a current collector, active substances and a pole lug, wherein the active substances comprise positive active substances and negative active substances; the current collector adopts metal foil, and the metal foil comprises aluminum foil, copper foil, aluminum-nickel alloy and the like.
A diaphragm 4 is arranged between the positive pole piece 2 and the negative pole piece 5, the positive pole piece 2 is connected with a positive pole lug 3, and the negative pole piece 5 is connected with a negative pole lug 6; the tail part of the diaphragm 4 is coated on the positive pole piece 2 and the negative pole piece 5, and the positive pole lug 3 and the negative pole lug 6 are respectively arranged on two sides of the battery roll core 1.
The utility model discloses for the monopole to the battery, the battery of same capacity, positive negative pole piece and diaphragm 4 are shorter, can not let positive negative pole piece puncture diaphragm 4 when actual processing carries out roll core production.
The utility model takes the battery roll core 1 as a pair of half pole pair group as an example, and is specifically shown in the embodiment 1-2;
example 1
Referring to fig. 3, two positive and one negative pole pieces are provided, that is, two positive pole pieces 2 are provided, one negative pole piece 5 is provided, the negative pole piece 5 is located on the outer side of the two positive pole pieces 2, the positive pole piece 2 and the negative pole piece 5 are separated by a diaphragm 4, then, a roll core work is performed, in the roll core work process, the two positive pole pieces 2 are located in the middle of the battery roll core 1, the negative pole piece 5 is far away from the middle of the battery roll core 1, a negative pole lug 6 is led out from the end of the negative pole piece 5, a positive pole lug 3 is led out from any position of the positive pole piece 5, after the positive pole piece 2, the diaphragm 4 and the negative pole piece 5 are wound to form a roll core, the positive pole lug 3 and the negative pole; at the moment, the positive pole piece 2 and the negative pole piece 5 are overlapped together, and finally, the overlapped part in the winding core is compacted.
Example 2
Referring to fig. 4, a positive pole piece and a negative pole piece are arranged, that is, the positive pole piece 2 is provided with one piece, the negative pole piece 5 is provided with two pieces, the two negative pole pieces 5 are located on the outer side of the positive pole piece 2, in the process of winding the core, the positive pole piece 2 is wound in the middle of the battery winding core 1 in advance, the two negative pole pieces 5 are wound on the outer side of the battery winding core 1 away from the middle of the battery winding core 1, the negative pole lug 6 is led out from the end of the negative pole piece 5, the positive pole lug 3 is led out from any position of the positive pole piece 2, and finally, the overlapped part in the winding.
The battery roll core 1 of the utility model is a two-pair electrode pair group, which is shown in embodiment 3;
example 3
Referring to fig. 5, two positive electrodes and two negative electrodes of the pole piece are provided, that is, two positive electrode pieces 2 are provided, two negative electrode pieces 5 are provided, the positive electrode pieces 2 are located on two sides of the negative electrode pieces 5, the negative electrode tab 6 is led out from the end of the negative electrode piece 5, the positive electrode tab 3 is led out from any position of the positive electrode piece 2, and finally, the overlapped part in the winding core is compacted.
The utility model adopts more than one electrode pair group to form, namely more than two pole pieces, and each pair of pole pair group comprises a positive pole piece 2, a negative pole piece 5, a diaphragm 4 and a corresponding pole ear; the battery roll core 1 formed by the multi-pole pairs has low impedance, and the formed battery has high charging and discharging efficiency, so that the internal resistance of the battery is reduced when the battery is circulated, the multiplying power charging and discharging effect of the battery is good, and the battery roll core has the advantages of reducing the internal resistance of the battery and improving the multiplying power charging and discharging circulation of the battery.
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 should be included in the present invention.
Claims (3)
1. The utility model provides a multipolar pair cylinder battery, includes battery roll core (1), its characterized in that, battery roll core (1) comprises more than at least a pair of electrode pair, the electrode pair comprises positive pole piece (2) and negative pole piece (5).
2. The cylindrical battery of claim 1, wherein the positive electrode plate (2) and the negative electrode plate (5) are each composed of a current collector, an active material and a tab, and the active material includes a positive active material and a negative active material.
3. The cylindrical battery with multiple poles in pair according to claim 1, wherein a separator (4) is arranged between the positive pole piece (2) and the negative pole piece (5), the positive pole piece (2) is connected with the positive pole lug (3), and the negative pole piece (5) is connected with the negative pole lug (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885783.4U CN210224192U (en) | 2019-06-13 | 2019-06-13 | Multi-pole pair cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920885783.4U CN210224192U (en) | 2019-06-13 | 2019-06-13 | Multi-pole pair cylindrical battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210224192U true CN210224192U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920885783.4U Active CN210224192U (en) | 2019-06-13 | 2019-06-13 | Multi-pole pair cylindrical battery |
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| Country | Link |
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| CN (1) | CN210224192U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678535A (en) * | 2020-12-24 | 2022-06-28 | 比亚迪股份有限公司 | Lithium battery structure and battery pack |
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2019
- 2019-06-13 CN CN201920885783.4U patent/CN210224192U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114678535A (en) * | 2020-12-24 | 2022-06-28 | 比亚迪股份有限公司 | Lithium battery structure and battery pack |
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