CN111211358A - Multi-lug quick-charging cylindrical lithium battery - Google Patents
Multi-lug quick-charging cylindrical lithium battery Download PDFInfo
- Publication number
- CN111211358A CN111211358A CN202010190211.1A CN202010190211A CN111211358A CN 111211358 A CN111211358 A CN 111211358A CN 202010190211 A CN202010190211 A CN 202010190211A CN 111211358 A CN111211358 A CN 111211358A
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- Prior art keywords
- positive
- negative
- plate
- tab
- lithium battery
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 15
- YWXYYJSYQOXTPL-SLPGGIOYSA-N Isosorbide mononitrate Chemical compound [O-][N+](=O)O[C@@H]1CO[C@@H]2[C@@H](O)CO[C@@H]21 YWXYYJSYQOXTPL-SLPGGIOYSA-N 0.000 claims abstract description 14
- 238000003698 laser cutting Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000031700 light absorption Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 2
- 210000000188 Diaphragm Anatomy 0.000 description 15
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive Effects 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- -1 nickel-cadmium Chemical compound 0.000 description 2
- GELKBWJHTRAYNV-UHFFFAOYSA-K Lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N Silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—BASIC 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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- H—ELECTRICITY
- H01—BASIC 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
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
-
- H—ELECTRICITY
- H01—BASIC 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
-
- H—ELECTRICITY
- H01—BASIC 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
- H01M50/531—Electrode connections inside a battery casing
-
- 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 invention discloses a multi-lug quick-charging cylindrical lithium battery, and belongs to the technical field of quick charging of lithium batteries. The multi-tab quick-charging lithium battery comprises a shell, a positive plate and a negative plate, wherein the surfaces of the positive plate and the negative plate are respectively brushed with a positive material and a negative material, the positive plate and the negative plate are folded and rolled after being unfolded, and the shell is placed after the rolling is finished; a plurality of positive lugs are sequentially arranged on the edge openings of the positive plates, and the positive lugs are overlapped at the same position after being rolled; the lower opening edge of the negative plate is sequentially provided with a plurality of negative electrode lugs, and the negative electrode lugs are overlapped at the same position after being rolled by the negative plate. This lithium cell is filled soon to many utmost points ear compares with traditional welding unipolar ear lithium cell, overlaps after a plurality of utmost points ear book is made, and a plurality of utmost points ear with positive plate or negative pole piece are the section bar as an organic whole and pass through laser cutting shaping, reduce resistance in the charging process, improve charge efficiency greatly to the realization is filled soon.
Description
Technical Field
The invention relates to the technical field of lithium battery quick charging, in particular to a multi-tab quick charging cylindrical lithium battery.
Background
Lithium batteries are used as a driving power source for portable electronic devices such as video cameras, mobile phones, or notebook computers. Among them, rechargeable lithium secondary batteries have an energy density per unit weight three times or more higher than that of lead-acid batteries, nickel-cadmium batteries, nickel-hydrogen batteries, or nickel-zinc batteries, and have a higher charging speed than them.
The conventional lithium battery has the technical scheme that the lugs are independently welded on an aluminum sheet or a copper sheet coated with a positive electrode material or a negative electrode material, only one positive lug and only one negative lug are respectively arranged, and in the actual charging process, the welding single-lug is large in resistance, long in charging time and incapable of realizing quick charging.
Disclosure of Invention
The invention aims to provide a multi-lug quick-charging cylindrical lithium battery, which solves the problems of large resistance and long charging time of the conventional lug welded unipolar lithium battery.
In order to solve the technical problem, the invention provides a multi-tab quick-charging cylindrical lithium battery which comprises a shell, a positive plate and a negative plate, wherein the surfaces of the positive plate and the negative plate are respectively brushed with a positive material and a negative material;
a plurality of positive lugs are sequentially arranged on the edge openings of the positive plates, and the positive lugs are overlapped at the same position after being rolled;
a plurality of negative electrode lugs are sequentially arranged at the lower opening edge of the negative electrode plate, and the negative electrode lugs are overlapped at the same position after the negative electrode plate is rolled;
and a first diaphragm and a second diaphragm are respectively arranged on the inner side and the outer side of the negative plate, and the first diaphragm and the second diaphragm are simultaneously rolled with the positive plate and the negative plate.
Optionally, the distance between the positive lugs gradually increases from the rolling starting end.
Optionally, the positive plate and the positive lug are integrated into an aluminum profile, and the positive lug is formed by laser cutting.
Optionally, a positive light-absorbing film is brushed on one side, close to the positive lug, of the positive plate, so that damage to the positive plate in the laser cutting process is prevented.
Optionally, the distance between the negative electrode tabs gradually increases from the winding start end.
Optionally, the negative electrode tab and the negative electrode tab are made of an integrated copper profile, and the negative electrode tab is formed by laser cutting.
Optionally, a negative electrode light-absorbing film is brushed on one side, close to the negative electrode tab, of the negative electrode piece, so that damage to the negative electrode piece in the laser cutting process is prevented.
Optionally, both ends of the housing are fixedly connected with an upper insulation sheet and a lower insulation sheet; the positive tab and the negative tab respectively penetrate through the upper insulation sheet and the tab slot on the lower insulation sheet.
Optionally, the top end of the shell is covered with a cap, the cap is composed of a top cover and a power-off explosion-proof structure, and the positive lug is electrically connected with the power-off explosion-proof structure.
Optionally, the outer shell is a steel shell or an aluminum shell.
The invention provides a multi-tab quick-charging cylindrical lithium battery which comprises a shell, a positive plate and a negative plate, wherein positive materials and negative materials are respectively brushed on the surfaces of the positive plate and the negative plate, the positive plate and the negative plate are folded and rolled after being unfolded, and the shell is placed after the rolling is finished; a plurality of positive lugs are sequentially arranged on the edge openings of the positive plates, and the positive lugs are overlapped at the same position after being rolled; a plurality of negative electrode lugs are sequentially arranged at the lower opening edge of the negative electrode plate, and the negative electrode lugs are overlapped at the same position after the negative electrode plate is rolled; and a first diaphragm and a second diaphragm are respectively arranged on the inner side and the outer side of the negative plate, and the first diaphragm and the second diaphragm are simultaneously rolled with the positive plate and the negative plate. This lithium cell is filled soon to many utmost points ear compares with traditional welding unipolar ear lithium cell, overlaps after a plurality of utmost points ear book is made, and a plurality of utmost points ear with positive plate or negative pole piece are the section bar as an organic whole and pass through laser cutting shaping, reduce resistance in the charging process, improve charge efficiency greatly to the realization is filled soon.
Drawings
Fig. 1 is an exploded view of a multi-tab quick-charging cylindrical lithium battery provided by the present invention;
FIG. 2 is an expanded view of a multi-tab quick-charging cylindrical lithium battery positive plate provided by the present invention;
FIG. 3 is a development view of a multi-tab quick-charging cylindrical lithium battery negative electrode tab according to the present invention;
fig. 4 is a schematic structural diagram of a multi-tab quick-charging cylindrical lithium battery cap provided by the invention.
Detailed Description
The multi-tab quick-charging cylindrical lithium battery provided by the invention is further described in detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
The invention provides a multi-tab quick-charging cylindrical lithium battery, which comprises a shell 1, a positive plate 2 and a negative plate 3, wherein the shell 1 is a steel shell or an aluminum shell; the surfaces of the positive plate 2 and the negative plate 3 are respectively brushed with a positive material 23 and a negative material 33, the positive material and the negative material are stacked and rolled after being unfolded, and the positive material and the negative material are placed into the shell 1 after being rolled; the anode material 23 mainly comprises ternary materials (lithium nickelate, lithium cobaltate, lithium manganate, lithium iron phosphate and the like), a conductive agent and an adhesive, and the cathode material 33 mainly comprises graphite (silicon oxide, silicon carbide and the like can be properly added), the conductive agent and the adhesive; a first diaphragm 4 and a second diaphragm 5 are respectively arranged on the inner side and the outer side of the negative plate 3, and the first diaphragm 4 and the second diaphragm 5 are simultaneously rolled with the positive plate 2 and the negative plate 3; the first diaphragm 4 and the second diaphragm 5 are PE diaphragms, and have an insulating effect.
Specifically, as shown in fig. 2, a plurality of positive electrode tabs 21 are sequentially arranged on the upper edge of the positive electrode sheet 2, and the positive electrode tabs 21 are overlapped at the same position after the positive electrode sheet 2 is rolled; the distance between the positive lugs 21 is gradually increased from the rolling starting end; the positive plate 2 and the positive lugs 21 are integrated aluminum profiles, the positive lugs 21 are formed by laser cutting, and the resistance generated in the charging process of the plurality of integrally formed positive lugs 21 is smaller, so that the charging efficiency is higher; the side of the positive plate 2 close to the positive lug 21 is brushed with a positive light-absorbing film 22, so that the positive plate 2 is prevented from being damaged in the laser cutting process.
Specifically, as shown in fig. 3, a plurality of negative electrode tabs 31 are sequentially arranged at the lower opening edge of the negative electrode sheet 3, and the negative electrode tabs 31 are overlapped at the same position after the negative electrode sheet 3 is rolled; the distance between the negative electrode lugs 31 is gradually increased from the winding starting end; the negative electrode piece 3 and the negative electrode tab 31 are made of an integrated copper section, the negative electrode tab 31 is formed by laser cutting, and the resistance generated in the charging process of the plurality of integrally formed negative electrode tabs 31 is smaller, so that the charging efficiency is higher; negative pole piece 3 is close to one side brush of negative pole ear 31 has negative pole membrane 32 that absorbs light, prevents among the laser cutting process to negative pole piece 3 causes the damage.
Specifically, as shown in fig. 1 and 4, both ends of the housing 1 are fixedly connected with an upper insulation sheet 7 and a lower insulation sheet 8; the positive tab 21 and the negative tab 31 respectively penetrate through the tab slots on the upper insulation sheet 7 and the lower insulation sheet 8; the upper insulation sheet 7 and the lower insulation sheet 8 can isolate the positive electrode sheet 2 and the negative electrode sheet 3 from the housing 1; the top end of the shell 1 is covered with a cap 6, the cap 6 consists of a top cover 61 and a power-off explosion-proof structure 62, the positive tab 21 is electrically connected with the power-off explosion-proof structure 62, and the top cover 61 is used as the positive electrode of the multi-tab quick-charging lithium battery; the negative electrode tab 31 is electrically connected with the bottom of the shell 1, and the shell 1 is used as a negative electrode of the multi-tab quick-charging lithium battery.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (10)
1. A multi-tab quick-charging cylindrical lithium battery is characterized by comprising a shell (1), a positive plate (2) and a negative plate (3), wherein the surfaces of the positive plate (2) and the negative plate (3) are respectively brushed with a positive material (23) and a negative material (33), the positive plate and the negative plate are stacked and rolled after being unfolded, and the shell (1) is placed after the rolling is finished;
a plurality of positive lugs (21) are sequentially arranged on the upper edge of the positive plate (2), and the positive lugs (21) are overlapped at the same position after the positive plate (2) is rolled;
a plurality of negative electrode lugs (31) are sequentially arranged at the lower opening edge of the negative electrode sheet (3), and the negative electrode lugs (31) are overlapped at the same position after the negative electrode sheet (3) is rolled;
the negative pole piece (3) is provided with a first diaphragm (4) and a second diaphragm (5) on the inner side and the outer side respectively, and the first diaphragm (4) and the second diaphragm (5) are simultaneously rolled with the positive pole piece (2) and the negative pole piece (3).
2. The cylindrical lithium battery with multiple tabs and quick charge as claimed in claim 1, wherein the spacing between the positive tabs (21) is gradually increased from the start of winding.
3. The cylindrical lithium battery with multiple tabs and quick charge as claimed in claim 1, wherein the positive plate (2) and the positive tab (21) are an integral aluminum profile, and the positive tab (21) is formed by laser cutting.
4. The cylindrical lithium battery with the multiple tabs and the rapid charging function as claimed in claim 3, wherein a positive electrode light-absorbing film (22) is brushed on one side of the positive electrode plate (2) close to the positive electrode tab (21) to prevent the positive electrode plate (2) from being damaged in a laser cutting process.
5. The cylindrical lithium battery with multiple tabs and quick charge as claimed in claim 1, wherein the spacing between the negative tabs (31) is gradually increased from the beginning of the winding.
6. The cylindrical lithium battery with multiple tabs and quick charge as claimed in claim 1, wherein the negative electrode tab (3) and the negative electrode tab (31) are made of an integral copper profile, and the negative electrode tab (31) is formed by laser cutting.
7. The cylindrical lithium battery with multiple tabs and rapid charging as claimed in claim 6, wherein the negative electrode tab (3) is brushed with a negative electrode light absorption film (32) on the side close to the negative electrode tab (31) to prevent the negative electrode tab (3) from being damaged during laser cutting.
8. The cylindrical lithium battery with multiple tabs and quick charge as claimed in claim 1, wherein the upper insulating sheet (7) and the lower insulating sheet (8) are fixedly connected to both ends of the case (1); the positive tab (21) and the negative tab (31) respectively penetrate through the tab slots on the upper insulation sheet (7) and the lower insulation sheet (8).
9. The cylindrical lithium battery with multiple tabs and quick charge as claimed in claim 1, wherein the top end of the housing (1) is covered with a cap (6), the cap (6) is composed of a top cover (61) and a power-off explosion-proof structure (62), and the positive tab (21) is electrically connected with the power-off explosion-proof structure (62).
10. A multi-tab, quick-charging cylindrical lithium battery as claimed in claim 1, wherein the case (1) is a steel or aluminum case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190211.1A CN111211358A (en) | 2020-03-18 | 2020-03-18 | Multi-lug quick-charging cylindrical lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190211.1A CN111211358A (en) | 2020-03-18 | 2020-03-18 | Multi-lug quick-charging cylindrical lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111211358A true CN111211358A (en) | 2020-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010190211.1A Pending CN111211358A (en) | 2020-03-18 | 2020-03-18 | Multi-lug quick-charging cylindrical lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111211358A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952659A (en) * | 2020-08-21 | 2020-11-17 | 安瑞创新(厦门)能源有限公司 | Lithium iron phosphate battery |
| CN113270693A (en) * | 2021-05-17 | 2021-08-17 | 微宏动力系统（湖州）有限公司 | Full-tab pole piece and winding battery |
| CN113471638A (en) * | 2021-07-06 | 2021-10-01 | 山东汉格动力能源科技有限公司 | Novel super-high-rate large-cylinder polymer lithium ion battery for electronic cigarette |
| CN113921765A (en) * | 2021-09-29 | 2022-01-11 | 蜂巢能源科技有限公司 | Cylindrical lithium battery and preparation method thereof |
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2020
- 2020-03-18 CN CN202010190211.1A patent/CN111211358A/en active Pending
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| JP2011084755A (en) * | 2009-10-13 | 2011-04-28 | Kinotech Solar Energy Corp | Electrolyzer |
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| CN105811013A (en) * | 2016-04-01 | 2016-07-27 | 秦皇岛市芯驰光电科技有限公司 | High-rate anti-explosion lithium battery structure and fixing method for battery cell and steel shell |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111952659A (en) * | 2020-08-21 | 2020-11-17 | 安瑞创新(厦门)能源有限公司 | Lithium iron phosphate battery |
| CN113270693A (en) * | 2021-05-17 | 2021-08-17 | 微宏动力系统（湖州）有限公司 | Full-tab pole piece and winding battery |
| CN113471638A (en) * | 2021-07-06 | 2021-10-01 | 山东汉格动力能源科技有限公司 | Novel super-high-rate large-cylinder polymer lithium ion battery for electronic cigarette |
| CN113921765A (en) * | 2021-09-29 | 2022-01-11 | 蜂巢能源科技有限公司 | Cylindrical lithium battery and preparation method thereof |
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Application publication date: 20200529 |