CN105470453A - Cylindrical lithium ion battery with low internal resistance - Google Patents
Cylindrical lithium ion battery with low internal resistance Download PDFInfo
- Publication number
- CN105470453A CN105470453A CN201511012984.6A CN201511012984A CN105470453A CN 105470453 A CN105470453 A CN 105470453A CN 201511012984 A CN201511012984 A CN 201511012984A CN 105470453 A CN105470453 A CN 105470453A
- Authority
- CN
- China
- Prior art keywords
- conductive film
- cathode conductive
- lithium ion
- internal resistance
- white
- 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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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
-
- 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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/78—Shapes other than plane or cylindrical, e.g. helical
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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
Abstract
The invention discloses a cylindrical lithium ion battery with low internal resistance. The cylindrical lithium ion battery comprises a battery shell and an electrode plate, wherein the electrode plate is correspondingly connected with the battery shell, comprises a positive electrode plate and a negative electrode plate and is composed of an electrode substrate and an electrode coating, one end of the electrode substrate is bent to form a vertical empty region, the installation directions of the positive electrode plate and the negative electrode plate are opposite, and the positive electrode plate and the negative electrode plate are wound to form a cylindrical shape after arranging a diaphragm between the positive electrode plate and the negative electrode plate. The cylindrical lithium ion battery with the low internal resistance, disclosed by the invention, is simple in structure, the process is convenient to implement, the internal resistance and the thermal resistance of the battery can be substantially reduced, and the problems of electrode plate coating shedding occurring, difficulty in electrolyte injection and the like also can be prevented.
Description
Technical field
The invention belongs to field of lithium ion battery, particularly relate to a kind of column lithium ion battery of low internal resistance.
Background technology
The anode electrode sheet of column lithium ion battery and negative electricity pole piece are all be arranged on inside battery case by coiling and molding.The electrode slice lead-out mode of current commonplace employing is, the anode electrode sheet of battery is through the positive electrode cap that the very little conducting strip of sectional area is connected to battery, and the conducting strip being through sectional area very little with negative electricity pole piece of battery is welded on the shell of battery.Because the sectional area of conducting strip is limited, this is by larger for the internal resistance directly having influence on battery, and the heat derivation resistance that battery electrode sheet produces is also larger.The method at present also having some batteries to take electrode slice end face weld, attempts to solve the above-mentioned internal resistance of cell and heat dissipation problem, but occurs again electrode slice coating shedding unavoidably and the problem such as injecting electrolytic solution is difficult.Therefore, need to design a kind of column lithium ion battery that significantly can reduce the internal resistance of cell and thermal resistance.
Summary of the invention
Instant invention overcomes defect of the prior art, a kind of column lithium ion battery of low internal resistance is provided.
The present invention is realized by following proposal:
A column lithium ion battery for low internal resistance, comprise battery case and the corresponding electrode slice is connected with it, described electrode slice comprises anode electrode sheet and negative electricity pole piece, described electrode slice by electrode base sheet-with electrode coating-composition;
Described electrode base sheet-wherein one end bending degree formed vertical stay white area-, described anode electrode sheet is contrary with the installation direction of negative electricity pole piece, and it is cylindrical to carry out winding in the middle of anode electrode sheet and negative electricity pole piece after cushioning barrier film;
The staying of white and negative electricity pole piece of staying of described anode electrode sheet whitely lays respectively on described columniform two end faces, the part of anode electrode sheet is stayed white and part that is negative electricity pole piece to stay and is whitely formed positive plate respectively to direction, center of circle bending ° and stay white end face and negative plate to stay white end face, one end and the positive plate of cathode conductive film stay that the solder joint of white end face is corresponding to be welded, and the other end of cathode conductive film is welded on anode electrode cap;
One end and the negative plate of described cathode conductive film stay that the solder joint of white end face is corresponding to be welded, and the other end of described cathode conductive film is welded on negative electricity polar cap.
Described cathode conductive film and cathode conductive film are made up of conductive metal sheet.
Insulated enclosure circle is provided with in the outside of described cathode conductive film and cathode conductive film.
Beneficial effect of the present invention is:
The column lithium ion battery structure of a kind of low internal resistance of the present invention is simple, and process implementing is convenient, both can significantly reduce the internal resistance of cell and thermal resistance, also can avoid occurring the problem such as electrode slice coating shedding and injecting electrolytic solution difficulty.
Accompanying drawing explanation
Fig. 1 is the cross section view of the electrode slice of the column lithium ion battery of a kind of low internal resistance of the present invention;
Fig. 2 is the partial cross sectional views of the column lithium ion battery inside of a kind of low internal resistance of the present invention;
The stereogram of Fig. 3 Fig. 2;
Fig. 4 is the cross section view of the column lithium ion battery of a kind of low internal resistance of the present invention.
In figure: 1. anode electrode sheet; Electrode coating; 2. negative electricity pole piece; 3. cathode conductive film; 4. cathode conductive film; 5. positive plate stays white end face; 6. negative plate stays white end face; 7. anode electrode cap; 8. negative electricity polar cap; 9. solder joint; 10. insulated enclosure circle; 11. battery cases; 1-1. electrode base sheet; 1-2. stays white; 1-3.
Embodiment
Below in conjunction with Fig. 1 to Fig. 4, the execution mode of optimization of the present invention is further illustrated:
A column lithium ion battery for low internal resistance, comprise battery case 11 and the corresponding electrode slice be connected with it, described electrode slice comprises anode electrode sheet 1 and negative electricity pole piece 2, and described electrode slice forms by electrode base sheet 1-1 and electrode coating 1-3;
Wherein one end bending 90 degree of described electrode base sheet 1-1 is formed vertical stays white area 1-2, and described anode electrode sheet 1 is contrary with the installation direction of negative electricity pole piece 2, and it is cylindrical to carry out winding after anode electrode sheet 1 and negative electricity pole piece 2 middle cushioning barrier film; But negative electricity pole piece electrode base sheet identical from anode electrode chip architecture is different with coating material.
The staying of white and negative electricity pole piece 2 of staying of described anode electrode sheet 1 whitely lays respectively on described columniform two end faces, the part of anode electrode sheet 1 is stayed white and part that is negative electricity pole piece 2 to stay and is whitely formed positive plate respectively to direction, center of circle bending 90 ° and stay white end face 5 and negative plate to stay white end face 6, one end and the positive plate of cathode conductive film 3 stay that the solder joint 9 of white end face 5 is corresponding to be welded, and the other end of cathode conductive film 3 is welded on anode electrode cap 7; By extruding, the part of anode electrode sheet and negative electricity pole piece is stayed white to direction, center of circle bending 90 degree.
One end and the negative plate of described cathode conductive film 4 stay that the solder joint of white end face 5 is corresponding to be welded, and the other end of described cathode conductive film 4 is welded on negative electricity polar cap 8.
Described cathode conductive film 3 and cathode conductive film 4 are made up of conductive metal sheet.
Insulated enclosure circle 10 is provided with in the outside of described cathode conductive film 3 and cathode conductive film 4.
The column lithium ion battery structure of a kind of low internal resistance of the present invention is simple, and process implementing is convenient, both can significantly reduce the internal resistance of cell and thermal resistance, also can avoid occurring the problem such as electrode slice coating shedding and injecting electrolytic solution difficulty.
Although done comparatively detailed elaboration to technical scheme of the present invention and enumerated; be to be understood that; to those skilled in the art; amendment is made to above-described embodiment or adopts equivalent replacement scheme; this is apparent to those skilled in the art; these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (3)
1. the column lithium ion battery of a low internal resistance, comprise battery case (11) and the corresponding electrode slice be connected with it, described electrode slice comprises anode electrode sheet (1) and negative electricity pole piece (2), it is characterized in that: described electrode slice is by electrode base sheet (1-1) and electrode coating (1-3) composition;
Wherein one end bending 90 degree formation of described electrode base sheet (1-1) are vertical stays white area (1-2), described anode electrode sheet (1) is contrary with the installation direction of negative electricity pole piece (2), and it is cylindrical to carry out winding in the middle of anode electrode sheet (1) and negative electricity pole piece (2) after cushioning barrier film;
The staying of white and negative electricity pole piece (2) of staying of described anode electrode sheet (1) whitely lays respectively on described columniform two end faces, the part of anode electrode sheet (1) is stayed white and part that is negative electricity pole piece (2) to stay and is whitely formed positive plate respectively to direction, center of circle bending 90 ° and stay white end face (5) and negative plate to stay white end face (6), one end and the positive plate of cathode conductive film (3) stay that the solder joint of white end face (5) (9) is corresponding to be welded, and the other end of cathode conductive film (3) is welded on anode electrode cap (7);
One end and the negative plate of described cathode conductive film (4) stay that the solder joint of white end face (5) is corresponding to be welded, and the other end of described cathode conductive film (4) is welded on negative electricity polar cap (8).
2. the column lithium ion battery of a kind of low internal resistance according to claim 1, is characterized in that: described cathode conductive film (3) and cathode conductive film (4) are made up of conductive metal sheet.
3. the column lithium ion battery of a kind of low internal resistance according to claim 1, is characterized in that: be provided with insulated enclosure circle (10) in the outside of described cathode conductive film (3) and cathode conductive film (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012984.6A CN105470453A (en) | 2015-12-31 | 2015-12-31 | Cylindrical lithium ion battery with low internal resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511012984.6A CN105470453A (en) | 2015-12-31 | 2015-12-31 | Cylindrical lithium ion battery with low internal resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105470453A true CN105470453A (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511012984.6A Pending CN105470453A (en) | 2015-12-31 | 2015-12-31 | Cylindrical lithium ion battery with low internal resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105470453A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411803A (en) * | 2018-12-05 | 2019-03-01 | 江苏塔菲尔新能源科技股份有限公司 | Battery cell and battery |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09161837A (en) * | 1995-12-06 | 1997-06-20 | Matsushita Electric Ind Co Ltd | Cylindrical battery |
| JP2000077052A (en) * | 1998-08-31 | 2000-03-14 | Matsushita Electric Ind Co Ltd | Intercell connecting structure |
| US20070166605A1 (en) * | 2006-01-13 | 2007-07-19 | Sony Corporation | Battery |
| WO2010139221A1 (en) * | 2009-05-31 | 2010-12-09 | Byd Company Limited | Lithium ion battery |
| CN202662698U (en) * | 2012-05-07 | 2013-01-09 | 宁德新能源科技有限公司 | Cylindrical lithium ion battery |
| CN202712329U (en) * | 2012-07-19 | 2013-01-30 | 徐敖奎 | Pole piece with tab |
| CN202817076U (en) * | 2012-10-15 | 2013-03-20 | 山西皇城相府中道能源有限公司 | Cylindrical lithium-ion power battery |
| CN203085703U (en) * | 2012-12-29 | 2013-07-24 | 惠州比亚迪电池有限公司 | Lithium ion battery |
-
2015
- 2015-12-31 CN CN201511012984.6A patent/CN105470453A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09161837A (en) * | 1995-12-06 | 1997-06-20 | Matsushita Electric Ind Co Ltd | Cylindrical battery |
| JP2000077052A (en) * | 1998-08-31 | 2000-03-14 | Matsushita Electric Ind Co Ltd | Intercell connecting structure |
| US20070166605A1 (en) * | 2006-01-13 | 2007-07-19 | Sony Corporation | Battery |
| WO2010139221A1 (en) * | 2009-05-31 | 2010-12-09 | Byd Company Limited | Lithium ion battery |
| CN202662698U (en) * | 2012-05-07 | 2013-01-09 | 宁德新能源科技有限公司 | Cylindrical lithium ion battery |
| CN202712329U (en) * | 2012-07-19 | 2013-01-30 | 徐敖奎 | Pole piece with tab |
| CN202817076U (en) * | 2012-10-15 | 2013-03-20 | 山西皇城相府中道能源有限公司 | Cylindrical lithium-ion power battery |
| CN203085703U (en) * | 2012-12-29 | 2013-07-24 | 惠州比亚迪电池有限公司 | Lithium ion battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411803A (en) * | 2018-12-05 | 2019-03-01 | 江苏塔菲尔新能源科技股份有限公司 | Battery cell and battery |
| CN109411803B (en) * | 2018-12-05 | 2022-05-13 | 宁德时代新能源科技股份有限公司 | Battery cell and battery |
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