CN201616479U - Multi-electrode lug lithium ion battery - Google Patents
Multi-electrode lug lithium ion battery Download PDFInfo
- Publication number
- CN201616479U CN201616479U CN2009202581066U CN200920258106U CN201616479U CN 201616479 U CN201616479 U CN 201616479U CN 2009202581066 U CN2009202581066 U CN 2009202581066U CN 200920258106 U CN200920258106 U CN 200920258106U CN 201616479 U CN201616479 U CN 201616479U
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- China
- Prior art keywords
- negative electrode
- lithium ion
- battery
- ion battery
- lugs
- Prior art date
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- Expired - Fee Related
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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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- Connection Of Batteries Or Terminals (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model belongs to the field of lithium ion battery manufacture, and particularly relates to a multi-electrode lug lithium ion battery which improves the discharge multiplying power and safety performance of a lithium ion battery. The multi-electrode lug lithium ion battery comprises a battery casing and a positive electrode plate and a negative electrode plate which are arranged in the battery casing; at least three positive electrode lugs are arranged on identical side of the positive electrode plate; at least three negative electrode lugs are arranged on identical side of the negative electrode plate; the positive electrode plate and the positive electrode lugs are made of aluminum foil, and the negative electrode plate and the negative electrode lugs are made of copper foil; the positive electrode plate and the positive electrode lugs are formed into a whole body; and the negative electrode plate and the negative electrode lugs are formed into a whole body; the quantity of the positive electrode lugs is four; the quantity of the negative electrode lugs is four; the quantity of the positive electrode lugs is five; and the quantity of the negative electrode lugs is five. The multi-electrode lug lithium ion battery has the advantages that the structure is reasonable, the internal resistance of the battery is reduced, the charge-discharge multiplying power of the battery is improved, and simultaneously the safety of the battery is improved.
Description
Technical field
The utility model belongs to lithium ion battery and makes the field, is specifically related to a kind of discharge-rate of lithium ion battery and multi-pole lug lithium ion battery of security performance of improving.
Background technology
Energy crisis, shortage of resources, environmental pollution are the severe challenges that human survival faces, and seeking secondary energy sources clean, renewable, resource-conserving is the task of realizing that human social needs to be resolved hurrily.Lithium ion battery have operating voltage height, energy density big, have extended cycle life, self-discharge rate is little, the advantage of environmental protection, becomes the trend of secondary cell development.The power supply that has been widely used in portable cells such as wireless telecommunications, digital camera, notebook computer, and aspect the electrodynamic source of vehicle using motor, electric bicycle, battery-operated motor cycle, mine lamp, electric tool, hybrid vehicle, pure electric vehicle, having broad application prospects.
Lithium ion battery has the output voltage height, specific energy height, discharging voltage balance, the characteristics that have extended cycle life.So lithium ion battery has been widely used in notebook computer, digital camera, field of mobile phones.The present developing direction of lithium ion battery is to the development of motive use type, promptly requires it to have the power of better high rate during charging-discharging and Geng Gao.The high rate during charging-discharging that improves battery will reduce the internal resistance of battery, because under the same voltage, the internal resistance of resistance is low more, the discharging current that can reach is big more, on the other hand, the high internal resistance meeting of battery makes the interior sharply rising of the temperature short time of inside battery, reduce the fail safe of battery, performance to battery itself impacts simultaneously, moreover because the internal resistance of battery is big, cause the ohm voltage drop of battery to become big, can must drop to cut-ff voltage sooner during battery discharge, battery capacity can not be fully utilized.The internal resistance of cell comprises the interface impedance of positive plate impedance, negative plate impedance, positive pole ear impedance, negative lug impedance, electrolyte impedance and pole piece and electrolyte promptly together with the resistance sum between all substances of both positive and negative polarity.As under the situation, the performance of improving battery all is that the performance that aligns negative electrode active material is improved, and seldom has to improve to reach at the manufacturing process of battery to improve battery performance.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and a kind of simple in structure, raising battery discharge multiplying power is provided, and guarantees the multi-pole lug lithium ion battery of its fail safe.
The object of the present invention is achieved like this: comprise battery container and interior set positive plate and negative plate, the same side of positive plate is provided with and is at least three anode ears, and the same side of negative plate is provided with and is at least three negative electrode lugs.Described positive plate and anode ear material are aluminium foil, and described negative plate and negative electrode lug material are Copper Foil.Described positive plate and anode ear are as a whole; Described negative plate and negative electrode lug are as a whole.Described anode ear is four; Described negative electrode lug is four.Described anode ear is five; Described negative electrode lug is five.
The utlity model has following advantage:
1, the utility model simplicity of design, rational in infrastructure, effect obviously, be fit to use of large-scale production,
2, the utility model structure is optimized, and has reduced the internal resistance of battery, has improved the charge-discharge magnification of battery, has improved its fail safe simultaneously.
Description of drawings
Fig. 1 is the structural representation of three anode ears of the utility model.
Fig. 2 is the structural representation of three negative electrode lugs of the utility model.
Fig. 3 is the structural representation of four anode ears of the utility model.
Fig. 4 is the structural representation of four negative electrode lugs of the utility model.
Fig. 5 is the structural representation of five anode ears of the utility model.
Fig. 6 is the structural representation of five negative electrode lugs of the utility model.
Embodiment
Shown in Fig. 1,2,3,4,5,6, the utility model comprises battery container and interior set positive plate 1 and negative plate 2, and the same side of positive plate 1 is provided with and is at least three anode ears 3, and the same side of negative plate 2 is provided with and is at least three negative electrode lugs 4.Described positive plate 1 and anode ear 3 materials are aluminium foil, and described negative plate 2 and negative electrode lug 4 materials are Copper Foil.Described positive plate 1 and anode ear 3 are as a whole; Described negative plate 2 and negative electrode lug 4 are as a whole.Described anode ear 3 is four; Described negative electrode lug 4 is four.Described anode ear 3 is five; Described negative electrode lug 4 is five.
The positive active material of battery is LiMnO in the utility model
4, LiFePO
4Or a kind of in the ternary material; Plus plate current-collecting body is an aluminium foil, and its thickness is 20 μ m; Positive pole ear is to be washed into the aluminium foil that requires shape, and thickness is 20mm; The lug of described positive plate adopts the aluminium foil that is washed into the aluminium pole ears appearance, is arranged in pole piece one side respectively; Negative electrode active material is a graphite-like carbon material; Binding agent is the water-based polyethylene glycol oxide; Negative current collector is a Copper Foil, and its thickness is 10 μ m, and same, negative lug is to be washed into the Copper Foil that requires shape, and thickness is 10 μ m; The same Copper Foil that is washed into the aluminium pole ears appearance that adopts of described negative plate is arranged in pole piece one side respectively.More traditional both positive and negative polarity pole piece it is advantageous that the internal resistance that can reduce battery behind the whole row of the pole piece one side lug, improves its discharge-rate, and its security performance is got a promotion.The manufacture method of above-mentioned lithium ion battery comprises as step: a. is mixed into required anode and cathode slurry with conductive agent, adhesive respectively with the both positive and negative polarity active material; B. anode and cathode slurry is coated in respectively and is processed into required film on the desired collector; C. the film roll-in being processed into the thickness of requirement, going out the pole piece that requires as figure on streamline, mainly is that the collector that will not be coated with active material is washed into the lug shape.Above-mentioned lithium-ion electric pool process is fit to the big capacity of monomer, and high-multiplying power discharge can effectively reduce the internal resistance of cell, disperse too concentrated current density, can effectively lower concentration polarization and ohmic polarization, reduce cell integrated caloric value, increase substantially the high rate performance of battery.
Claims (5)
1. multi-pole lug lithium ion battery, comprise battery container and interior set positive plate (1) thereof and negative plate (2), it is characterized in that: the same side of positive plate (1) is provided with and is at least three anode ears (3), and the same side of negative plate (2) is provided with and is at least three negative electrode lugs (4).
2. multi-pole lug lithium ion battery according to claim 1 is characterized in that: described positive plate (1) and anode ear (3) material are aluminium foil, and described negative plate (2) and negative electrode lug (4) material are Copper Foil.
3. multi-pole lug lithium ion battery according to claim 1 is characterized in that: described positive plate (1) and anode ear (3) are as a whole; Described negative plate (2) and negative electrode lug (4) are as a whole.
4. multi-pole lug lithium ion battery according to claim 1 is characterized in that: described anode ear (3) is four; Described negative electrode lug (4) is four.
5. multi-pole lug lithium ion battery according to claim 1 is characterized in that: described anode ear (3) is five; Described negative electrode lug (4) is five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202581066U CN201616479U (en) | 2009-11-16 | 2009-11-16 | Multi-electrode lug lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202581066U CN201616479U (en) | 2009-11-16 | 2009-11-16 | Multi-electrode lug lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201616479U true CN201616479U (en) | 2010-10-27 |
Family
ID=43002842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202581066U Expired - Fee Related CN201616479U (en) | 2009-11-16 | 2009-11-16 | Multi-electrode lug lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201616479U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227031A (en) * | 2011-05-20 | 2011-10-26 | 无锡市明杨电池有限公司 | Lithium ion battery with high-rate discharge characteristic |
| CN109478692A (en) * | 2016-12-21 | 2019-03-15 | 株式会社Lg化学 | Electrode assembly including being coupled to the contact conductor of its long side |
| CN111786010A (en) * | 2020-07-23 | 2020-10-16 | 福建巨电新能源股份有限公司 | Multiplying power type lithium ion battery |
-
2009
- 2009-11-16 CN CN2009202581066U patent/CN201616479U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227031A (en) * | 2011-05-20 | 2011-10-26 | 无锡市明杨电池有限公司 | Lithium ion battery with high-rate discharge characteristic |
| CN109478692A (en) * | 2016-12-21 | 2019-03-15 | 株式会社Lg化学 | Electrode assembly including being coupled to the contact conductor of its long side |
| US11069943B2 (en) | 2016-12-21 | 2021-07-20 | Lg Chem, Ltd. | Electrode assembly comprising electrode lead coupled to long-side area |
| CN111786010A (en) * | 2020-07-23 | 2020-10-16 | 福建巨电新能源股份有限公司 | Multiplying power type lithium ion battery |
| CN111786010B (en) * | 2020-07-23 | 2024-03-08 | 福建巨电新能源股份有限公司 | Multiplying power type lithium ion battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20171116 |