CN202503077U - Battery core of orthohexagonal lithium ion battery - Google Patents
Battery core of orthohexagonal lithium ion battery Download PDFInfo
- Publication number
- CN202503077U CN202503077U CN2012200758792U CN201220075879U CN202503077U CN 202503077 U CN202503077 U CN 202503077U CN 2012200758792 U CN2012200758792 U CN 2012200758792U CN 201220075879 U CN201220075879 U CN 201220075879U CN 202503077 U CN202503077 U CN 202503077U
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- orthohexagonal
- thickness
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- lithium ion
- active material
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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
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Abstract
The utility model discloses a battery core of an orthohexagonal lithium ion battery. An anode is formed by an anode active substance single-layered or double-layered coating, an aluminum foil anode current collector and a nickel belt anode lug; anode active substances are coated on the current collector in a single-layered or double-layered manner to form the anode active substance coating; and the lug is welded at a reserved blank place of the aluminum foil current collector through ultrasonic waves or laser. A cathode is formed by a cathode active substance single-layered or double-layered coating, a copper foil anode current collector and a nickel belt cathode lug; cathode active substances are coated on the current collector in the single-layered or double-layered manner to form the cathode active substance coating; and the cathode lug is welded at a reserved blank place of the copper foil current collector through the ultrasonic waves or the laser. The battery core can be used for manufacturing an orthohexagonal columnar battery, and for a battery pack, a single-battery staggering phenomenon does not easily happen; the circulating service life of the battery pack is prolonged and the mechanical stability is good; and the service life of the battery can be greatly prolonged, the range is greatly enlarged and the combination quantity of the battery pack is greatly improved. The charging-discharging circulating service life of the battery pack can be more than 850 times under the condition of more than 5C of multiplying powers.
Description
Technical field
The utility model relates to technical field of chemical power, is specifically related to a kind of orthohexagonal lithium ion battery cell.This orthohexagonal lithium ion battery cell can be used for making the orthohexagonal lithium-ion-power cell of various models, common coiled cylindrical lithium ion battery, is specially adapted to make the orthohexagonal lithium-ion-power cell that the battery pack of the many battery combination that are used for various occasions is used.
Background technology
At present, existing industrial manufacturing lithium ion battery is used is takeup type or stacked lithium ion battery cell, and the electric core of this type is made up of three parts such as positive pole, barrier film, negative poles, and is wound into cylindrical, square or range upon range of squarely.The lithium ion battery that the battery battery core of this structure is made can only be for cylindrical or square; Cylindrical or the rectangular cell that the electric core of cylindrical or rectangular cell is made exists significant not enough: when 1) cylindrical battery or rectangular cell are combined into battery pack under the condition of jolting, vibrating; Monocell dislocation, battery pack distortion take place in battery pack very easily; Possibly cause that battery pack opens circuit or short circuit, thereby make that battery pack can't operate as normal, influence the operate as normal of battery pack; Reduce the useful life of battery pack, even owing to short circuit security incident such as blast; 2) it is poor that cylindrical battery or rectangular cell are combined into the battery pack mechanical stability, has bigger various hidden danger; 3) cylindrical battery or rectangular cell are normally made with coiled cylindrical electricity core or takeup type or stacked square electric core; Cylindrical or square electric core than be easier to become flexible, the utilance of battery case is also lower; Loosening electric core causes that easily electrode utmost point active material comes off, forms micro-short circuit, greatly reduces the capacity of cylindrical and rectangular cell and recycles the life-span; Take bigger space when 4) cylindrical battery or rectangular cell are combined into battery pack; Big limitations the scope of application and the number of combinations of battery pack etc. of cylindrical rectangular cell.
The utility model content
In order to solve the above-mentioned deficiency that prior art exists, the purpose of the utility model is to be to provide a kind of orthohexagonal lithium ion battery cell, and it is simple in structure; Can be used for the manufacturing of orthohexagonal prismatic battery, cylindrical battery; The lithium ion battery of a kind of orthohexagonal lithium ion battery cell manufacturing that the utility model technology is made, under the condition of jolting, vibrating, battery pack is not easy to take place monocell dislocation, battery pack distortion; Can not cause that battery pack opens circuit or short circuit; Can operate as normal, battery pack recycle the life-span, do not have short circuit usually and security incident such as blast; There is not potential safety hazard in the battery pack good mechanical stability of orthohexagonal monocell combination; Orthohexagonal battery combination occupation space is less; The scope of application of battery and the number of combinations of battery pack etc. have been improved greatly.
The utility model is achieved through following technical proposals:
A kind of orthohexagonal lithium ion battery cell, (Fig. 1-Fig. 6) comprises that positive pole, negative pole, barrier film etc. partly form to described a kind of orthohexagonal lithium ion battery cell; Wherein, anodal is that 5～50 μ m positive active material single or double coatings, thickness are that three parts of nickel strap positive pole ear that 5～25 μ m aluminium foil plus plate current-collecting bodies and 1～5 thickness that does not wait are 20～50 μ m are formed by thickness; Negative pole is that 5～50 μ m negative electrode active material single or double coatings, thickness are that three parts of nickel strap negative lug that 5～25 μ m Copper Foil negative current collectors and 1～5 thickness that does not wait are 20～50 μ m are formed by thickness; Barrier film is wherein a kind of of the ultra-thin polyethylene of 1～10 μ m (PE) or polypropylene (PP) or PP/PE/PP compound nonwoven cloth (film) by thickness.
Further, the utility model comprises following content:
A kind of orthohexagonal lithium ion battery cell, described a kind of orthohexagonal lithium ion battery cell comprise that positive pole, negative pole, barrier film etc. partly form.
A kind of orthohexagonal lithium ion battery cell is characterized in that: anodal is that 5～50 μ m positive active material single or double coatings, thickness are that three parts of nickel strap positive pole ear that 5～25 μ m aluminium foil plus plate current-collecting bodies and 1～5 thickness that does not wait are 10～50 μ m are formed by thickness; Three's annexation is: positive active material is with lithium ion cell positive coating process commonly used; On collector, form the positive active material coating through operation single face such as slurrying, coating, drying or double-coated, lug is reserved blank space and is connected (seeing accompanying drawing 1～2 for details) in aluminum foil current collector through ultrasonic wave or laser welding.
A kind of orthohexagonal lithium ion battery cell is characterized in that: negative pole is that 5～50 μ m negative electrode active material single or double coatings, thickness are that three parts of nickel strap negative lug that 5～25 μ m Copper Foil negative current collectors and 1～5 thickness that does not wait are 10～50 μ m are formed by thickness; Three's annexation is: negative electrode active material is with lithium ion battery negative coating process commonly used; On collector, form the negative electrode active material coating through operation single face such as slurrying, coating, drying or double-coated, negative lug is reserved blank space and is connected (seeing accompanying drawing 3～4 for details) in the Copper Foil collector through ultrasonic wave or laser welding.
A kind of orthohexagonal lithium ion battery cell is characterized in that: barrier film is wherein a kind of of the ultra-thin polyethylene of 1～10 μ m (PE) or polypropylene (PP) or PP/PE/PP compound nonwoven cloth (film) by thickness.
A kind of orthohexagonal lithium ion battery cell; It is characterized in that: positive pole, negative pole and barrier film three's annexation is: barrier film is between positive pole and negative pole; Parallel overlaping; Reel with positive hexagonal prism shape winding needle, the mode anodal with the negative pole bag is wound into electric core, also fixedly is pressed into positive hexagonal prism type and processes (seeing accompanying drawing 5～6 for details) through positive hexagonal prism type press mold machine pad pasting.
Adopt the technical scheme of the utility model; Can obtain following obvious effects: the lithium-ion-power cell of a kind of orthohexagonal lithium ion battery cell institute assembly of producing with the utility model technology; Owing to used the two current collector structure of the aluminium foil of many microporous structures anodal; Make the effective contact area between positive active material coating and the plus plate current-collecting body significantly increase; Adhesive property between positive active material and the plus plate current-collecting body improves greatly; Thereby improved effective utilization of positive active material, reduced positive active material coming off in use, the high current charge-discharge effect of electrode significantly improved; Make to have high rate during charging-discharging preferably, long to recycle the life-span with this anodal battery of making, charge and discharge cycles useful life (discharge capacity is not less than the charge and discharge cycles number of times of design capacity 75%) is above 850 times under the above multiplying power condition of 5C.
The utility model is specially adapted to make the orthohexagonal lithium-ion-power cell, also is applicable to the column lithium ion battery of all kinds, various models.
Description of drawings
Fig. 1 is that a kind of monopole ear coated on both sides of orthohexagonal lithium ion battery cell just (is being born) utmost point sketch map
Fig. 2 is that a kind of 5 lug single face coatings of orthohexagonal lithium ion battery cell just (are being born) utmost point sketch map
Fig. 3 is a kind of positive pole, negative pole and barrier film overlapping relation sketch map of orthohexagonal lithium ion battery cell
Fig. 4 is a kind of cross sectional planes sketch map of orthohexagonal lithium ion battery cell
Fig. 5 is a kind of schematic perspective view of orthohexagonal lithium ion battery cell
Wherein: lug position, 3-barrier film that the blank lug position that 1a-positive active material coating, 1b-plus plate current-collecting body, 1c-positive pole ear, 1d-reserve, 2a-negative electrode active material coating, 2b-negative current collector, 2c-negative lug, 2d-reserve
Embodiment
Below in conjunction with Fig. 1～Fig. 5 and specific embodiment, the utility model is done further to describe in detail.
Referring to accompanying drawing 1～Fig. 5, a kind of orthohexagonal lithium ion battery cell of the utility model, described a kind of orthohexagonal lithium ion battery cell comprise partly composition such as positive pole 1, negative pole 2, barrier film 3.
A kind of orthohexagonal lithium ion battery cell is characterized in that: anodal 1 is that 5～50 μ m positive active material single or double coating 1a, thickness are that three parts of nickel strap positive pole ear 1c that 5～25 μ m aluminium foil plus plate current-collecting body 1b and 1～5 thickness that does not wait are 10～50 μ m are formed by thickness; Three's annexation is: positive active material is with lithium ion cell positive coating process commonly used; Go up in collector 1b through operation single face such as slurrying, coating, drying or double-coated and to form positive active material coating 1a, lug 1c reserves blank space and connects and (see accompanying drawing 1～Fig. 3) for details in aluminum foil current collector 1b through ultrasonic wave or laser welding.
A kind of orthohexagonal lithium ion battery cell is characterized in that: negative pole 2 is that the thick or coated on both sides 2a of 5～50 μ m negative electrode active material thickness, 5～50 μ m single faces, 5～50 μ m, thickness are that three parts of nickel strap negative lug 2c that 5～25 μ m Copper Foil negative current collector 2b and 1～5 thickness that does not wait are 10～50 μ m are formed by thickness; Three's annexation is: negative electrode active material is with lithium ion battery negative coating process commonly used; Go up in collector 2b through operation single face such as slurrying, coating, drying or double-coated that to form thickness be 5～50 μ m negative electrode active material coating 2a, negative lug 2c reserves blank space and connects and (see accompanying drawing 1～Fig. 3) for details in Copper Foil collector 2b through ultrasonic wave or laser welding.
A kind of orthohexagonal lithium ion battery cell is characterized in that: barrier film 3 is the ultra-thin polyethylene of 1～10 μ m (PE) or polypropylene (PP) or PP/PE/PP compound nonwoven cloth (film) by thickness.
A kind of orthohexagonal lithium ion battery cell; It is characterized in that: positive pole 1, negative pole 2 and barrier film 3 threes' annexation is: barrier film 3 is between positive pole 1 and negative pole; Parallel overlaping; Reel with positive hexagonal prism shape winding needle, be wound into electric core, through positive hexagonal prism type press mold machine pad pasting and fixedly be pressed into positive hexagonal prism type and process and (see accompanying drawing 3～Fig. 5) for details with the mode of negative pole 2 bags anodal 1.
Be assembled into lithium-ion-power cell with a kind of orthohexagonal lithium ion battery cell of the utility model, under 5C and the above high power charging-discharging condition of 5C, the cycle life of battery (discharge capacity less than design capacity 75% time charge and discharge cycles number of times) is above 850 times.
Yet therefore the preferred embodiment that the above is merely the utility model is not and the protection range of limitation the utility model that the equivalence that all utilization the utility model description are carried out changes, and all is included in the scope of the utility model.
Claims (3)
1. orthohexagonal lithium ion battery cell; Comprise positive pole (1), negative pole (2), barrier film (3); It is characterized in that: anodal (1) is 5～50 μ m positive active material single or double coatings (1a) by thickness, and thickness is 5～25 μ m aluminium foil plus plate current-collecting bodies (1b) and 1～5 three part composition of nickel strap positive pole ear (1c) that the thickness that does not wait is 10～50 μ m; Positive active material is coated on collector (1b) with single or double and goes up formation positive active material coating (1a); Lug (1c) is reserved blank space (1d) connection through ultrasonic wave or laser welding in aluminum foil current collector (1b); Negative pole (2) is 5～50 μ m negative electrode active material single or double coatings (2a) by thickness, and thickness is 5～25 μ m Copper Foil negative current collectors (2b) and 1～5 three part composition of nickel strap negative lug (2c) that the thickness that does not wait is 10～50 μ m; Negative electrode active material is coated on collector (2b) with single or double and goes up formation negative electrode active material coating (2a), and negative lug (2c) is reserved blank space (2d) connection through ultrasonic wave or laser welding in Copper Foil collector (2b).
2. a kind of orthohexagonal lithium ion battery cell according to claim 1 is characterized in that: barrier film (3) is wherein a kind of of the ultra-thin polyethylene of 1～10 μ m or polypropylene or PP/PE/PP compound nonwoven cloth by thickness.
3. a kind of orthohexagonal lithium ion battery cell according to claim 1; It is characterized in that: described barrier film (3) is positioned between positive pole (1) and the negative pole; Parallel overlaping; Reel with positive hexagonal prism shape winding needle, the mode of negative pole (2) bag anodal (1) is wound into electric core, and the positive hexagonal prism type press mold machine pad pasting of warp also fixedly is pressed into positive hexagonal prism type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200758792U CN202503077U (en) | 2012-03-01 | 2012-03-01 | Battery core of orthohexagonal lithium ion battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200758792U CN202503077U (en) | 2012-03-01 | 2012-03-01 | Battery core of orthohexagonal lithium ion battery |
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| CN202503077U true CN202503077U (en) | 2012-10-24 |
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| CN2012200758792U Expired - Fee Related CN202503077U (en) | 2012-03-01 | 2012-03-01 | Battery core of orthohexagonal lithium ion battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786589A (en) * | 2019-01-04 | 2019-05-21 | 上海德朗能动力电池有限公司 | A kind of battery modules of square lithium ion battery and preparation method and its composition |
| JP2021506078A (en) * | 2018-09-05 | 2021-02-18 | エルジー・ケム・リミテッド | Hexagonal column-shaped battery cell, its manufacturing method, and battery module including this |
| WO2022213306A1 (en) * | 2021-04-07 | 2022-10-13 | 江苏时代新能源科技有限公司 | Battery cell, battery, electric device, and method and apparatus for manufacturing battery cell |
-
2012
- 2012-03-01 CN CN2012200758792U patent/CN202503077U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021506078A (en) * | 2018-09-05 | 2021-02-18 | エルジー・ケム・リミテッド | Hexagonal column-shaped battery cell, its manufacturing method, and battery module including this |
| JP7055876B2 (en) | 2018-09-05 | 2022-04-18 | エルジー エナジー ソリューション リミテッド | Hexagonal column-shaped battery cell and its manufacturing method, and battery module including this |
| US11575145B2 (en) | 2018-09-05 | 2023-02-07 | Lg Energy Solution, Ltd. | Hexagonal column-shaped battery cell, manufacturing method therefor, and battery module comprising same |
| CN109786589A (en) * | 2019-01-04 | 2019-05-21 | 上海德朗能动力电池有限公司 | A kind of battery modules of square lithium ion battery and preparation method and its composition |
| WO2022213306A1 (en) * | 2021-04-07 | 2022-10-13 | 江苏时代新能源科技有限公司 | Battery cell, battery, electric device, and method and apparatus for manufacturing battery cell |
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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 |
Granted publication date: 20121024 Termination date: 20140301 |