CN106129478A - A kind of lamination type electric pool structure, the secondary battery including it and battery module - Google Patents
A kind of lamination type electric pool structure, the secondary battery including it and battery module Download PDFInfo
- Publication number
- CN106129478A CN106129478A CN201610682605.2A CN201610682605A CN106129478A CN 106129478 A CN106129478 A CN 106129478A CN 201610682605 A CN201610682605 A CN 201610682605A CN 106129478 A CN106129478 A CN 106129478A
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- pole
- battery
- battery unit
- barrier film
- type electric
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
-
- 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
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- Secondary Cells (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a kind of lamination type electric pool structure, secondary battery and battery module including it, lamination type electric pool structure includes battery core, described battery core includes the two-layer continuous way barrier film being oppositely arranged, spaced multiple first battery unit is clipped between described two-layer continuous way barrier film, described two-layer continuous way barrier film and folder described first battery unit in-between fold with zigzag and form lamination type electric core, the second battery unit is accompanied between the outside of described continuous way barrier film, two pole pieces that described second battery unit and described first battery unit are mutually pressed close to form an electrode pair；The present invention uses two-layer continuous way membrane configuration, on the one hand, the stability making battery structure is higher, improves the cycle performance of battery, on the other hand, can improve the production preparation efficiency of battery.
Description
Technical field
The present invention relates to field of batteries, the secondary battery be specifically related to a kind of lamination type electric pool structure, including it and electricity
Pond group module.
Background technology
Society, mobile device fast development, demand is growing, in addition the carrying forward vigorously of new-energy automobile, as
The battery industry of the mobile device energy is flourish.Thus, the various market demands have been done substantial amounts of investigation and research.For electricity
Pond volume energy density is more and more higher with the requirement of gravimetric energy density, to high-performance, high stability, the lithium ion of high security
The demand of polymer battery and set of cells is the highest.Greatly developing of new-energy automobile, power lithium-ion battery reduces manufacturing cost
Face the biggest challenge.Therefore, it can the structure of battery component is made a distinction, have accordion structure and laminated structure, volume
It is that continuous print positive plate and negative plate are separated be wound by separating film around structure；And in laminated type structure, by specific
Construction unit carry out continuous print stacking, and separate by separating film.
But, traditional battery structure has Railway Project.First, by being wound around sheet type negative pole and sheet type thick and fast
Positive pole manufactures accordion structure, and result battery structure is circular or oval on cross section.So, in the charging of battery with put
The stress caused due to expansion and the contraction of electrode during electricity is accumulated in battery structure, and when cumulative stress exceedes particular pole
In limited time, battery structure can deform.The deformation of battery structure causes uneven gap in-between the electrodes, the cycle performance of battery
To drastically be deteriorated, the safety of battery can not get due to the short circuit of inside battery ensureing.Secondly, by sequentially stacking multiple unit
Negative pole and multiple unit positive pole manufacture the battery structure of stacked, need substantial amounts of time and efforts to come at execution sequence stacking
Reason, result is that this operation production efficiency is low.So, one can structural stability be higher, preparation efficiency is higher novel in exploitation
Battery structure.
Summary of the invention
The technical problem to be solved be to provide a kind of lamination type electric pool structure, include its secondary battery and
Battery module.
The technical solution used in the present invention is:
A kind of lamination type electric pool structure, including battery core, described battery core includes the two-layer continuous way barrier film being oppositely arranged, described two-layer
Clipping spaced multiple first battery unit between continuous way barrier film, described two-layer continuous way barrier film and folder are in-between
Described first battery unit folds with zigzag and forms lamination type electric core, accompanies the second electricity between the outside of described continuous way barrier film
Two pole pieces that pool unit, described second battery unit and described first battery unit are mutually pressed close to form an electrode pair.
In some specific embodiments, described first battery unit is positive pole single pole piece, negative pole single pole piece, outer side pole
Sheet is positive pole and the structure of negative pole, outside pole piece are the structure of positive pole, outside pole piece is any one in the structure of negative pole.
In the embodiment of the improvement of such scheme, the outermost pole piece of described lamination type electric pool structure is negative plate.
In some specific embodiments, described first battery unit be positive pole single pole piece, negative pole single pole piece, positive pole/
Barrier film/negative pole, negative pole/barrier film/positive pole, positive pole/barrier film/negative pole/barrier film/positive pole, negative pole/barrier film/positive pole/barrier film/negative polarity node
Any one in structure.
In some specific embodiments, described first battery unit is the structure that positive pole or outside pole piece are positive pole
Time, described second battery unit is the structure that negative pole or outside pole piece are negative pole.
In some specific embodiments, described first battery unit is the structure that negative pole or outside pole piece are negative pole
Time, described second battery unit is the structure that positive pole or outside pole piece are positive pole.
In some specific embodiments, described first battery unit be outside pole piece be the structure of positive pole and negative pole
Time, described second battery unit is that single pole piece, outside pole piece are the structure of positive pole or outside pole piece is the structure of negative pole.
Present invention also offers a kind of secondary battery, including lamination type electric pool structure as above.
Present invention also offers a kind of battery module, including secondary battery as above.
The invention has the beneficial effects as follows:
The most all of battery structure is all to use monolayer continuous way barrier film to be formed by the form of winding or folding
Battery core, battery structure stability is inadequate, and battery structure is easily deformed, and for this problem, the invention provides a kind of stacked
Battery structure, including battery core, described battery core includes the two-layer continuous way barrier film being oppositely arranged, between described two-layer continuous way barrier film
Clip spaced multiple first battery unit, described two-layer continuous way barrier film and folder described first battery list in-between
Unit folds with zigzag and forms lamination type electric core, accompanies the second battery unit between the outside of described continuous way barrier film, and described second
Two pole pieces that battery unit and described first battery unit are mutually pressed close to form an electrode pair；The present invention uses two-layer continuous
Formula membrane configuration, on the one hand, lamination type electric pool structure of the present invention does not deposit the hidden danger of cell deformation after cycling, safer,
Design space is broader so that the stability of battery structure is higher, improves the cycle performance of battery, the most of the present invention
The production preparation efficiency of laminated battery plate can improve one and arrive twice, i.e. decreases energy consumption, also reduces the manufacturing of battery
Cost, can improve the production preparation efficiency of battery.The application of lamination type electric pool structure of the present invention can be new-energy automobile
Industry great development gives technical solution.
Accompanying drawing explanation
Fig. 1 is the laminated battery plate structure chart of embodiment 1；
Fig. 2 is the structure chart before the battery structure folding of embodiment 1；
Fig. 3 is the structure chart before the battery structure folding of embodiment 2；
Fig. 4 is the laminated battery plate structure chart of embodiment 2；
Fig. 5 is the structure chart before the battery structure folding of embodiment 3；
Fig. 6 is the laminated battery plate structure chart of embodiment 3；
Fig. 7 is the structure chart before the battery structure folding of embodiment 4；
Fig. 8 is the structure chart before the battery structure folding of embodiment 5；
Fig. 9 is the laminated battery plate structure chart of embodiment 5；
Figure 10 is the structure chart before the battery structure folding of embodiment 6.
Detailed description of the invention
Embodiment 1:
With reference to the laminated battery plate structure chart that Fig. 1, Fig. 1 are embodiment 1, the invention provides a kind of lamination type electric pool structure, bag
Including battery core, described battery core includes the two-layer continuous way barrier film 1,2 being oppositely arranged, described two-layer continuous way barrier film 1, clips between 2
Spaced multiple first battery unit 3, described two-layer continuous way barrier film 1,2 and folder described first battery list in-between
Unit 3 folds with zigzag and forms lamination type electric core, accompanies the second battery unit between the outside of described two-layer continuous way barrier film 1,2
4, two pole pieces that described second battery unit 4 and described first battery unit 3 are mutually pressed close to form an electrode pair.In this reality
Executing in example, described first battery unit 3 is negative pole single pole piece, and described second battery unit 4 is positive pole single pole piece, described stacked
The outermost pole piece of battery structure is negative plate.The ending end of described two-layer continuous way barrier film 1,2 is fixed by hot melt or passes through
Glue bond is fixed.
The method preparing above-mentioned battery structure comprises the following steps: cutting preparation the first battery unit, then by the first electricity
Pool unit is placed in the middle of two-layer continuous way barrier film by interval, setting position, and then the second battery unit is placed in the company on upper strata
Below the continuous way barrier film of the above or lower floor of continuous formula barrier film, two adjacent the second battery units are respectively arranged on the company on upper strata
Below the continuous way barrier film of the above and lower floor of continuous formula barrier film, each second battery unit each first battery unit corresponding is put
Put, two-layer continuous way barrier film is folded with zigzag together with the first battery unit being sandwiched between it and forms lamination type electric core, make
Obtain whole full battery overlapping, and negative pole forms certain covering to positive pole.
With reference to Fig. 2, Fig. 2 be embodiment 1 battery structure fold before structure chart, two-layer continuous way barrier film 1,2 it
Between interval multiple first battery unit 3 is set, the interval of first battery unit 3 of adjacent two be equal to twice the first battery unit
Thickness and the thickness of the second battery unit 4.Each second battery unit 4 each first battery unit 3 corresponding is placed, adjacent two
Below the continuous way barrier film 2 of the above and lower floor that individual second battery unit 4 is respectively arranged on the continuous way barrier film 1 on upper strata.By two
Layer continuous way barrier film 1,2 is folded up forming lamination type electric with zigzag together with the first battery unit 3 being sandwiched between it
Core.
Embodiment 2:
With reference to Fig. 3-4, Fig. 3 is the structure chart before the battery structure folding of embodiment 2, and Fig. 4 is the laminated battery plate of embodiment 2
Structure chart, the present embodiment is substantially the same manner as Example 1, and difference is: described first battery unit 3 is positive pole single pole piece,
Described second battery unit 4 is negative pole single pole piece.After folding, the outermost pole piece of described lamination type electric pool structure is negative plate,
Namely come and be respectively provided with a negative pole single pole piece below first and last first battery unit 3 or outside pole piece is negative pole
Structure, in the present embodiment, comes first and is respectively provided with a negative plate 5 below last first battery unit 3.
Embodiment 3:
Structure chart before folding with reference to the battery structure that Fig. 5, Fig. 5 are embodiment 3, the present embodiment is substantially the same manner as Example 1,
Difference is: described first battery unit 3 is positive pole/barrier film/negative pole structure, even number the first battery from second
Described second battery unit 4 of unit 3 correspondence is located at above the continuous way barrier film 1 on upper strata, odd number from the 3rd
Described second battery unit 4 of one battery unit 3 correspondence is located at below the continuous way barrier film 2 of lower floor, is located at the continuous of upper strata
Above described second battery unit 4 of formula barrier film 1 is the structure that negative pole single pole piece or outside pole piece are negative pole, is located at lower floor
Continuous way barrier film 1 below described second battery unit 4 be the structure that positive pole single pole piece or outside pole piece are positive pole,
In the present embodiment, be located at upper strata continuous way barrier film 1 above described second battery unit 4 for negative pole/barrier film/positive pole/every
Film/negative pole, be located at described second battery unit 4 below the continuous way barrier film 1 of lower floor for positive pole/barrier film/negative pole/barrier film/
Positive pole.It is folded up getting final product shape with zigzag together with the first battery unit 3 being sandwiched between it by two-layer continuous way barrier film 1,2
Becoming lamination type electric core, the lamination type electric pool structure obtained is as shown in Figure 6.
Embodiment 4:
Structure chart before folding with reference to the battery structure that Fig. 7, Fig. 7 are embodiment 4, the present embodiment is substantially the same manner as Example 3,
Difference is: described first battery unit 3 is negative pole/barrier film/anode structure, and even number the first battery unit 3 is corresponding
Described second battery unit 4 be located at above the continuous way barrier film 1 on upper strata, the institute of odd number the first battery unit 3 correspondence
State the second battery unit 4 to be located at below the continuous way barrier film 2 of lower floor, be located at continuous way barrier film 1 above described on upper strata
Second battery unit 4 is the structure that positive pole single pole piece or outside pole piece are positive pole, is located at below the continuous way barrier film 1 of lower floor
Described second battery unit 4 be the structure that negative pole single pole piece or outside pole piece are negative pole, in the present embodiment, be located at upper strata
Above described second battery unit 4 of continuous way barrier film 1 be positive pole single pole piece, be located at the continuous way barrier film 1 time of lower floor
Described second battery unit 4 in face is negative pole single pole piece.
Embodiment 5:
Structure chart before folding with reference to the battery structure that Fig. 8, Fig. 8 are embodiment 5, the present embodiment is substantially the same manner as Example 2,
Difference is: described first battery unit 3 is positive pole/barrier film/negative pole/barrier film/anode structure, described second battery unit
4 is negative pole single pole piece.It is the laminated battery plate structure chart of embodiment 5 with reference to Fig. 9, Fig. 9, two-layer continuous way barrier film 1,2 and being sandwiched in
The first battery unit 3 between it folds with zigzag together, can form lamination type electric core.After folding, described laminated battery plate
The outermost pole piece of structure is negative plate, namely comes that to be respectively provided with one below first and last first battery unit 3 negative
Pole piece 5.
Embodiment 6:
Structure chart before folding with reference to the battery structure that Figure 10, Figure 10 are embodiment 6, the present embodiment phase basic with embodiment 1
With, difference is: described first battery unit 3 is negative pole/barrier film/positive pole/barrier film/negative pole structure, described second battery
Unit 4 is positive pole/barrier film/negative pole/barrier film/anode structure.After folding, the outermost pole piece of described lamination type electric pool structure is negative
Pole piece.
Claims (9)
1. a lamination type electric pool structure, including battery core, it is characterised in that described battery core includes the two-layer continuous way being oppositely arranged
Barrier film, clips spaced multiple first battery unit, described two-layer continuous way barrier film between described two-layer continuous way barrier film
And described first battery unit that folder is in-between folds with zigzag and forms lamination type electric core, the outside of described continuous way barrier film
Between accompany two pole pieces that the second battery unit, described second battery unit and described first battery unit mutually press close to and formed
One electrode pair.
Lamination type electric pool structure the most according to claim 1, it is characterised in that described first battery unit is positive pole one pole
Sheet, negative pole single pole piece, outside pole piece are positive pole and the structure of negative pole, outside pole piece are the structure of positive pole, outside pole piece is
Any one in the structure of negative pole.
Lamination type electric pool structure the most according to claim 2, it is characterised in that the outermost of described lamination type electric pool structure
Pole piece is negative plate.
Lamination type electric pool structure the most according to claim 2, it is characterised in that described first battery unit is positive pole one pole
Sheet, negative pole single pole piece, positive pole/barrier film/negative pole, negative pole/barrier film/positive pole, positive pole/barrier film/negative pole/barrier film/positive pole, negative pole/every
Any one in film/positive pole/barrier film/negative pole structure.
Lamination type electric pool structure the most according to claim 2, it is characterised in that described first battery unit is positive pole or outer
When side pole sheet is the structure of positive pole, described second battery unit is the structure that negative pole or outside pole piece are negative pole.
Lamination type electric pool structure the most according to claim 2, it is characterised in that described first battery unit is negative pole or outer
When side pole sheet is the structure of negative pole, described second battery unit is the structure that positive pole or outside pole piece are positive pole.
Lamination type electric pool structure the most according to claim 2, it is characterised in that described first battery unit is outside pole piece
During for the structure of positive pole and negative pole, described second battery unit is that single pole piece, outside pole piece are the structure of positive pole or outer side pole
Sheet is the structure of negative pole.
8. a secondary battery, it is characterised in that include the lamination type electric pool structure as described in any one of claim 1-7.
9. a battery module, it is characterised in that include secondary battery as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610682605.2A CN106129478A (en) | 2016-08-17 | 2016-08-17 | A kind of lamination type electric pool structure, the secondary battery including it and battery module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610682605.2A CN106129478A (en) | 2016-08-17 | 2016-08-17 | A kind of lamination type electric pool structure, the secondary battery including it and battery module |
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| CN201610682605.2A Pending CN106129478A (en) | 2016-08-17 | 2016-08-17 | A kind of lamination type electric pool structure, the secondary battery including it and battery module |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171017A (en) * | 2017-07-11 | 2017-09-15 | 力信（江苏）能源科技有限责任公司 | One kind winding laminated battery |
| CN107204415A (en) * | 2017-07-11 | 2017-09-26 | 力信（江苏）能源科技有限责任公司 | A kind of high temperature safe type battery core |
| CN108808059A (en) * | 2017-11-15 | 2018-11-13 | 李嫊罗 | A kind of stacked secondary cell and preparation method thereof stacked based on intersection |
| WO2018205414A1 (en) * | 2017-05-12 | 2018-11-15 | 深圳市格林晟科技有限公司 | Composite lamination method |
| CN110277590A (en) * | 2019-06-28 | 2019-09-24 | 蜂巢能源科技有限公司 | Laminating method and battery core pole group manufacturing equipment for battery core manufacture |
| CN110380129A (en) * | 2019-07-25 | 2019-10-25 | 蜂巢能源科技有限公司 | Lithium ion battery and preparation method thereof |
| CN110474106A (en) * | 2019-08-06 | 2019-11-19 | 东莞市超鸿自动化设备有限公司 | The manufacturing method of two-layer electrode recombiner unit turnover type battery core |
| CN110474108A (en) * | 2019-08-06 | 2019-11-19 | 东莞市超鸿自动化设备有限公司 | The manufacturing method of even electrode recombiner unit turnover type battery core |
| CN110474107A (en) * | 2019-08-06 | 2019-11-19 | 东莞市超鸿自动化设备有限公司 | The manufacturing method of odd electrode recombiner unit turnover type battery core |
| CN112615060A (en) * | 2021-01-11 | 2021-04-06 | 深圳市格林晟科技有限公司 | Lamination method of laminated battery cell |
| CN113594533A (en) * | 2021-08-03 | 2021-11-02 | 蜂巢能源科技有限公司 | Battery cell, preparation method and system thereof and secondary battery |
| CN116259853A (en) * | 2023-05-11 | 2023-06-13 | 中创新航科技集团股份有限公司 | Battery cell |
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| CN110277590A (en) * | 2019-06-28 | 2019-09-24 | 蜂巢能源科技有限公司 | Laminating method and battery core pole group manufacturing equipment for battery core manufacture |
| CN110277590B (en) * | 2019-06-28 | 2022-04-12 | 蜂巢能源科技有限公司 | Lamination method for manufacturing battery cell and battery cell pole group manufacturing equipment |
| CN110380129A (en) * | 2019-07-25 | 2019-10-25 | 蜂巢能源科技有限公司 | Lithium ion battery and preparation method thereof |
| CN110474106A (en) * | 2019-08-06 | 2019-11-19 | 东莞市超鸿自动化设备有限公司 | The manufacturing method of two-layer electrode recombiner unit turnover type battery core |
| CN110474107A (en) * | 2019-08-06 | 2019-11-19 | 东莞市超鸿自动化设备有限公司 | The manufacturing method of odd electrode recombiner unit turnover type battery core |
| CN110474108A (en) * | 2019-08-06 | 2019-11-19 | 东莞市超鸿自动化设备有限公司 | The manufacturing method of even electrode recombiner unit turnover type battery core |
| CN112615060A (en) * | 2021-01-11 | 2021-04-06 | 深圳市格林晟科技有限公司 | Lamination method of laminated battery cell |
| CN113594533A (en) * | 2021-08-03 | 2021-11-02 | 蜂巢能源科技有限公司 | Battery cell, preparation method and system thereof and secondary battery |
| CN116259853A (en) * | 2023-05-11 | 2023-06-13 | 中创新航科技集团股份有限公司 | Battery cell |
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Application publication date: 20161116 |