CN107863552A - A kind of core strueture and the battery using the core strueture - Google Patents
A kind of core strueture and the battery using the core strueture Download PDFInfo
- Publication number
- CN107863552A CN107863552A CN201711267702.6A CN201711267702A CN107863552A CN 107863552 A CN107863552 A CN 107863552A CN 201711267702 A CN201711267702 A CN 201711267702A CN 107863552 A CN107863552 A CN 107863552A
- Authority
- CN
- China
- Prior art keywords
- plate
- negative
- positive
- core
- positive plate
- 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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- 230000004888 barrier function Effects 0.000 claims abstract description 27
- 238000004804 winding Methods 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 239000011258 core-shell material Substances 0.000 claims description 3
- 230000005405 multipole Effects 0.000 claims description 3
- 239000011149 active material Substances 0.000 claims description 2
- 210000005069 ears Anatomy 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
Classifications
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Primary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The present invention provides a kind of core strueture and the battery using the core strueture, core strueture includes positive plate, negative plate and barrier film, the positive plate or negative plate are discontinuous structure, corresponding negative plate or positive plate are continuous structure, the positive plate of discontinuous structure or negative plate both sides are complex as a whole with barrier film respectively, negative plate or positive plate after compound again with corresponding continuous structure are wound into battery core, positive plate and negative plate and the alternately laminated structure of barrier film are formed, and the different sections of the positive plate of discontinuous structure or negative plate are located in the different layers of battery core.The positive plate or negative plate of discontinuous structure are formed by multistage pole piece is spaced apart, and barrier film is continuous structure.One of pole piece of the core strueture is continuous structure, and another is discontinuous structure, the characteristics of so as to using the manufacture craft of winding, have production efficiency high and even tension concurrently.
Description
Technical field
The present invention relates to technical field of lithium batteries, the electricity more particularly to a kind of core strueture and using the core strueture
Pond.
Background technology
Lithium ion battery is a kind of battery with higher energy density and good environmental-protecting performance, has energy high, reliable
Property high and processability it is good the advantages that, therefore be widely used in all kinds of portable electric appts.
Battery core in lithium ion battery generally comprises the positive plate for being overlapped mutually or winding, barrier film and negative plate, between barrier film
Every between adjacent positive and negative plate, positive and negative plate can be dielectrically separated from and keep electrolyte.Its structure type, which exists, asks
Topic：1st, lamination battery core, due to production when, it is necessary to positive plate, negative plate and barrier film are cut into it is sectional, then
It is laminated again, low production efficiency；2nd, it is high to wind core strueture production efficiency, but pole piece and the difficult control of membrane tension, easily
Battery core is caused to deform, yield rate is low.
In view of this, it is necessory to provide a kind of Novel electric core structure and its battery using the structure type.
The content of the invention
The technical problems to be solved by the invention are：In order to overcome deficiency of the prior art, the present invention provides a kind of electricity
Cored structure and the battery using the core strueture.
The present invention solves its technical problem technical scheme to be taken：A kind of core strueture, including positive plate, negative pole
Piece and barrier film, the positive plate or negative plate are discontinuous structure, and corresponding negative plate or positive plate are continuous structure, discontinuous
The positive plate of structure or negative plate both sides are complex as a whole with barrier film respectively, it is compound after the negative plate with corresponding continuous structure again
Or positive plate is wound into battery core, positive plate and negative plate and the alternately laminated structure of barrier film, and the positive pole of discontinuous structure are formed
The different sections of piece or negative plate are located in the different layers of battery core.The positive plate or negative plate of discontinuous structure are by multistage pole piece interval
Certain distance is formed, and barrier film is continuous structure.One of pole piece of the core strueture is continuous structure, and another is discontinuous knot
Structure, the characteristics of so as to using the manufacture craft of winding, have production efficiency high and even tension concurrently.
Further, because in winding process, with the increase of the number of plies, the thickness of battery core increases, the continuous knot of battery core both sides
The length of structure can increase, therefore, in order to ensure that every section of discontinuous structure is only positioned in one layer of core strueture, discontinuous structure
The distance between middle adjacent positive piece or adjacent cathode piece are gradually increased from the top wound to the end of winding.Barrier film can be made
And pole piece tension force is more uniform.
Further, the positive plate includes plus plate current-collecting body and positive electrode active materials, and the negative plate includes negative pole currect collecting
Body and negative active core-shell material.
Further, the positive plate and negative plate are multi pole ears or full extreme ear structure, and positive and negative lug in battery core homonymy or
Positive and negative lug is in battery core both sides.
A kind of battery, including above-mentioned core strueture.
Manufacturing process：
Illustrate by discontinuous structure of positive plate, first, positive plate is cut into according to the width requirement of battery core isometric
Section shape it is standby, then calculated according to the thickness gauge of positive plate, negative plate and diaphragm material between adjacent positive piece it is initial away from
From, and the variable quantity from winding top to distance between winding end positive plate, it is by positive plate arrangement according to required distance
Discontinuous structure, be then complex as a whole structure in the positive plate both sides of discontinuous structure and barrier film, finally with continuous structure
Negative plate winds to form battery core.It should be noted that coiling direction is inwardly wound by discontinuous structure side.
The beneficial effects of the invention are as follows：1st, compared to lamination battery core, there is the characteristics of production efficiency is high；2nd, compared to winding
Structure battery core, have the characteristics that barrier film and pole piece tension force are more uniform, the effective width of battery core is bigger.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the positive/negative plate of embodiment one and diaphragm position arrangement schematic diagram；
Fig. 2 is the positive/negative plate of embodiment two and diaphragm position arrangement schematic diagram；
Fig. 3 is coiling direction instruction schematic diagram；
Fig. 4 is the structural representation of battery core after winding.
In figure：1st, positive plate, 2, negative plate, 3, barrier film.
Embodiment
Presently in connection with accompanying drawing, the present invention is described in detail.This figure is simplified schematic diagram, is only illustrated in a schematic way
The basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
Embodiment one：
As shown in figure 1, a kind of core strueture of the present invention, including positive plate 1, negative plate 2 and barrier film 3, the positive plate 1
For discontinuous structure, corresponding negative plate 2 is continuous structure, and the both sides of positive plate 1 of discontinuous structure are complex as with barrier film 3 respectively
One, it is wound into battery core after compound with the negative plate 2 of corresponding continuous structure again, forms positive plate 1 and negative plate 2 and barrier film 3
Alternately laminated structure, and the different sections of the positive plate 1 of discontinuous structure are located in the different layers of battery core.Discontinuous structure is just
Pole piece 1 is formed by multistage pole piece is spaced apart, and barrier film 3 is continuous structure.The positive plate 1 is including plus plate current-collecting body and just
Pole active material, the negative plate 2 include negative current collector and negative active core-shell material.The positive plate 1 and negative plate 2 are multipole
Ear or full extreme ear structure, and positive and negative lug in battery core homonymy or positive and negative lug in battery core both sides.Preferably, phase in discontinuous structure
The distance between adjacent positive plate 1 is gradually increased from the top wound to the end of winding, can make barrier film 3 and pole piece tension force
It is more uniform.
Embodiment two：
As shown in Fig. 2 the difference of the present embodiment and embodiment one is that negative plate 2 is discontinuous structure, corresponding positive pole
Piece 1 is continuous structure, during making, the both sides of negative plate 2 of discontinuous structure and the composite integrated of barrier film 3 first, then again with continuously
The positive plate 1 of structure is wound together turns into battery core.In discontinuous structure the distance between adjacent cathode piece 2 from the top that winds to
The end of winding gradually increases, and barrier film 3 and pole piece tension force can be made more uniform.
A kind of battery, including the core strueture described in embodiment one or embodiment two.
As shown in Figure 3 and Figure 4, it is the manufacturing process that discontinuous structure illustrates battery core with positive plate 1, first, by positive plate 1
Width requirement according to battery core is cut into that isometric section shape is standby, then according to the thickness of positive plate 1, negative plate 2 and the material of barrier film 3
Calculate the initial distance between adjacent positive piece 1, and the change from winding top to distance between winding end positive plate 1
Amount, positive plate 1 is arranged as discontinuous structure according to required distance, then in the both sides of positive plate 1 of discontinuous structure and barrier film 3
Structure is complex as a whole, finally the winding of negative plate 2 with continuous structure forms battery core.It should be noted that coiling direction be by
Discontinuous structure side is inwardly wound.Arrow represents coiling direction in Fig. 3.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, related staff
Various changes and amendments can be carried out in without departing from the scope of the present invention completely.The technical scope of this invention is not
The content being confined on specification, it is necessary to which its technical scope is determined according to right.
Claims (5)
- A kind of 1. core strueture, it is characterised in that：Including positive plate (1), negative plate (2) and barrier film (3), the positive plate (1) Or negative plate (2) is discontinuous structure, corresponding negative plate (2) or positive plate (1) are continuous structure, the positive pole of discontinuous structure Piece (1) or negative plate (2) both sides are complex as a whole with barrier film (3) respectively, it is compound after discontinuous structure positive plate (1) or negative Pole piece (2) is wound into battery core with the negative plate (2) or positive plate (1) of corresponding continuous structure, forms positive plate (1) and negative plate (2) with the alternately laminated structure of barrier film (3), and the positive plate (1) of discontinuous structure or the different sections of negative plate (2) are located at battery core Different layers in.
- 2. core strueture as claimed in claim 1, it is characterised in that：Adjacent positive piece (1) or adjacent negative in discontinuous structure The distance between pole piece (2) is gradually increased from the top wound to the end of winding.
- 3. core strueture as claimed in claim 2, it is characterised in that：The positive plate (1) includes plus plate current-collecting body and positive pole Active material, the negative plate (2) include negative current collector and negative active core-shell material.
- 4. the core strueture as described in claim any one of 1-3, it is characterised in that：The positive plate (1) and negative plate (2) are Multi pole ears or full extreme ear structure, and positive and negative lug in battery core homonymy or positive and negative lug in battery core both sides.
- A kind of 5. battery, it is characterised in that：Including the core strueture as described in claim any one of 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711267702.6A CN107863552A (en) | 2017-12-05 | 2017-12-05 | A kind of core strueture and the battery using the core strueture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711267702.6A CN107863552A (en) | 2017-12-05 | 2017-12-05 | A kind of core strueture and the battery using the core strueture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107863552A true CN107863552A (en) | 2018-03-30 |
Family
ID=61704747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711267702.6A Withdrawn CN107863552A (en) | 2017-12-05 | 2017-12-05 | A kind of core strueture and the battery using the core strueture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107863552A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265630A (en) * | 2019-06-28 | 2019-09-20 | 蜂巢能源科技有限公司 | A kind of preparation method and device of electrode assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683742A (en) * | 2012-06-12 | 2012-09-19 | 东莞新能源科技有限公司 | Lithium ion battery cell and preparation method thereof |
| CN103746144A (en) * | 2014-01-20 | 2014-04-23 | 深圳市吉阳自动化科技有限公司 | Coiled laminated battery cell and battery |
| CN105870488A (en) * | 2016-04-01 | 2016-08-17 | 深圳吉阳智云科技有限公司 | Battery cell and battery comprising same |
| CN105895966A (en) * | 2016-06-13 | 2016-08-24 | 合肥国轩高科动力能源有限公司 | Preparation method of laminated winding type lithium ion battery roll core |
| CN207459093U (en) * | 2017-12-05 | 2018-06-05 | 中航锂电技术研究院有限公司 | A kind of core strueture and the battery using the core strueture |
-
2017
- 2017-12-05 CN CN201711267702.6A patent/CN107863552A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683742A (en) * | 2012-06-12 | 2012-09-19 | 东莞新能源科技有限公司 | Lithium ion battery cell and preparation method thereof |
| CN103746144A (en) * | 2014-01-20 | 2014-04-23 | 深圳市吉阳自动化科技有限公司 | Coiled laminated battery cell and battery |
| CN105870488A (en) * | 2016-04-01 | 2016-08-17 | 深圳吉阳智云科技有限公司 | Battery cell and battery comprising same |
| CN105895966A (en) * | 2016-06-13 | 2016-08-24 | 合肥国轩高科动力能源有限公司 | Preparation method of laminated winding type lithium ion battery roll core |
| CN207459093U (en) * | 2017-12-05 | 2018-06-05 | 中航锂电技术研究院有限公司 | A kind of core strueture and the battery using the core strueture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265630A (en) * | 2019-06-28 | 2019-09-20 | 蜂巢能源科技有限公司 | A kind of preparation method and device of electrode assembly |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Applicant after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address before: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant before: Kaibo Energy Technology Co.,Ltd. Applicant before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant after: Kaibo Energy Technology Co.,Ltd. Applicant after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address before: No.88 Jintan Avenue, Jintan District, Changzhou City, Jiangsu Province Applicant before: CHINA AVIATION LITHIUM BATTERY RESEARCH INSTITUTE Co.,Ltd. Applicant before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220111 Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Applicant after: Zhongchuangxin Aviation Technology Co.,Ltd. Address before: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant before: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Applicant before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Applicant after: China Innovation Aviation Technology Group Co.,Ltd. Address before: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Applicant before: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Country or region before: China Applicant before: Zhongchuangxin Aviation Technology Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180330 |
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| WW01 | Invention patent application withdrawn after publication |