CN207459093U - 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
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- CN207459093U CN207459093U CN201721669675.0U CN201721669675U CN207459093U CN 207459093 U CN207459093 U CN 207459093U CN 201721669675 U CN201721669675 U CN 201721669675U CN 207459093 U CN207459093 U CN 207459093U
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- plate
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- positive plate
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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 provides a kind of core strueture and the battery using the core strueture, core strueture includes positive plate, negative plate and membrane, 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 respectively with membrane, after compound battery core is wound into the negative plate of corresponding continuous structure or positive plate again, positive plate and negative plate and the alternately stacked structure of membrane 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 membrane is continuous structure.One of pole piece of the core strueture is continuous structure, another is discontinuous structure, the characteristics of so as to using the manufacture craft of winding, have both production efficiency high and even tension.
Description
Technical field
The utility model is related to technical field of lithium batteries, more particularly to a kind of core strueture and using the core strueture
Battery.
Background technology
Lithium ion battery is a kind of battery with higher energy density and good environmental-protecting performance, high, reliable with energy
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, membrane and negative plate, between membrane
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 membrane are cut into it is sectional, then
It is stacked again, low production efficiency；2nd, it is high to wind core strueture production efficiency, but pole piece and membrane tension are difficult to control, 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.
Utility model content
Technical problem to be solved in the utility model is：In order to overcome deficiency of the prior art, the utility model carries
A kind of battery for core strueture and using the core strueture.
The utility model solves its technical problem technical solution to be taken：A kind of core strueture, including positive plate,
Negative plate and membrane, the positive plate or negative plate are discontinuous structure, and corresponding negative plate or positive plate are continuous structure, non-
The positive plate of continuous structure or negative plate both sides are complex as a whole respectively with membrane, negative with corresponding continuous structure again after compound
Pole piece or positive plate are wound into battery core, form positive plate and negative plate and the alternately stacked structure of membrane, and discontinuous structure
The different sections of positive plate 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
Formation spaced apart, membrane are continuous structure.One of pole piece of the core strueture is continuous structure, another is discontinuous
Structure, the characteristics of so as to using the manufacture craft of winding, have both production efficiency high and even tension.
Further, since 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 beginning wound to the end of winding.It can make membrane
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 electrode active 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：
It illustrates 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 spare, then according to the thickness gauge of positive plate, negative plate and diaphragm material calculate adjacent positive piece between it is initial away from
From and from winding beginning distance between winding end positive plate variable quantity, according to required distance by positive plate arrangement be
Then discontinuous structure is complex as a whole structure in the positive plate both sides of discontinuous structure and membrane, finally with continuous structure
Negative plate winds to form battery core.It should be noted that coiling direction is inwardly wound by discontinuous structure one side.
The beneficial effects of the utility model are：1st, compared to lamination battery core, have the characteristics that production efficiency is high；2nd, compare
Winding-structure battery core, have the characteristics that membrane and pole piece tension force more uniformly, the effective width bigger of battery core.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is one positive/negative plate of embodiment and diaphragm position arrangement schematic diagram；
Fig. 2 is two positive/negative plate of embodiment and diaphragm position arrangement schematic diagram；
Fig. 3 is coiling direction instruction schematic diagram；
Fig. 4 is the structure diagram of battery core after winding.
In figure：1st, positive plate, 2, negative plate, 3, membrane.
Specific embodiment
The utility model is described in detail presently in connection with attached drawing.This figure is simplified schematic diagram, only in a schematic way
Illustrate the basic structure of the utility model, therefore it only shows the composition related with the utility model.
Embodiment one：
As shown in Figure 1, a kind of core strueture of the utility model, including positive plate 1, negative plate 2 and membrane 3, it is described just
Pole piece 1 is discontinuous structure, and corresponding negative plate 2 is continuous structure, 1 both sides of positive plate of discontinuous structure respectively with membrane 3
Be complex as a whole, be wound into battery core after compound with the negative plate of corresponding continuous structure 2 again, formed positive plate 1 and negative plate 2 with
3 alternately stacked structure of membrane, and the different sections of the positive plate 1 of discontinuous structure are located in the different layers of battery core.Discontinuous knot
The positive plate 1 of structure is formed by multistage pole piece is spaced apart, and membrane 3 is continuous structure.The positive plate 1 includes anode collection
Body and positive electrode active materials, the negative plate 2 include negative current collector and negative electrode active material.The positive plate 1 and negative plate 2
For 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.Preferably, discontinuous knot
The distance between adjacent positive piece 1 is gradually increased from the beginning wound to the end of winding in structure, can make membrane 3 and pole piece
Power control is more uniform.
Embodiment two：
As shown in Fig. 2, the difference between this embodiment and the first embodiment lies in negative plate 2 be discontinuous structure, corresponding anode
Piece 1 is continuous structure, during making, 2 both sides of negative plate of discontinuous structure and 3 composite integrated of membrane first, then again with continuously
The positive plate 1 of structure is wound together as battery core.In discontinuous structure the distance between adjacent cathode piece 2 from the beginning that winds to
The end of winding gradually increases, and membrane 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, the manufacturing process of battery core is illustrated for discontinuous structure with positive plate 1, first, by positive plate 1
Width requirement according to battery core is cut into that isometric section shape is spare, then according to the thickness of 3 material of positive plate 1, negative plate 2 and membrane
Calculate the initial distance between adjacent positive piece 1 and the variation from winding beginning distance between winding end positive plate 1
Amount arranges positive plate 1 for discontinuous structure according to required distance, then in 1 both sides of positive plate of discontinuous structure and membrane 3
Structure is complex as a whole, finally forms battery core with the winding of the negative plate of continuous structure 2.It should be noted that coiling direction be by
Discontinuous structure one side is inwardly wound.Arrow represents coiling direction in Fig. 3.
Using the above-mentioned desirable embodiment according to the utility model as enlightenment, by above-mentioned description, relevant work
Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model
Technical scope is not limited to the content on specification, it is necessary to determine its technical scope according to right.
Claims (5)
1. a kind of core strueture, it is characterised in that：Including positive plate (1), negative plate (2) and membrane (3), the positive plate (1)
Or negative plate (2) is discontinuous structure, corresponding negative plate (2) or positive plate (1) are continuous structure, the anode of discontinuous structure
Piece (1) or negative plate (2) both sides are complex as a whole respectively with membrane (3), 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 membrane (3) alternately stacked structure, 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 described 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 beginning 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 anode
Active material, the negative plate (2) include negative current collector and negative electrode active material.
4. such as claim 1-3 any one of them core struetures, 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.
5. a kind of battery, it is characterised in that：Including such as claim 1-4 any one of them core strueture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721669675.0U CN207459093U (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 |
|---|---|---|---|
| CN201721669675.0U CN207459093U (en) | 2017-12-05 | 2017-12-05 | A kind of core strueture and the battery using the core strueture |
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| Publication Number | Publication Date |
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| CN207459093U true CN207459093U (en) | 2018-06-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863552A (en) * | 2017-12-05 | 2018-03-30 | 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 |
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2017
- 2017-12-05 CN CN201721669675.0U patent/CN207459093U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863552A (en) * | 2017-12-05 | 2018-03-30 | 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address before: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Patentee before: Kaibo Energy Technology Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 166 Kejiao Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: Kaibo Energy Technology Co.,Ltd. Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Address before: No.88 Jintan Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee before: CHINA AVIATION LITHIUM BATTERY RESEARCH INSTITUTE Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. |
|
| CP03 | Change of name, title or address |