CN208548421U - A kind of volume needle improving electric core winding deformation - Google Patents
A kind of volume needle improving electric core winding deformation Download PDFInfo
- Publication number
- CN208548421U CN208548421U CN201820155913.4U CN201820155913U CN208548421U CN 208548421 U CN208548421 U CN 208548421U CN 201820155913 U CN201820155913 U CN 201820155913U CN 208548421 U CN208548421 U CN 208548421U
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- Prior art keywords
- volume
- heater
- volume needle
- needle
- electric core
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- 238000004804 winding Methods 0.000 title claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000007731 hot pressing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
-
- 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)
Abstract
The utility model belongs to battery production manufacturing technology field more particularly to a kind of volume needle for improving electric core winding deformation, including volume needle ontology, is provided with heater and temperature detector in the volume needle ontology.Compared with the prior art, the utility model is by being arranged heater and temperature detector in volume needle ontology, heating heating is carried out to volume needle by heater, temperature-sensitive feedback is carried out by temperature detector, to carry out accurate temperature control to volume wire surface, volume wire surface temperature is set to maintain 70 DEG C or so, therefore, the utility model can increase the temperature inside battery core in the case where not influencing battery core performance, avoid the problem that battery core causes the bond effect of isolation film and pole piece to be deteriorated and be easy to happen winding deformation in subsequent hot pressing process since internal temperature is too low.
Description
Technical field
The utility model belongs to battery production manufacturing technology field more particularly to a kind of volume for improving electric core winding deformation
Needle.
Background technique
With the development of modern society and the enhancing of people's environmental consciousness, more and more equipment select using lithium battery as
Power supply, such as mobile phone, laptop, electric tool and electric car, this is provided extensively for the application of lithium battery with development
Wealthy space.Wherein, lithium battery used in electric tool and electric car etc. is commonly referred to as power battery.
Wherein, around up- coiler after existing electrical core of power battery is generally stacked gradually by anode strip, isolation film and cathode sheets
Volume needle wind, carry out hot pressing shaping again after the completion of winding；However, finding in actual production, existing rolling step is adopted
Be wound and had the disadvantage that under 1) normal temperature state with tension decline mode, anode and cathode pole piece internal stress is big, especially before
A few circle winding tensions are big, and the naked battery core after winding and chemical conversion easily deforms；2) battery core is by anode and cathode pole piece coiling multi-turn shape
At in hot pressing trimming, since the number of plies excessively causes battery core internal temperature climbing speed slow, battery core internal temperature is low, pole piece
Poor with isolation film adhesive effect, the naked battery core after winding and chemical conversion easily deforms.
In view of this, it is necessory to provide a kind of technical solution that can be effectively improved electric core winding deformation.
Utility model content
The purpose of this utility model is that: in view of the deficiencies of the prior art, and core coil can be effectively improved by providing one kind
Winding tension and speed are improved, the hot pressing effect and battery core of battery core are improved to reduce the deformation extent of battery core around the volume needle of deformation
Performance.
To achieve the goals above, the utility model uses following solution:
A kind of volume needle improving electric core winding deformation, including volume needle ontology, be provided in the volume needle ontology heater and
Temperature detector.Wherein, heater and temperature detector pass through power supply line respectively and connect (Programmable logical controller with external PLC system
Device), to realize the purpose for carrying out any temperature control to volume needle.
The preferred embodiment of volume needle as improvement electric core winding deformation described in the utility model, the volume needle ontology use
High temperature resistant material is made, heat resisting temperature >=75 DEG C.
The preferred embodiment of volume needle as improvement electric core winding deformation described in the utility model, the heater are electromagnetism
Formula heater, resistance type heater or infrared heater.
The preferred embodiment of volume needle as improvement electric core winding deformation described in the utility model, the resistance type heater
For one of PTC heater, heating tube, heater strip, heating sheet or combinations thereof.
The preferred embodiment of volume needle as improvement electric core winding deformation described in the utility model, the volume needle ontology include
Mounting portion and the winder for being connected to the mounting portion.
The preferred embodiment of volume needle as improvement electric core winding deformation described in the utility model, the end of the winder are cut
Face showing ellipsoidal structure.
The preferred embodiment of volume needle as improvement electric core winding deformation described in the utility model, the volume needle ontology include
The needles of volume the first half and the needles of volume the second half, the needle of volume the first half and needle of volume the second half is opposite and separable setting.Using group
Closing volume needle can arbitrarily be stretched, instant rolled around run-bake-needle fault after the completion.
The preferred embodiment of volume needle as improvement electric core winding deformation described in the utility model, the needle packet of volume the first half
It includes the first half mounting portions and is connected to the first half winders of the first half mounting portions, the needle of volume the second half includes the second half installations
Portion and the second half winders for being connected to the second half mounting portions, the first half mounting portion and the second half mounting portions combine to form institute
State mounting portion, the first half winder combines to form the winder with the second half winder.
The preferred embodiment of volume needle as improvement electric core winding deformation described in the utility model, shape in the volume needle ontology
At there is accommodating cavity, the heater is arranged in the accommodating cavity.
The preferred embodiment of volume needle as improvement electric core winding deformation described in the utility model, the temperature detector setting exist
On the inner wall of the accommodating cavity.
The utility model has the beneficial effects that: a kind of volume needle for improving electric core winding deformation of the utility model, including volume
Needle ontology is provided with heater and temperature detector in the volume needle ontology.Compared with the prior art, the utility model passes through in volume needle
Setting heater and temperature detector in ontology carry out heating heating to volume needle by heater, carry out temperature-sensitive feedback by temperature detector,
To carry out accurate temperature control to volume wire surface, make to roll up wire surface temperature and maintain 70 DEG C or so, therefore, the utility model can be
It does not influence to increase the temperature inside battery core in the case where battery core performance, avoids battery core in subsequent hot pressing process due to internal temperature
It spends low and the bond effect of isolation film and pole piece is caused to be deteriorated and be easy to happen the problem of winding deforms.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structure sectional view of the utility model.
In figure: 1- mounting portion；2- winder；21- accommodating cavity；3- heater；4- temperature detector；11- needles of volume the first half；111-
The first half mounting portions；The first half winder of 112-；12- needles of volume the second half；The second half mounting portion of 121-；The second half winding of 122-
Portion.
Specific embodiment
To keep the technical solution of the utility model and advantage clearer, below in conjunction with specific embodiment and specification
Attached drawing is described in further detail the utility model and its advantages, but the embodiments of the present invention is not limited to
This.
As shown in Fig. 1~2, a kind of volume needle improving electric core winding deformation, including volume needle ontology, it rolls up and is provided in needle ontology
Heater 3 and temperature detector 4.Wherein, volume needle ontology is made of high temperature resistant material, heat resisting temperature >=75 DEG C.Roll up needle ontology packet
It includes mounting portion 1 and is connected to the winder 2 of mounting portion 1, the end section showing ellipsoidal structure of winder 2；In use, passing through installation
Portion 1 is installed on the winder, and winder 2 is for winding battery core.Wherein, heater 3 and temperature detector 4 are respectively by power supply line and outer
The PLC system in portion connects (programmable logic controller (PLC)), to realize the purpose for carrying out any temperature control to volume needle.
Wherein, heater 3 is electromagnetic type heater, resistance type heater or infrared heater；Resistance type heater is
One of PTC heater, heating tube, heater strip, heating sheet or combinations thereof.
Wherein, it rolls up and is formed with accommodating cavity 21 in needle ontology, heater 3 is arranged in accommodating cavity 21；The setting of temperature detector 4 is being held
On the inner wall for setting chamber 21.
Preferably, volume needle ontology includes the needles 11 of volume the first half and the needles 12 of volume the second half, the needles 11 of volume the first half and volume the second half
Needle 12 is opposite and separates setting；The needles 11 of volume the first half include the first half mounting portions 111 and are connected to the first half mounting portions 111
The first half winders 112, the needles 12 of volume the second half include the second half mounting portions 121 and are connected to the second of the second half mounting portions 121
Half winder 122, the first half mounting portions 111 and the second half combinations of mounting portion 121 form mounting portion 1, the first half winders 112 with
The second half combinations of winder 122 form winder 2.It can arbitrarily be stretched using combine volume needle, it is instant rolled around after the completion
Run-bake-needle fault.
Compared with the prior art, the utility model is by being arranged heater 3 and temperature detector 4 in volume needle ontology, by adding
3 pairs of volume needles of hot device carry out heating heating, carry out temperature-sensitive feedback by temperature detector 4, to carry out accurate temperature control to volume wire surface, make
Volume wire surface temperature maintains 70 DEG C or so, and therefore, the utility model can increase electricity in the case where not influencing battery core performance
The temperature of core inner avoids battery core from leading to the viscous of isolation film and pole piece since internal temperature is too low in subsequent hot pressing process
Knot effect is deteriorated and is easy to happen the problem of winding deformation, to be effectively improved the hot pressing effect and battery core performance of battery core.
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and is modified.Therefore, the utility model is not limited to above-mentioned specific embodiment, all this field skills
It is practical new that art personnel any conspicuous improvement made on the basis of the utility model, replacement or modification belong to this
The protection scope of type.In addition, these terms are intended merely to facilitate although using some specific terms in this specification
It is bright, any restrictions are not constituted to the utility model.
Claims (9)
1. a kind of volume needle for improving electric core winding deformation, it is characterised in that: including rolling up needle ontology, be provided in the volume needle ontology
Heater and temperature detector, the heater are used to carry out the volume needle heating heating, and the temperature detector is anti-for carrying out temperature-sensitive
Feedback is to carry out temperature control to the volume wire surface.
2. the volume needle according to claim 1 for improving electric core winding deformation, it is characterised in that: the heater is electromagnetic type
Heater, resistance type heater or infrared heater.
3. the volume needle according to claim 2 for improving electric core winding deformation, it is characterised in that: the resistance type heater is
One of PTC heater, heating tube, heater strip, heating sheet or combinations thereof.
4. the volume needle according to claim 1 for improving electric core winding deformation, it is characterised in that: the volume needle ontology includes peace
Dress portion and the winder for being connected to the mounting portion.
5. the volume needle according to claim 4 for improving electric core winding deformation, it is characterised in that: the end section of the winder
Showing ellipsoidal structure.
6. the volume needle according to claim 1 for improving electric core winding deformation, it is characterised in that: the volume needle ontology includes the
Half rolls up needle and the needles of volume the second half, the needle of volume the first half and needle of volume the second half is opposite and separable setting.
7. the volume needle according to claim 6 for improving electric core winding deformation, it is characterised in that: the needle of volume the first half includes
The first half mounting portions and the first half winders for being connected to the first half mounting portions, the needle of volume the second half include the second half mounting portions
And the second half winders of the second half mounting portions are connected to, the first half mounting portion and the second half mounting portions combine to form installation
Portion, the first half winder combine to form winder with the second half winder.
8. the volume needle according to claim 1 for improving electric core winding deformation, it is characterised in that: formed in the volume needle ontology
There is accommodating cavity, the heater is arranged in the accommodating cavity.
9. the volume needle according to claim 8 for improving electric core winding deformation, it is characterised in that: the temperature detector is arranged in institute
It states on the inner wall of accommodating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820155913.4U CN208548421U (en) | 2018-01-30 | 2018-01-30 | A kind of volume needle improving electric core winding deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820155913.4U CN208548421U (en) | 2018-01-30 | 2018-01-30 | A kind of volume needle improving electric core winding deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208548421U true CN208548421U (en) | 2019-02-26 |
Family
ID=65417318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820155913.4U Active CN208548421U (en) | 2018-01-30 | 2018-01-30 | A kind of volume needle improving electric core winding deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208548421U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171777A (en) * | 2022-02-15 | 2022-03-11 | 江苏时代新能源科技有限公司 | Winding apparatus and winding method |
| WO2023029699A1 (en) * | 2021-08-30 | 2023-03-09 | 宁德时代新能源科技股份有限公司 | Winding device and winding method |
| CN116053561A (en) * | 2023-04-03 | 2023-05-02 | 宁德时代新能源科技股份有限公司 | Winding device, winding apparatus, and method for producing electrode assembly |
-
2018
- 2018-01-30 CN CN201820155913.4U patent/CN208548421U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023029699A1 (en) * | 2021-08-30 | 2023-03-09 | 宁德时代新能源科技股份有限公司 | Winding device and winding method |
| CN114171777A (en) * | 2022-02-15 | 2022-03-11 | 江苏时代新能源科技有限公司 | Winding apparatus and winding method |
| CN116053561A (en) * | 2023-04-03 | 2023-05-02 | 宁德时代新能源科技股份有限公司 | Winding device, winding apparatus, and method for producing electrode assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220125 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: 211100 69, Feitian Road, Jiangning Airport Economic Development Zone, Nanjing, Jiangsu Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: SHENZHEN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |