CN207800757U - A kind of electrodes of lithium-ion batteries and lithium ion battery - Google Patents
A kind of electrodes of lithium-ion batteries and lithium ion battery Download PDFInfo
- Publication number
- CN207800757U CN207800757U CN201721782400.8U CN201721782400U CN207800757U CN 207800757 U CN207800757 U CN 207800757U CN 201721782400 U CN201721782400 U CN 201721782400U CN 207800757 U CN207800757 U CN 207800757U
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- lithium
- thermally conductive
- conductive sheet
- electrodes
- left white
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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
Abstract
The utility model provides a kind of electrodes of lithium-ion batteries, including pole piece ontology, lug and thermally conductive sheet；The pole piece ontology includes first surface and the second surface opposite with the first surface, and the first surface and second surface are coated with active slurry, the first surface and second surface and are left white area with multiple uncoated active slurries；One end of the lug is welded in being left white in area of the first surface, and the other end of the lug exceeds an edge of the pole piece ontology；The thermally conductive sheet is set on the first surface and the covering lug is welded in described one end for being left white area.The utility model also provides a kind of lithium ion battery.Electrodes of lithium-ion batteries and lithium ion battery provided by the utility model, improve heat dissipation performance, can be substantially reduced battery charging and discharging Wen Sheng, improve security performance；Also, reduce the later stage be grouped into reduce temperature input by equipment and process, operating method is simple and production efficiency is high.
Description
【Technical field】
The utility model is related to technical field of lithium ion more particularly to a kind of electrodes of lithium-ion batteries and lithium-ion electric
Pond.
【Background technology】
Lithium ion battery has higher energy density and long-life, the extensive use in each type electric tool.And
In charge and discharge process, especially high rate charge-discharge, lithium ion battery generate heat seriously, and internal temperature of battery is excessively high, and damage is negative
Pole active material；Also, for soft-package battery, fever can excessively lead to battery bulge even exploding and firing, for cylinder
For battery, fever can excessively cause battery core to break unlatching and then scrap, and economic loss and health risk are caused to consumer.
Currently, improve battery-heating method be typically start with from block structure in terms of, lithium ion battery in groups when, general
Condensing unit equipped with flowing cooling water is put into Battery case, to achieve the purpose that cool down to lithium ion battery, increases group
It fills process and complexity, use cost and later maintenance cost is higher.
In consideration of it, it is really necessary to provide a kind of novel electrodes of lithium-ion batteries and lithium ion battery to overcome above lack
It falls into.
【Utility model content】
The purpose of this utility model, which is to provide one kind, can improve lithium ion battery heat dissipation performance, be substantially reduced battery charge and discharge
Electric Wen Sheng, improve security performance, set about dropping low-temperature-rise from single battery, reduce equipment and process, operation that the later stage puts into groups
The electrodes of lithium-ion batteries and lithium ion battery that method is simple and production efficiency is high.
To achieve the goals above, the utility model provides a kind of electrodes of lithium-ion batteries, including pole piece ontology, lug and
Thermally conductive sheet；The pole piece ontology includes first surface and the second surface opposite with the first surface, the first surface and
Second surface is coated with active slurry, and the first surface and second surface have being left white for multiple uncoated active slurries
Area；One end of the lug is welded in being left white in area of the first surface, and the other end of the lug exceeds the pole piece sheet
One edge of body；The thermally conductive sheet is set on the first surface and being welded in for the covering lug described is left white area
One end.
In a preferred embodiment, the second surface be left white area and the first surface be left white zone position phase
Pair and it is equal in magnitude, thermally conductive sheet is provided on the second surface, the thermally conductive sheet on the second surface is set to and the first table
Opposite position at the soldering polar ear in face.
In a preferred embodiment, the pole piece ontology is rectangle, including a pair of opposite long side and a pair are relatively
Short side, it is described to be left white that area is rectangle and multiple to be left white area equally spaced arranged side by side on the direction of the long side.
In a preferred embodiment, two opposite edges for being left white area are flat with a pair of opposite long side respectively
Together, described other two opposite edge for being left white area connects two opposite long sides and vertical with the long side.
In a preferred embodiment, the thermally conductive sheet is graphene thermally conductive sheet, and the thickness of the thermally conductive sheet is 0.02
~0.08mm.
In a preferred embodiment, one end of the thermally conductive sheet is prolonged to one end of the lug beyond pole piece body edges
It stretches, and the wherein 0.01~0.05mm of long side beyond pole piece ontology.
In a preferred embodiment, the side of the close first surface of the thermally conductive sheet is provided with viscose, institute
Thermally conductive sheet is stated to attach on the first surface by viscose.
In a preferred embodiment, further include insulating paper, the insulating paper is covered on thermally conductive sheet.
The utility model also provides a kind of lithium ion battery, including the electrodes of lithium-ion batteries described in above-mentioned any one.
Compared with the prior art, electrodes of lithium-ion batteries and lithium ion battery provided by the utility model, by insulation performance
And the good thermally conductive sheet of heat conductivility be covered on lug be welded in described one end for being left white area, improve dissipating for lithium ion battery
Hot property can be substantially reduced battery charging and discharging Wen Sheng, improve security performance；Also, sets about dropping low-temperature-rise from single battery, reduce
Later stage is grouped into the equipment and process reduced input by temperature, and operating method is simple and production efficiency is high.
【Description of the drawings】
Fig. 1 is the structural schematic diagram of the first surface of electrodes of lithium-ion batteries provided by the utility model；
Fig. 2 is the structural schematic diagram of the second surface of electrodes of lithium-ion batteries provided by the utility model.
【Specific implementation mode】
It is clear in order to make the purpose of this utility model, technical solution and advantageous effects be more clear, below in conjunction with attached
Figure and specific implementation mode, the present invention will be further described in detail.It should be understood that described in this specification
Specific implementation mode is not intended to limit the utility model just for the sake of explaining the utility model.
It please refers to Fig.1 and Fig. 2, the utility model provides a kind of electrodes of lithium-ion batteries 100, including pole piece ontology 10, pole
Ear 20 and thermally conductive sheet 30.
The pole piece ontology 10 includes first surface 101 and the second surface 102 opposite with the first surface 101, institute
It states first surface 101 and second surface 102 is coated with active slurry, the first surface 101 and second surface 102 have more
A uncoated active slurry is left white area 103；What one end of the lug 20 was welded in the first surface 101 is left white area 103
Interior, the other end of the lug 20 exceeds an edge of the pole piece ontology 10；The thermally conductive sheet 30 is set to described first
On surface 101 and the covering lug 20 is welded in described one end for being left white area 103.Surpass specifically, the lug 20 passes through
Sound wave is left white area 103 described in being welded in.
The pole piece ontology 10 is rectangle, including a pair of opposite long side 11 and a pair of opposite short side 12, described to be left white
Area 103 is rectangle and multiple areas 103 that are left white are equally spaced arranged side by side on the direction of the long side 11, the first surface
101 be left white area 103 and second surface 102 to be left white 103 position of area opposite and equal in magnitude, set on the second surface 102
It is equipped with thermally conductive sheet 30, the thermally conductive sheet 30 on the second surface 102 is set to opposite at the soldering polar ear of first surface 101
Position.Specifically, two opposite edges for being left white area 103 are concordant with a pair of opposite long side 11 respectively, it is left white area
103 other two opposite edge connects two opposite long sides 11 and vertical with the long side 11.
The thermally conductive sheet 30 is graphene thermally conductive sheet, by resin, graphene, fire retardant, coupling agent, dispersant, antioxidant
Formed with auxiliary agent, the auxiliary agent is the mixture being made of magnesia, aluminium oxide and silicon carbide, the heat dissipation performance of thermally conductive sheet 30 and
Insulation performance is good；The thickness of the thermally conductive sheet is 0.02~0.08mm.One end of the thermally conductive sheet 30 is to beyond pole piece ontology
One end of the lug 20 at 10 edges extends, and the wherein 0.01~0.05mm of long side beyond pole piece ontology 10, the thermally conductive sheet
30 other end must not exceed another long side 11 opposite with the long side of pole piece ontology 10, specifically, the thermally conductive sheet 30
The other end cover the lug 20 be welded in described one end for being left white area 103.
Specifically, the thermally conductive sheet 30 is provided with viscose, the thermally conductive sheet 30 close to the side of the first surface 101
It is attached on the first surface 101 by viscose.
In other embodiments, electrodes of lithium-ion batteries 100 provided by the utility model, further includes insulating paper, described
Insulating paper is covered on thermally conductive sheet 30.
The utility model also provides a kind of lithium ion battery, including above-mentioned electrodes of lithium-ion batteries 100.
Table 1 is to be fabricated to lithium ion battery to electrodes of lithium-ion batteries 100 provided by the utility model, to lithium ion battery
The upper, middle and lower upper bit temperature that discharge rise the temperature table of comparisons obtained after test, wherein comparative example is the welding of lug 20
Thermally conductive sheet 30 is not covered in described one end for being left white area 103 and only covers insulating paper；Embodiment 1 is that being welded in for lug 20 is described
It is left white one end covering thermally conductive sheet 30 in area 103；Embodiment 2 is that one end covering for being left white area 103 that is welded in of lug 20 is led
After backing 30, then insulating paper is covered on thermally conductive sheet 30；It is as follows to specific temperature rise result：
Table 1：
As shown in table 1, the temperature of embodiment 1 and embodiment 2, which rises, is respectively less than comparative example, and illustrate lug 20 is welded in described stay
The one end in white area 103 covers thermally conductive sheet 30, and the heat that battery discharge generates can shed faster, drop low-temperature-rise, improve
The security performance of lithium ion battery.
Electrodes of lithium-ion batteries 100 and lithium ion battery provided by the utility model, insulation performance and heat conductivility is good
What good thermally conductive sheet 30 was covered on lug 20 is welded in described one end for being left white area 103, improves the thermal diffusivity of lithium ion battery
Can, it can be substantially reduced battery charging and discharging Wen Sheng, improve security performance；Also, set about dropping low-temperature-rise from single battery, after reducing
Phase is grouped into the equipment and process reduced input by temperature, and operating method is simple and production efficiency is high.
The utility model is not only in the description and the implementation described, therefore for the personnel of familiar field
For other advantage and modification is easily implemented, therefore without departing substantially from universal defined by claim and equivalency range
Spirit and scope in the case of, the utility model is not limited to specific details, representative equipment and shown here as with retouch
The diagram example stated.
Claims (9)
1. a kind of electrodes of lithium-ion batteries, it is characterised in that：Including pole piece ontology, lug and thermally conductive sheet；The pole piece ontology packet
First surface and the second surface opposite with the first surface are included, the first surface and second surface are coated with active slurry
Material, the first surface and second surface are left white area with multiple uncoated active slurries；One end of the lug is welded in
The first surface is left white in area, and the other end of the lug exceeds an edge of the pole piece ontology；The thermally conductive sheet
It is set on the first surface and the covering lug is welded in described one end for being left white area.
2. electrodes of lithium-ion batteries as described in claim 1, it is characterised in that：The second surface is left white area and described the
One surface to be left white zone position opposite and equal in magnitude, thermally conductive sheet is provided on the second surface, on the second surface
Thermally conductive sheet is set to position opposite at the soldering polar ear with first surface.
3. electrodes of lithium-ion batteries as claimed in claim 2, it is characterised in that：The pole piece ontology is rectangle, including a pair
Opposite long side and a pair of opposite short side, it is described to be left white that area is rectangle and multiple to be left white area equally spaced in the side of the long side
It is arranged side by side upwards.
4. electrodes of lithium-ion batteries as claimed in claim 3, it is characterised in that：Two opposite edges for being left white area point
It is not concordant with a pair of opposite long side, described other two opposite edge for being left white area connect two opposite long sides and with institute
It is vertical to state long side.
5. electrodes of lithium-ion batteries as claimed in claim 4, it is characterised in that：The thermally conductive sheet is graphene thermally conductive sheet, institute
The thickness for stating thermally conductive sheet is 0.02~0.08mm.
6. electrodes of lithium-ion batteries as claimed in claim 5, it is characterised in that：One end of the thermally conductive sheet is to beyond pole piece sheet
One end of the lug at body edge extends, and the wherein 0.01~0.05mm of long side beyond pole piece ontology.
7. electrodes of lithium-ion batteries as claimed in claim 6, it is characterised in that：The close first surface of the thermally conductive sheet
Side be provided with viscose, the thermally conductive sheet is attached to by viscose on the first surface.
8. electrodes of lithium-ion batteries as claimed in claim 7, it is characterised in that：Further include insulating paper, the insulating paper pastes
In on thermally conductive sheet.
9. a kind of lithium ion battery, it is characterised in that：It include the lithium ion cell electrode as described in claim 1~8 any one
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721782400.8U CN207800757U (en) | 2017-12-19 | 2017-12-19 | A kind of electrodes of lithium-ion batteries and lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721782400.8U CN207800757U (en) | 2017-12-19 | 2017-12-19 | A kind of electrodes of lithium-ion batteries and lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207800757U true CN207800757U (en) | 2018-08-31 |
Family
ID=63281523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721782400.8U Active CN207800757U (en) | 2017-12-19 | 2017-12-19 | A kind of electrodes of lithium-ion batteries and lithium ion battery |
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|---|---|
| CN (1) | CN207800757U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993872A (en) * | 2019-12-26 | 2020-04-10 | 东莞市沃泰通新能源有限公司 | Lithium iron phosphate cylindrical battery |
| CN111180738A (en) * | 2019-06-28 | 2020-05-19 | 宁德时代新能源科技股份有限公司 | Electrode plate and electrochemical device |
-
2017
- 2017-12-19 CN CN201721782400.8U patent/CN207800757U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180738A (en) * | 2019-06-28 | 2020-05-19 | 宁德时代新能源科技股份有限公司 | Electrode plate and electrochemical device |
| CN111180738B (en) * | 2019-06-28 | 2021-07-30 | 宁德时代新能源科技股份有限公司 | Electrode plate and electrochemical device |
| US11611064B2 (en) | 2019-06-28 | 2023-03-21 | Contemporary Amperex Technology Co., Limited | Electrode plate having relatively thin conductive layer, electrochemical apparatus, and apparatus thereof |
| CN110993872A (en) * | 2019-12-26 | 2020-04-10 | 东莞市沃泰通新能源有限公司 | Lithium iron phosphate cylindrical battery |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191023 Address after: 518000 Shenyu Science and Technology Park, No. 68 Lanjingbei Road, Laokeng Community, Longtian Street, Pingshan District, Shenzhen City, Guangdong Province, 101 Patentee after: Shenzhen Anding New Energy Technology Development Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Pingshan Pingshan Zhu Keng industrial zone 3, 4 Building Community Patentee before: Shenzhen Optimum Battery Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 3C, building 5, qiaochengfang, 4080 Qiaoxiang Road, Gaofa community, Shahe street, Nanshan District, Shenzhen, Guangdong Patentee after: Baolixin (Shenzhen) new energy technology development Co.,Ltd. Address before: 518000 workshop 101, No. 3, Shenyu science and Technology Park, No. 68, Lanjing North Road, Laokeng community, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Anding New Energy Technology Development Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220309 Address after: 010000 plant 1, Chunguang Road, Jinshan Development Zone, tumed Left Banner, Hohhot City, Inner Mongolia Autonomous Region Patentee after: Baolixin (Inner Mongolia) Battery Co.,Ltd. Address before: 518000 3C, building 5, qiaochengfang, 4080 Qiaoxiang Road, Gaofa community, Shahe street, Nanshan District, Shenzhen, Guangdong Patentee before: Baolixin (Shenzhen) new energy technology development Co.,Ltd. |