CN205911379U - Naked electric core - Google Patents
Naked electric core Download PDFInfo
- Publication number
- CN205911379U CN205911379U CN201620811147.3U CN201620811147U CN205911379U CN 205911379 U CN205911379 U CN 205911379U CN 201620811147 U CN201620811147 U CN 201620811147U CN 205911379 U CN205911379 U CN 205911379U
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- China
- Prior art keywords
- pole piece
- hollow
- out parts
- anodal
- battery core
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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
-
- 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 belongs to the technical field of lithium ion battery, especially, relate to a naked electric core, including anodal pole piece, negative pole pole piece, barrier film, anodal utmost point ear and negative pole utmost point ear, the barrier film is between anodal pole piece and negative pole pole piece, and anodal utmost point ear welds on anodal pole piece, and negative pole utmost point ear welds on the negative pole pole piece, anodal pole piece is provided with first fretwork portion. Compared with the prior art, the utility model discloses a be provided with fretwork portion on the anodal pole piece, the naked electric core who utilizes its coiling to make can fold, and electric core area microminiaturization and shape more is multivariable to little compact battery's energy density and assembly efficiency have been promoted.
Description
Technical field
This utility model belongs to technical field of lithium ion, more particularly, to a kind of naked battery core.
Background technology
With the development of wearable smart machine, market to microminiature lithium ion battery, particularly high-energy volume ratio and
The demand of the flexible packing lithium ion battery of high performance-price ratio is increasing.On market, the price of small battery is by the energy density of product
And the surcharge that the specificity of shape and irreplaceability bring dominates.That is, the energy density of small battery is got over
Height, the specificity of shape and irreplaceability its product market stronger is wider, and price is higher.
With respect to medium-and-large-sized lithium ion battery (usual capacity>2000mah), microminiature lithium ion battery (usual capacity<
In cost structure 500mah), Material Cost (i.e. bom cost) proportion is less, and its prime cost is configured to cost of labor
And manufacturing expense, and control cost of labor and the key of manufacturing expense to be an up production efficiency.
Therefore, improve microminiature flexible packing lithium ion battery production efficiency and lifted small battery energy density simultaneously
It is allowed to more microminaturization most important to the cost performance of lifting microminiature flexible packing lithium ion battery and the market competitiveness.
Content of the invention
The purpose of this utility model is: for the deficiencies in the prior art, and provides a kind of naked battery core, if this battery core has
Dry hollow-out parts, while ensureing battery quality, it also has higher energy density.
To achieve these goals, this utility model employs the following technical solutions:
A kind of naked battery core, including anode pole piece, cathode pole piece, isolating membrane, positive pole ear and negative lug, described isolating membrane
Between described anode pole piece and described cathode pole piece, described positive pole ear is welded on described anode pole piece, described negative pole
Tab welding is on described cathode pole piece；Described anode pole piece is provided with the first hollow-out parts.On anode pole piece, setting first is engraved
Empty portion, it is simultaneously little to the negative effect of pole piece quality.Can be folded using the naked battery core that above-mentioned anode pole piece winding is obtained, face
Long-pending little, thus its energy density improves.In addition, it is necessary to explanation, the quantity of the first hollow-out parts can be according to actual production need
It is set to one or more.This utility model can also adopt laminar, and it equally can reach what coiling form was realized
Effect.
As one kind improvement of naked battery core described in the utility model, described cathode pole piece is provided with and described first hollow out
The second corresponding hollow-out parts of portion.Cathode pole piece is correspondingly provided with the second hollow-out parts, can further reduce battery core after winding
Volume simultaneously improves the energy density of battery.
As one kind improvement of naked battery core described in the utility model, described first hollow-out parts and described second hollow-out parts
Shape be linearly, zigzag or wavy.The shape of the first hollow-out parts and the second hollow-out parts can be done according to actual needs
Corresponding conversion.
As one kind improvement of naked battery core described in the utility model, described first hollow-out parts are in the length of described anode pole piece
Spend on direction and described second hollow-out parts are all linearly on the length direction of described cathode pole piece.
As one kind improvement of naked battery core of the present invention, the length of described first hollow-out parts is more than described second hollow out
The length in portion.The length of the first hollow-out parts is more than the length of the second hollow-out parts it is ensured that positive active material on anode pole piece
Cathode pole piece there is corresponding negative electrode active material react, thus not producing analysis lithium phenomenon, causing internal short-circuit etc. to ask
Topic.
As one kind improvement of naked battery core of the present invention, the width of described first hollow-out parts is more than described second hollow out
The width in portion.The width of the first hollow-out parts is more than the width of the second hollow-out parts it is ensured that positive active material on anode pole piece
Cathode pole piece there is corresponding negative electrode active material react, thus not producing analysis lithium phenomenon, causing internal short-circuit etc. to ask
Topic.
The beneficial effects of the utility model are: this utility model provides a kind of naked battery core, including anode pole piece, negative pole pole
Piece, isolating membrane, positive pole ear and negative lug, described isolating membrane between described anode pole piece and described cathode pole piece, institute
State positive pole ear to be welded on described anode pole piece, described negative lug is welded on described cathode pole piece；Described anode pole piece
It is provided with the first hollow-out parts.With respect to prior art, anode pole piece of the present utility model is provided with hollow-out parts, using its winding
Prepared naked battery core can fold, and change, thus improving the energy of microminiature battery battery core area more microminiaturization and shape more
Metric density and efficiency of assembling
Brief description
Fig. 1 is the structural representation of anode pole piece in embodiment 1 in this utility model.
Fig. 2 is the structural representation of cathode pole piece in embodiment 1 in this utility model.
Fig. 3 is the structural representation of naked battery core in embodiment 1 in this utility model.
Fig. 4 is the structural representation of anode pole piece in embodiment 2 in this utility model.
Fig. 5 is the structural representation of cathode pole piece in embodiment 2 in this utility model.
Fig. 6 is the structural representation of naked battery core in embodiment 2 in this utility model.
Fig. 7 is the structural representation of anode pole piece in embodiment 3 in this utility model.
Fig. 8 is the structural representation of cathode pole piece in embodiment 3 in this utility model.
Wherein: 1- anode pole piece, 2- cathode pole piece, 11- positive pole ear, 21- negative lug, 12- first hollow-out parts, 22-
Second hollow-out parts.
Specific embodiment
Below in conjunction with specific embodiment and Figure of description, this utility model and its advantage are made detailed further
Describe in detail bright, but, specific embodiment of the present utility model is not limited thereto.
Embodiment 1
As shown in Fig. 1 ~ 3, a kind of naked battery core, including anode pole piece 1, cathode pole piece 2, isolating membrane 3, positive pole ear 11 and negative
Pole lug 21, between anode pole piece 1 and cathode pole piece 2, positive pole ear 11 is welded on anode pole piece 1 isolating membrane, negative pole
Lug 21 is welded on cathode pole piece 2；Anode pole piece 1 is provided with 1 the first hollow-out parts 12.Cathode pole piece 2 arranges 1 to be had and the
The second corresponding hollow-out parts 22 of one hollow-out parts 12.
The shape of the first hollow-out parts 12 and the second hollow-out parts 22 is linearly.First hollow-out parts 12 are in anode pole piece 1
On length direction and the second hollow-out parts 22 are all linearly on the length direction of cathode pole piece 2.The length of the first hollow-out parts 12
Length more than the second hollow-out parts 22.The width of the first hollow-out parts 12 is more than the width of the second hollow-out parts 22.
Embodiment 2
As shown in Fig. 4 ~ 6, as different from Example 1: in the present embodiment, anode pole piece 1 is provided with 3 hollow-out parts, negative pole
3 second hollow-out parts 22 corresponding with the first hollow-out parts 12 are provided with pole piece 2.First hollow-out parts 12 and the second hollow-out parts 22
Shape be zigzag.On the length direction of anode pole piece 1 and the second hollow-out parts 22 are in cathode pole piece 2 for first hollow-out parts 12
Length direction on equal indentations.
Other same as Example 1, repeat no more here.
Embodiment 3
As shown in Fig. 7 ~ 8, as different from Example 2: the first hollow-out parts 12 and the second hollow-out parts 22 the 3rd hollow-out parts 31
Shape be wavy.On the length direction of anode pole piece 1 and the second hollow-out parts 22 are in cathode pole piece 2 for first hollow-out parts 12
Length direction on all in wavy.
Other same as Example 2, repeat no more here.
The announcement of book and teaching according to the above description, this utility model those skilled in the art can also be to above-mentioned reality
The mode of applying carries out suitable change and modification.Therefore, this utility model is not limited to disclosed and described above being embodied as
Some modifications and changes of the present utility model be should also be as falling in scope of the claims of the present utility model by mode.
Although additionally, employing some specific terms in this specification, these terms merely for convenience of description, not to this reality
With any restriction of new composition.
Claims (6)
1. a kind of naked battery core, including anode pole piece, cathode pole piece, isolating membrane, positive pole ear and negative lug, described isolating membrane is situated between
Between described anode pole piece and described cathode pole piece, described positive pole ear is welded on described anode pole piece, described negative pole pole
Ear is welded on described cathode pole piece；It is characterized in that: described anode pole piece is provided with the first hollow-out parts.
2. naked battery core according to claim 1 it is characterised in that: described cathode pole piece is provided with and described first hollow-out parts
The second corresponding hollow-out parts.
3. naked battery core according to claim 2 it is characterised in that: the shape of described first hollow-out parts and described second hollow-out parts
Shape be linearly, zigzag or wavy.
4. naked battery core according to claim 3 it is characterised in that: described first hollow-out parts are in the length of described anode pole piece
On direction and described second hollow-out parts are all linearly on the length direction of described cathode pole piece.
5. naked battery core according to claim 4 it is characterised in that: the length of described first hollow-out parts is engraved more than described second
The length in empty portion.
6. naked battery core according to claim 4 it is characterised in that: the width of described first hollow-out parts is engraved more than described second
The width in empty portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620811147.3U CN205911379U (en) | 2016-07-29 | 2016-07-29 | Naked electric core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620811147.3U CN205911379U (en) | 2016-07-29 | 2016-07-29 | Naked electric core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205911379U true CN205911379U (en) | 2017-01-25 |
Family
ID=57802616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620811147.3U Active CN205911379U (en) | 2016-07-29 | 2016-07-29 | Naked electric core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205911379U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099207A (en) * | 2016-07-29 | 2016-11-09 | 湖南立方新能源科技有限责任公司 | A kind of naked battery core and comprise the preparation method of lithium ion battery of this naked battery core |
| CN108878765A (en) * | 2017-05-10 | 2018-11-23 | 山东鹏翔光电科技有限公司 | A kind of lithium ion cell electrode, lithium ion battery and preparation method of lithium ion battery |
| CN112467230A (en) * | 2020-12-02 | 2021-03-09 | 珠海冠宇电池股份有限公司 | Battery cell and lithium ion battery |
-
2016
- 2016-07-29 CN CN201620811147.3U patent/CN205911379U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099207A (en) * | 2016-07-29 | 2016-11-09 | 湖南立方新能源科技有限责任公司 | A kind of naked battery core and comprise the preparation method of lithium ion battery of this naked battery core |
| CN106099207B (en) * | 2016-07-29 | 2019-06-14 | 湖南立方新能源科技有限责任公司 | A kind of preparation method of naked battery core and the lithium ion battery comprising the naked battery core |
| CN108878765A (en) * | 2017-05-10 | 2018-11-23 | 山东鹏翔光电科技有限公司 | A kind of lithium ion cell electrode, lithium ion battery and preparation method of lithium ion battery |
| CN112467230A (en) * | 2020-12-02 | 2021-03-09 | 珠海冠宇电池股份有限公司 | Battery cell and lithium ion battery |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |