CN205944248U - A novel mass flow body for lithium ion battery - Google Patents
A novel mass flow body for lithium ion battery Download PDFInfo
- Publication number
- CN205944248U CN205944248U CN201620852300.7U CN201620852300U CN205944248U CN 205944248 U CN205944248 U CN 205944248U CN 201620852300 U CN201620852300 U CN 201620852300U CN 205944248 U CN205944248 U CN 205944248U
- Authority
- CN
- China
- Prior art keywords
- lithium ion
- coating
- thick liquids
- ion battery
- hole
- 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.)
- Expired - Fee Related
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Classifications
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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 novel mass flow body for lithium ion battery, it is through seting up a plurality of through -holes on the base plate, it is connected with the thick liquids infiltration in the second lithium ion thick liquids coating to make when the coating thick liquids in the first lithium ion thick liquids coating pass through the through -hole, after connecting, thick liquids infiltrations makes that to win lithium ion thick liquids coating and second lithium ion thick liquids coating thickness more even, first lithium ion thick liquids coating and second lithium ion thick liquids coating and substrate bonding's compactness has been strengthened, the messenger wins lithium ion thick liquids coating and second lithium ion thick liquids coating and is difficult for coming off, lithium ion battery's life has just so been prolonged, and through the through -hole on the base plate, lithium ion and electrolyte ion can freely pass between first lithium ion thick liquids coating and second lithium ion thick liquids coating, just so guarantee that the lithium ion and the electrolyte ionic content of mass flow body both sides is more close to make lithium ion battery charge -discharge stability, the security that has improved lithium ion battery.
Description
Technical field
The utility model belongs to cell art, more particularly, to a kind of new current collector for lithium ion battery.
Background technology
The collector of existing lithium ion battery does not have hole, and this collector not having hole makes lithium ion in discharge and recharge
During, lithium ion is unable to free shuttling, can lead to when double spread is uneven that a face active material is many, another side activity
Material is few, and then leads to battery charging and discharging unstable, thus affecting the security performance of battery；Further, since the surface of collector
Smoother, the fastness that active material is attached to collection liquid surface is tested, and can affect the service life of battery.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of for lithium ion battery
New current collector.
The utility model is achieved in that a kind of new current collector for lithium ion battery, including a substrate, described
Substrate is provided with a dispensing area, and the side of described dispensing area is coated with one first lithium ion slurry coating, described applying area
The opposite side in domain is coated with one second lithium ion slurry coating, described substrate offers some interval settings and being used for make described
The through hole that the slurry of the first lithium ion slurry coating is connected with the slurry penetration of described second lithium ion slurry coating, two adjacent institutes
The spacing stating through hole is 0.5mm-5mm.
Preferably, the material of described substrate is Copper Foil, aluminium foil or carbon fiber.
Preferably, some described through holes are located at described dispensing area.
Preferably, some described through holes are arranged at equal intervals.
Preferably, described through hole is circular hole, a diameter of 10 μm -100 μm of described circular hole.
The new current collector for lithium ion battery that the utility model provides, by some through holes are opened up on substrate,
So that the slurry on the first lithium ion slurry coating in coating is oozed with the slurry on the second lithium ion slurry coating by through hole
Thoroughly connect, slurry makes the first lithium ion slurry coating and the second lithium ion slurry coating thickness more after infiltration connects
Uniformly, enhance the compactness of the first lithium ion slurry coating and the second lithium ion slurry coating and baseplate-laminating simultaneously so that
First lithium ion slurry coating and the second lithium ion slurry coating are difficult for drop-off, thus extend the use longevity of lithium ion battery
Life；And, by the through hole on substrate, lithium ion and electrolyte ion can the first lithium ion slurry coating and the second lithium from
Pass freely through between sub- slurry coating, the comparision contents of the lithium ion and electrolyte ion that this ensures that there collector both sides connect
Closely, so that lithium ion battery stable charge/discharge, improve the security of lithium ion battery；Meanwhile, shorten lithium ion in lithium
Shuttle distance between ion battery pole piece, overcomes due on the first lithium ion slurry coating and the second lithium ion slurry coating
The problem that lithium ion content has big difference and the uneven capacity of lithium ion battery causing of substrate thickness is uneven, thus improve
The uniformity of lithium ion battery discharge and recharge.
Brief description
In order to be illustrated more clearly that the technical solution of the utility model, below by the accompanying drawing to use required in embodiment
Be briefly described it should be apparent that, drawings in the following description be only some embodiments of the present utility model, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, can also be obtained other attached according to these accompanying drawings
Figure.
Fig. 1 is a kind of schematic diagram of new current collector for lithium ion battery that the utility model embodiment provides.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the enlarged drawing at A in Fig. 1.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe.
As shown in Fig. 1 ~ Fig. 3, a kind of new current collector for lithium ion battery that the utility model embodiment provides, bag
Include a substrate 1, substrate 1 is provided with a dispensing area 2, the side of dispensing area 2 is coated with one first lithium ion slurry coating 21,
The opposite side of dispensing area 2 is coated with one second lithium ion slurry coating 22, substrate 1 offers some interval settings and is used for
Make the through hole 11 that the slurry of the first lithium ion slurry coating 21 is connected, two-phase with the slurry penetration of the second lithium ion slurry coating 22
The spacing of adjacent through hole 11 is 0.5mm-5mm, and that is, the spacing of two adjacent through-holes 11 is not more than displacement during lithium ion discharge and recharge.
Preferably, the material of described substrate 1 is Copper Foil, aluminium foil or carbon fiber.
Preferably, described some through holes 11 are located at dispensing area 2.
Preferably, described some through holes 11 are arranged at equal intervals.
Preferably, described through hole 11 is circular hole, a diameter of 10 μm -100 μm of circular hole, in other embodiments, through hole 11
It is alternatively rectangular opening, tri-angle-holed, regular polygon hole or profiled holes.
The new current collector for lithium ion battery that the utility model provides, by opening up some through holes on substrate 1
11 so that the slurry on the first lithium ion slurry coating 21 in coating passes through on through hole 11 and the second lithium ion slurry coating 22
Slurry penetration connect, slurry through infiltration connect after make the first lithium ion slurry coating 21 and the second lithium ion slurry painting
Layer 22 thickness are more uniform, enhance the first lithium ion slurry coating 21 and the second lithium ion slurry coating 22 and substrate 1 simultaneously
The compactness of laminating, so that the first lithium ion slurry coating 21 and the second lithium ion slurry coating 22 are difficult for drop-off, is thus prolonged
Grow the service life of lithium ion battery；And, by the through hole 11 on substrate 1, lithium ion and electrolyte ion can be
Pass freely through between one lithium ion slurry coating 21 and the second lithium ion slurry coating 22, this ensures that there collector both sides
The comparision contents of lithium ion and electrolyte ion are close, so that lithium ion battery stable charge/discharge, improve lithium ion battery
Security；Meanwhile, shorten shuttle distance between electrodes of lithium-ion batteries for the lithium ion, overcome and starched due to the first lithium ion
Lithium ion content in material coating 21 and the second lithium ion slurry coating 22 has big difference and substrate 1 is in uneven thickness causes
The uneven problem of capacity of lithium ion battery, thus improve the uniformity of lithium ion battery discharge and recharge.
The above is preferred embodiment of the present utility model it is noted that ordinary skill for the art
For personnel, on the premise of without departing from the utility model principle, some improvements and modifications can also be made, these improve and moisten
Decorations are also considered as protection domain of the present utility model.
Claims (5)
1. it is characterised in that including a substrate, described substrate is provided with a painting to a kind of new current collector for lithium ion battery
Cloth region, the side of described dispensing area is coated with one first lithium ion slurry coating, the opposite side coating of described dispensing area
There is one second lithium ion slurry coating, described substrate offers some interval settings and is used for making described first lithium ion slurry
The through hole that the slurry of coating is connected with the slurry penetration of described second lithium ion slurry coating, the spacing of two adjacent described through holes is
0.5mm-5mm.
2. a kind of new current collector for lithium ion battery according to claim 1 is it is characterised in that described substrate
Material is Copper Foil, aluminium foil or carbon fiber.
3. a kind of new current collector for lithium ion battery according to claim 1 is it is characterised in that some described logical
Hole position is in described dispensing area.
4. a kind of new current collector for lithium ion battery according to claim 1 is it is characterised in that some described logical
Hole is arranged at equal intervals.
5. a kind of new current collector for lithium ion battery according to claim 1 is it is characterised in that described through hole is
Circular hole, a diameter of 10 μm -100 μm of described circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620852300.7U CN205944248U (en) | 2016-08-09 | 2016-08-09 | A novel mass flow body for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620852300.7U CN205944248U (en) | 2016-08-09 | 2016-08-09 | A novel mass flow body for lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205944248U true CN205944248U (en) | 2017-02-08 |
Family
ID=57922764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620852300.7U Expired - Fee Related CN205944248U (en) | 2016-08-09 | 2016-08-09 | A novel mass flow body for lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205944248U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448054A (en) * | 2018-02-05 | 2018-08-24 | 合肥国轩高科动力能源有限公司 | A kind of high performance lithium ion battery pole piece and preparation method thereof |
| CN113555522A (en) * | 2021-07-21 | 2021-10-26 | 珠海冠宇电池股份有限公司 | Pole piece and battery |
-
2016
- 2016-08-09 CN CN201620852300.7U patent/CN205944248U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448054A (en) * | 2018-02-05 | 2018-08-24 | 合肥国轩高科动力能源有限公司 | A kind of high performance lithium ion battery pole piece and preparation method thereof |
| CN108448054B (en) * | 2018-02-05 | 2020-12-04 | 合肥国轩高科动力能源有限公司 | High-performance lithium ion battery pole piece and manufacturing method thereof |
| CN113555522A (en) * | 2021-07-21 | 2021-10-26 | 珠海冠宇电池股份有限公司 | Pole piece and battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20200809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |