CN208298933U - The pole piece conductor foil of lithium ion battery - Google Patents
The pole piece conductor foil of lithium ion battery Download PDFInfo
- Publication number
- CN208298933U CN208298933U CN201820755473.6U CN201820755473U CN208298933U CN 208298933 U CN208298933 U CN 208298933U CN 201820755473 U CN201820755473 U CN 201820755473U CN 208298933 U CN208298933 U CN 208298933U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- conductor foil
- lithium ion
- ion battery
- active material
- 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
Links
- 239000011888 foil Substances 0.000 title claims abstract description 31
- 239000004020 conductor Substances 0.000 title claims abstract description 30
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 19
- 239000011149 active material Substances 0.000 claims abstract description 24
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 238000005530 etching Methods 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 11
- 239000006258 conductive agent Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000003491 array Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model proposes a kind of pole piece conductor foils of lithium ion battery, it is divided into the pole piece of multiple array settings on the conductor foil by the cut-off rule of dotted line formula, the pole piece is arranged in multiple lines and multiple rows, it goes to extended on each pole piece edge, the conductor foil corresponds to and is respectively formed a porose area in the middle part of the pole pieces of each column, each porose area is square rectangle, multiple micropores are evenly distributed with by etching thereon, the aperture of each micropore is 0.4 ㎜ -10 ㎜, and the conductor foil is viscous equipped with active material layer in the coating of the surface of each porose area.The pole piece conductor foil of the lithium ion battery is due to which is provided with micropore area, and when not increasing its surface area, can increase the active material on its surface is coated with area, to improve its performance.
Description
Technical field
The utility model relates to a kind of battery technology fields, particularly relate to a kind of pole piece conductor foil of lithium ion battery.
Background technique
Lithium ion battery is high with its voltage, energy density is big, have extended cycle life, memory-less effect, have a safety feature etc. it is excellent
Point becomes ideal chargeable battery.The quality of performance of lithium ion battery depends greatly on battery plus-negative plate pole piece
Technology, especially cathode pole piece.With the miniaturization of battery technology, it is necessary to improve the face of the active matter for the pole piece being coated with
Product is to improve its performance.
Utility model content
The utility model proposes a kind of pole piece conductor foil of lithium ion battery, solve active on pole piece in the prior art
The low problem of object plane product.
The technical solution of the utility model is achieved in that
A kind of pole piece conductor foil of lithium ion battery is divided into multiple arrays by the cut-off rule of dotted line formula on the conductor foil and sets
The pole piece set, the pole piece are arranged in multiple lines and multiple rows, and for each pole piece along row to being extended, which corresponds to the pole piece of each column
Middle part be respectively formed a porose area, each porose area is square rectangle, is evenly distributed with multiple micropores, each micropore by etching thereon
Aperture be 0.4 ㎜ -10 ㎜, which is equipped with active material layer in the coating of the surface of each porose area is viscous.
Preferred embodiment is that the active material layer is carbon-coating.
Preferred embodiment is that the active material layer is made of multiple active material particles.
Preferred embodiment is that the conductive agent that the part of the surface of each active material particle is formed with electronic conductivity is constituted prominent
It rises.
Preferred embodiment is that the height of each protrusion is the 8-28% of the partial size of the active material particle where it.
Preferred embodiment is that the thickness of the conductor foil is between 9 μm -40 μm.
The utility model has the following beneficial effects:
The pole piece conductor foil of lithium ion battery in the utility model is not increasing its table due to which is provided with porose area
In the case of area, can increase the active material on its surface is coated with area, to improve its performance, be applicable to miniaturization and it is slim
The demand of electrode development.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the pole piece conductor foil of the utility model lithium ion battery；
Fig. 2 is the enlarged drawing for the active material particle part being arranged on Fig. 1 araea porosae mesonoticae.
In figure:
100, conductor foil；10, cut-off rule；20, pole piece；21, porose area；22, micropore；23, active material particle；24, conductive
Agent；25, protrusion.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the pole piece conductor foil 100 of the lithium ion battery is copper foil, thereon by the cut-off rule 10 of dotted line formula
It is divided into the pole piece 20 of multiple arrays settings, the pole piece 20 is arranged in multiple lines and multiple rows, and each pole piece 20 is along capable to extended.
The middle part of the pole piece 20 of the corresponding each column of the conductor foil 100 is respectively formed a porose area 21.Each porose area 21 is square rectangle,
It is evenly distributed with multiple micropores 22 thereon, the aperture of each micropore 22 is 0.4 ㎜ -10 ㎜.The micropore 22 of each porose area passes through etching
Mode is set on conductor foil 100, and the transverse direction and longitudinal direction along pole piece 20 is arranged.The conductor foil 100 is in each porose area 21
Surface coating is viscous to be equipped with active material layer, concretely carbon-coating.The active material layer is made of multiple active material particles 23.
Please refer to Fig. 2, the part of the surface of each active material particle 23 is equipped with the conductive agent 24 of electronic conductivity, conductive
Protrusion 25 is formed in agent can make its rapidly charge and discharge in the case where using as electro-chemical device electrode.Each protrusion 25
The 8-28% of the partial size of active material particle 23 of the height where it, each 25 covering surface of protrusion are the active material where it
The 15-80% of the surface area of grain 23.
The thickness of the conductor foil 100 can preferentially can be 20 μm between 9 μm -40 μm.
The pole piece conductor foil 100 of the lithium ion battery is not increasing its surface area feelings due to which is provided with porose area 21
Under condition, can increase the active material layer on its surface is coated with area, to improve its performance, is applicable to miniaturization and thin electrode
The demand of development.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. a kind of pole piece conductor foil of lithium ion battery, it is characterised in that: be divided on the conductor foil by the cut-off rule of dotted line formula
The pole piece of multiple array settings, the pole piece are arranged in multiple lines and multiple rows, and for each pole piece along row to being extended, the conductor foil is corresponding
A porose area is respectively formed in the middle part of the pole piece respectively arranged, each porose area is square rectangle, is evenly distributed with thereon by etching multiple micro-
Hole, the aperture of each micropore are 0.4 ㎜ -10 ㎜, and the conductor foil is viscous equipped with active material layer in the coating of the surface of each porose area.
2. the pole piece conductor foil of lithium ion battery as described in claim 1, it is characterised in that: the active material layer is carbon
Layer.
3. the pole piece conductor foil of lithium ion battery as described in claim 1, it is characterised in that: the active material layer is by more
A active material particle composition.
4. the pole piece conductor foil of lithium ion battery as claimed in claim 3, it is characterised in that: the portion of each active material particle
Point surface is formed with the protrusion that the conductive agent of electronic conductivity is constituted.
5. the pole piece conductor foil of lithium ion battery as claimed in claim 4, it is characterised in that: the height of each protrusion is its institute
Active material particle partial size 8-28%.
6. the pole piece conductor foil of lithium ion battery according to any one of claims 1 to 5, it is characterised in that: described to lead
The thickness of body foil is between 9 μm -40 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755473.6U CN208298933U (en) | 2018-05-21 | 2018-05-21 | The pole piece conductor foil of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820755473.6U CN208298933U (en) | 2018-05-21 | 2018-05-21 | The pole piece conductor foil of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208298933U true CN208298933U (en) | 2018-12-28 |
Family
ID=64727379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820755473.6U Expired - Fee Related CN208298933U (en) | 2018-05-21 | 2018-05-21 | The pole piece conductor foil of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208298933U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115132964A (en) * | 2022-08-30 | 2022-09-30 | 楚能新能源股份有限公司 | Lithium battery pole piece substrate and pole piece manufacturing method |
-
2018
- 2018-05-21 CN CN201820755473.6U patent/CN208298933U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115132964A (en) * | 2022-08-30 | 2022-09-30 | 楚能新能源股份有限公司 | Lithium battery pole piece substrate and pole piece manufacturing method |
| CN115132964B (en) * | 2022-08-30 | 2022-11-25 | 楚能新能源股份有限公司 | Lithium battery pole piece substrate and pole piece manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 |