CN207490008U - Decorative pattern electrode slice and the cold pressing roller for manufacturing decorative pattern electrode slice - Google Patents
Decorative pattern electrode slice and the cold pressing roller for manufacturing decorative pattern electrode slice Download PDFInfo
- Publication number
- CN207490008U CN207490008U CN201721562661.9U CN201721562661U CN207490008U CN 207490008 U CN207490008 U CN 207490008U CN 201721562661 U CN201721562661 U CN 201721562661U CN 207490008 U CN207490008 U CN 207490008U
- Authority
- CN
- China
- Prior art keywords
- electrode slice
- decorative pattern
- cold pressing
- pressing roller
- pattern electrode
- 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.)
- Active
Links
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 discloses a kind of decorative pattern electrode slice, including ontology, the ontology is sheet, and the body surface is rough pattern layer, pattern layer includes the shaggy block of multiple periodic arrangements, by scraggly pattern layer being set to improve the surface area of electrode slice and wellability on electrode slice surface, and then improve electrochemical reaction active area in battery, so as to the battery core power density for reducing battery core DCR, being promoted, the process processed on the whole does not have significant change, easy to implement, the cost that must make high power battery core is relatively lower.
Description
Technical field
The utility model is related to arrive the technical field of electrode slice, decorative pattern electrode slice is especially related to and for manufacturing decorative pattern
The cold pressing roller of electrode slice.
Background technology
Lithium ion battery is a kind of secondary cell (rechargeable battery), it relies primarily on lithium ion and moves between a positive electrode and a negative electrode
It moves and carrys out work, it is the representative of modern high performance battery, as extensive use as electrode generally to use the material for containing elemental lithium
In the product of multiple fields, it is the direction that research is endeavoured in this field always to improve its utilization ratio.
For the research and development of high power lithium ion cell, traditional design is still relied upon in positive and negative anodes main material, chemical system etc.；But just
The space of cathode main material optimization is relatively limited, and common mode is the specific surface area by improving main material, such as existing exploitation is small
Granularity positive and negative anodes main material；However, small grain size main material can lead to the reduction of battery core integral energy density；In addition, main material particle size reduction is led
Its processing cost is caused to increase, whole battery core cost is caused to increase, it is difficult to meet growing actual demand.
Utility model content
The main purpose of the utility model be provide a kind of cost it is relatively lower, promoted battery core power density decorative pattern electrode
Piece and the cold pressing roller for manufacturing decorative pattern electrode slice, it is intended to solve existing electrode slice and cause battery core integral energy density relatively
The technical issues of low.
The utility model proposes a kind of decorative pattern electrode slices, and including ontology, the ontology is sheet, and the body surface is
Rough pattern layer；The pattern layer includes the shaggy block of multiple periodic arrangements.
Further, the pattern layer is formed, Huo Zhesuo by multiple first protrusions of the body surface outwardly convex
Pattern layer is stated to be formed by multiple first grooves that the surface of the ontology is recessed inwardly.
Further, first protrusion or the first groove assume diamond in shape.
Further, the altitude range of first protrusion is 12-15um, and the depth bounds of first groove are 12-
15um。
Further, the outer surface of the cold pressing roller is equipped with rough machined layer, and the machined layer of the cold pressing roller is fitted
Pattern layer with the decorative pattern electrode slice.
Further, the machined layer by it is described cold pressing roller surface outwardly convex multiple second protrusions and formed or
The machined layer is formed by multiple second grooves that the surface of the cold pressing roller is recessed inwardly.
Further, the altitude range of second protrusion is that the depth bounds of second grooves of 12-15um or described are
12-15um。
Further, the machined layer is made of ferrochrome.
Decorative pattern electrode slice provided by the utility model, by scraggly decorative pattern being set to improve on electrode slice surface
The surface area and wellability of electrode slice, and then electrochemical reaction active area in battery is improved, reduce battery core DCR, the electricity promoted
Core power density, the process processed on the whole does not have significant change, easy to implement, and cost is relatively lower.
Description of the drawings
Fig. 1 is the structure diagram of decorative pattern electrode slice in one embodiment of the utility model；
Fig. 2 is the structure diagram of cold pressing roller in one embodiment of the utility model.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe.Obviously, described embodiment is only the part of the embodiment rather than whole of the utility model
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining relative position relation, motion conditions under a certain particular pose (as shown in drawings) between each component etc., such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description in " first ", " second " etc. involved in the utility model is only used for description purpose, without being understood that
To indicate or implying its relative importance or the implicit quantity for indicating indicated technical characteristic.Define as a result, " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the technical side between each embodiment
Case can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution
Conflicting or can not realize when occur will be understood that the combination of this technical solution is not present, also not in the requires of the utility model
Protection domain within.
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
With reference to the decorative pattern electrode slice that Fig. 1-2, this practicality are provided, the ontology 1 including electrode slice, which can be anode
Piece or negative plate, ontology 1 are flake, and the surface of ontology 1 is rough pattern layer, which includes multiple periodicity
The shaggy block 2 of arrangement, such as multiple shaggy blocks 2 in cubic array shape arrangement, these shaggy blocks 2 so that ontology 1 in it is concave-convex not
Flat sheet.
By scraggly pattern layer being set to improve the surface area of electrode slice and wellability on electrode slice surface, into
And electrochemical reaction active area in battery is improved, reduce battery core DCR, the battery core power density promoted so that make high power
The cost of battery core is relatively lower.
For example, using the battery of decorative pattern electrode slice provided by the utility model, either charge or discharge, capacity retention ratio
All 100%, and use the battery core of untreated electrode slice, capacity retention ratio during electric discharge is 92.2%, capacity during electric discharge
Conservation rate is 96.5%, and above-mentioned capacity retention ratio can represent the electricity producing level of battery.
As it can be seen that the battery core overall power performance for employing decorative pattern electrode slice provided by the utility model is all promoted.
On the other hand, recycling with the multiple charge and discharge of battery, capacity retention ratio can gradually successively decrease, but employ
The battery of above-mentioned decorative pattern electrode slice can be smaller than the decline rate of the battery using untreated electrode slice namely employs this practicality
The decorative pattern electrode slice of novel offer improves the battery core service life under high rate cyclic.
In the present embodiment, shaggy block 2 for the surface outwardly convex of laminar body 1 the first protrusion or be recessed inwardly the
One groove, multiple first protrusions or multiple first grooves are deposited to form above-mentioned pattern layer in multiple periodic arrangements, not only structure letter
It is single easy to process, and the surface area of electrode slice can be improved.
Preferably, in order to enable the surface area of electrode slice more improves, the first protrusion or the first groove assume diamond in shape.
Further, the altitude range of the first protrusion is 12-15um, wherein most preferably 13um；The depth model of first groove
It encloses for 12-15um, wherein most preferably 13um.
Corresponding, the utility model additionally provides a kind of cold pressing roller 3 for being used to manufacture above-mentioned decorative pattern electrode slice, the cold pressing roller
3 outer surfaces are equipped with rough machined layer 4.Specifically, the cold pressing roller 3 includes upper roller and lower roll, upper roller and lower roll it is outer
Surface is respectively equipped with one layer of machined layer 4, and machined layer 4 is in roughness, and the machined layer 4 of the roughness is adapted to above-mentioned flower
Pattern layer on line electrode slice, specifically, the shape by multiple second protrusions of upper roller or the surface outwardly convex of lower roll of machined layer 4
Into or machined layer 4 formed by multiple second grooves that the surface of upper roller or lower roll is recessed inwardly.
Further, the altitude range of the second protrusion is 12-15um, wherein most preferably 13um；The depth model of second groove
It encloses for 12-15um, wherein most preferably 13um.
In the present embodiment, above-mentioned machined layer 4 is made of ferrochrome, and production is easily at low cost and machined electrode piece is convenient.
Above-mentioned decorative pattern electrode slice can directly be processed by above-mentioned cold pressing roller 3 and be obtained, specifically can using step as：
During cold pressing, the electrode slice after film is placed between upper roller and lower roll, control upper roller and lower roll to electrode slice into
Row cold pressing by upper roller and the rough machined layer 4 of lower roll, is formed it into certain compacted density and with bumps
The electrode slice of uneven pattern layer.
The process processed on the whole in this way does not have significant change, but can be fabricated to the battery core work(for reducing battery core DCR, being promoted
The decorative pattern electrode slice of rate density, it is simple and fast easy to implement.
In another embodiment, above-mentioned decorative pattern electrode slice can be made by the following manner：In cold pressing roller 3 and electrode slice
Between, intubating length 1.5m, width 0.5m, thickness 5mm copper coin；Copper coin wherein end face is embossing face, which has multiple diamond shapes
Protrusion or groove.In cold pressure procedure, electrode slice is placed between the embossing face of two copper coins, the spacing cold pressing of control up-down rollers makes
It reaches the compacted density of electrode slice design, at this moment can be produced by the embossing face of copper coin on electrode slice surface uneven
Pattern lines.
In conclusion decorative pattern electrode slice provided by the utility model, scraggly by being set on electrode slice surface
Pattern layer improve the surface area of electrode slice and wellability, and then improve electrochemical reaction active area in battery, reduce electricity
Core DCR, the battery core power density promoted, increase battery core service life, still further provide a kind of electric for manufacturing above-mentioned decorative pattern
The cold pressing roller 3 of pole piece, the process processed on the whole does not have significant change, easy to implement so that makes the cost of high power battery core
It is relatively lower.
The above is only the preferred embodiment of the present invention, and it does not limit the scope of the patent of the present invention,
Every equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is directly or indirectly transported
Used in other related technical areas, it is equally included in the patent within the scope of the utility model.
Claims (8)
1. a kind of decorative pattern electrode slice, which is characterized in that including ontology, the ontology is sheet, and the body surface is bumps
Uneven pattern layer；The pattern layer includes the shaggy block of multiple periodic arrangements.
2. decorative pattern electrode slice as described in claim 1, which is characterized in that the pattern layer is by the body surface outwardly convex
Multiple first protrusions and formed or the pattern layer is by multiple first grooves that the surface of the ontology is recessed inwardly and shape
Into.
3. decorative pattern electrode slice as claimed in claim 2, which is characterized in that first protrusion or the first groove assume diamond in shape.
4. decorative pattern electrode slice as claimed in claim 3, which is characterized in that the altitude range of first protrusion is 12-15um,
The depth bounds of first groove are 12-15um.
A kind of 5. cold pressing roller for the manufacture such as decorative pattern electrode slice of any one of claim 1-4, which is characterized in that the cold pressing
The outer surface of roller is equipped with rough machined layer, and the machined layer of the cold pressing roller is adapted to the pattern layer of the decorative pattern electrode slice.
6. cold pressing roller as claimed in claim 5, which is characterized in that the machined layer is by the cold pressing roller surface outwardly convex
Multiple second protrusions and formed or the machined layer is by multiple second grooves that the surface of the cold pressing roller is recessed inwardly and shape
Into.
7. cold pressing roller as claimed in claim 6, which is characterized in that the altitude range of second protrusion is 12-15um or institute
The depth bounds for stating the second groove are 12-15um.
8. cold pressing roller as claimed in claim 5, which is characterized in that the machined layer is made of ferrochrome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721562661.9U CN207490008U (en) | 2017-11-20 | 2017-11-20 | Decorative pattern electrode slice and the cold pressing roller for manufacturing decorative pattern electrode slice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721562661.9U CN207490008U (en) | 2017-11-20 | 2017-11-20 | Decorative pattern electrode slice and the cold pressing roller for manufacturing decorative pattern electrode slice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207490008U true CN207490008U (en) | 2018-06-12 |
Family
ID=62474749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721562661.9U Active CN207490008U (en) | 2017-11-20 | 2017-11-20 | Decorative pattern electrode slice and the cold pressing roller for manufacturing decorative pattern electrode slice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207490008U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864178A (en) * | 2020-07-19 | 2020-10-30 | 江西安驰新能源科技有限公司 | Rolling method and rolling device for thick pole piece of lithium battery and lithium battery |
| CN112892988A (en) * | 2021-01-19 | 2021-06-04 | 兰州大学 | Coating device for electrode plate of lithium ion battery |
| CN113451540A (en) * | 2021-08-12 | 2021-09-28 | 上海兰钧新能源科技有限公司 | Pole piece rolling method |
-
2017
- 2017-11-20 CN CN201721562661.9U patent/CN207490008U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111864178A (en) * | 2020-07-19 | 2020-10-30 | 江西安驰新能源科技有限公司 | Rolling method and rolling device for thick pole piece of lithium battery and lithium battery |
| CN112892988A (en) * | 2021-01-19 | 2021-06-04 | 兰州大学 | Coating device for electrode plate of lithium ion battery |
| CN113451540A (en) * | 2021-08-12 | 2021-09-28 | 上海兰钧新能源科技有限公司 | Pole piece rolling method |
| CN113451540B (en) * | 2021-08-12 | 2023-03-24 | 上海兰钧新能源科技有限公司 | Pole piece rolling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207490008U (en) | Decorative pattern electrode slice and the cold pressing roller for manufacturing decorative pattern electrode slice | |
| CN202495523U (en) | Lithium ion battery and electrode plate thereof | |
| CN110224182B (en) | Method for pre-lithiation of lithium ion battery | |
| CN109888266A (en) | A kind of silicon-based anode piece and preparation method thereof and lithium ion battery | |
| CN102867983A (en) | Nonaqueous secondary lithium battery | |
| CN113839084A (en) | Battery core and battery | |
| CN109326768A (en) | A kind of sodium-ion battery cathode and preparation method and sodium-ion battery | |
| CN107681214A (en) | A kind of lithium-ion electric core mends lithium method | |
| CN106848272A (en) | A kind of porous tinfoil paper negative pole and preparation method thereof and sodium ion secondary battery | |
| CN202434638U (en) | Punching grid of lead-acid storage battery and roll-in shaft | |
| CN116130642B (en) | Hierarchical porous silicon-carbon negative electrode material, silicon-containing negative electrode sheet and lithium ion battery | |
| CN108598359B (en) | Method for increasing coating amount of active substances of square polymer lithium ion battery cell electrode plate | |
| CN208655791U (en) | Battery pole piece roll | |
| CN111268720A (en) | Preparation method of large interlayer spacing tin disulfide nanoflower sodium ion battery negative electrode material | |
| CN103441283A (en) | Lithium ion battery negative electrode current collector structure and battery containing the same | |
| CN102064320A (en) | Secondary battery, pole piece and manufacturing method thereof | |
| CN207368085U (en) | Porous lithium metal foil | |
| CN103199240B (en) | Preparation method of gamma-Fe2O3 sodium ion battery anode material | |
| CN105140486A (en) | High-capacity lithium ion battery anode material and preparing method thereof | |
| KR20240017017A (en) | Electrode plate, electrochemical device, and bottom coating device | |
| CN110165156B (en) | FeP/FeC double-layer heterogeneous interface electrode material in carbon confinement space and preparation method and application thereof | |
| JP7168473B2 (en) | Negative electrode for all-solid-state battery | |
| CN113725509A (en) | Formation method of lithium ion battery | |
| CN106910876A (en) | A kind of two-dimensional nano porous zinc bloom for cathode of lithium battery and preparation method thereof | |
| CN203103339U (en) | Film-coated boat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181113 Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. Address before: 518000, 1st floor, 2nd floor, A-B area, 2nd floor, D area-9th floor, Yihe Road, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRONICS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190301 Address after: 518000, 1st floor, 2nd floor, A-B area, 2nd floor, D area-9th floor, Yihe Road, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee after: SUNWODA ELECTRONICS Co.,Ltd. Address before: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230625 Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. Address before: 518000, 1st floor, 2nd floor, A-B area, 2nd floor, D area-9th floor, Yihe Road, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRONICS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |