CN205039204U - Lithium ion battery pole piece and lithium ion battery - Google Patents
Lithium ion battery pole piece and lithium ion battery Download PDFInfo
- Publication number
- CN205039204U CN205039204U CN201520859077.4U CN201520859077U CN205039204U CN 205039204 U CN205039204 U CN 205039204U CN 201520859077 U CN201520859077 U CN 201520859077U CN 205039204 U CN205039204 U CN 205039204U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- press strip
- piece
- anodal
- lithium
- 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
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 lithium ion battery pole piece and lithium ion battery, lithium ion battery pole piece include anodal pole piece and negative pole pole piece, and anodal pole piece includes that the middle part of anodal mass flow piece, anodal mass flow piece is equipped with the cathode material coating, and the both ends of anodal mass flow piece are the first ploe ear, are equipped with the first layering that the activity set up on the first ploe ear. The negative pole pole piece includes that the middle part of negative pole mass flow piece, negative pole mass flow piece is equipped with the anode material coating, and the both ends of negative pole mass flow piece are the second ploe ear, is equipped with the second layering that the activity set up on the second ploe ear. Owing to be equipped with first layering on the first ploe ear for the first ploe ear extends with the same also production the in the region of anodal mass flow piece coating cathode material coating, makes each position extension degree of whole anodal pole piece close, warp in order to reach the anodal pole piece of reduction. The reducible negative pole pole piece of in like manner second layering warp. Because it is little that deformation of anodal pole piece and negative pole pole piece comparatively warp, reduced the degree of difficulty of the follow -up coiling technology of electrode pole piece, improved the rate of certified products and technology efficiency.
Description
Technical field
The utility model relates to battery manufacturing field, especially, relates to a kind of electrodes of lithium-ion batteries.In addition, the utility model also relates to a kind of lithium ion battery comprising above-mentioned electrodes of lithium-ion batteries.
Background technology
Compared with the battery of the other types such as plumbic acid, NI-G, ni-mh, lithium ion battery has that specific capacity is large, operating voltage is high, has extended cycle life, volume is little, the advantage such as lightweight, not only be used widely on a portable electronic device, and be widely used in electric automobile, electric bicycle and electric tool etc. in medium-sized electrical equipment, the Main way of the current Shi Ge great battery of lithium-ion-power cell especially wherein producer development.But in order to the bulk density ratio ensureing lithium ion battery, need in battery pole piece manufacture process through this one technique of roll extrusion.But the extension at flow collection sheet pressurized position can be caused to the roll extrusion of battery pole piece, and the position of uncoated electrode material is without extension, thus causes battery pole piece to be out of shape large out-of-flatness, make follow-up winding process difficulty higher.
Utility model content
The utility model provides a kind of electrodes of lithium-ion batteries and lithium ion battery, to solve irregular technical problem after existing electrodes of lithium-ion batteries roll extrusion.
The technical solution adopted in the utility model is as follows:
A kind of electrodes of lithium-ion batteries, electrodes of lithium-ion batteries comprises anode pole piece and cathode pole piece, anode pole piece comprises anode collection sheet, the middle part of anode collection sheet is provided with positive electrode coating, and the both ends of anode collection sheet are the first lug, and the first lug is provided with movable the first press strip arranged.
Cathode pole piece comprises negative pole currect collecting sheet, the middle part of negative pole currect collecting sheet is provided with negative material coating, and the both ends of negative pole currect collecting sheet are the second lug, and the second lug is provided with movable the second press strip arranged.
Further, the thickness of the first press strip is 50 ~ 200 microns, and the thickness of the second press strip is 50 ~ 200 microns, and the thickness of the first press strip is 50 ~ 250 microns, and the thickness of the second press strip is 50 ~ 250 microns.
Further, the first press strip is adhered on the first lug; Second press strip is adhered on the second lug.
Further, the material of the first press strip, the second press strip is hard material.
Further, the first press strip and the second press strip all have side be bent to form downwards for against baffle plate.
According to another aspect of the present utility model, additionally provide a kind of lithium ion battery, lithium ion battery comprises above-mentioned electrodes of lithium-ion batteries.
The utility model has following beneficial effect: because the first lug is provided with the first press strip, the first lug is made also to produce extension with the region of anode collection sheet painting coated positive pole material coating, make whole anode pole piece each position degree of stretch close, reduce anode pole piece distortion to reach.In like manner the second press strip can reduce cathode pole piece distortion.Due to anode pole piece distortion and cathode pole piece comparatively smooth, be out of shape little, reduce the difficulty of the follow-up winding process of electrode plates, improve the percentage of A-class goods and process efficiency.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the anode pole piece Facad structure schematic diagram of the utility model preferred embodiment;
Fig. 2 is the anode pole piece side structure schematic diagram of Fig. 1;
Fig. 3 is the cathode pole piece Facad structure schematic diagram of the utility model preferred embodiment;
Fig. 4 is the cathode pole piece side structure schematic diagram of Fig. 3;
Fig. 5 is the anode pole piece Facad structure schematic diagram of another preferred embodiment of the utility model.
Description of reference numerals: 100, anode pole piece; 200, cathode pole piece; 110, anode collection sheet; 120, positive electrode coating; 130, the first lug; 140, the first press strip; 210, negative pole currect collecting sheet; 220, negative material coating; 230, the second lug; 240, the second press strip; 250, baffle plate.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
With reference to Fig. 1 ~ Fig. 4, a kind of electrodes of lithium-ion batteries, electrodes of lithium-ion batteries comprises anode pole piece 100 and cathode pole piece 200, anode pole piece 100 comprises anode collection sheet 110, the middle part of anode collection sheet 110 is provided with positive electrode coating 120, the both ends of anode collection sheet 110 are that the first lug 130, first lug 130 is provided with movable the first press strip 140 arranged.Cathode pole piece 200 comprises negative pole currect collecting sheet 210, the middle part of negative pole currect collecting sheet 210 is provided with negative material coating 220, and the both ends of negative pole currect collecting sheet 210 are that the second lug 230, second lug 230 is provided with movable the second press strip 240 arranged.
Positive electrode coating 120 is identical with the coating on existing both positive and negative polarity with negative material coating 220.Positive electrode coating 120 and negative material coating 220 can adopt extrusion coating machine to be coated on the zone line of anode collection sheet 110 and negative pole currect collecting sheet 210 continuously.The part of uncoated electrode material is lug, concrete, and the lug of anode pole piece 100 is the first lug 130, and the lug of cathode pole piece 200 is the second lug 230.First press strip 140 is movably arranged on the first lug 130, under the roll extrusion of running roller, oppress the first lug 130 to make it to extend, the height of the region making the first lug 130 be coated with coated positive pole material coating 120 with anode collection sheet 110 after compressing is close, make whole anode pole piece 100 comparatively smooth, be out of shape less.After roll extrusion completes, the first press strip 140 can be taken off.In like manner the second conductive layer makes whole cathode pole piece 200 comparatively smooth, is out of shape less.
The utility model has following beneficial effect: because the first lug 130 is provided with the first press strip 140, make the first lug 130 be coated with anode collection sheet 110 region of coated positive pole material coating 120 also produce extension, make whole anode pole piece 100 each position degree of stretch close, be out of shape to reach minimizing anode pole piece 100.In like manner the second press strip 240 can reduce cathode pole piece 200 and is out of shape.To be out of shape due to anode pole piece 100 and cathode pole piece 200 is comparatively smooth, be out of shape little, to reduce the difficulty of the follow-up winding process of electrode plates, improve the percentage of A-class goods and process efficiency.
Alternatively, the thickness of the first press strip 140 is 50 ~ 200 microns, and the thickness of the second press strip 240 is 50 ~ 200 microns, and the thickness of the first press strip 140 is 50 ~ 250 microns, and the thickness of the second press strip 240 is 50 ~ 250 microns.This design can make the electrodes of lithium-ion batteries surfacing obtained, and is out of shape little.
Alternatively, the first press strip 140 is adhered on the first lug 130.Second press strip 240 is adhered on the second lug 230.Adopt bonding mode to connect, the first press strip 140 and the second press strip 240 can be avoided to drop before roll extrusion, and after roll extrusion, the first press strip 140 and the second press strip 240 easily take off.
Alternatively, the material of the first press strip 140, second press strip 240 is hard material.As bonding jumper, hardwood bar or hard plastic material strip, to oppress extension by the first lug 130 and the second lug 230.
Alternatively, with reference to Fig. 5, the first press strip 140 and the second press strip 240 all have side be bent to form downwards for against baffle plate 250.For anode pole piece 100, the first press strip 140 and baffle plate 250 are in L-type, and against living, anode pole piece 100, first press strip 140 is more firm on anode pole piece 100, are not easy mobile in rolling process.
A kind of lithium ion battery, lithium ion battery comprises above-mentioned electrodes of lithium-ion batteries.Owing to have employed above-mentioned electrodes of lithium-ion batteries, anode pole piece 100 and cathode pole piece 200 are out of shape little, and the anode pole piece 100 of winding is consistent with the pressure of barrier film with each position of cathode pole piece 200, and the life-span of lithium ion battery is improved.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (6)
1. an electrodes of lithium-ion batteries, it is characterized in that, described electrodes of lithium-ion batteries comprises anode pole piece (100) and cathode pole piece (200), described anode pole piece (100) comprises anode collection sheet (110), the middle part of described anode collection sheet (110) is provided with positive electrode coating (120), the both ends of described anode collection sheet (110) are the first lug (130), and described first lug (130) is provided with movable the first press strip (140) arranged;
Described cathode pole piece (200) comprises negative pole currect collecting sheet (210), the middle part of described negative pole currect collecting sheet (210) is provided with negative material coating (220), the both ends of described negative pole currect collecting sheet (210) are the second lug (230), and described second lug (230) is provided with movable the second press strip (240) arranged.
2. electrodes of lithium-ion batteries according to claim 1, it is characterized in that, the thickness of described first press strip (140) is 50 ~ 200 microns, the thickness of described second press strip (240) is 50 ~ 200 microns, the thickness of described first press strip (140) is 50 ~ 250 microns, and the thickness of described second press strip (240) is 50 ~ 250 microns.
3. electrodes of lithium-ion batteries according to claim 1, is characterized in that, described first press strip (140) is adhered on described first lug (130); Described second press strip (240) is adhered on the second lug (230).
4. electrodes of lithium-ion batteries according to claim 1, is characterized in that, the material of described first press strip (140), described second press strip (240) is hard material.
5. electrodes of lithium-ion batteries according to claim 1, is characterized in that, described first press strip (140) and described second press strip (240) all have side be bent to form downwards for against baffle plate (250).
6. a lithium ion battery, is characterized in that, described lithium ion battery comprises the electrodes of lithium-ion batteries according to any one of Claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859077.4U CN205039204U (en) | 2015-10-29 | 2015-10-29 | Lithium ion battery pole piece and lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859077.4U CN205039204U (en) | 2015-10-29 | 2015-10-29 | Lithium ion battery pole piece and lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205039204U true CN205039204U (en) | 2016-02-17 |
Family
ID=55298078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520859077.4U Expired - Fee Related CN205039204U (en) | 2015-10-29 | 2015-10-29 | Lithium ion battery pole piece and lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205039204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192925A (en) * | 2018-08-17 | 2019-01-11 | 珠海格力电器股份有限公司 | Battery pole piece and lithium ion battery |
-
2015
- 2015-10-29 CN CN201520859077.4U patent/CN205039204U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192925A (en) * | 2018-08-17 | 2019-01-11 | 珠海格力电器股份有限公司 | Battery pole piece and lithium ion battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103606644B (en) | The negative plate of lithium ion battery, barrier film and both manufacture methods | |
| CN202495523U (en) | Lithium ion battery and electrode plate thereof | |
| CN102683752B (en) | Stacked lithium ion power battery and manufacturing method thereof | |
| CN202259533U (en) | Pole piece of lithium ion battery and lithium ion battery | |
| CN103094521A (en) | Positive plate of lithium ion power battery as well as manufacturing method and laser etching device of positive plate | |
| CN203800123U (en) | Electrode assembly and lithium secondary battery | |
| CN103840216A (en) | Manufacturing method for lithium ion buckle type battery | |
| CN205039204U (en) | Lithium ion battery pole piece and lithium ion battery | |
| CN203774413U (en) | Polymer lithium ion battery cell structure | |
| CN202695606U (en) | Z-shaped laminated cell of lithium ion battery for high-capacity automobile | |
| CN106941150A (en) | Lithium ion battery plus-negative plate plate and preparation method, core and lithium ion battery | |
| CN103887472A (en) | Electrode assembly, manufacture method thereof and lithium secondary battery | |
| CN204464391U (en) | Battery core | |
| CN203774408U (en) | Power energy-storage polymer lithium ion battery | |
| CN204375844U (en) | The battery of high-energy-density | |
| CN207368125U (en) | Lithium ion battery based on compound lithium an- ode | |
| CN207504101U (en) | A kind of graphene rectangular lithium ion battery | |
| CN202339947U (en) | Ultrathin lithium ion battery | |
| CN202308197U (en) | Polymer lithium ion battery with internal multi-winding-core parallel structure | |
| CN202308135U (en) | Negative pole piece and lug structure for power battery | |
| CN201717333U (en) | Polymer lithium ion battery (PLIB) | |
| CN202758982U (en) | Flexible package coiling type square lithium ion battery | |
| CN201773893U (en) | Composite plate for storage batteries | |
| CN201975478U (en) | Novel valve-control sealed lead-acid storage battery | |
| CN201340882Y (en) | High-power laminated lithium ion battery |
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: 20160217 Termination date: 20191029 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |