CN205960126U - Cylindrical lithium battery of new face cylindrical lithium battery pole piece and gained - Google Patents
Cylindrical lithium battery of new face cylindrical lithium battery pole piece and gained Download PDFInfo
- Publication number
- CN205960126U CN205960126U CN201620439607.4U CN201620439607U CN205960126U CN 205960126 U CN205960126 U CN 205960126U CN 201620439607 U CN201620439607 U CN 201620439607U CN 205960126 U CN205960126 U CN 205960126U
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- China
- Prior art keywords
- lithium battery
- pole piece
- cylindrical lithium
- substrate
- battery pole
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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 discloses a cylindrical lithium battery of new face cylindrical lithium battery pole piece and gained. The cylindrical lithium battery pole piece includes positive plate and negative pole piece, positive plate and negative pole piece all include the substrate and set up the coating bed of material and utmost point ear field on the substrate, the coating bed of material sets up side by side on substrate width direction with utmost point ear field, and is from substrate length direction one end in succession to the region of the other end, utmost point ear field is the region of naked substrate formation of the any material of uncoated. This application is through changing the anodal and negative pole pole piece structure of lithium cell for the cylinder battery output internal resistance of adopting this pole piece structure effectively reduces, improves discharge rate, guarantees the life of lithium cell.
Description
Technical field
This utility model is related to field of lithium ion battery.
Background technology
At present, Soft Roll column lithium ion battery is generally formed using positive and negative plate plus membrane winding, then welds single
Or multiple lug.The structure of positive/negative plate 10 as shown in figure 1, being formed using part coating material layer 12 ' on base material, and in base material
Longitudinally middle position leave exposed substrate area 14 ' for soldering polar ear 11, also leave naked in a termination of the longitudinal direction of base material
Dew substrate area 13 '.This battery system, internal resistance decline is inconspicuous, and in heavy-current discharge, battery core surface temperature can raise quickly
Electrolyte is led to gasify（Heat Q=I2Rt, under identical electric current and time, the heat of the bigger generation of internal resistance is bigger）, thus leading
Cause whole battery failure.Another method is exactly to lose the capacity of some battery cores thus getting in return relatively under identical battery core size
Low internal resistance.Both approaches are all not ideal enough in actual use.For ensureing the service life of battery, reduce internal resistance value, or
It is to increase the thickness of collector.
Utility model content
The purpose of this utility model is to provide a kind of cylinder type lithium battery pole piece that can effectively reduce the internal resistance of cell and use
The cylinder type lithium battery of this battery pole piece.
In order to solve the above problems, this utility model employs the following technical solutions：A kind of novel cylinder type lithium battery pole
Piece, including positive plate and negative plate, described positive plate and negative plate all include base material and be arranged on painting dressing layer on base material and
Lug area, described painting dressing layer and lug area are set up in parallel on substrate width direction, and are from length substrate direction one end
Continuously arrive the region of the other end.
Specifically, the painting dressing layer of described positive plate is using cobalt acid lithium, LiMn2O4, LiFePO4 and nickel-cobalt-manganese ternary material
The active bed of material of material coating.
Specifically, the painting dressing layer of described negative plate is the active bed of material using coated with graphite.
Specifically, described lug area is the region of the exposed base material formation of uncoated any material.
This utility model is also claimed the cylinder type lithium battery of the lithium battery pole slice using above-mentioned novel structure.
Compared with prior art, this utility model has the beneficial effects that：The application passes through to change lithium battery anode and negative pole
Pole piece structure, can effectively reduce cylindrical electrical core output internal resistance, improve discharge-rate it is ensured that the service life of lithium battery.
Brief description
Fig. 1 is cylinder type lithium battery pole piece structure schematic diagram in prior art；
Fig. 2 is cylinder type lithium battery pole piece structure schematic diagram described in the utility model；
Fig. 3 is cylinder type lithium battery structural representation described in the utility model.
Specific embodiment
This utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 2,3, novel cylinder type lithium battery pole piece 10 described in the present embodiment adopts strip flat substrates,
On flat substrates, setting applies dressing layer 12 and lug area 14.This painting dressing layer 12 is to another in flat substrates length direction from one end
One end bed of material that continuously uninterruptedly coating active material is formed, and what the lug base material that to be uncoated active material exposed was formed,
It is also from flat substrates length direction one end to the other end continuously continual substrate regions.
General positive plate adopts aluminium foil, and negative plate adopts Copper Foil.The painting dressing layer of positive plate is using cobalt acid lithium, mangaic acid
The active bed of material of lithium, LiFePO4 and the coating of nickel-cobalt-manganese ternary material；The painting dressing layer of negative plate is to adopt coated with graphite
The active bed of material.
As shown in figure 3, when making battery, positive plate, negative plate and barrier film interval setting are wound into cylinder, positive pole
The lug area of piece and negative plate is each positioned at one end of cylindrical battery；Then, the aluminium foil of positive plate is welded together, cut
Unnecessary aluminium foil, finally welds upper lug；Negative plate processing mode is identical.
Above-described embodiment is only preferably implementation of the present utility model, and its description is more concrete and detailed, but not
Therefore the restriction to this utility model the scope of the claims can be interpreted as.It should be pointed out that the ordinary skill people for this area
For member, without departing from the concept of the premise utility, some deformation can also be made and improve, these are obvious
Alternative forms belong to protection domain of the present utility model.
Claims (4)
1. a kind of novel cylinder type lithium battery pole piece, including positive plate and negative plate, described positive plate and negative plate all include
Base material and be arranged on painting dressing layer on base material and lug area it is characterised in that：Described painting dressing layer is with lug area in base material width
Degree is set up in parallel on direction, and is from length substrate direction one end continuously to the region of the other end.
2. novel cylinder type lithium battery pole piece according to claim 1 it is characterised in that：The painting dressing of described negative plate
Layer is the active bed of material using coated with graphite.
3. novel cylinder type lithium battery pole piece according to claim 1 it is characterised in that：Described lug area is uncoated
The region that the exposed base material of any material is formed.
4. a kind of cylinder type lithium battery it is characterised in that：Using the lithium battery pole slice described in any one in claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620439607.4U CN205960126U (en) | 2016-05-16 | 2016-05-16 | Cylindrical lithium battery of new face cylindrical lithium battery pole piece and gained |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620439607.4U CN205960126U (en) | 2016-05-16 | 2016-05-16 | Cylindrical lithium battery of new face cylindrical lithium battery pole piece and gained |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205960126U true CN205960126U (en) | 2017-02-15 |
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ID=57966955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620439607.4U Active CN205960126U (en) | 2016-05-16 | 2016-05-16 | Cylindrical lithium battery of new face cylindrical lithium battery pole piece and gained |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205960126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310409A (en) * | 2019-08-14 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Electrode assembly and secondary battery |
-
2016
- 2016-05-16 CN CN201620439607.4U patent/CN205960126U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310409A (en) * | 2019-08-14 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Electrode assembly and secondary battery |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |