CN208970633U - A kind of lithium battery structure with combination electrode - Google Patents
A kind of lithium battery structure with combination electrode Download PDFInfo
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- CN208970633U CN208970633U CN201821815026.1U CN201821815026U CN208970633U CN 208970633 U CN208970633 U CN 208970633U CN 201821815026 U CN201821815026 U CN 201821815026U CN 208970633 U CN208970633 U CN 208970633U
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- negative electrode
- tab
- carbon layer
- positive plate
- current collector
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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
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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
- 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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- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
A kind of lithium battery structure with combination electrode of the utility model, including battery core, anode ear, negative electrode lug, outer packing, battery core includes positive plate, negative electrode tab, diaphragm, electrolyte, diaphragm separates the positive and negative multiple negative electrode tabs being arranged in a staggered manner, positive plate, and electrolyte fills up the gap inside battery core.Positive plate includes aluminum foil current collector, olefinic carbon layer, positive active material.Negative electrode tab includes aluminum foil current collector, layers of copper, silicon carbon layer, negative electrode active material.Positive plate is welded by positive plate tab and anode ear, and negative electrode tab passes through negative electrode tab tab and negative pole lug welding.Olefinic carbon layer, silicon carbon layer are the coating of irregular shape.The capacity and battery quality energy density that the lithium battery structure design of this programme can reduce cost, improve positive plate electric conductivity, negative electrode tab.
Description
Technical field
The utility model relates to battery manufacturing field more particularly to a kind of lithium battery structures with combination electrode.
Background technique
Lithium ion battery is usually to be made of battery core, protection circuit plate and shell.It is all to be led to inside battery core by positive and negative plate
It crosses diaphragm and separates and stack up from level to level, electrolyte is housed inside battery core.Existing lithium battery, positive plate are by aluminum foil current collector
Upper coating positive active material is constituted, and negative electrode tab is constituted by being coated with negative electrode active material in copper foil current collector.This existing lithium
Battery structure has the following deficiencies: between (1) pole piece and pole piece active material that electric conductivity and cementability are also greatly improved sky
Between.(2) copper mass is heavy, at high cost, and mass energy density is not satisfactory.
In order to further improve drawbacks described above, we have invented a kind of lithium battery structures with combination electrode.
Utility model content
The goal of the invention of the utility model is to solve existing lithium battery structure that there are between pole piece and pole piece active material
There are also considerable room for improvement for electric conductivity and cementability, and copper mass is heavy, at high cost, and mass energy density is not satisfactory to ask
Topic.Its specific solution is as follows:
A kind of lithium battery structure with combination electrode, including battery core, anode ear, negative electrode lug, outer packing, the battery core include
Positive plate, negative electrode tab, diaphragm, electrolyte, the diaphragm carry out the positive and negative multiple negative electrode tabs being arranged in a staggered manner, positive plate
It separates, the electrolyte fills up the gap inside battery core.
The positive plate include aluminum foil current collector, the olefinic carbon layer for being coated on the aluminum foil current collector surface, be coated on it is described
The positive active material of olefinic carbon layer surface.
The negative electrode tab includes aluminum foil current collector, the layers of copper for being coated on the aluminum foil current collector surface, is coated on the copper
The silicon carbon layer of layer surface, the negative electrode active material for being coated on the silicon-carbon layer surface.
The positive plate is welded by positive plate tab and the anode ear, and the negative electrode tab passes through negative electrode tab tab and institute
State negative pole lug welding.
Further, the olefinic carbon layer, the silicon carbon layer are the coating of irregular shape.
In conclusion being had the advantages that using the technical solution of the utility model
This programme solves existing lithium battery structure there are electric conductivity and cementabilities between pole piece and pole piece active material also
Be greatly improved space, copper mass weight, at high cost, the not satisfactory problem of mass energy density.The positive plate of this programme,
Negative electrode tab has been all made of aluminum foil current collector material, and is coated with one layer of layers of copper on the aluminum foil current collector surface of negative electrode tab, so not
Only instead of all making the traditional approach of negative electrode tab of copper foil current collector, and alleviates battery weight, saves material cost,
Battery quality energy density is also improved, the olefinic carbon layer on aluminum foil current collector surface is irregularly coated on, increases positive electrode active material
Electric conductivity between matter and aluminum foil current collector, while making the cementability of olefinic carbon layer and positive active material stronger.It is irregular to apply
Cloth layers of copper surface silicon carbon layer so that the cementability of silicon carbon layer and negative electrode active material is stronger.Irregularly it is coated on layers of copper table
The silicon carbon layer in face can be improved capacity of negative plates, and can play duplicate protection to aluminum foil current collector.In short, this programme design can drop
Low cost, the capacity and battery quality energy density for improving positive plate electric conductivity, negative electrode tab.
Detailed description of the invention
It, below will be to the utility model embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing needed in description is briefly described.It should be evident that the accompanying drawings in the following description is only that this is practical new
A part of the embodiment of type, for those of ordinary skill in the art, without any creative labor, moreover it is possible to
Enough obtain other drawings based on these drawings.
Fig. 1 is a kind of internal structure chart of the lithium battery structure with combination electrode of the utility model；
Fig. 2 is a kind of top view of the lithium battery structure with combination electrode of the utility model；
Fig. 3 is a kind of internal breakup figure of the lithium battery structure with combination electrode of the utility model.
Description of symbols:
1- battery core, 2- anode ear, 3- negative electrode lug, 4- outer packing, 5- positive plate, 6- negative electrode tab, 7- diaphragm,
8- aluminum foil current collector, 9- olefinic carbon layer, 10- positive active material, 11- layers of copper, 12- silicon carbon layer,
13- negative electrode active material, 14- positive plate tab, 15- negative electrode tab tab.
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.Obviously, 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 creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1 to Figure 3, a kind of lithium battery structure with combination electrode, including battery core 1, anode ear 2, negative electrode lug 3,
Outer packing 4, battery core 1 include positive plate 5, negative electrode tab 6, diaphragm 7, electrolyte (being not drawn into figure), and diaphragm 7 sets positive and negative be staggered
Multiple negative electrode tabs 6 for setting, positive plate 5 are separated, and electrolyte fills up the gap inside battery core 1.
Positive plate 5 include aluminum foil current collector 8, be coated on 8 surface of aluminum foil current collector olefinic carbon layer 9, be coated on 9 table of olefinic carbon layer
The positive active material 10 in face.
Negative electrode tab 6 include aluminum foil current collector 8, be coated on 8 surface of aluminum foil current collector layers of copper 11, be coated on 11 surface of layers of copper
Silicon carbon layer 12, be coated on the negative electrode active material 13 on 12 surface of silicon carbon layer.
Positive plate 5 is welded by positive plate tab 14 and anode ear 2, and negative electrode tab 6 passes through negative electrode tab tab 15 and negative electrode lug 6
Welding.
Olefinic carbon layer 9, silicon carbon layer 12 are the coating of irregular shape.
1 shape of battery core is rectangle, and anode ear 2, negative electrode lug 3 are located at ipsilateral one end of battery core 1, and outer packing 4 is aluminum plastic film.Just
Pole piece 5 and negative electrode tab 6, diaphragm 7 are rectangle, and positive plate tab 14, negative electrode tab tab 15 are arranged in a staggered manner respectively in ipsilateral notch
Both ends.
The outer packing of this programme can be rectangular Soft Roll, be also possible to steel shell cylinder etc..
In conclusion being had the advantages that using the technical solution of the utility model
This programme solves existing lithium battery structure there are electric conductivity and cementabilities between pole piece and pole piece active material also
Be greatly improved space, copper mass weight, at high cost, the not satisfactory problem of mass energy density.The positive plate of this programme
5, negative electrode tab 6 has been all made of 8 material of aluminum foil current collector, and is coated with one layer of layers of copper on 8 surface of the aluminum foil current collector of negative electrode tab 6
11, so not only instead of all making the traditional approach of negative electrode tab 6 of copper foil current collector, and alleviates battery weight, saves
Material cost, also improves battery quality energy density, is irregularly coated on the olefinic carbon layer 9 on 8 surface of aluminum foil current collector, increases
Electric conductivity between positive active material 10 and aluminum foil current collector 8, while making the viscous of olefinic carbon layer 9 and positive active material 10
Connecing property is stronger.It is irregularly coated on the silicon carbon layer 12 on 11 surface of layers of copper, so that silicon carbon layer 12 is bonding with negative electrode active material 13
Property is stronger.It is irregularly coated on the silicon carbon layer 12 on 11 surface of layers of copper, capacity of negative plates can be improved, and can rise to aluminum foil current collector 8
Duplicate protection.In short, the lithium battery structure design of this programme can reduce cost, improve 5 electric conductivity of positive plate, the appearance of negative electrode tab 6
Amount and raising battery quality energy density.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (2)
1. a kind of lithium battery structure with combination electrode, including battery core, anode ear, negative electrode lug, outer packing, the battery core includes just
Pole piece, negative electrode tab, diaphragm, electrolyte, the diaphragm by the positive and negative multiple negative electrode tabs being arranged in a staggered manner, positive plate carry out every
It opens, the electrolyte fills up the gap inside battery core, it is characterised in that:
The positive plate includes aluminum foil current collector, the olefinic carbon layer for being coated on the aluminum foil current collector surface, is coated on the olefinic carbon
The positive active material of layer surface；
The negative electrode tab includes aluminum foil current collector, the layers of copper for being coated on the aluminum foil current collector surface, is coated on the layers of copper table
The silicon carbon layer in face, the negative electrode active material for being coated on the silicon-carbon layer surface；
The positive plate passes through positive plate tab and the anode ear welds, and the negative electrode tab is born by negative electrode tab tab with described
Tab welding.
2. a kind of lithium battery structure with combination electrode according to claim 1, it is characterised in that: the olefinic carbon layer, described
Silicon carbon layer is the coating of irregular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821815026.1U CN208970633U (en) | 2018-11-05 | 2018-11-05 | A kind of lithium battery structure with combination electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821815026.1U CN208970633U (en) | 2018-11-05 | 2018-11-05 | A kind of lithium battery structure with combination electrode |
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| Publication Number | Publication Date |
|---|---|
| CN208970633U true CN208970633U (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821815026.1U Active CN208970633U (en) | 2018-11-05 | 2018-11-05 | A kind of lithium battery structure with combination electrode |
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| CN (1) | CN208970633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635139A (en) * | 2019-09-12 | 2019-12-31 | 深圳先进技术研究院 | Copper current collector, method for manufacturing the same, negative electrode, and secondary battery |
-
2018
- 2018-11-05 CN CN201821815026.1U patent/CN208970633U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110635139A (en) * | 2019-09-12 | 2019-12-31 | 深圳先进技术研究院 | Copper current collector, method for manufacturing the same, negative electrode, and secondary battery |
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