CN106299380B - A kind of ultraviolet light solidification carbon-coated aluminum foils collector and preparation method - Google Patents
A kind of ultraviolet light solidification carbon-coated aluminum foils collector and preparation method Download PDFInfo
- Publication number
- CN106299380B CN106299380B CN201610715505.5A CN201610715505A CN106299380B CN 106299380 B CN106299380 B CN 106299380B CN 201610715505 A CN201610715505 A CN 201610715505A CN 106299380 B CN106299380 B CN 106299380B
- Authority
- CN
- China
- Prior art keywords
- carbon
- ultraviolet light
- aluminum foils
- collector
- coated aluminum
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/665—Composites
- H01M4/667—Composites in the form of layers, e.g. coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
-
- 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
Abstract
The present invention discloses a kind of ultraviolet light solidification carbon-coated aluminum foils collector, including current collector aluminum foil, the surface of current collector aluminum foil is uniformly coated with carbonaceous conductive slurry, and carbonaceous conductive slurry consists of the following components in percentage by weight: carbon material 5-20%, UV-cured resin 3-10%, photoinitiator 0.5-10%, solvent 65-90%, auxiliary agent 0.03-1%.Ultraviolet light solidification carbon-coated aluminum foils collector of the present invention makees dispersing agent and curing agent using acrylic resin, reduces the dosage of organic resin significantly, increases the contact between carbon material, reduce resistance.Present invention employs modified light-cured acrylic resins, can be efficiently crosslinked under ultraviolet light, and the solidification for avoiding excessive temperature keeps aluminium foil severely deformed, and obtain the comprehensive performances such as adhesion strength is good, solvent resistance is strong, chemical property is stable.
Description
Technical field
The invention belongs to field of lithium ion battery material, specifically a kind of ultraviolet light solidification carbon-coated aluminum foils collector and preparation
Method.
Background technique
New-energy automobile has the advantages that zero-emission, mute low with charging cost etc., increasingly by the pro-gaze of user.Lithium from
Sub- battery has many advantages, such as energy density height, has extended cycle life and the high first choice as new-energy automobile of voltage platform.Ferric phosphate
The power battery of lithium system is highly-safe, cheap, occupies most of market share in current domestic power battery.Phosphorus
The major defect of sour iron lithium is that ionic diffusion coefficient and conductivity are all lower, respectively 5 × 10-15cm2·S-1, 10-9S·cm-1。
It is main at present to pass through both reduction the methods of material particle size and carbon coating improvement performance.In lithium ion battery, interface resistance
It is an important factor for influencing the internal resistance of cell.Positive electrode active materials and aluminum foil current collector contact point have biggish resistance, in battery
Polarization is generated when use.After aluminium foil surface coats one layer of carbonaceous conductive layer, carbon material is between positive active material and aluminium foil, is risen
To transitional function, coming into full contact with for aluminium foil and active material is increased, reduces the interface of positive electrode and collector significantly
Resistance.In addition, carbon coat can also increase the adhesion strength of active material and collector, and there is stronger corrosion resistance,
It plays a protective role to aluminium foil, increases the cycle life of battery, improve high rate capability.Domestic main power lithium battery manufacturer is
Gradually original aluminium foil is substituted using carbon-coated aluminum foils.
The preparation of electrocondution slurry is the key that carbon-coated aluminum foils technology, and carbon-coated aluminum foils of good performance must have following base
This condition: 1. adhesion strengths are good, and the resin in slurry and aluminium foil surface need stronger chemically or physically active force, it is ensured that coating
Stablize；2. conductivity is high, carbon material must account for 50 or more solid content first, and the carbon material selected has preferable conduction
Property；3. chemical property is stablized, resin, dispersing agent, auxiliary agent of selection etc. have stronger resistant to chemical etching, oxidation resistent susceptibility.
The excellent carbon-coated aluminum foils of processability need while guaranteeing adhesion strength, farthest promote electric conductivity,
So adding resin as few as possible in a certain amount of carbon material.This requires resin to have stronger dispersibility and adherency
Power.The crosslinking curing of resin is to improve to apply film dynamic performance intensity, the important means of solvent resistance and chemical stability.
Many thermosetting resin function admirables are able to satisfy above-mentioned condition, but when the very high crosslinking temperature of needs or crosslinking
Between, 170-180 DEG C of temperature, the crosslinking time of 1min or more are needed as epoxy-amino group is full cross-linked, cross-linking efficiency is low, no
Conducive to the production of assembly line.Aluminium foil in current driving force lithium electricity is between 13-20 μm, and under this high-temperature baking, aluminium foil can seriously become
Shape changes tension of aluminum foil distribution, causes following process difficult.As aluminum foil thickness is further thinning, drying temperature will be further
Decline.
Summary of the invention
In view of the deficiencies of the prior art, the present invention proposes that a kind of solvent resistance is good, electric conductivity is high and chemical stability is good
Ultraviolet light solidify carbon-coated aluminum foils collector.The surface of the aluminum foil current collector is coated with carbonaceous conductive slurry, and carbonaceous conductive slurry uses
Acrylic resin itself is used as dispersing agent to disperse carbon material, and additive amount is few, while guaranteeing superior electrical conductivity, has excellent
The coating of mechanical strength and uniform and smooth.Process of the invention can use water-based system, have environmentally friendly, at low cost etc. excellent
Gesture.The carbon coat of carbon-coated aluminum foils of the invention only need to be between 60-110 DEG C using the drying temperature in ultraviolet technique, Neng Goubao
Aluminium foil processing is demonstrate,proved to stablize.Lower drying temperature reduces energy consumption also significantly.
The carbon-coated aluminum foils collector can be used for cobalt acid lithium, LiMn2O4, LiFePO4 and ternary material etc. for positive electrode
Lithium ion battery in, improve carbon coat aluminum foil current collector electric conductivity, chemical stability and mechanical performance.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of ultraviolet light solidification carbon-coated aluminum foils collector, including current collector aluminum foil, which is characterized in that the current collector aluminum foil
Surface be uniformly coated with carbonaceous conductive slurry, the carbonaceous conductive slurry consists of the following components in percentage by weight: carbon material 5-
20%, UV-cured resin 3-10%, photoinitiator 0.5-10%, solvent 65-90%, auxiliary agent 0.03-1%.
Further scheme, the carbon material are one of carbon black, graphene, graphite flake, carbon nanotube or a variety of.
Further scheme, the UV-cured resin are epoxy modified acrylic resin, polyurethane-modified acrylic acid tree
One of the acrylic resin or a variety of of rouge, polyester modified acrylic resin, carbon-carbon double bonds.
Further scheme, the photoinitiator are benzophenone, benzoin isobutyl propyl alcohol, 2,2 '-azo groups-bis- (2- amidino groups
Propane), triaryl sulfonium salts photoinitiator, methyl benzoylformate, acylphosphanes hydrochlorate photoinitiator, NITRODIAZONIUM FLUOROBORATE, water
One of dissolubility arone photoinitiator is a variety of.
Further scheme, the solvent are one of dimethylbenzene, deionized water, alcohols, ketone, esters or a variety of.
Further scheme, the auxiliary agent include defoaming agent, substrate wetting agents.
Invention additionally discloses the preparation methods that a kind of ultraviolet light solidifies carbon-coated aluminum foils collector, comprising the following steps:
(1) UV-cured resin is dissolved in solvent, auxiliary agent is added, stirs evenly, carbon material is added, condense water cooling
But disperse 3-5h with high speed disperser under the conditions of, add photoinitiator, stir evenly, form slurry；
(2) step (1) slurry is coated in current collector aluminum foil using dimple version, is in 60-110 DEG C of hot wind and wavelength
10-200s is kept to solidify carbon-coated aluminum foils collector to get ultraviolet light in the ultraviolet light baking oven of 10-400nm.
Further scheme, the high speed disperser revolving speed is in 4000r/min or more.
Further scheme, the viscosity of the slurry are 20-200mPaS, and the solid content of slurry is 5-30%.
Further scheme, the carbon-coated aluminum foils carbon coat is with a thickness of 1-3 μm.
Beneficial effects of the present invention: carbon-coated aluminum foils collector of the invention makees dispersing agent and solidification using acrylic resin
Agent reduces the dosage of organic resin significantly, increases the contact between carbon material, reduces resistance.Present invention employs change
The light-cured acrylic resin of property, with can efficiently be crosslinked under ultraviolet light, the solidification for avoiding excessive temperature keeps aluminium foil tight
It deforms again, and obtains the comprehensive performances such as adhesion strength is good, solvent resistance is strong, chemical property is stable.
Detailed description of the invention
Fig. 1 is that the SEM of the embodiment of the present invention 3 schemes.
Fig. 2 is the structural schematic diagram before carbon-coated aluminum foils carbon coat photo-initiated crosslinking of the invention.
In figure: the crosslinked groups such as double bond, epoxy group in 1- acrylic resin, 2- photoinitiator, 3 acrylic acid resin, 4-
Carbon material, 5- aluminum foil substrate.
Specific embodiment
Present invention is further described in detail in the following with reference to the drawings and specific embodiments.
Embodiment 1
A kind of ultraviolet light solidification carbon-coated aluminum foils collector, including current collector aluminum foil, the surface of current collector aluminum foil uniformly coat
There is carbonaceous conductive slurry, carbonaceous conductive slurry consists of the following components in percentage by weight:
Ultraviolet light solidifies the preparation method of carbon-coated aluminum foils collector:
The water-soluble modified acrylic resin of carbon-carbon double bonds is mixed with deionized water, substrate wetting agents and defoaming is added
Agent stirs evenly, and adds carbon black；Under condensed water cooling condition, disperse 4h in the high speed disperser of 4000r/min；It is added
Photoinitiator acylphosphanes hydrochlorate, low speed disperse 0.5h；Gained slurry viscosity under 10/S shear rate is 200mPaS, admittedly contain
Amount is 20%.It is coated using dimple version coating equipment, under the conditions of 90 DEG C of hot winds, the ultraviolet light ring of 300-380nm wavelength
It is 10 seconds dry in border.After drying, carbon coat is with a thickness of 2 μm.
Embodiment 2
A kind of ultraviolet light solidification carbon-coated aluminum foils collector, including current collector aluminum foil, the surface of current collector aluminum foil uniformly coat
There is carbonaceous conductive slurry, carbonaceous conductive slurry consists of the following components in percentage by weight:
Ultraviolet light solidifies the preparation method of carbon-coated aluminum foils collector:
Epoxy modified acrylic resin is mixed with dimethylbenzene, substrate wetting agents and defoaming agent is added, stirs evenly, then plus
Enter graphene；Under condensed water cooling condition, disperse 3h in the high speed disperser of 5000r/min；Triaryl sulfonium salts light is added
Initiator, low speed disperse 0.5h；Gained slurry viscosity under 10/S shear rate is 70mPaS, solid content 15%.It utilizes
The coating of dimple version coating equipment, it is 60 seconds dry in the ultraviolet light environment of 240-350nm wavelength under the conditions of 110 DEG C of hot winds.
After drying, carbon coat is with a thickness of 1.5 μm.
Embodiment 3
A kind of ultraviolet light solidification carbon-coated aluminum foils collector, including current collector aluminum foil, the surface of current collector aluminum foil uniformly coat
There is carbonaceous conductive slurry, carbonaceous conductive slurry consists of the following components in percentage by weight:
Ultraviolet light solidifies the preparation method of carbon-coated aluminum foils collector:
Water-soluble unsaturated polyester modified acrylic resin is uniformly mixed with deionized water, substrate wetting agents are added and disappear
Infusion stirs evenly, and adds graphite flake；Under condensed water cooling condition, disperse 5h in the high speed disperser of 5000r/min；
2,2 '-azo group of photoinitiator-bis- (2- amidine propanes) is added, low speed disperses 0.5h；Gained slurry is under 10/S shear rate
Viscosity is 20mPaS, solid content 5%.It is coated using dimple version coating equipment, under the conditions of 70 DEG C of hot winds, 280-350nm
It is 200 seconds dry in the ultraviolet light environment of wavelength.After drying, carbon coat is with a thickness of 3 μm.
Embodiment 4
A kind of ultraviolet light solidification carbon-coated aluminum foils collector, including current collector aluminum foil, the surface of current collector aluminum foil uniformly coat
There is carbonaceous conductive slurry, carbonaceous conductive slurry consists of the following components in percentage by weight:
Ultraviolet light solidifies the preparation method of carbon-coated aluminum foils:
It is mixed with deionized water by soluble epoxide is acrylic resin modified, substrate wetting agents and defoaming agent, stirring is added
Uniformly, carbon black and graphite flake are added；Under condensed water cooling condition, disperse 3h in the high speed disperser of 5500r/min；It is added
Photoinitiator NITRODIAZONIUM FLUOROBORATE, low speed disperse 0.5h；Gained slurry viscosity under 10/S shear rate is 110mPaS, Gu
Content is 30%.It is coated using dimple version coating equipment, under the conditions of 60 DEG C of hot winds, the ultraviolet light of 250-380nm wavelength
It is 100 seconds dry in environment.After drying, carbon coat is with a thickness of 1 μm.
Fig. 1 is 3 gained carbon-coated aluminum foils surface SEM of embodiment of the present invention figure, and wherein laminated structure is graphite flake, figure layer carbon materials
Expect sharp outline, is conducive to sufficiently contact with positive electrode.
Fig. 2 is microstructure schematic diagram of the invention, and acrylic resin has preferable peptizaiton, acrylic acid chain to carbon black
Section is adsorbed on carbon material surface and provides steric hindrance, guarantees carbon material stable dispersion.Photoinitiator causes unsaturated bond, ring in resin
The groups such as oxygen key crosslink, and last sufficiently solidification makes figure layer have higher adhesion strength and solvent resistance.
Table is first is that carbon-coated aluminum foils solvent resistance obtained by 4 embodiments of the invention.Data are corresponding molten with speckling in table
The cotton swab coating surface of agent, the number wiped until exposing aluminum foil substrate.Illustrate the painting carbon of method preparation of the invention
Aluminium foil has good solvent resistance, guarantees there is stable performance in the battery.
The solvent resistant wiping properties for the carbon-coated aluminum foils that one embodiment 1-4 of table is obtained
| Water | NMP | Electrolyte | |
| Embodiment 1 | 930 times | 390 times | 610 times |
| Embodiment 2 | 1020 times | 420 times | 650 times |
| Embodiment 3 | 650 times | 350 times | 550 times |
| Embodiment 4 | 810 times | 370 times | 580 times |
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from invention
Structure or beyond the scope defined by this claim, is within the scope of protection of the invention.
Claims (9)
1. a kind of ultraviolet light solidifies carbon-coated aluminum foils collector, including current collector aluminum foil, which is characterized in that the current collector aluminum foil
Surface is uniformly coated with carbonaceous conductive slurry, and the carbonaceous conductive slurry consists of the following components in percentage by weight: carbon material 5-
20%, UV-cured resin 3-10%, photoinitiator 0.5-10%, solvent 65-90%, auxiliary agent 0.03-1%；
The UV-cured resin is epoxy modified acrylic resin, polyurethane modified acrylic resin, polyester modification propylene
One of the acrylic resin or a variety of of acid resin, carbon-carbon double bonds.
2. ultraviolet light according to claim 1 solidifies carbon-coated aluminum foils collector, which is characterized in that the carbon material is charcoal
One of black, graphene, graphite flake, carbon nanotube are a variety of.
3. ultraviolet light according to claim 1 solidifies carbon-coated aluminum foils collector, which is characterized in that the photoinitiator is two
Benzophenone, benzoin isobutyl propyl alcohol, 2,2 '-azo groups-bis- (2- amidine propane), triaryl sulfonium salts photoinitiator, benzoyl first
One of sour methyl esters, acylphosphanes hydrochlorate photoinitiator, NITRODIAZONIUM FLUOROBORATE, water-soluble arone photoinitiator are a variety of.
4. ultraviolet light according to claim 1 solidifies carbon-coated aluminum foils collector, which is characterized in that the solvent is diformazan
One of benzene, deionized water, alcohols, ketone, esters are a variety of.
5. ultraviolet light according to claim 1 solidifies carbon-coated aluminum foils collector, which is characterized in that the auxiliary agent includes defoaming
Agent, substrate wetting agents.
6. a kind of method for preparing ultraviolet light as described in claim 1 and solidifying carbon-coated aluminum foils collector, which is characterized in that including
Following steps:
(1) UV-cured resin is dissolved in solvent, auxiliary agent is added, stirs evenly, carbon material, the cooling item of condensed water is added
Disperse 3-5h with high speed disperser under part, add photoinitiator, stir evenly, forms slurry；
(2) step (1) slurry is coated in current collector aluminum foil using dimple version, is 10- in 60-110 DEG C of hot wind and wavelength
10-200s is kept to solidify carbon-coated aluminum foils collector to get ultraviolet light in the ultraviolet light baking oven of 400nm.
7. according to the method described in claim 6, it is characterized in that, the high speed disperser revolving speed is in 4000r/min or more.
8. according to the method described in claim 6, slurry is consolidated it is characterized in that, the viscosity of the slurry is 20-200mPa S
Content is 5-30%.
9. according to the method described in claim 6, it is characterized in that, the carbon-coated aluminum foils carbon coat is with a thickness of 1-3 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610715505.5A CN106299380B (en) | 2016-08-24 | 2016-08-24 | A kind of ultraviolet light solidification carbon-coated aluminum foils collector and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610715505.5A CN106299380B (en) | 2016-08-24 | 2016-08-24 | A kind of ultraviolet light solidification carbon-coated aluminum foils collector and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106299380A CN106299380A (en) | 2017-01-04 |
| CN106299380B true CN106299380B (en) | 2019-11-01 |
Family
ID=57614921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610715505.5A Active CN106299380B (en) | 2016-08-24 | 2016-08-24 | A kind of ultraviolet light solidification carbon-coated aluminum foils collector and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106299380B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359042A (en) * | 2021-06-07 | 2021-09-07 | 芜湖天弋能源科技有限公司 | Method for nondestructive testing of carbon coating missing layer of anode of lithium ion battery |
| CN114447284B (en) * | 2022-01-13 | 2024-04-05 | 东莞市无中有新能源科技有限公司 | Preparation method of graphene negative plate and lithium battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719188A (en) * | 2012-06-12 | 2012-10-10 | 江苏科技大学 | Hydrophilic aluminum foil coating with integrated bottom and top and preparation method thereof |
| CN102742047A (en) * | 2009-10-07 | 2012-10-17 | 美奥泰科公司 | Actinic and electron beam radiation curable electrode binders and electrodes incorporating same |
| CN103319747A (en) * | 2013-07-16 | 2013-09-25 | 莱州联友金浩新型材料有限公司 | Grafting treatment apparatus and grafting treatment method for battery diaphragm material |
| CN104157810A (en) * | 2013-05-15 | 2014-11-19 | 比亚迪股份有限公司 | Diaphragm, preparation method of diaphragm and lithium ion battery |
-
2016
- 2016-08-24 CN CN201610715505.5A patent/CN106299380B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102742047A (en) * | 2009-10-07 | 2012-10-17 | 美奥泰科公司 | Actinic and electron beam radiation curable electrode binders and electrodes incorporating same |
| CN102719188A (en) * | 2012-06-12 | 2012-10-10 | 江苏科技大学 | Hydrophilic aluminum foil coating with integrated bottom and top and preparation method thereof |
| CN104157810A (en) * | 2013-05-15 | 2014-11-19 | 比亚迪股份有限公司 | Diaphragm, preparation method of diaphragm and lithium ion battery |
| CN103319747A (en) * | 2013-07-16 | 2013-09-25 | 莱州联友金浩新型材料有限公司 | Grafting treatment apparatus and grafting treatment method for battery diaphragm material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106299380A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108511685B (en) | Lithium ion battery negative plate containing conductive coating and preparation method thereof | |
| CN108511689B (en) | Lithium ion battery positive plate containing conductive coating and preparation method thereof | |
| CN103400964B (en) | A kind of preparation method of iron phosphate lithium electrode | |
| CN105895855A (en) | Electrode coated with conductive carbon layer on surface and preparation method of electrode | |
| CN106025290A (en) | Carbon-ceramic coated aluminum foil current collector and preparation method therefor | |
| CN106848312B (en) | A kind of modified porous graphene, modified porous graphene negative electricity pole piece and preparation method thereof | |
| CN102332583B (en) | Method for preparing lithium iron phosphate anode material with carbon-coated surface for lithium battery | |
| CN203746972U (en) | Positive electrode plate | |
| CN103227318A (en) | Silicon-based composite material, preparation method and application thereof | |
| CN104466096A (en) | Silicon negative electrode plate of lithium ion battery and preparation method of silicon negative electrode plate | |
| CN107640757A (en) | A kind of preparation method of compound carbosphere and compound carbosphere and its lithium-ion capacitor being prepared | |
| CN107910513A (en) | Compound negative electrode of lithium ion battery of a kind of graphene/silicon and preparation method thereof | |
| CN106560943A (en) | Silicon-carbon negative electrode and preparation method thereof, and lithium ion battery | |
| CN106384807A (en) | Lithium ion battery positive electrode plate and preparation method thereof | |
| CN107959027A (en) | A kind of preparation method of lithium ion battery silicon substrate negative electrode binder and the negative plate containing the binding agent | |
| CN110364732A (en) | With the compound zinc load and preparation method and application of inorganic functional decorative layer in a kind of water system battery | |
| CN110518253A (en) | A kind of cathode of lithium battery collector and preparation method thereof | |
| WO2017024897A1 (en) | Preparation method for modified lithium-ion battery negative electrode material | |
| CN106299380B (en) | A kind of ultraviolet light solidification carbon-coated aluminum foils collector and preparation method | |
| CN109148865A (en) | The preparation method of lithium or the compound carbosphere negative electrode material of sodium-ion battery hard charcoal | |
| CN104600246A (en) | Lithium ion battery electrode based on graphene and preparation method thereof | |
| CN108300056A (en) | A kind of cathode pole piece of lithium ion secondary battery primary coat coating | |
| CN113013382B (en) | Method for preparing solid-state battery electrode by dry method, solid-state battery electrode and solid-state battery | |
| CN107749465A (en) | A kind of LiFePO4 NCM ternary material power lithium-ion batteries | |
| CN107681159B (en) | Metal foil current collector for battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |