CN109273760A - A kind of lithium ion cell electrode piece and coating method with solid-state electrolyte layer - Google Patents

A kind of lithium ion cell electrode piece and coating method with solid-state electrolyte layer Download PDF

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Publication number
CN109273760A
CN109273760A CN201811158562.3A CN201811158562A CN109273760A CN 109273760 A CN109273760 A CN 109273760A CN 201811158562 A CN201811158562 A CN 201811158562A CN 109273760 A CN109273760 A CN 109273760A
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lithium
solid
coating
electrolyte layer
binder
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卢鹏
刘耀春
李明
封平净
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Huaian New Energy Material Technology Research Institute
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Huaian New Energy Material Technology Research Institute
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
    • H01M10/0562—Solid materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • 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
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0404—Methods of deposition of the material by coating on electrode collectors
    • 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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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a kind of lithium ion cell electrode piece and coating method with solid-state electrolyte layer, it is once coated with, dried with active material slurry including lithium ion battery, secondary coating, the drying of solid electrolyte slurry, the solid electrolyte transition zone that products obtained therefrom has ionic conductivity high, SEI film can be hindered to grow simultaneously, inhibit lithium dendrite growth, improve chemical property, the anti-hydrogen fluoride corrosion ability of solid-state electrolyte layer is strong simultaneously, and battery safety is high.

Description

A kind of lithium ion cell electrode piece and coating method with solid-state electrolyte layer
Technical field
The present invention relates to lithium ion cell electrode piece manufacturing technology fields, more specifically, it relates to which a kind of have solid-state The lithium ion cell electrode piece and coating method of electrolyte layer.
Background technique
It is well known that lithium ion battery is widely used in the fields such as 3C digital product, new-energy automobile.Traditional lithium from Sub- battery is mainly made of components such as battery case, positive and negative pole material, diaphragm and electrolyte.In order to realize the excellent electricity of lithium battery Chemical property needs for positive and negative pole material powder to be uniformly coated on the collector of positive and negative pole material, forms electrode slice, therefore The quality of coating process will directly influence lithium battery integrated performance.Traditional coating process is mainly by active material, conduction Agent and binder are mixed into after paste slurry to be coated with forms electrode slice on a current collector.Battery in the long-term use can be certainly A kind of SEI film and lithium dendrite growth occurs into, hinders the shuttle of lithium ion, reduces the chemical property of battery.
Summary of the invention
The purpose of the present invention is to provide a kind of lithium ion cell electrode piece and coating method with solid-state electrolyte layer, The transition zone that the electrode obtained piece has ionic conductivity high, while SEI film can be hindered to grow, inhibit lithium dendrite growth, raisingization Performance is learned, while the anti-hydrogen fluoride corrosion ability of solid-state electrolyte layer is strong, battery safety is high.
To achieve the above object, the present invention provides the following technical scheme that
A kind of lithium ion cell electrode piece coating method with solid-state electrolyte layer, includes the following steps,
1) prepared by active material slurry: lithium ion battery active material, conductive agent and binder are quickly stirred into uniformly Paste slurry, active material account for 70wt% ~ 95wt%, and conductive agent accounts for 5% ~ 25%, and binder accounts for 5wt% ~ 20wt%；
2) primary coating: above-mentioned active material slurry being uniformly coated on collector, the thickness of coating, that is, scrapes the edge of a knife to collection The spacing of fluid is 10 μm ~ 500 μm, and the speed of coating, i.e. scraper are 1cm/s ~ 500cm/ relative to the movement speed of collector s；
3) first drying: the wet electrode slice after coating is dried into 1 ~ 2h in 40 DEG C ~ 80 DEG C of drying box, obtains base's lithium Battery electrode piece；
4) prepared by solid electrolyte slurry: solid electrolyte and binder are quickly stirred into uniform paste slurry, solid-state electricity Solution matter is lithium lanthanum zirconium oxygen, Li-La-Ti oxygen, lithium aluminium silicon oxygen, any one in lithium aluminium titanium phosphorus oxygen；Solid electrolyte account for 90wt% ~ 99wt%, binder account for 1wt% ~ 10wt%；
5) secondary coating: being uniformly coated to step 3 gained base electrode of lithium cell on piece for above-mentioned solid electrolyte slurry, applies The thickness of cloth, that is, the spacing for scraping the edge of a knife to electrode slice are 10 μm ~ 100 μm；The shifting of the speed of coating, i.e. scraper relative to collector Dynamic speed is 1cm/s ~ 500cm/s；
6) secondary drying: by the first 1 ~ 2h of drying in 40 DEG C ~ 80 DEG C of drying box of the lithium battery electrode plate after secondary coating, then 6 ~ 12h is toasted in 100 DEG C ~ 150 DEG C of baking oven, obtains the lithium battery electrode plate with solid-state electrolyte layer.
The present invention is further improved technical solution, and step (1) active material is tertiary cathode material, lithium-rich manganese-based Positive electrode, LiFePO 4, cobalt acid lithium, LiMn2O4, nickel ion doped, lithium titanate, silicon-carbon cathode material, in graphite cathode material Any one.
The present invention is further improved technical solution, and step (1) conductive agent is super-p or acetylene black.
The present invention is further improved technical solution, and binder is the nmp solution of PVDF in step (1), step (4), The concentration of middle PVDF is 5g/L ~ 100g/L.
The present invention also provides according to claim 1 to made from 4 any coating methods have solid electrolyte The lithium ion cell electrode piece of layer.
The invention has the advantages that:
The present invention is equably coated with one layer of solid-state electrolyte layer in conventional electrode of lithium cell on piece again, and it is high to form ionic conductivity Transition zone, while the growth of SEI film can be hindered, also inhibit the growth of Li dendrite, significantly improve the chemical property of battery；And Enhance the ability of the anti-hydrogen fluoride corrosion of electrode slice, to improve the security performance of battery, battery can be made overcharging or The safety accidents such as high temperature, flatulence even explosion are not generated in the case where over-discharge.
Specific embodiment
A kind of coating method of lithium ion cell electrode piece with solid-state electrolyte layer of the present invention, including following step It is rapid:
1) preparation of active material slurry: lithium ion battery active material, conductive agent and binder are quickly stirred into uniformly Paste slurry, active material be tertiary cathode material, lithium-rich manganese-based anode material, LiFePO 4, cobalt acid lithium, LiMn2O4, Nickel ion doped, lithium titanate, silicon-carbon cathode material, any one in graphite cathode material；Conductive agent is super-p, acetylene black In any one；Binder is the nmp solution of PVDF, and wherein the concentration of PVDF is 5g/L ~ 100g/L；Active material accounts for 70wt% ~ 95wt%, conductive agent account for 5% ~ 25%, and binder accounts for 5wt% ~ 20wt%；
2) primary coating: above-mentioned slurry is uniformly coated on collector, and generally, positive electrode is using aluminium foil as afflux Body, negative electrode material is using copper foil as collector；The thickness of coating, that is, the spacing for scraping the edge of a knife to collector are 10 μm ~ 500 μm； The speed of coating, i.e. scraper are 1cm/s ~ 500cm/s relative to the movement speed of collector；
3) first drying: the wet electrode slice after coating is first dried into 1 ~ 2h in 40 DEG C ~ 80 DEG C of air dry oven, is obtained Conventional lithium battery electrode plate；
4) preparation of solid electrolyte slurry: quickly stirring into uniform paste slurry for solid electrolyte and binder, wherein Mixing speed is 500 ~ 5000rpm；Solid electrolyte is lithium lanthanum zirconium oxygen (LLZO), Li-La-Ti oxygen (LLTO), lithium aluminium silicon oxygen (LASO), any one in lithium aluminium titanium phosphorus oxygen (LATPO)；Binder is the nmp solution of PVDF, and wherein the concentration of PVDF is 5g/L ~100g/L；Active material accounts for 90wt% ~ 99wt%, and binder accounts for 1wt% ~ 10wt%；
5) above-mentioned solid electrolyte slurry secondary coating: is uniformly coated to conventional lithium battery electrode plate.The thickness of coating, The spacing for scraping the edge of a knife to electrode slice is 10 μm ~ 100 μm；The speed of coating, i.e. scraper are relative to the movement speed of collector 1cm/s~500cm/s；
3) secondary drying: first drying 1 ~ 2h for the lithium battery electrode plate after secondary coating in 40 DEG C ~ 80 DEG C of air dry oven, 6 ~ 12h is toasted in 100 DEG C ~ 150 DEG C of baking oven again, obtains the lithium battery electrode plate with solid-state electrolyte layer.
Embodiment 1
The preparation of tertiary cathode material electrode slice
Lithium tertiary cathode material, conductive agent and binder are quickly stirred into uniform paste slurry, conductive agent super-p； Binder is the nmp solution of PVDF, and wherein the concentration of PVDF is 50g/L.Active material accounts for 90wt%, and conductive agent accounts for 5%, binder Account for 5wt%.Then slurry is uniformly coated on aluminium foil.The thickness of coating, that is, the spacing for scraping the edge of a knife to collector are 100 μm. The speed of coating, i.e. scraper are 2cm/s relative to the movement speed of collector.Again by the electrode slice moistened after coating 40 DEG C ~ 1h is dried in 80 DEG C of air dry oven, obtains conventional lithium battery electrode film.
Solid electrolyte and binder are quickly stirred into uniform paste slurry, wherein mixing speed is 2000rpm；Gu State electrolyte is lithium lanthanum zirconium oxygen (LLZO), and binder is the nmp solution of PVDF, and wherein the concentration of PVDF is 50g/L.LLZO is accounted for 95wt%, binder account for 5wt%.Solid electrolyte slurry is uniformly coated to conventional lithium battery electrode plate again.The thickness of coating Degree, that is, the spacing for scraping the edge of a knife to electrode slice are 50 μm.The speed of coating, i.e. scraper are 2cm/ relative to the movement speed of collector s.1.5h is dried in 40 DEG C ~ 80 DEG C of air dry oven again, then toasts 10h in 100 DEG C ~ 150 DEG C of baking oven, is implemented Example 1.
Embodiment 2
The preparation of lithium iron phosphate cathode material electrode slice
Lithium lithium iron phosphate cathode material, conductive agent and binder are quickly stirred into uniform paste slurry, conductive agent is super-p；Binder is the nmp solution of PVDF, and wherein the concentration of PVDF is 50g/L.Active material accounts for 90wt%, and conductive agent accounts for 5%, binder accounts for 5wt%.Slurry is uniformly coated on aluminium foil afterwards.The thickness of coating, that is, scrape the edge of a knife to collector spacing It is 500 μm.The speed of coating, i.e. scraper are 50cm/s relative to the movement speed of collector.In 40 DEG C ~ 80 DEG C of forced air drying 2h is dried in case, obtains conventional lithium battery electrode film.
Solid electrolyte and binder are quickly stirred into uniform paste slurry, wherein mixing speed is 5000rpm；Gu State electrolyte is Li-La-Ti oxygen (LLTO)；Binder is the nmp solution of PVDF, and wherein the concentration of PVDF is 100g/L.Active matter Matter accounts for 90wt%, and binder accounts for 10wt%.Solid electrolyte slurry is uniformly coated to conventional lithium battery electrode plate again.Coating Thickness, that is, scrape the edge of a knife to electrode slice spacing be 50 μm.The speed of coating, i.e. scraper are relative to the movement speed of collector 2cm/s.2h is dried in 40 DEG C ~ 80 DEG C of air dry oven again, then toasts 6h in 100 DEG C ~ 150 DEG C of baking oven, obtains reality Apply example 2.
Embodiment 3
The preparation of graphite cathode material electrode slice
Lithium graphite cathode material, conductive agent and binder are quickly stirred into uniform paste slurry.Conductive agent is super-p； Binder is the nmp solution of PVDF, and wherein the concentration of PVDF is 30g/L.Active material accounts for 90wt%, and conductive agent accounts for 5%, binder Account for 5wt%.Slurry is uniformly coated on copper foil afterwards.The thickness of coating, that is, the spacing for scraping the edge of a knife to collector are 100 μm.It applies The speed of cloth, i.e. scraper are 2cm/s relative to the movement speed of collector.It is dried in 40 DEG C ~ 80 DEG C of air dry oven 1.5h obtains conventional negative electrodes for lithium batteries piece.
Solid electrolyte and binder are quickly stirred into uniform paste slurry.Wherein mixing speed is 2000rpm；Gu State electrolyte is lithium lanthanum zirconium oxygen (LLZO)；Binder is the nmp solution of PVDF, and wherein the concentration of PVDF is 50g/L.Active material 95wt% is accounted for, binder accounts for 5wt%.Solid electrolyte slurry is uniformly coated to conventional lithium battery electrode plate again.Coating Thickness, that is, the spacing for scraping the edge of a knife to electrode slice are 50 μm.The speed of coating, i.e. scraper are relative to the movement speed of collector 2cm/s.2h is dried in 40 DEG C ~ 80 DEG C of air dry oven again, then toasts 10h in 100 DEG C ~ 150 DEG C of baking oven, obtains reality Apply example 3.
Comparative example 1 is the conventional lithium battery electrode plate of the uncoated solid electrolyte slurry of embodiment 1.
Comparative example 2 is the conventional lithium battery electrode plate of the uncoated solid electrolyte slurry of embodiment 2.
Comparative example 3 is the conventional lithium battery electrode plate of the uncoated solid electrolyte slurry of embodiment 3.
Electrochemical property test:
Electrode slice being prepared with above-described embodiment, comparative example, working electrode being made, lithium metal is reference electrode, and Celgard2400 is Diaphragm, 1mol/LLiPF6EC/DEC/DMC (volume ratio 1:1:1) solution be electrolyte.It is assembled into CR2032 button cell, Constant current charge-discharge performance test is carried out on battery test system.R seiIt is measured by electrochemical workstation.Form soft-package battery test Whether battery has the case where bulge.Chemical property comparison is shown in Table 1.
By comparison it can be found that cycle performance and security performance in embodiment are superior to comparative example.This is mainly due to The protective effect of solid-state electrolyte layer can inhibit the generation of SEI film and the growth of Li dendrite, as seen from Table 1R seiValue obviously subtract Small, this means that solid electrolyte membrane can effectively inhibit the growth of SEI；Make active material from corrosion simultaneously, it is battery Learn performance, safety all gets a promotion.
Table 1
Sample Voltage window Specific discharge capacity Multiplying power Cycle-index Capacity retention ratio Whether flatulence R sei
Embodiment 1 3.0~4.3V 179 mA h g-1 1 C 500 85.7% It is no 305Ω
Comparative example 1 3.0~4.3V 178 mA h g-1 1 C 500 81.1% It is 78Ω
Embodiment 2 2.7~4.2V 160 mA h g-1 1 C 500 82.4% It is no 205Ω
Comparative example 2 2.7~4.2V 160 mA h g-1 1 C 500 80.2% It is 55Ω
Embodiment 3 1.5~0.01V 251 mA h g-1 1 C 500 85.4% It is no 405Ω
Comparative example 3 1.5~0.01V 250mA h g-1 1 C 500 82.0% It is 97Ω
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, in above embodiments and description Description merely illustrates the principles of the invention, and without departing from the spirit and scope of the present invention, the present invention also has various Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention, and the claimed scope of the invention is by institute Attached claims and its equivalent thereof.

Claims (5)

1. a kind of lithium ion cell electrode piece coating method with solid-state electrolyte layer, includes the following steps,
1) prepared by active material slurry: lithium ion battery active material, conductive agent and binder are quickly stirred into uniformly Paste slurry, active material account for 70wt% ~ 95wt%, and conductive agent accounts for 5% ~ 25%, and binder accounts for 5wt% ~ 20wt%；
2) primary coating: above-mentioned active material slurry being uniformly coated on collector, the thickness of coating, that is, scrapes the edge of a knife to collection The spacing of fluid is 10 μm ~ 500 μm, and the speed of coating, i.e. scraper are 1cm/s ~ 500cm/ relative to the movement speed of collector s；
3) first drying: the wet electrode slice after coating is dried into 1 ~ 2h in 40 DEG C ~ 80 DEG C of drying box, obtains base's lithium Battery electrode piece；
It is characterized by:
4) prepared by solid electrolyte slurry: solid electrolyte and binder are quickly stirred into uniform paste slurry, solid-state electricity Solution matter is lithium lanthanum zirconium oxygen, Li-La-Ti oxygen, lithium aluminium silicon oxygen, any one in lithium aluminium titanium phosphorus oxygen；Solid electrolyte account for 90wt% ~ 99wt%, binder account for 1wt% ~ 10wt%；
5) secondary coating: being uniformly coated to step 3 gained base electrode of lithium cell on piece for above-mentioned solid electrolyte slurry, applies The thickness of cloth, that is, the spacing for scraping the edge of a knife to electrode slice are 10 μm ~ 100 μm；The shifting of the speed of coating, i.e. scraper relative to collector Dynamic speed is 1cm/s ~ 500cm/s；
6) secondary drying: by the first 1 ~ 2h of drying in 40 DEG C ~ 80 DEG C of drying box of the lithium battery electrode plate after secondary coating, then 6 ~ 12h is toasted in 100 DEG C ~ 150 DEG C of baking oven, obtains the lithium battery electrode plate with solid-state electrolyte layer.
2. a kind of lithium ion cell electrode piece coating method with solid-state electrolyte layer according to claim 1, feature Be: step (1) active material is tertiary cathode material, lithium-rich manganese-based anode material, LiFePO 4, cobalt acid lithium, manganese Sour lithium, nickel ion doped, lithium titanate, silicon-carbon cathode material, any one in graphite cathode material.
3. a kind of lithium ion cell electrode piece coating method with solid-state electrolyte layer according to claim 1, feature Be: step (1) conductive agent is super-p or acetylene black.
4. a kind of lithium ion cell electrode piece coating method with solid-state electrolyte layer according to claim 1, feature Be: binder is the nmp solution of PVDF in step (1), step (4), and wherein the concentration of PVDF is 5g/L ~ 100g/L.
5. according to claim 1 to the lithium ion battery battery for having solid-state electrolyte layer made from 4 any coating methods Pole piece.
CN201811158562.3A 2018-09-30 2018-09-30 A kind of lithium ion cell electrode piece and coating method with solid-state electrolyte layer Pending CN109273760A (en)

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN110465442A (en) * 2019-09-12 2019-11-19 邹娥贞 A kind of coating operations system manufactured for lithium battery
CN111370756A (en) * 2020-02-24 2020-07-03 青岛大学 High-voltage solid-state lithium battery and preparation method thereof
CN111668455A (en) * 2020-05-22 2020-09-15 宜春清陶能源科技有限公司 Method for reducing bubble amount in process of coating slurry on surface of battery pole piece and application of method in solid electrolyte coating
CN112018451A (en) * 2020-08-27 2020-12-01 北京科技大学 Flexible electrode electrolyte integrated structure for all-solid-state battery and preparation method
CN112909218A (en) * 2021-03-17 2021-06-04 昆山宝创新能源科技有限公司 Electrode plate, preparation method thereof and battery
CN113130983A (en) * 2019-12-30 2021-07-16 深圳新宙邦科技股份有限公司 Solid electrolyte and solid lithium ion battery
CN113690499A (en) * 2021-07-30 2021-11-23 东莞凯德新能源有限公司 Composite positive plate and lithium ion battery comprising same
CN113690498A (en) * 2021-07-30 2021-11-23 东莞凯德新能源有限公司 Composite negative plate and lithium ion battery comprising same
WO2022205032A1 (en) * 2021-03-31 2022-10-06 宁德新能源科技有限公司 Negative pole piece, electrochemical device, and electronic device

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CN103367712A (en) * 2013-07-26 2013-10-23 合肥国轩高科动力能源股份公司 Preparation method of lithium ion battery coating pole piece
CN105591105A (en) * 2016-03-16 2016-05-18 江苏乐能电池股份有限公司 Preparation method for coating surfaces of electrodes with solid electrolyte complex liquid
CN108172893A (en) * 2017-12-15 2018-06-15 浙江隆劲电池科技有限公司 A kind of lithium ion battery

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Publication number Priority date Publication date Assignee Title
CN103367712A (en) * 2013-07-26 2013-10-23 合肥国轩高科动力能源股份公司 Preparation method of lithium ion battery coating pole piece
CN105591105A (en) * 2016-03-16 2016-05-18 江苏乐能电池股份有限公司 Preparation method for coating surfaces of electrodes with solid electrolyte complex liquid
CN108172893A (en) * 2017-12-15 2018-06-15 浙江隆劲电池科技有限公司 A kind of lithium ion battery

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110465442A (en) * 2019-09-12 2019-11-19 邹娥贞 A kind of coating operations system manufactured for lithium battery
CN113130983A (en) * 2019-12-30 2021-07-16 深圳新宙邦科技股份有限公司 Solid electrolyte and solid lithium ion battery
CN113130983B (en) * 2019-12-30 2022-12-06 深圳新宙邦科技股份有限公司 Solid electrolyte and solid lithium ion battery
CN111370756A (en) * 2020-02-24 2020-07-03 青岛大学 High-voltage solid-state lithium battery and preparation method thereof
CN111668455A (en) * 2020-05-22 2020-09-15 宜春清陶能源科技有限公司 Method for reducing bubble amount in process of coating slurry on surface of battery pole piece and application of method in solid electrolyte coating
CN112018451A (en) * 2020-08-27 2020-12-01 北京科技大学 Flexible electrode electrolyte integrated structure for all-solid-state battery and preparation method
CN112909218A (en) * 2021-03-17 2021-06-04 昆山宝创新能源科技有限公司 Electrode plate, preparation method thereof and battery
WO2022205032A1 (en) * 2021-03-31 2022-10-06 宁德新能源科技有限公司 Negative pole piece, electrochemical device, and electronic device
CN113690499A (en) * 2021-07-30 2021-11-23 东莞凯德新能源有限公司 Composite positive plate and lithium ion battery comprising same
CN113690498A (en) * 2021-07-30 2021-11-23 东莞凯德新能源有限公司 Composite negative plate and lithium ion battery comprising same

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