CN107369810A - 一种负极集流体、其制备方法及其应用 - Google Patents

一种负极集流体、其制备方法及其应用 Download PDF

Info

Publication number
CN107369810A
CN107369810A CN201710619524.2A CN201710619524A CN107369810A CN 107369810 A CN107369810 A CN 107369810A CN 201710619524 A CN201710619524 A CN 201710619524A CN 107369810 A CN107369810 A CN 107369810A
Authority
CN
China
Prior art keywords
current collector
negative current
coating
copper
alloys
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.)
Granted
Application number
CN201710619524.2A
Other languages
English (en)
Other versions
CN107369810B (zh
Inventor
邱洪礼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Shenzhen Xin Chi Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Xin Chi Technology Co Ltd filed Critical Shenzhen Xin Chi Technology Co Ltd
Priority to US15/723,208 priority Critical patent/US20180301709A1/en
Priority to EP17196591.6A priority patent/EP3389122A1/en
Priority to KR1020170134685A priority patent/KR20180116096A/ko
Priority to JP2017208420A priority patent/JP2018181823A/ja
Publication of CN107369810A publication Critical patent/CN107369810A/zh
Application granted granted Critical
Publication of CN107369810B publication Critical patent/CN107369810B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/64Carriers or collectors
    • H01M4/66Selection of materials
    • H01M4/665Composites
    • H01M4/667Composites in the form of layers, e.g. coatings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/64Carriers or collectors
    • H01M4/66Selection of materials
    • H01M4/668Composites of electroconductive material and synthetic resins
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/02Pretreatment of the material to be coated
    • C23C14/021Cleaning or etching treatments
    • C23C14/022Cleaning or etching treatments by means of bombardment with energetic particles or radiation
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/02Pretreatment of the material to be coated
    • C23C14/024Deposition of sublayers, e.g. to promote adhesion of the coating
    • C23C14/025Metallic sublayers
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/08Oxides
    • C23C14/081Oxides of aluminium, magnesium or beryllium
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14Metallic material, boron or silicon
    • C23C14/18Metallic material, boron or silicon on other inorganic substrates
    • C23C14/185Metallic material, boron or silicon on other inorganic substrates by cathodic sputtering
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14Metallic material, boron or silicon
    • C23C14/20Metallic material, boron or silicon on organic substrates
    • C23C14/205Metallic material, boron or silicon on organic substrates by cathodic sputtering
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24Vacuum evaporation
    • C23C14/28Vacuum evaporation by wave energy or particle radiation
    • C23C14/30Vacuum evaporation by wave energy or particle radiation by electron bombardment
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34Sputtering
    • C23C14/3407Cathode assembly for sputtering apparatus, e.g. Target
    • C23C14/3414Metallurgical or chemical aspects of target preparation, e.g. casting, powder metallurgy
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34Sputtering
    • C23C14/35Sputtering by application of a magnetic field, e.g. magnetron sputtering
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/56Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
    • C23C14/562Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks for coating elongated substrates
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/56Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
    • C23C14/568Transferring the substrates through a series of coating stations
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • H01M10/0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/04Processes of manufacture in general
    • H01M4/0402Methods of deposition of the material
    • H01M4/0404Methods of deposition of the material by coating on electrode collectors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/04Processes of manufacture in general
    • H01M4/0402Methods of deposition of the material
    • H01M4/0421Methods of deposition of the material involving vapour deposition
    • H01M4/0423Physical vapour deposition
    • H01M4/0426Sputtering
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/64Carriers or collectors
    • H01M4/66Selection of materials
    • H01M4/661Metal or alloys, e.g. alloy coatings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/64Carriers or collectors
    • H01M4/66Selection of materials
    • H01M4/661Metal or alloys, e.g. alloy coatings
    • H01M4/662Alloys
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/64Carriers or collectors
    • H01M4/70Carriers or collectors characterised by shape or form
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00Nitrogen; Compounds thereof
    • C01B21/06Binary compounds of nitrogen with metals, with silicon, or with boron, or with carbon, i.e. nitrides; Compounds of nitrogen with more than one metal, silicon or boron
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/90Carbides
    • C01B32/914Carbides of single elements
    • C01B32/956Silicon carbide
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/04Monomers containing three or four carbon atoms
    • C08F10/06Propene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F14/00Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
    • C08F14/02Monomers containing chlorine
    • C08F14/04Monomers containing two carbon atoms
    • C08F14/06Vinyl chloride
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/052Li-accumulators
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M2004/026Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/028Positive electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/64Carriers or collectors
    • H01M4/66Selection of materials
    • H01M4/664Ceramic materials
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

本发明公开了一种负极集流体、其制备方法及其应用,负极集流体具有多层结构,包括塑料薄膜,在所述塑料薄膜的上、下表面依次镀有粘接力增强层、铜金属镀层和防氧化层。制备方法包括依次利用磁控溅射镀膜工艺在塑料薄膜上镀粘接力增强层,利用蒸发镀膜工艺镀铜,利用电子束蒸发或磁控溅射镀膜工艺镀防氧化层;该负极集流体的应用主要是在锂离子电池中的应用。本发明的负极集流体既能实现电池的轻量化,提高能量密度,降低成本,又能使镀铜层不容易脱落、不容易氧化。

Description

一种负极集流体、其制备方法及其应用
技术领域
本发明涉及一种负极集流体、其制备方法及其应用。
背景技术
传统锂离子电池负极集流体是铜箔。随着锂电技术的发展,锂离子电池的高能量密度、轻量化和柔性化成为人们的追求。减薄铜箔,可实现锂离子电池的轻量化,提高能量密度,降低成本。但由于制备技术的局限,铜箔的厚度很难再降低(目前铜箔可量产到6μm);另外铜箔变薄之后,机械强度降低,致使加工性能降低,因此需要新的“减薄技术”。
现有技术中有将铜镀在塑料(例如PET)上作为集流体来提高电池能量密度、降低成本、让电池轻量化。但其镀铜的最厚厚度达1.5μm(需要一定的厚度来达到令人满意的导电性),这相对于传统包装材料镀铜膜镀层厚度来说要厚很多,而镀层越厚,镀铜层越容易从塑料上脱落。
另外,铜箔的表面需要进行防氧化处理,因为铜箔直接与负极材料接触,时间长后,会被电解液腐蚀,从而降低锂离子电池的使用寿命。我们发现在塑料上直接镀铜后,再采用传统的防氧化方法容易致使铜镀层的脱落。
发明内容
有鉴于此,为克服上述技术问题,本发明的目的一方面在于提供一种既能实现电池的轻量化,提高能量密度,降低成本,又能使镀铜层不容易脱落、不容易氧化的负极集流体。
本发明的另一方面在于,提供一种负极集流体的制备方法。
本发明的第三方面在于,提供负极集流体的应用。
本发明提供的一种负极集流体,其具有多层结构,包括塑料薄膜,在所述塑料薄膜的上、下表面依次镀有粘接力增强层、铜金属镀层和防氧化层。
进一步地,所述塑料薄膜为OPP、PI、PET、CPP或PVC。
进一步地,所述塑料薄膜的厚度为2-12μm。
进一步地,所述粘接力增强层为金属镀膜或非金属镀膜,当为金属镀膜时,所述金属为Ni或镍合金;当为非金属镀膜时,所述非金属为SiC、Si3N4或Al2O3
进一步地,所述粘接力增强层为金属镀膜时,所述镍合金为NiCu合金、NiCr合金或NiV合金;以质量百分比计,当为NiCu合金时,由60%-80%的Ni和20%-40%的Cu组成;当为NiCr合金时,由10%-30%的Ni和70%-90%的Cr组成;当为NiV合金时,由80%-95%的Ni和5%-20%的V组成。
进一步地,所述粘接力增强层的厚度为10-100nm。
进一步地,所述铜金属镀层的厚度为100-1000nm。
进一步地,所述防氧化层是致密的金属层或非金属层,当为金属层时,所述金属为Ni或镍合金;当为非金属层时,所述非金属为Al2O3、Si3N4或SiC。
进一步地,所述防氧化层为金属层时,所述镍合金为NiCu合金、NiCr合金或NiV合金;以质量百分比计,当为NiCu合金时,由60%-80%的Ni和20%-40%的Cu组成;当为NiCr合金时,由10%-30%的Ni和70%-90%的Cr组成;当为NiV合金时,由80%-95%的Ni和5%-20%的V组成。
进一步地,所述防氧化层的厚度为10-100nm。
本发明提供的一种负极集流体的制备方法,包括如下步骤:
S1.首先对需要镀膜的塑料薄膜表面进行电晕处理,然后将卷筒塑料薄膜置入双面往返磁控溅射镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到3×10-3-6×10-3Pa,利用磁控溅射在塑料薄膜上双面往返高效镀膜,靶材为镍,纯度≥99.9%,调整好放卷速度、收卷速度,溅射的镍原子在移动的薄膜上形成一层镀镍层,即粘接力增强层;
S2.将S1得到的镀镍膜置入双面往返蒸发镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到5×10-3-8×10-3Pa,采用蒸发的方式将纯度≥99.9%的铜进行加热,调整好放卷速度、收卷速度和蒸发量,铜在蒸发机构中持续熔化、蒸发,在移动的薄膜表面形成一层镀铜层,即铜金属镀层;
S3.将S2得到的镀铜膜置入双面往返电子束蒸发镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到3×10-3-6×10-3Pa,采用电子枪加速电子轰击碰撞蒸镀原料Al2O3,调整好放卷速度、收卷速度和蒸发量,Al2O3吸热气化,在移动的薄膜表面形成一层Al2O3镀层,即防氧化层;
或者S3.将S2得到的镀铜膜置入双面往返磁控溅射镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到3×10-3-6×10-3Pa,利用磁控溅射在塑料薄膜上镀膜,靶材为镍,纯度≥99.9%,调整好放卷速度、收卷速度,溅射的镍原子在移动的薄膜表面形成一层镀镍层,即防氧化层。
本发明提供的负极集流体的应用主要是在电池中的应用,尤其是在锂离子电池中的应用。
本发明的有益效果在于,
(1)通过塑料薄膜层实现减重,其中镀铜膜集流体较传统铜箔集流体可实现减重70%,显著提高电池能量密度。
(2)塑料薄膜作为基底具有更强的拉伸强度,使得制备工序中的张力,压力等窗口会更大,从而备料段可采用更高的压力实现更大压实密度,提高过程制造能力;
(3)镀上一层粘接力增强层,可减少铜金属镀层的脱落,可有效防止铜金属镀层容易脱落导致集流体的性能丧失;
(4)用这种新的镀铜塑料膜集流体替代原有锂电池中的铜箔集流体,由传统的6μm的纯铜箔减少到不到1μm的镀铜层,铜的用量大大减少,集流体成本可下降50%以上。
(5)采用镀膜的方式得到的防氧化层,可解决塑料上铜镀层脱落的问题,同时达到防氧化的目的。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明的负极集流体的多层结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明优选的实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
参见图1所示,一种负极集流体,其具有多层结构,包括塑料薄膜1,在所述塑料薄膜1的上、下表面依次镀有粘接力增强层2、铜金属镀层3和防氧化层4。
通过塑料薄膜层实现减重,其中镀铜膜集流体较传统铜箔集流体可实现减重70%,显著提高电池能量密度。塑料薄膜优选为OPP、PI、PET、CPP或PVC。其中OPP为定向拉伸聚丙烯塑料;PI为聚酰亚胺塑料;PET为聚对苯二甲酸乙二醇酯塑料、CPP为流延聚丙烯塑料、PVC为聚氯乙烯塑料。进一步优选PET、PI、CPP;塑料薄膜的厚度优选为2-12μm,进一步优选为4-8μm。塑料薄膜的耐温性120-300℃。
镀上一层粘接力增强层,可减少铜金属镀层的脱落,可有效防止铜金属镀层容易脱落导致集流体的性能丧失。该粘接力增强层优选为金属镀膜或非金属镀膜,当为金属镀膜时,所述金属为Ni或镍合金;所述镍合金为NiCu合金、NiCr合金或NiV合金;以质量百分比计,当为NiCu合金时,由60%-80%的Ni和20%-40%的Cu组成;优选由60%的Ni和40%的Cu组成,或者由70%的Ni和30%的Cu组成,或者由80%的Ni和20%的Cu组成;当为NiCr合金时,由10%-30%的Ni和70%-90%的Cr组成;优选由10%的Ni和90%的Cr组成,或者由20%的Ni和80%的Cr组成,由30%的Ni和70%的Cr组成;当为NiV合金时,由80%-95%的Ni和5%-20%的V组成,优选由91%的Ni和9%的V组成,由93%的Ni和7%的V组成,由95%的Ni和5%的V组成。
粘接力增强层优选使用镍合金金属镀膜,这是由于锂电池在使用过程中,电解液发生化学反应会生成HF,而镍合金的效果在于随着储存时间的推移,锂电池的重量损失基本为0。而采用Ni金属镀膜,随着储存时间的推移,锂电池的重量损失在1500小时可高达20%。
当为非金属镀膜时,所述非金属为SiC、Si3N4或Al2O3,进一步优选为Al2O3。Ni或Al2O3与塑料薄膜层和铜金属镀层的粘接性能较好,这样镀铜层更不易脱落。粘接力增强层的厚度优选为10-100nm,进一步优选为10-50nm。
铜金属镀层的厚度可为100-1000nm,进一步优选为200-600nm;通过此镀铜塑料膜集流体替代原有锂电池中的铜箔集流体,由传统的6μm的纯铜箔减少到不到1μm的镀铜层,铜的用量大大减少,集流体成本可降低50%以上。
防氧化层的作用或目的是为了防止铜金属镀层被氧化。防氧化层可以是致密的金属层或非金属层,当为金属层时,所述金属为Ni或镍合金;所述镍合金为NiCu合金、NiCr合金或NiV合金;以质量百分比计,当为NiCu合金时,由60%-80%的Ni和20%-40%的Cu组成;优选由60%的Ni和40%的Cu组成,或者由70%的Ni和30%的Cu组成,或者由80%的Ni和20%的Cu组成;当为NiCr合金时,由10%-30%的Ni和70%-90%的Cr组成;优选由10%的Ni和90%的Cr组成,或者由20%的Ni和80%的Cr组成,由30%的Ni和70%的Cr组成;当为NiV合金时,由80%-95%的Ni和5%-20%的V组成,优选由91%的Ni和9%的V组成,由93%的Ni和7%的V组成,由95%的Ni和5%的V组成。
防氧化层和粘接力增强层一样优选使用镍合金金属镀膜,这是由于锂电池在使用过程中,电解液发生化学反应会生成HF,而镍合金的效果在于随着储存时间的推移,锂电池的重量损失基本为0。防氧化层和粘接力增强层均采用镍合金金属镀膜,更进一步保证该效果。而采用Ni金属镀膜,随着储存时间的推移,锂电池的重量损失在1500小时可高达20%。
当为非金属层时,所述非金属为Al2O3、Si3N4或SiC,进一步优选为Al2O3。当采用镀膜的方式得到的防氧化层,可解决塑料上铜镀层脱落的问题,同时达到防氧化的目的。防氧化层的厚度可为10-100nm,可进一步优选为10-50nm。
下面通过具体实施例来进一步说明。
实施例1
一种负极集流体的制备方法,包括如下步骤:
S1.首先对需要镀膜的塑料薄膜表面进行电晕处理,然后将卷筒塑料薄膜置入双面往返磁控溅射镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到3×10-3-6×10-3Pa,利用磁控溅射在塑料薄膜上双面往返高效镀膜,靶材为镍,纯度≥99.9%,调整好放卷速度、收卷速度,溅射的镍原子在移动的薄膜上形成一层镀镍层,即粘接力增强层;
S2.将S1得到的镀镍膜置入双面往返蒸发镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到5×10-3-8×10-3Pa,采用蒸发的方式将纯度≥99.9%的铜进行加热,调整好放卷速度、收卷速度和蒸发量,铜在蒸发机构中持续熔化、蒸发,在移动的薄膜表面形成一层镀铜层,即铜金属镀层;
S3.将S2得到的镀铜膜置入双面往返电子束蒸发镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到3×10-3-6×10-3Pa,采用电子枪加速电子轰击碰撞蒸镀原料Al2O3,调整好放卷速度、收卷速度和蒸发量,Al2O3吸热气化,在移动的薄膜表面形成一层Al2O3镀层,即防氧化层;
从而得到具有多层结构的负极集流体。
实施例2
一种负极集流体的制备方法,包括如下步骤:
S1.首先对需要镀膜的塑料薄膜表面进行电晕处理,然后将卷筒塑料薄膜置入双面往返磁控溅射镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到3×10-3-6×10-3Pa,利用磁控溅射在塑料薄膜上双面往返高效镀膜,靶材为镍,纯度≥99.9%,调整好放卷速度、收卷速度,溅射的镍原子在移动的薄膜上形成一层镀镍层,即粘接力增强层;
S2.将S1得到的镀镍膜置入双面往返蒸发镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到5×10-3-8×10-3Pa,采用蒸发的方式将纯度为≥99.9%的铜进行加热,调整好放卷速度、收卷速度和蒸发量,铜在蒸发机构中持续熔化、蒸发,在移动的薄膜表面形成一层镀铜层,即铜金属镀层;
S3.将S2得到的镀铜膜置入双面往返磁控溅射镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到3×10-3-6×10-3Pa,利用磁控溅射在塑料薄膜上镀膜,靶材为镍,纯度≥99.9%,调整好放卷速度、收卷速度,溅射的镍原子在移动的薄膜表面形成一层镀镍层,即防氧化层。
从而得到具有多层结构的负极集流体。
将实施例1与实施例2得到的负极集流体用于锂离子电池中,其最基本的功能是汇集电流,同时作为载体来存放负极材料,即将负极材料(电池活性物质)产生的电流汇集起来以便形成较大的电流对外输出。
将实施例1与实施例2得到的负极集流体进行测试,测试结果可得到如下结论:
(1)通过塑料薄膜层实现减重,其中镀铜膜集流体较传统铜箔集流体可实现减重70%,显著提高能量密度;
(2)塑料薄膜作为基底具有更强的拉伸强度,使得制备工序中的张力,压力等窗口会更大,从而备料段可采用更高的压力实现更大压实密度,提高过程制造能力;
(3)镀上一层粘接力增强层,可减少铜金属镀层的脱落,可有效防止铜金属镀层容易脱落导致集流体的性能丧失;
(4)用这种新的铜集流体替代原有锂电池中的铜箔集流体,由传统的6μm的纯铜箔减少到不到1μm的镀铜层,铜的用量大大减少,集流体成本可降低50%以上。
(5)采用镀膜的方式得到的防氧化层,可解决塑料上铜镀层脱落的问题,同时达到防氧化的目的。
上文所列出的一系列的详细说明仅仅是针对本发明的可行性实施例的具体说明,它们并非用以限制本发明的保护范围,凡未脱离本发明技艺精神所作的等效实施例或变更均应包含在本发明的保护范围之内。

Claims (12)

1.一种负极集流体,其特征在于,其具有多层结构,包括塑料薄膜,在所述塑料薄膜的上、下表面依次镀有粘接力增强层、铜金属镀层和防氧化层。
2.根据权利要求1所述的负极集流体,其特征在于,所述塑料薄膜为OPP、PI、PET、CPP或PVC。
3.根据权利要求1所述的负极集流体,其特征在于,所述塑料薄膜的厚度为2-12μm。
4.根据权利要求1所述的负极集流体,其特征在于,所述粘接力增强层为金属镀膜或非金属镀膜,当为金属镀膜时,所述金属为Ni或镍合金;当为非金属镀膜时,所述非金属为SiC、Si3N4或Al2O3
5.根据权利要求4所述的负极集流体,其特征在于,所述镍合金为NiCu合金、NiCr合金或NiV合金;以质量百分比计,当为NiCu合金时,由60%-80%的Ni和20%-40%的Cu组成;当为NiCr合金时,由10%-30%的Ni和70%-90%的Cr组成;当为NiV合金时,由80%-95%的Ni和5%-20%的V组成。
6.根据权利要求1所述的负极集流体,其特征在于,所述粘接力增强层的厚度为10-100nm。
7.根据权利要求1所述的负极集流体,其特征在于,所述铜金属镀层的厚度为100-1000nm。
8.根据权利要求1所述的负极集流体,其特征在于,所述防氧化层是致密的金属层或非金属层,当为金属层时,所述金属为Ni或镍合金;当为非金属层时,所述非金属为Al2O3、Si3N4或SiC。
9.根据权利要求8所述的负极集流体,其特征在于,所述镍合金为NiCu合金、NiCr合金或NiV合金;以质量百分比计,当为NiCu合金时,由60%-80%的Ni和20%-40%的Cu组成;当为NiCr合金时,由10%-30%的Ni和70%-90%的Cr组成;当为NiV合金时,由80%-95%的Ni和5%-20%的V组成。
10.根据权利要求1所述的负极集流体,其特征在于,所述防氧化层的厚度为10-100nm。
11.一种权利要求1所述的负极集流体的制备方法,其特征在于,包括如下步骤:
S1.首先对需要镀膜的塑料薄膜表面进行电晕处理,然后将卷筒塑料薄膜置入双面往返磁控溅射镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到3×10-3-6×10-3Pa,利用磁控溅射在塑料薄膜上双面往返高效镀膜,靶材为镍,纯度≥99.9%,调整好放卷速度、收卷速度,溅射的镍原子在移动的薄膜上形成一层镀镍层,即粘接力增强层;
S2.将S1得到的镀镍膜置入双面往返蒸发镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到5×10-3-8×10-3Pa,采用蒸发的方式对纯度≥99.9%的铜进行加热,调整好放卷速度、收卷速度和蒸发量,铜在蒸发机构中持续熔化、蒸发,在移动的薄膜表面形成一层镀铜层,即铜金属镀层;
S3.将S2得到的镀铜膜置入双面往返电子束蒸发镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到3×10-3-6×10-3Pa,采用电子枪加速电子轰击碰撞蒸镀原料Al2O3,调整好放卷速度、收卷速度和蒸发量,Al2O3吸热气化,在移动的薄膜表面形成一层Al2O3镀层,即防氧化层;
或者S3.将S2得到的镀铜膜置入双面往返磁控溅射镀膜机真空室内,将真空室密封,逐级抽真空至真空度达到3×10-3-6×10-3Pa,利用磁控溅射在塑料薄膜上镀膜,靶材为镍,纯度≥99.9%,调整好放卷速度、收卷速度,溅射的镍原子在移动的薄膜表面形成一层镀镍层,即防氧化层。
12.权利要求1-10所述的负极集流体在电池中的应用。
CN201710619524.2A 2017-04-14 2017-07-26 一种负极集流体、其制备方法及其应用 Active CN107369810B (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US15/723,208 US20180301709A1 (en) 2017-04-14 2017-10-03 Cathode current collector, method of preparing the cathode current collector, and battery with the cathode current collector
EP17196591.6A EP3389122A1 (en) 2017-04-14 2017-10-16 Cathode current collector, method of preparing the cathode current collector, and battery with the cathode current collector
KR1020170134685A KR20180116096A (ko) 2017-04-14 2017-10-17 부극 집전체, 그의 제조방법 및 그의 응용
JP2017208420A JP2018181823A (ja) 2017-04-14 2017-10-27 負極集電体、その製造方法及びその応用

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2017102436589 2017-04-14
CN201710243658.9A CN106981665A (zh) 2017-04-14 2017-04-14 一种负极集流体、其制备方法及其应用

Publications (2)

Publication Number Publication Date
CN107369810A true CN107369810A (zh) 2017-11-21
CN107369810B CN107369810B (zh) 2020-12-11

Family

ID=59344152

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201710243658.9A Pending CN106981665A (zh) 2017-04-14 2017-04-14 一种负极集流体、其制备方法及其应用
CN201710619524.2A Active CN107369810B (zh) 2017-04-14 2017-07-26 一种负极集流体、其制备方法及其应用

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201710243658.9A Pending CN106981665A (zh) 2017-04-14 2017-04-14 一种负极集流体、其制备方法及其应用

Country Status (5)

Country Link
US (1) US20180301709A1 (zh)
EP (1) EP3389122A1 (zh)
JP (1) JP2018181823A (zh)
KR (1) KR20180116096A (zh)
CN (2) CN106981665A (zh)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108390068A (zh) * 2018-02-09 2018-08-10 合肥国轩高科动力能源有限公司 一种双极性集流体及其制备方法
CN108531876A (zh) * 2018-03-26 2018-09-14 安徽金美新材料科技有限公司 一种用于锂电池集流体的镀膜工艺流程
US20190173090A1 (en) * 2017-12-05 2019-06-06 Contemporary Amperex Technology Co., Limited Current collector, electrode plate including the same and electrochemical device
CN109873166A (zh) * 2017-12-05 2019-06-11 宁德时代新能源科技股份有限公司 一种集流体,其极片和电化学装置
JP2019102427A (ja) * 2017-12-05 2019-06-24 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited 集電体、その極シート及び電池
JP2019102426A (ja) * 2017-12-05 2019-06-24 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited 集電体、その極シート及び電池
JP2019102425A (ja) * 2017-12-05 2019-06-24 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited 集電体、その極シート、電池及びその応用
CN110277532A (zh) * 2018-03-15 2019-09-24 宁德时代新能源科技股份有限公司 二次电池集流体的加工方法及加工设备
JP2020057585A (ja) * 2018-09-30 2020-04-09 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited 集電体、極シート及び電気化学デバイス
WO2020093375A1 (zh) * 2018-11-09 2020-05-14 深圳市元子科技有限公司 膜及制备工艺
US10658673B2 (en) 2017-12-05 2020-05-19 Contemporary Amperex Technology Co., Limited Battery
US10749184B2 (en) 2017-12-05 2020-08-18 Contemporary Amperex Technology Co., Limited Battery
CN112126373A (zh) * 2020-09-30 2020-12-25 浙江长宇新材料有限公司 一种增强型粘性功能基材及其制备方法
CN112164538A (zh) * 2020-09-30 2021-01-01 浙江长宇新材料有限公司 一种轻质、安全的导电薄膜及其制备方法
CN112615010A (zh) * 2020-12-17 2021-04-06 联动天翼新能源有限公司 一种用于电池的新型集流体及其制备方法
CN113488660A (zh) * 2021-07-08 2021-10-08 江西柔顺科技有限公司 一种负极集流体的制备方法及电池负极的制备方法
CN114430044A (zh) * 2020-10-29 2022-05-03 厦门海辰新材料科技有限公司 一种双极性集流体及其制备方法、电池
WO2022155938A1 (zh) * 2021-01-23 2022-07-28 宁德新能源科技有限公司 复合集流体、应用所述复合集流体的电池和电子装置
CN116031412A (zh) * 2023-02-27 2023-04-28 华中科技大学 一种记忆性复合集流体及其制备方法

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110660998B (zh) 2018-09-17 2020-12-04 宁德时代新能源科技股份有限公司 集流体、电极极片及电化学装置
CN110661000B (zh) * 2018-09-30 2020-11-27 宁德时代新能源科技股份有限公司 一种集流体,极片和电化学装置
CN209183628U (zh) * 2018-10-11 2019-07-30 宁德时代新能源科技股份有限公司 二次电池及其极片
JP7378838B2 (ja) * 2018-11-09 2023-11-14 星耀科技(深▲せん▼)有限公司 エネルギー貯蔵素子の集電体及びエネルギー貯蔵素子の集電体の製造方法
CN110661002B (zh) 2018-12-29 2021-06-29 宁德时代新能源科技股份有限公司 一种电极极片和电化学装置
CN110661003B (zh) * 2018-12-29 2021-06-29 宁德时代新能源科技股份有限公司 一种电极极片和电化学装置
CN110676460B (zh) * 2018-12-29 2022-01-18 宁德时代新能源科技股份有限公司 一种电极极片和电化学装置
CN111710819A (zh) * 2019-03-18 2020-09-25 宁德新能源科技有限公司 极片、电芯以及电池
CN110943201B (zh) * 2019-04-15 2021-02-26 宁德时代新能源科技股份有限公司 一种正极极片和电化学装置
CN110943225B (zh) * 2019-04-28 2020-11-24 宁德时代新能源科技股份有限公司 正极集流体、正极极片及电化学装置
CN112349910B (zh) * 2019-04-28 2022-03-08 宁德时代新能源科技股份有限公司 负极集流体、负极极片、电化学装置、电动汽车及消费类电子产品
JP2020187932A (ja) * 2019-05-15 2020-11-19 株式会社アルバック リチウムイオン二次電池用負極の集電体の製造方法
JP2020187929A (ja) * 2019-05-15 2020-11-19 株式会社アルバック リチウムイオン二次電池用負極の集電体
CN111180735B (zh) * 2019-05-31 2021-05-07 宁德时代新能源科技股份有限公司 负极集流体、负极极片及电化学装置
CN110943215B (zh) * 2019-05-31 2020-12-04 宁德时代新能源科技股份有限公司 锂离子二次电池
CN111180737B (zh) * 2019-05-31 2021-08-03 宁德时代新能源科技股份有限公司 锂离子二次电池、电芯及负极极片
CN112186192A (zh) * 2019-07-01 2021-01-05 宁德时代新能源科技股份有限公司 负极集流体、负极极片及电化学装置
CN110867537A (zh) * 2019-11-26 2020-03-06 浙江长宇新材料有限公司 一种电池用镀金属膜的一次蒸镀制备方法
CN111276701B (zh) * 2020-03-11 2021-06-08 荆门市诺维英新材料科技有限公司 一种集流体及含有该集流体的锂离子电池
WO2021190101A1 (zh) * 2020-03-27 2021-09-30 深圳市海瀚新能源技术有限公司 导电膜及其制备工艺、极片和电池
CN114023971A (zh) * 2020-03-27 2022-02-08 深圳市海瀚新能源技术有限公司 导电膜及其制备工艺、极片和电池
WO2021208542A1 (zh) * 2020-04-13 2021-10-21 深圳市海鸿新能源技术有限公司 导电膜及极片
CN114023972A (zh) * 2020-04-13 2022-02-08 深圳市海鸿新能源技术有限公司 导电膜及极片
CN111740044A (zh) * 2020-07-09 2020-10-02 夏笔文 一种复合箔及其生产工艺
CN114075652B (zh) * 2020-08-22 2024-01-12 昆山鑫美源电子科技有限公司 一种导电薄膜的制备方法、电流汇集传输材料及能量储存装置
CN114075653B (zh) * 2020-08-22 2023-06-23 昆山鑫美源电子科技有限公司 导电薄膜、导电薄膜的制备方法、电流汇集传输材料以及能量存储装置
CN114075654B (zh) * 2020-08-22 2023-03-17 昆山鑫美源电子科技有限公司 导电薄膜的制备方法、电流汇集传输材料以及能量储存装置
CN112151806A (zh) * 2020-09-15 2020-12-29 浙江长宇新材料有限公司 一种超轻多层复合集流体及其制备方法
CN112133883B (zh) * 2020-09-24 2022-09-06 湖南省凯纳方科技有限公司 一种多孔结构锂电池负极电极及制备方法
CN112117029B (zh) * 2020-09-30 2022-08-09 浙江长宇新材料股份有限公司 一种复合导电膜及其制备方法
CN112786895A (zh) * 2021-01-22 2021-05-11 华中科技大学 一种锂离子电池、新型集流体及其制备方法
CN113088887A (zh) * 2021-04-16 2021-07-09 潍坊坤祥包装材料有限公司 一种镀银薄膜的生产工艺
CN115241463A (zh) * 2021-04-22 2022-10-25 沈晞 一种集流体及石墨阳极双极锂离子电池
CN113745525A (zh) * 2021-06-16 2021-12-03 浙江柔震科技有限公司 一种柔性复合塑料薄膜及其制备与测试方法
JP7123221B1 (ja) 2021-06-18 2022-08-22 ソフトバンク株式会社 製造方法、プログラム、製造システム、積層集電体、電池、移動体、及び飛行体
CN114243028A (zh) * 2021-11-15 2022-03-25 浙江柔震科技有限公司 一种集流体及其制备方法
CN114196929A (zh) * 2021-12-09 2022-03-18 无锡爱尔华光电科技有限公司 一种锂离子电池集电极膜的加工方法
CN114628688A (zh) * 2022-04-19 2022-06-14 江西光腾微纳材料有限公司 一种复合铜材料的制备工艺
CN114725394A (zh) * 2022-04-20 2022-07-08 江阴纳力新材料科技有限公司 富电子负极集流体及其制备方法、电极极片和电池
CN115181946A (zh) * 2022-06-13 2022-10-14 苏州胜利精密制造科技股份有限公司 一种导电铜薄膜材料的制备方法
CN115036514A (zh) * 2022-06-29 2022-09-09 扬州纳力新材料科技有限公司 复合集流体的制备方法及复合集流体
CN115084789B (zh) 2022-07-26 2023-05-12 常州欣盛半导体技术股份有限公司 复合集流体及其制备方法、电池
CN117438589A (zh) * 2022-12-23 2024-01-23 安迈特科技(北京)有限公司 负极集流体及其制备方法和锂离子电池
CN116333545A (zh) * 2023-03-22 2023-06-27 江苏铭丰电子材料科技有限公司 一种锂离子电池电解铜箔防氧化液及其制备方法
CN117577855A (zh) * 2024-01-17 2024-02-20 苏州可川电子科技股份有限公司 一种低方阻复合集流体及其制备方法与应用

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060019168A1 (en) * 2004-03-16 2006-01-26 Wen Li Corrosion protection using protected electron collector
TW200606282A (en) * 2004-06-10 2006-02-16 Mitsui Mining & Smelting Co Metal foil with carrier foil, manufacturing method of the same, and collector of nonaqueous electrolyte secondary battery using the same
CN101108546A (zh) * 2007-08-30 2008-01-23 山东天诺光电材料有限公司 柔性材料及其制备方法和用途
CN102290578A (zh) * 2011-08-04 2011-12-21 中国第一汽车股份有限公司 一种柔软型集流体及用此集流体制作的锂电池
JP2013026041A (ja) * 2011-07-21 2013-02-04 Kobe Steel Ltd リチウムイオン二次電池用正極集電体、リチウムイオン二次電池用正極およびリチウムイオン二次電池用正極集電体の製造方法
CN103647085A (zh) * 2013-12-19 2014-03-19 山东精工电子科技有限公司 锂离子电池负极集流体材料及制备方法
CN103668094A (zh) * 2013-12-05 2014-03-26 江苏科技大学 一种采用溅射法制备五层柔性无胶双面覆铜箔的方法
CN204659076U (zh) * 2015-01-30 2015-09-23 四川亚力超膜科技有限公司 一种柔性基底镀铜膜结构

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2051611C (fr) * 1991-09-17 1996-01-23 Michel Gauthier Procede de preparation d'ensembles collecteurs-electrodes pour generateurs de films minces, ensembles collecteurs- electrodes et generateurs obtenus
JPH07192767A (ja) * 1993-12-27 1995-07-28 Sanyo Electric Co Ltd 非水電解質二次電池
US6171714B1 (en) * 1996-04-18 2001-01-09 Gould Electronics Inc. Adhesiveless flexible laminate and process for making adhesiveless flexible laminate
JPH10112323A (ja) * 1996-10-07 1998-04-28 Japan Storage Battery Co Ltd 電 池
JPH1197030A (ja) * 1997-09-18 1999-04-09 Hitachi Cable Ltd 集電材用銅箔
JPH11102711A (ja) * 1997-09-25 1999-04-13 Denso Corp リチウムイオン二次電池
JP2001313037A (ja) * 2000-04-28 2001-11-09 Sony Corp 負極及び非水電解質電池、並びにそれらの製造方法
JP2003282064A (ja) * 2002-03-20 2003-10-03 Toyo Kohan Co Ltd 複合集電体
US6933077B2 (en) * 2002-12-27 2005-08-23 Avestor Limited Partnership Current collector for polymer electrochemical cells and electrochemical generators thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060019168A1 (en) * 2004-03-16 2006-01-26 Wen Li Corrosion protection using protected electron collector
TW200606282A (en) * 2004-06-10 2006-02-16 Mitsui Mining & Smelting Co Metal foil with carrier foil, manufacturing method of the same, and collector of nonaqueous electrolyte secondary battery using the same
CN101108546A (zh) * 2007-08-30 2008-01-23 山东天诺光电材料有限公司 柔性材料及其制备方法和用途
JP2013026041A (ja) * 2011-07-21 2013-02-04 Kobe Steel Ltd リチウムイオン二次電池用正極集電体、リチウムイオン二次電池用正極およびリチウムイオン二次電池用正極集電体の製造方法
CN102290578A (zh) * 2011-08-04 2011-12-21 中国第一汽车股份有限公司 一种柔软型集流体及用此集流体制作的锂电池
CN103668094A (zh) * 2013-12-05 2014-03-26 江苏科技大学 一种采用溅射法制备五层柔性无胶双面覆铜箔的方法
CN103647085A (zh) * 2013-12-19 2014-03-19 山东精工电子科技有限公司 锂离子电池负极集流体材料及制备方法
CN204659076U (zh) * 2015-01-30 2015-09-23 四川亚力超膜科技有限公司 一种柔性基底镀铜膜结构

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10714757B2 (en) 2017-12-05 2020-07-14 Contemporary Amperex Technology Co., Limited Current collector, electrode plate including the same and battery
US11024854B2 (en) 2017-12-05 2021-06-01 Contemporary Amperex Technology Co., Limited Current collector, electrode plate of the same and battery
US10749184B2 (en) 2017-12-05 2020-08-18 Contemporary Amperex Technology Co., Limited Battery
CN109873166A (zh) * 2017-12-05 2019-06-11 宁德时代新能源科技股份有限公司 一种集流体,其极片和电化学装置
WO2019109928A1 (zh) * 2017-12-05 2019-06-13 宁德时代新能源科技股份有限公司 一种集流体,其极片和电化学装置
JP2019102427A (ja) * 2017-12-05 2019-06-24 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited 集電体、その極シート及び電池
JP2019102426A (ja) * 2017-12-05 2019-06-24 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited 集電体、その極シート及び電池
JP2019102425A (ja) * 2017-12-05 2019-06-24 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited 集電体、その極シート、電池及びその応用
JP2019102429A (ja) * 2017-12-05 2019-06-24 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited 集電体、その極シート及び電気化学デバイス
JP7169269B2 (ja) 2017-12-05 2022-11-10 寧徳時代新能源科技股▲分▼有限公司 集電体、その極シートと電気化学デバイス
JP2020503639A (ja) * 2017-12-05 2020-01-30 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited 集電体、その極シートと電気化学デバイス
US11177479B2 (en) 2017-12-05 2021-11-16 Contemporary Amperex Technology Co., Ltd. Current collector, electrode plate including the same and electrochemical device
US10763513B2 (en) 2017-12-05 2020-09-01 Contemporary Amperex Technology Co., Limited Current collector, electrode plate including the same and battery
US10658673B2 (en) 2017-12-05 2020-05-19 Contemporary Amperex Technology Co., Limited Battery
US20190173090A1 (en) * 2017-12-05 2019-06-06 Contemporary Amperex Technology Co., Limited Current collector, electrode plate including the same and electrochemical device
US10910652B2 (en) 2017-12-05 2021-02-02 Contemporary Amperex Technology Co., Limited Current collector, electrode plate including the same and electrochemical device
CN108390068A (zh) * 2018-02-09 2018-08-10 合肥国轩高科动力能源有限公司 一种双极性集流体及其制备方法
CN110277532A (zh) * 2018-03-15 2019-09-24 宁德时代新能源科技股份有限公司 二次电池集流体的加工方法及加工设备
CN108531876A (zh) * 2018-03-26 2018-09-14 安徽金美新材料科技有限公司 一种用于锂电池集流体的镀膜工艺流程
US11005105B2 (en) 2018-09-30 2021-05-11 Contemporary Amperex Technology Co., Limited Current collector, electrode plate and electrochemical device
JP2020057585A (ja) * 2018-09-30 2020-04-09 寧徳時代新能源科技股▲分▼有限公司Contemporary Amperex Technology Co., Limited 集電体、極シート及び電気化学デバイス
WO2020093375A1 (zh) * 2018-11-09 2020-05-14 深圳市元子科技有限公司 膜及制备工艺
US11962016B2 (en) 2018-11-09 2024-04-16 Shenzhen Yuanzi Technology Co., Ltd. Film and preparation process
CN112126373A (zh) * 2020-09-30 2020-12-25 浙江长宇新材料有限公司 一种增强型粘性功能基材及其制备方法
CN112164538A (zh) * 2020-09-30 2021-01-01 浙江长宇新材料有限公司 一种轻质、安全的导电薄膜及其制备方法
CN114430044A (zh) * 2020-10-29 2022-05-03 厦门海辰新材料科技有限公司 一种双极性集流体及其制备方法、电池
CN114430044B (zh) * 2020-10-29 2023-04-25 厦门海辰新材料科技有限公司 一种双极性集流体及其制备方法、电池
CN112615010A (zh) * 2020-12-17 2021-04-06 联动天翼新能源有限公司 一种用于电池的新型集流体及其制备方法
WO2022155938A1 (zh) * 2021-01-23 2022-07-28 宁德新能源科技有限公司 复合集流体、应用所述复合集流体的电池和电子装置
CN113488660A (zh) * 2021-07-08 2021-10-08 江西柔顺科技有限公司 一种负极集流体的制备方法及电池负极的制备方法
CN116031412A (zh) * 2023-02-27 2023-04-28 华中科技大学 一种记忆性复合集流体及其制备方法

Also Published As

Publication number Publication date
KR20180116096A (ko) 2018-10-24
EP3389122A1 (en) 2018-10-17
US20180301709A1 (en) 2018-10-18
CN107369810B (zh) 2020-12-11
CN106981665A (zh) 2017-07-25
JP2018181823A (ja) 2018-11-15

Similar Documents

Publication Publication Date Title
CN107369810A (zh) 一种负极集流体、其制备方法及其应用
CN107154499A (zh) 一种含有新型集流体的锂电池及其制备方法
CN107123812A (zh) 一种正极集流体、其制备方法及其应用
JP2020503639A (ja) 集電体、その極シートと電気化学デバイス
US8507133B2 (en) Anode active material, anode, and lithium secondary battery
JP3913490B2 (ja) リチウム二次電池用電極の製造方法
JP2019102429A (ja) 集電体、その極シート及び電気化学デバイス
CN207097950U (zh) 一种含有新型集流体的锂电池
JP4850405B2 (ja) リチウムイオン二次電池及びその製造方法
CN107895799A (zh) 具有均匀厚度的铜箔及其制造方法
TW201213620A (en) Electrolytic copper foil, electrolytic copper foil for lithium-ion secondary battery, electrode for lithium-ion secondary battery using the electrolytic copper foil, and lithium-ion secondary battery using the electrode
CN111613773B (zh) 一种分级结构玻璃纤维与金属锂的复合物及其制备方法
CN102290595A (zh) 一种全固态高循环寿命薄膜锂电池及其制作方法
US11158849B2 (en) Lithium ion battery including nano-crystalline graphene electrode
JP4054868B2 (ja) リチウム電池用負極及び該リチウム電池用負極の製造方法
CN114759192A (zh) 层状复合导电材料、制备工艺及集流体
JP2023513815A (ja) 陽極片、当該極片を採用した電池及び電子装置
CN109088070B (zh) 锂离子电池及其制备方法
WO2024131866A1 (zh) 负极集流体及其制备方法和锂离子电池
CN112310367A (zh) 一种锂电池电极用超薄多孔金属材料及其制备方法与应用
CN108899470A (zh) 一种Li-S电池正极片夹层结构及其制备方法
WO2021136551A1 (zh) 一种二次电池、其极片及极片的制备方法
CN115528202A (zh) 一种复合集流体及其制备方法、电极极片、电池
WO2021170909A1 (en) A coated, printed battery and a method of manufacturing the same
CN111710831A (zh) 一种固态电池负极箔及其生产工艺

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right
TA01 Transfer of patent application right

Effective date of registration: 20181116

Address after: 352100 Xingang Road, Zhangwan Town, Jiaocheng District, Ningde, Fujian 2

Applicant after: Contemporary Amperex Technology Co.,Ltd.

Address before: 518000 West Block 611A, 202 Tairan Industrial Park, Shatou Street, Futian District, Shenzhen City, Guangdong Province

Applicant before: SHENZHEN XINZHIMEI TECHNOLOGY CO.,LTD.

GR01 Patent grant
GR01 Patent grant