SE2351024A1 - Electrode comprising binder with organic fluorescent tag - Google Patents

Electrode comprising binder with organic fluorescent tag

Info

Publication number
SE2351024A1
SE2351024A1 SE2351024A SE2351024A SE2351024A1 SE 2351024 A1 SE2351024 A1 SE 2351024A1 SE 2351024 A SE2351024 A SE 2351024A SE 2351024 A SE2351024 A SE 2351024A SE 2351024 A1 SE2351024 A1 SE 2351024A1
Authority
SE
Sweden
Prior art keywords
binder
slurry
tagged
electrode
optionally
Prior art date
Application number
SE2351024A
Other versions
SE547722C2 (en
Inventor
Andrew Pohlman
Original Assignee
Northvolt Ab
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 Northvolt Ab filed Critical Northvolt Ab
Priority to SE2351024A priority Critical patent/SE547722C2/en
Priority to EP24197565.5A priority patent/EP4516814A1/en
Publication of SE2351024A1 publication Critical patent/SE2351024A1/en
Publication of SE547722C2 publication Critical patent/SE547722C2/en

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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
    • C08C19/00—Chemical modification of rubber
    • C08C19/28—Reaction with compounds containing carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent materials, e.g. electroluminescent or chemiluminescent
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent materials, e.g. electroluminescent or chemiluminescent
    • C09K11/06—Luminescent materials, e.g. electroluminescent or chemiluminescent containing organic luminescent materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
    • G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
    • 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
    • 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
    • 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
    • H01M4/0473—Filling tube-or pockets type electrodes; Applying active mass in cup-shaped terminals
    • H01M4/0478—Filling tube-or pockets type electrodes; Applying active mass in cup-shaped terminals with dispersions, suspensions or pastes
    • 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
    • H01M4/049—Manufacturing of an active layer by chemical means
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H01M4/622—Binders being polymers
    • 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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H01M4/622—Binders being polymers
    • H01M4/623—Binders being polymers fluorinated polymers
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Dispersion Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

This disclosure provides a slurry for forming an electrode comprising a tagged binder. The tagged binder comprises a polymer which is bound to an organic fluorescent tag, which introduces a fluorescent moiety to the binder. During or after battery fabrication, said fluorescent moiety allows for easy visualization of binder migration within the electrode.

Claims (11)

Claims
1. A slurry for forming an electrode comprising dispersing medium, electrode active material, tagged binder, and optionally conductive additives; wherein the tagged binder comprises a polymer bound to an organic fluorescent tag.
2. . The slurry of claim 1, wherein the organic fluorescent tag comprises a coupling moiety, a linker moiety and a fluorescent moiety.
3. . The slurry of any of the preceding claims, wherein the organic fluorescent tag is bound to the polymer as a cycloaddition adduct formed from the coupling moiety.
4. . The slurry of any of the preceding claims, wherein the cycloaddition is an inverse electron demand Diels Alder reaction.
5. . The slurry of any of the preceding claims, wherein the slurry further comprises untagged binder.
6. . The slurry of any of the preceding claims, wherein the slurry comprises at least 95wt% tagged binder based on the total amount of binder.
7. . The slurry of claims 1 to 5, wherein the slurry comprises a maximum of 1wt% tagged binder based on the total amount of binder.
8. . A method of forming a slurry comprising the steps of a. providing a dispersing medium, electrode active material, a binder comprising a polymer, organic fluorescent tag, and optionally conductive additives; b. coupling the organic fluorescent tag to the polymer to form a tagged binder; and c. optionally, adding untagged binder.
9. A method of forming a slurry comprising the steps of i. providing a mixture comprising a solvent, a binder comprising a polymer and organic fluorescent tag; ii. coupling the organic fluorescent tag to the polymer to form a mixture comprising tagged binder;iii. providing dispersion medium, electrode active material, optionally conductive additive, and optionally untagged binder; and iv.forming a slurry from the mixture comprising tagged binder; dispersion medium, electrode active material, optional conductive additive, and optional untagged binder.
10. The method of claim 9, wherein step iv. comprises forming a dispersion comprising tagged binder and untagged binder; and forming a slurry from the dispersion comprising tagged binder and untagged binder; electroactive material, and optional conductive additive. 11.The methods of claim 8-10, wherein the organic fluorescent tag comprises a coupling moiety, a linker moiety and a fluorescent moiety, and wherein the organic fluorescent tag is bound to the polymer as a cycloaddition adduct formed from the coupling moiety. 12.The methods of any of claims 8 to 11, wherein the fluorescence emission of any unreacted organic fluorescent tag does not interfere with the fluorescence emission of the bound organic fluorescent tag to a significant extent. 13.A method for forming a slurry comprises the steps of A') provide a dispersion medium, electrode active material and optionally conductive additives, B') form a slurry from said dispersion medium, electrode active material and optionally conductive additive, C') provide a mixture comprising tagged binder, dispersion medium and optionally untagged binder, D') add said mixture comprising tagged binder, dispersion medium and optionally untagged binder to the slurry comprising dispersion medium, electrode active material, and optionally conductive additive. 14.The methods of any of claims 8 to 13, wherein the method forms a slurry according to claims 1 to 15.An electrode made from the slurry of claims 1 to 16.An electrode comprisingaf) electrode active layer comprising electrode active material, tagged binder, optionally conductive additive, and optionally untagged binder, and a conductive foil, wherein the tagged binder comprises a polymer bound to an organic fluorescent tag. 17.A cell comprising the electrode of claim 15 or claim 18.A method of making an electrode comprising the steps of Å) B) C) D) providing a slurry comprising dispersing medium, electrode active material, tagged binder, optionally conductive additive; and optionally untagged binder, wherein the tagged binder comprises a polymer bound to an organic fluorescent tag; coating said slurry on a foil; drying the slurry; calendering the slurry and optionally sintering the calendered slurry. 19.A method for monitoring binder migration during battery fabrication comprising the steps of a) providing a slurry comprising dispersing medium, electrode active material, tagged binder, and optionally conductive additive, wherein the tagged binder comprises a polymer bound to an organic fluorescent tag; b) forming an electrode from said slurry; c) using fluorescence microscopy to visualise the distribution of the tagged binder in the electrode; and d) optionally adjusting steps a) and b) based on the results of step c) so as to adjust the distribution of the tagged binder in the electrode. 20.The method of claim 19, wherein step c) comprises visualising the distribution of the tagged binder (optionally in an in line process) prior to the incorporation of the electrode in a ce
11. ll. 21.The method of claim 19, wherein step c) comprises visualising the distribution of the tagged binder (optionally in an off line process) after incorporation of the electrode in a cell. 22.A method of visualising a tagged binder comprising the steps ofi) providing an electrode or a cell comprising a tagged binder, said tagged binder comprising a polymer bound to an organic fluorescent tag; ii) cross-sectioning the electrode or the cell; and iii) visualising the distribution of binder in the electrode or the cell using 5 fluorescence microscopy. 23.The method of claim 22, wherein the cross-sectioning includes mechanical and non- mechanical cutting procedures.
SE2351024A 2023-08-31 2023-08-31 Electrode comprising binder with organic fluorescent tag SE547722C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2351024A SE547722C2 (en) 2023-08-31 2023-08-31 Electrode comprising binder with organic fluorescent tag
EP24197565.5A EP4516814A1 (en) 2023-08-31 2024-08-30 Electrode comprising binder with organic fluorescent tag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2351024A SE547722C2 (en) 2023-08-31 2023-08-31 Electrode comprising binder with organic fluorescent tag

Publications (2)

Publication Number Publication Date
SE2351024A1 true SE2351024A1 (en) 2025-03-01
SE547722C2 SE547722C2 (en) 2025-11-18

Family

ID=92633219

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2351024A SE547722C2 (en) 2023-08-31 2023-08-31 Electrode comprising binder with organic fluorescent tag

Country Status (2)

Country Link
EP (1) EP4516814A1 (en)
SE (1) SE547722C2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3324468A1 (en) * 2015-07-14 2018-05-23 Zeon Corporation Binder composition for secondary battery electrodes, conductive material paste composition for secondary battery electrodes, slurry composition for secondary battery electrodes, electrode for secondary batteries, and secondary battery
US20190348681A1 (en) * 2016-12-28 2019-11-14 Zeon Corporation Slurry composition for non-aqueous secondary battery negative electrode and method of producing the same, negative electrode for non-aqueous secondary battery, and non-aqueous secondary battery
EP3726631A1 (en) * 2018-02-01 2020-10-21 Lg Chem, Ltd. Composition for forming insulating layer for lithium secondary battery, and method for manufacturing electrode for lithium secondary battery using same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101425572B (en) * 2007-10-29 2011-12-14 比亚迪股份有限公司 Anode plate for lithium ionic cell and preparation thereof
JP2010277821A (en) * 2009-05-28 2010-12-09 Toyota Motor Corp Electrode slurry inspection method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3324468A1 (en) * 2015-07-14 2018-05-23 Zeon Corporation Binder composition for secondary battery electrodes, conductive material paste composition for secondary battery electrodes, slurry composition for secondary battery electrodes, electrode for secondary batteries, and secondary battery
US20190348681A1 (en) * 2016-12-28 2019-11-14 Zeon Corporation Slurry composition for non-aqueous secondary battery negative electrode and method of producing the same, negative electrode for non-aqueous secondary battery, and non-aqueous secondary battery
EP3726631A1 (en) * 2018-02-01 2020-10-21 Lg Chem, Ltd. Composition for forming insulating layer for lithium secondary battery, and method for manufacturing electrode for lithium secondary battery using same

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
Chen. Y., et al "Fluorogenic Reactions in Chemical Biology: Seeing Chemistry in Cells" Chemical & Biomedical imaging. 2023, 1, 590-619. *
Huang. T., et al "Chemical Tagging in Mass Spectroscopy for systems biology". Anal. Chem. 2019, vol 91, p. 109-125. *
Kumano, N., et al. "Migration of binder and conductive agent during drying process of Li-ion battery cathodes". Journal of Power Sources. 2023.p. 1-10. https://doi.org/10.1016/j.jpowsour.2023.233883 *
Lee, E-H., et al "Visualization of styrene-butadiene rubber (SBR) latex and large-scale analysis of the microstructure of lithium-ion battery (LIB) anodes". Journal of Power Sources. 2023. p. 1-11. https://doi.org/10.1016/j.jpowsour.2022.232552 *
Lim, S., et al. "Latex migration in battery slurries during drying". Langmuir 2013, vol 29, p. 8233−8244. *
Oliveira, B. L., et al "Inverse electron demand Diels-Alder reactions in chemical biology". Chem. Soc. Rev., 2017, 46, 4895. *

Also Published As

Publication number Publication date
EP4516814A1 (en) 2025-03-05
SE547722C2 (en) 2025-11-18

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