SE547031C2 - Aqueous cathode slurry composition for cell cathode - Google Patents

Aqueous cathode slurry composition for cell cathode

Info

Publication number
SE547031C2
SE547031C2 SE2350466A SE2350466A SE547031C2 SE 547031 C2 SE547031 C2 SE 547031C2 SE 2350466 A SE2350466 A SE 2350466A SE 2350466 A SE2350466 A SE 2350466A SE 547031 C2 SE547031 C2 SE 547031C2
Authority
SE
Sweden
Prior art keywords
slurry composition
optionally
acrylate
binder
binder polymer
Prior art date
Application number
SE2350466A
Other languages
Swedish (sv)
Other versions
SE2350466A1 (en
Inventor
Prasad Mangesh Korde
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 SE2350466A priority Critical patent/SE547031C2/en
Priority to PCT/EP2024/060388 priority patent/WO2024218134A1/en
Publication of SE2350466A1 publication Critical patent/SE2350466A1/en
Publication of SE547031C2 publication Critical patent/SE547031C2/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
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • 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
    • 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
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
    • 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)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The present disclosure relates to a binder system for an electrode, a slurry composition comprising said binder composition for use in forming electrodes, electrodes formed from the same and cells formed from said electrode. The binder system contains a binder polymer, an acidic polysaccharide, and a lithiated polymer. The electrodes formed using the binder system show excellent electrochemical performance and stability including long cycle life, high capacity retention, good flexibility and good adhesion.

Claims (16)

Claims
1. A slurry composition comprising: a cathode active material; a binder system; a dispersing medium; and optionally a conductive agent, wherein the binder system comprises: a binder polymer, alginic acid, and lithium polyacrylate; wherein the binder polymer comprises an acrylic polymer selected from one or more of po|y(methy| methacrylate), po|y(methy| acrylate), po|y(ethy| acrylate), po|y(buty| acrylate), poly(2-ethylhe> wherein the binder polymer comprises an acrylamide copolymer formed from different monomers comprising: a) 20 to 80 wt% (meth)acrylamide; b) 5 to 50 wt% unsaturated organic acids selected from carboxylic acids, sulfonic acids, or miXtures thereof, optionally present as alkali metal salts thereof; c) optionally, O to 75 wt% monomers of hydroxyl group-containing vinyl compounds such as hydroxyl-containing vinyl ethers.
2. The slurry composition according to claim 1, wherein the slurry composition has a solids content of from 65 to 75 wt%.
3. The slurry composition according to claim 1 or claim 2, wherein the binder system is present in an amount of from 2 to 5 wt% of the dry composition, based on the total weight of the dry compositiong :;f'::1¿: r';:.::ï:,:.'_..:fí'ï:'::. *.:~'°tf;.::.íf:*:;_;; iii".
4. The slurry composition of any preceding claim, wherein the dispersing medium comprises water.
5. The slurry composition of any preceding claim, wherein the cathode active material comprises a lithium nickel manganese cobalt oxide.
6. An electrode formed from the slurry composition of any preceding claim.
7. A method of making a slurry composition comprising the steps of: a. providing a composition comprising a cathode active material, alginic acid, lithium polyacrylate, a binder polymer, optionally a conductive agent, and optionally a dispersing medium; and b. adding dispersing medium to the composition and miXing to provide a slurry composition having a solids content of from 60 wt% to 80 wt%; provided that when the binder polymer comprises acrylic polymer, the method comprises adding said acrylic polymer, optionally together with dispersing medium, to an intermediate slurry composition having solids content of from 65 wt% to 85 wt%, and miXing to provide a slurry composition having a solids content of from 60 wt% to 80 wt%, wherein the intermediate slurry composition comprises cathode active material, alginic acid, lithium polyacrylate, optionally a conductive agent and dispersing medium, wherein the binder polymer comprises an acrylic polymer selected from one or more of po|y(methy| methacrylate), po|y(methy| acrylate), po|y(ethy| acrylate), po|y(buty| acrylate), poly(2-ethylhe> wherein the binder polymer comprises an acrylamide copolymer formed from different monomers comprising: a) 20 to 80 wt% (meth)acrylamide; b) 5 to 50 wt% unsaturated organic acids selected from carboxylic acids, sulfonic acids, or miXtures thereof, optionally present as alkali metal salts thereof; c) optionally, 0 to 75 wt% monomers of hydroxyl group-containing vinyl compounds such as hydroxyl-containing vinyl ethers.
8. The method of claim 7, wherein the dispersing medium is according to claimand/or wherein the cathode active material is according to claim
9. An electrode comprising: a cathode active material; a binder system; and optionally a conductive agent, wherein the binder system comprises: a binder polymer, alginic acid, and lithium polyacrylate, wherein the binder polymer comprises an acrylic polymer selected from one or more of po|y(methy| methacrylate), po|y(methy| acrylate), po|y(ethy| acrylate), po|y(buty| acrylate), poly(2-ethylhe> a) 20 to 80 wt% (meth)acrylamide; b) 5 to 50 wt% unsaturated organic acids selected from carboxylic acids, sulfonic acids, or miXtures thereof, optionally present as alkali metal salts thereof; c) optionally, 0 to 75 wt% monomers of hydroxyl group-containing vinyl compounds such as hydroxyl-containing vinyl ethers.
10. The electrode of claim 9, wherein the cathode active material is according to claim
11. A cell comprising the electrode of claim 6, claim 9 or claim
12. A battery pack comprising the cell of claim
13. A method of making an electrode comprising providing a slurry composition according to any one of claims 1 to 5; and processing the slurry composition to form an electrode.
14. The method of claim 13, wherein the processing comprises coating a conductive foil with the slurry composition; and removing the dispersing medium to provide an electrode.
15. A binder system for an electrode comprising: a binder polymer, alginic acid, and lithium polyacrylate, wherein the binder polymer comprises an acrylic polymer selected from one or more of poly(methyl methacrylate), poly(methyl acrylate), poly(ethyl acrylate), poly(butyl acrylate), poly(2-ethylhe> wherein the binder polymer comprises an acrylamide copolymer formed from different monomers comprising: a) 20 to 80 wt% (meth)acrylamide; b) 5 to 50 wt% unsaturated organic acids selected from carboxylic acids, sulfonic acids, or miXtures thereof, optionally present as alkali metal salts thereof; c) optionally, 0 to 75 wt% monomers of hydroxyl group-containing vinyl compounds such as hydroxyl-containing vinyl ethers.
16. The binder system of claim 15, wherein the binder system comprises about 0.1 to 30 wt% of the binder polymer, about 55 to 97 wt% of alginic acid and about 0.1 to 30 wt% of lithium polyacrylate, wherein the term “about” means that the defined value may vary by d=10%.
SE2350466A 2023-04-19 2023-04-19 Aqueous cathode slurry composition for cell cathode SE547031C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE2350466A SE547031C2 (en) 2023-04-19 2023-04-19 Aqueous cathode slurry composition for cell cathode
PCT/EP2024/060388 WO2024218134A1 (en) 2023-04-19 2024-04-17 Aqueous cathode slurry composition for cell cathode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2350466A SE547031C2 (en) 2023-04-19 2023-04-19 Aqueous cathode slurry composition for cell cathode

Publications (2)

Publication Number Publication Date
SE2350466A1 SE2350466A1 (en) 2024-10-20
SE547031C2 true SE547031C2 (en) 2025-04-08

Family

ID=90826511

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2350466A SE547031C2 (en) 2023-04-19 2023-04-19 Aqueous cathode slurry composition for cell cathode

Country Status (2)

Country Link
SE (1) SE547031C2 (en)
WO (1) WO2024218134A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180034058A1 (en) * 2016-07-28 2018-02-01 Samsung Sdi Co., Ltd. Binder composition for lithium secondary battery, electrode for lithium secondary battery including the binder composition, and lithium secondary battery including the electrode
CN105153974B (en) * 2015-07-24 2019-01-15 深圳市腾龙源实业有限公司 A kind of aqueous compound binding agent and its prepare aqueous positive-pole slurry methods
US20190074516A1 (en) * 2017-09-07 2019-03-07 Hyundai Motor Company Electrode slurry and electrode and lithium secondary battery including the same
EP4156332A1 (en) * 2020-12-14 2023-03-29 The School Corporation Kansai University Electrode for electrochemical devices and nonaqueous electrolyte secondary battery

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2940133A1 (en) * 2014-02-21 2015-08-27 Hercules Incorporated Cross-linked binder for lithium ion batteries
CN111106352A (en) * 2019-12-30 2020-05-05 国联汽车动力电池研究院有限责任公司 Cross-linking type water-based binder for lithium ion battery and electrode prepared from cross-linking type water-based binder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105153974B (en) * 2015-07-24 2019-01-15 深圳市腾龙源实业有限公司 A kind of aqueous compound binding agent and its prepare aqueous positive-pole slurry methods
US20180034058A1 (en) * 2016-07-28 2018-02-01 Samsung Sdi Co., Ltd. Binder composition for lithium secondary battery, electrode for lithium secondary battery including the binder composition, and lithium secondary battery including the electrode
US20190074516A1 (en) * 2017-09-07 2019-03-07 Hyundai Motor Company Electrode slurry and electrode and lithium secondary battery including the same
EP4156332A1 (en) * 2020-12-14 2023-03-29 The School Corporation Kansai University Electrode for electrochemical devices and nonaqueous electrolyte secondary battery

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Aripin, H. et al. "Performance of Graphite/SiO2 Composites as Cathode Electronic Active Layer in Al-Air Batteries" In: 2020 IEEE International Conference ono Sustainable Engineering and Creative Computing (ICSECC), Indonesia, 2020, pp. 136-140. *
Kurenkov, V. F. et al. "Alkaline Hydrolysis of Polyacrylamide" In: Russ. J. Appl. Chem., 2001, Vol. 74, No. 4, pp. 543-554. *

Also Published As

Publication number Publication date
SE2350466A1 (en) 2024-10-20
WO2024218134A1 (en) 2024-10-24

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