MA71197A1 - Matériau d'électrode négative et procédé de préparation associé, et batterie - Google Patents

Matériau d'électrode négative et procédé de préparation associé, et batterie

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Publication number
MA71197A1
MA71197A1 MA71197A MA71197A MA71197A1 MA 71197 A1 MA71197 A1 MA 71197A1 MA 71197 A MA71197 A MA 71197A MA 71197 A MA71197 A MA 71197A MA 71197 A1 MA71197 A1 MA 71197A1
Authority
MA
Morocco
Prior art keywords
negative electrode
electrode material
nitrogen atoms
uniformity
nitrogen
Prior art date
Application number
MA71197A
Other languages
English (en)
Inventor
Peng HE
Jianguo Ren
Xueqin He
Haihui ZHOU
Tao Xu
Hang DONG
Original Assignee
Btr New Material Group 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 Btr New Material Group Co., Ltd. filed Critical Btr New Material Group Co., Ltd.
Publication of MA71197A1 publication Critical patent/MA71197A1/fr

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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
    • H01M10/052—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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/386—Silicon or alloys based on silicon
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/20—Graphite
    • C01B32/205—Preparation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/20—Graphite
    • C01B32/21—After-treatment
    • 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
    • H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
    • 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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • 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
    • H01M4/362—Composites
    • H01M4/366—Composites as layered products
    • 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
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • 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
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
    • 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
    • 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
    • H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C01P2002/52—Solid solutions containing elements as dopants
    • C01P2002/54—Solid solutions containing elements as dopants one element only
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C01P2004/84—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases one phase coated with the other
    • C01P2004/86—Thin layer coatings, i.e. the coating thickness being less than 0.1 time the particle radius
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/11—Powder tap density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties
    • 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
    • H01M2004/021—Physical characteristics, e.g. porosity, surface area
    • 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
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/027—Negative electrodes
    • 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

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

Matériau d'électrode négative et procédé de préparation associé, et batterie obtenue à l'aide du matériau d'électrode négative ou du procédé de préparation. Le matériau d'électrode négative comprend un noyau intérieur et une couche de revêtement située sur au moins une partie de la surface du noyau intérieur. Le matériau d'électrode négative est dopé avec des atomes d'azote, et l'uniformité de la concentration de dopage des atomes d'azote est A, l'uniformité A étant obtenue au moyen du procédé de test suivant consistant à : acquérir de manière aléatoire 5 particules de matériau d'électrode négative, sélectionner de manière aléatoire n régions de 1 µm*1 µm sur une particule unique de matériau d'électrode négative, détecter respectivement le signal de spectre d'énergie de l'azote au moyen d'un spectromètre d'énergie à microscope électronique à balayage, mesurer la proportion en quantité des atomes d'azote dans chaque région, et calculer la valeur moyenne de la proportion en quantité d'atomes d'azote, qui est désignée par R ; et l'uniformité est la formule (I), et A ≤ 0,5, R<sub>n</sub> représentant la proportion en quantité d'atomes d'azote mesurée dans la n-ième région, et n étant un nombre naturel supérieur ou égal à 5. Au moyen d'un dopage uniforme avec des atomes d'azote, la structure de bande d'énergie du matériau d'électrode négative en graphite peut être régulée, favorisant ainsi une transmission dynamique et améliorant l'efficacité coulombienne initiale ; de plus, par introduction d'atomes d'azote, des propriétés de pseudo-capacité peuvent être générées dans le matériau, ce qui permet d'améliorer la capacité de stockage de lithium du matériau d'électrode négative.
MA71197A 2023-08-24 2025-03-25 Matériau d'électrode négative et procédé de préparation associé, et batterie MA71197A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202311076468.4A CN116979056A (zh) 2023-08-24 2023-08-24 负极材料及其制备方法、锂离子电池
PCT/CN2024/073311 WO2025039468A1 (fr) 2023-08-24 2024-01-19 Matériau d'électrode négative et procédé de préparation associé, et batterie

Publications (1)

Publication Number Publication Date
MA71197A1 true MA71197A1 (fr) 2025-12-31

Family

ID=88473132

Family Applications (1)

Application Number Title Priority Date Filing Date
MA71197A MA71197A1 (fr) 2023-08-24 2025-03-25 Matériau d'électrode négative et procédé de préparation associé, et batterie

Country Status (8)

Country Link
US (1) US20250162875A1 (fr)
EP (1) EP4567930A4 (fr)
JP (1) JP2025531095A (fr)
KR (1) KR20250041068A (fr)
CN (1) CN116979056A (fr)
MA (1) MA71197A1 (fr)
TW (1) TW202510386A (fr)
WO (1) WO2025039468A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116979056A (zh) * 2023-08-24 2023-10-31 贝特瑞新材料集团股份有限公司 负极材料及其制备方法、锂离子电池
CN119890265B (zh) * 2024-09-30 2025-11-25 贝特瑞新材料集团股份有限公司 一种锂离子电池的负极材料及其制备方法、电池
WO2026011870A1 (fr) * 2024-11-28 2026-01-15 贝特瑞新材料集团股份有限公司 Matériau d'électrode négative, feuille d'électrode négative et batterie rechargeable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113889596A (zh) * 2020-07-02 2022-01-04 洛阳月星新能源科技有限公司 一种氮掺杂硬碳包覆人造石墨复合材料的制备方法
CN114050243A (zh) * 2021-11-11 2022-02-15 博尔特新材料(银川)有限公司 氮掺杂协同导电聚合物改性硅碳复合负极材料及制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011243567A (ja) * 2010-04-20 2011-12-01 Jfe Chemical Corp リチウムイオン二次電池用負極材料およびその製造方法、リチウムイオン二次電池用負極ならびにリチウムイオン二次電池
JP5573559B2 (ja) * 2010-09-30 2014-08-20 三菱化学株式会社 リチウムイオン二次電池用炭素材料
JP2013219023A (ja) * 2012-03-16 2013-10-24 Sumitomo Bakelite Co Ltd リチウムイオン二次電池用炭素材、リチウムイオン二次電池用負極材およびリチウムイオン二次電池
JP6977491B2 (ja) * 2017-11-10 2021-12-08 戸田工業株式会社 リチウムイオン二次電池用の負極材料、及びそれを用いたリチウムイオン二次電池。
CN113896193B (zh) * 2021-08-30 2023-05-30 中国科学院宁波材料技术与工程研究所 一种表面改性的剥离石墨及其制备方法和应用
CN114497546A (zh) * 2021-12-28 2022-05-13 贝特瑞新材料集团股份有限公司 石墨负极材料及其制备方法、锂离子电池
CN115528223B (zh) * 2022-08-31 2026-01-13 碳一新能源集团有限责任公司 一种负极材料及其制备方法和应用
CN116314638B (zh) * 2022-09-07 2026-02-06 贝特瑞新材料集团股份有限公司 复合负极材料及其制备方法、锂离子电池
CN116454237A (zh) * 2023-04-26 2023-07-18 厦门海辰储能科技股份有限公司 一种负极颗粒及其制备方法、负极极片及储能装置
CN116979056A (zh) * 2023-08-24 2023-10-31 贝特瑞新材料集团股份有限公司 负极材料及其制备方法、锂离子电池

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113889596A (zh) * 2020-07-02 2022-01-04 洛阳月星新能源科技有限公司 一种氮掺杂硬碳包覆人造石墨复合材料的制备方法
CN114050243A (zh) * 2021-11-11 2022-02-15 博尔特新材料(银川)有限公司 氮掺杂协同导电聚合物改性硅碳复合负极材料及制备方法

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Publication number Publication date
EP4567930A4 (fr) 2026-03-25
TW202510386A (zh) 2025-03-01
US20250162875A1 (en) 2025-05-22
WO2025039468A1 (fr) 2025-02-27
CN116979056A (zh) 2023-10-31
KR20250041068A (ko) 2025-03-25
EP4567930A1 (fr) 2025-06-11
JP2025531095A (ja) 2025-09-19

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