CN114730887A - 正极集流体及含有该正极集流体的正极极片、电池、电池模组、电池包、和装置 - Google Patents

正极集流体及含有该正极集流体的正极极片、电池、电池模组、电池包、和装置 Download PDF

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CN114730887A
CN114730887A CN202080081676.1A CN202080081676A CN114730887A CN 114730887 A CN114730887 A CN 114730887A CN 202080081676 A CN202080081676 A CN 202080081676A CN 114730887 A CN114730887 A CN 114730887A
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current collector
battery
peak
positive electrode
aluminum
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CN114730887B (zh
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刘欣
黄起森
李铭领
刘向辉
李铖
彭佳
梁成都
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Contemporary Amperex Technology Co Ltd
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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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/665—Composites
    • H01M4/667—Composites in the form of layers, e.g. coatings
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • H01M4/662—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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/664—Ceramic materials
    • 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
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/668—Composites of electroconductive material and synthetic resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/46—Separators, membranes or diaphragms characterised by their combination with electrodes
    • 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
    • H01M2004/028—Positive 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
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Abstract

本申请涉及一种正极集流体及含有该正极集流体的正极极片、电池、电池模组、电池包、和装置。具体地，本申请公开了一种正极集流体，包括有机支撑层以及设置于所述有机支撑层的至少一个表面上的铝基导电层，所述铝基导电层含有铝(Al)和选自氧(O)、氮(N)、氟(F)、硼(B)、硫(S)、磷(P)的至少一种改性元素，所述铝基导电层经刻蚀去除表面钝化层后由X射线光电子能谱(XPS)所获得的XPS谱图中，至少具有在70eV至73.5eV范围内的第一峰和在73.5eV至78eV的范围内的第二峰，且所述第二峰与所述第一峰的峰强度之比x满足：0＜x≤3.0。所述正极集流体在电池应用中可大大降低电芯在受穿刺、挤压、跌落等异常机械破坏时出现短路而发生热失控的可能性，提高改善热失控的响应速度，极大改善电池的安全性能。

Description

PCT国内申请，说明书已公开。

Claims (15)

  1. PCT国内申请，权利要求书已公开。
CN202080081676.1A 2020-08-31 2020-08-31 正极集流体及含有该正极集流体的正极极片、电池、电池模组、电池包、和装置 Active CN114730887B (zh)

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CN115810876A (zh) * 2022-10-28 2023-03-17 宁德时代新能源科技股份有限公司 导电件、电池和用电装置

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CN114730887B (zh) * 2020-08-31 2023-12-26 宁德时代新能源科技股份有限公司 正极集流体及含有该正极集流体的正极极片、电池、电池模组、电池包、和装置
CN114824289A (zh) * 2022-05-13 2022-07-29 扬州纳力新材料科技有限公司 多层结构集流体及其制备方法

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CN105742583A (zh) * 2014-12-31 2016-07-06 三星电子株式会社 复合负极活性材料、包括其的负极和锂二次电池
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CN115810876A (zh) * 2022-10-28 2023-03-17 宁德时代新能源科技股份有限公司 导电件、电池和用电装置

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US11705556B2 (en) 2023-07-18
CN114730887B (zh) 2023-12-26
US20230083168A1 (en) 2023-03-16
WO2022041254A1 (zh) 2022-03-03
EP4109602A4 (en) 2023-12-06

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