CN114127989A - 负极片、电极组件、电池和电子装置 - Google Patents

负极片、电极组件、电池和电子装置 Download PDF

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Publication number
CN114127989A
CN114127989A CN202080052345.5A CN202080052345A CN114127989A CN 114127989 A CN114127989 A CN 114127989A CN 202080052345 A CN202080052345 A CN 202080052345A CN 114127989 A CN114127989 A CN 114127989A
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China
Prior art keywords
coating
active material
carbon nanotubes
material layer
negative electrode
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Pending
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CN202080052345.5A
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English (en)
Inventor
黄须啟
宋远卿
周丰
盛阳平
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Ningde Amperex Technology Ltd
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Ningde Amperex Technology Ltd
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Publication of CN114127989A publication Critical patent/CN114127989A/zh
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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
    • H01M4/13—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
    • 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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

本申请提供一种负极片，包括集流体和位于所述集流体上的活性材料层。所述负极片还包括位于所述集流体和所述活性材料层之间的第一涂层及位于所述第一涂层和所述活性材料层之间的第二涂层。其中，所述活性材料层与所述第二涂层包括碳纳米管，所述活性材料层的碳纳米管与所述第二涂层的碳纳米管相互连接。本申请还提供一种电极组件、电池和电子装置。

Description

PCT国内申请，说明书已公开。

Claims (10)

  1. PCT国内申请，权利要求书已公开。
CN202080052345.5A 2020-02-05 2020-02-05 负极片、电极组件、电池和电子装置 Pending CN114127989A (zh)

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PCT/CN2020/074319 WO2021155503A1 (zh) 2020-02-05 2020-02-05 负极片、电极组件、电池和电子装置

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CN114127989A true CN114127989A (zh) 2022-03-01

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WO (1) WO2021155503A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117117205A (zh) * 2023-10-25 2023-11-24 宁德时代新能源科技股份有限公司 复合负极集流体、负极极片、卷绕结构电芯及二次电池
CN117133927A (zh) * 2023-10-25 2023-11-28 宁德时代新能源科技股份有限公司 复合正极集流体、正极极片、卷绕结构电芯及用电装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102585559B1 (ko) * 2020-10-15 2023-10-05 에스케이온 주식회사 이차 전지용 음극 및 이를 포함하는 이차 전지
CN114914444B (zh) * 2021-02-10 2024-08-09 中国石油化工股份有限公司 硅碳负极极片及其制备方法、锂离子电池
CN115516662A (zh) * 2021-11-11 2022-12-23 宁德新能源科技有限公司 电化学装置和电子装置
CN114420999B (zh) * 2021-12-31 2024-02-27 东莞新能源科技有限公司 电化学装置及包含该电化学装置的电子装置
CN115842102B (zh) * 2022-11-18 2024-10-18 宁德时代新能源科技股份有限公司 阴极极片及其制备方法、电池和用电装置
WO2024212200A1 (zh) * 2023-04-14 2024-10-17 宁德时代新能源科技股份有限公司 负极极片以及包含其的二次电池和用电装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103187591A (zh) * 2011-12-28 2013-07-03 清华大学 锂离子电池的制备方法
CN103187586A (zh) * 2011-12-28 2013-07-03 清华大学 锂离子电池
CN103633293A (zh) * 2013-11-08 2014-03-12 鲍添增 以硬碳软碳为活性材料的锂离子电池负极极片及锂离子电池
US20180108941A1 (en) * 2015-05-13 2018-04-19 Korea Forest Research Institute Three-dimensional mesh structure form electrode for electrochemical device, method for producing same, and electrochemical device comprising same
US20200014028A1 (en) * 2017-02-24 2020-01-09 Ningde Amperex Technology Limited Modified graphite negative electrode material, preparation method thereof and secondary battery
US20200153047A1 (en) * 2017-07-25 2020-05-14 Murata Manufacturing Co., Ltd. Lithium ion secondary battery

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103187591A (zh) * 2011-12-28 2013-07-03 清华大学 锂离子电池的制备方法
CN103187586A (zh) * 2011-12-28 2013-07-03 清华大学 锂离子电池
CN103633293A (zh) * 2013-11-08 2014-03-12 鲍添增 以硬碳软碳为活性材料的锂离子电池负极极片及锂离子电池
US20180108941A1 (en) * 2015-05-13 2018-04-19 Korea Forest Research Institute Three-dimensional mesh structure form electrode for electrochemical device, method for producing same, and electrochemical device comprising same
US20200014028A1 (en) * 2017-02-24 2020-01-09 Ningde Amperex Technology Limited Modified graphite negative electrode material, preparation method thereof and secondary battery
US20200153047A1 (en) * 2017-07-25 2020-05-14 Murata Manufacturing Co., Ltd. Lithium ion secondary battery

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117117205A (zh) * 2023-10-25 2023-11-24 宁德时代新能源科技股份有限公司 复合负极集流体、负极极片、卷绕结构电芯及二次电池
CN117133927A (zh) * 2023-10-25 2023-11-28 宁德时代新能源科技股份有限公司 复合正极集流体、正极极片、卷绕结构电芯及用电装置
CN117117205B (zh) * 2023-10-25 2024-04-02 宁德时代新能源科技股份有限公司 复合负极集流体、负极极片、卷绕结构电芯及二次电池
CN117133927B (zh) * 2023-10-25 2024-04-02 宁德时代新能源科技股份有限公司 复合正极集流体、正极极片、卷绕结构电芯及用电装置

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