CN106797015A - 极片涂层的移除方法 - Google Patents

极片涂层的移除方法 Download PDF

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Publication number
CN106797015A
CN106797015A CN201480081503.4A CN201480081503A CN106797015A CN 106797015 A CN106797015 A CN 106797015A CN 201480081503 A CN201480081503 A CN 201480081503A CN 106797015 A CN106797015 A CN 106797015A
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CN
China
Prior art keywords
pole piece
coating
removing method
region
coating according
Prior art date
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Pending
Application number
CN201480081503.4A
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English (en)
Inventor
张玢
何平
赵义
方宏新
程文强
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Ningde Amperex Technology Ltd
Dongguan Amperex Technology Ltd
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Ningde Amperex Technology Ltd
Dongguan Amperex Technology Ltd
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Application filed by Ningde Amperex Technology Ltd, Dongguan Amperex Technology Ltd filed Critical Ningde Amperex Technology Ltd
Publication of CN106797015A publication Critical patent/CN106797015A/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
    • B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/04—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by a combination of operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • 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
    • H01M4/04—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
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

本申请提供了一种极片涂层的移除方法，极片包括集流体和涂覆在集流体的至少一个表面上的涂层，包括步骤：(一)使用溶剂润湿极片上的待移除区域的涂层；(二)激光束照射极片上的该待移除区域的涂层，以使浸润极片上的该待移除区域的涂层的溶剂气化，以击溃极片上的该待移除区域的涂层，从而使极片上该待移除区域处的集流体露出；以及(三)清除在步骤(二)中产生的涂层残留物。使用溶剂提前将极片上的待移除区域的涂层润湿，在激光束照射到润湿的极片上后，存在于极片中的溶剂吸收激光束的能量而瞬间气化，产生很强的瞬态压力，在巨大压力的作用下，涂层的颗粒从集流体上剥离，达到移除涂层的颗粒的作用，从而不会损伤到极片且能避免极片变形。

Description

PCT国内申请，说明书已公开。

Claims (17)

  1. PCT国内申请，权利要求书已公开。
CN201480081503.4A 2014-09-12 2014-09-12 极片涂层的移除方法 Pending CN106797015A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2014/086400 WO2016037352A1 (zh) 2014-09-12 2014-09-12 极片涂层的移除方法

Publications (1)

Publication Number Publication Date
CN106797015A true CN106797015A (zh) 2017-05-31

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ID=55458273

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CN201480081503.4A Pending CN106797015A (zh) 2014-09-12 2014-09-12 极片涂层的移除方法

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Country Link
US (1) US20170170454A1 (zh)
EP (1) EP3190646A4 (zh)
JP (1) JP2017526128A (zh)
KR (1) KR20170036005A (zh)
CN (1) CN106797015A (zh)
WO (1) WO2016037352A1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109465251A (zh) * 2018-11-23 2019-03-15 惠州锂威新能源科技有限公司 一种清除极片涂层的工艺及装置
CN112038565A (zh) * 2020-07-23 2020-12-04 深圳市比亚迪锂电池有限公司 极片开槽方法及装置
CN112658489A (zh) * 2020-12-29 2021-04-16 比亚迪股份有限公司 清除极片活性物质的方法
CN113782711A (zh) * 2020-05-08 2021-12-10 德国安海公司 用于锂离子蓄电池的电极的承载膜的无接触处理
CN116174405A (zh) * 2022-12-30 2023-05-30 广东利元亨智能装备股份有限公司 一种激光清洗设备、激光清洗方法和极片制造系统

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105406028A (zh) * 2014-09-12 2016-03-16 东莞新能源科技有限公司 极片涂层的移除方法
CN107661885B (zh) * 2017-10-23 2020-07-03 惠州市成泰自动化科技有限公司 一种电芯极耳自动清洗装备
CN112038558B (zh) * 2020-07-23 2022-11-18 惠州锂威新能源科技有限公司 一种极片涂层刮除系统及极片涂层刮除方法
CN112792006B (zh) * 2020-12-29 2022-01-07 比亚迪股份有限公司 极片活性物质的清除方法及清除设备
US20230113276A1 (en) * 2021-10-13 2023-04-13 Applied Materials, Inc. Laser processing of lithium battery web

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CN101473466A (zh) * 2006-05-12 2009-07-01 A123系统公司 加工带涂层板的设备和方法

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CN1577656A (zh) * 2003-07-10 2005-02-09 三洋电机株式会社 电容器元件的制造方法
CN1695875A (zh) * 2004-01-14 2005-11-16 臼井国际产业株式会社 从树脂涂层金属管上去除树脂层的方法
CN101473466A (zh) * 2006-05-12 2009-07-01 A123系统公司 加工带涂层板的设备和方法
JP2008042017A (ja) * 2006-08-08 2008-02-21 Tomozumi Kamimura レジストを回収可能なレジスト剥離除去方法及びそれを用いる半導体製造装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109465251A (zh) * 2018-11-23 2019-03-15 惠州锂威新能源科技有限公司 一种清除极片涂层的工艺及装置
CN113782711A (zh) * 2020-05-08 2021-12-10 德国安海公司 用于锂离子蓄电池的电极的承载膜的无接触处理
CN112038565A (zh) * 2020-07-23 2020-12-04 深圳市比亚迪锂电池有限公司 极片开槽方法及装置
CN112658489A (zh) * 2020-12-29 2021-04-16 比亚迪股份有限公司 清除极片活性物质的方法
CN112658489B (zh) * 2020-12-29 2022-05-13 比亚迪股份有限公司 清除极片活性物质的方法
CN116174405A (zh) * 2022-12-30 2023-05-30 广东利元亨智能装备股份有限公司 一种激光清洗设备、激光清洗方法和极片制造系统

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Publication number Publication date
WO2016037352A1 (zh) 2016-03-17
US20170170454A1 (en) 2017-06-15
JP2017526128A (ja) 2017-09-07
EP3190646A4 (en) 2018-04-04
KR20170036005A (ko) 2017-03-31
EP3190646A1 (en) 2017-07-12

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Application publication date: 20170531