WO2019031766A3 - 리튬금속과 무기물 복합박막 제조방법 및 이를 이용한 리튬 이차전지 음극의 전리튬화 방법 - Google Patents

리튬금속과 무기물 복합박막 제조방법 및 이를 이용한 리튬 이차전지 음극의 전리튬화 방법 Download PDF

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Publication number
WO2019031766A3
WO2019031766A3 PCT/KR2018/008817 KR2018008817W WO2019031766A3 WO 2019031766 A3 WO2019031766 A3 WO 2019031766A3 KR 2018008817 W KR2018008817 W KR 2018008817W WO 2019031766 A3 WO2019031766 A3 WO 2019031766A3
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WO
WIPO (PCT)
Prior art keywords
inorganic material
lithium metal
negative electrode
material composite
thin film
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PCT/KR2018/008817
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English (en)
French (fr)
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WO2019031766A2 (ko
Inventor
우상욱
김은경
강윤아
송준혁
채오병
Original Assignee
주식회사 엘지화학
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.)
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Publication date
Priority claimed from KR1020180087814A external-priority patent/KR102327179B1/ko
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to EP18843393.2A priority Critical patent/EP3605670B1/en
Priority to CN201880024013.9A priority patent/CN110574191B/zh
Priority to PL18843393T priority patent/PL3605670T3/pl
Priority to JP2019557572A priority patent/JP7045575B2/ja
Priority to US16/606,458 priority patent/US11316145B2/en
Publication of WO2019031766A2 publication Critical patent/WO2019031766A2/ko
Publication of WO2019031766A3 publication Critical patent/WO2019031766A3/ko

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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
    • H01M4/04—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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Secondary Cells (AREA)

Abstract

본 발명은, 용융된 리튬에 무기물 분말을 투입해 혼합물을 만드는 제 1 단계; 상기 혼합물을 압출한 후, 냉각시켜 100~200㎛ 두께의 리튬금속-무기물 복합체 리본을 제조하는 제 2 단계; 상기 리튬금속-무기물 복합체 리본을 압연하여 리튬금속-무기물 복합체 박막을 제조하는 제 3 단계; 및 음극의 표면에 상기 리튬금속-무기물 복합체 박막을 올려 리튬금속-무기물 복합층을 형성하는 제 4 단계;를 포함하는 음극의 전리튬화 방법이다. 본 발명은 리튬금속-무기물 복합 박막을 음극에 접합하기 때문에, 리튬이 대기에 노출되는 시간을 최소화하여, 종래 리튬금속-무기물 혼합물을 도포함에 있어, 리튬금속의 높은 반응성으로 인해 혼합물 슬러리를 도포하는 과정에서 리튬이 변질되는 문제를 개선한 효과가 있다. 본 발명에서 제공하는 전리튬화 방법을 통해 제조된 이차전지용 음극은 초기 비가역성이 개선된 특성을 가지며, 이러한 이차전지용 음극을 이용하여 제조한 이차전지는 우수한 충방전 효율을 가진다.
PCT/KR2018/008817 2017-08-10 2018-08-03 리튬금속과 무기물 복합박막 제조방법 및 이를 이용한 리튬 이차전지 음극의 전리튬화 방법 WO2019031766A2 (ko)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP18843393.2A EP3605670B1 (en) 2017-08-10 2018-08-03 Method for forming lithium metal and inorganic material composite thin film and method for pre-lithiation of negative electrode for lithium secondary battery by using same
CN201880024013.9A CN110574191B (zh) 2017-08-10 2018-08-03 形成锂金属和无机材料复合薄膜的方法、以及使用该方法对锂二次电池的负极预锂化的方法
PL18843393T PL3605670T3 (pl) 2017-08-10 2018-08-03 Sposób tworzenia cienkiej warstewki kompozytu litu metalicznego i substancji nieorganicznej i sposób wstępnego litowania elektrody ujemnej dla akumulatora litowego z jej użyciem
JP2019557572A JP7045575B2 (ja) 2017-08-10 2018-08-03 リチウム金属と無機物複合薄膜の製造方法及びこれを用いたリチウム二次電池負極の前リチウム化方法
US16/606,458 US11316145B2 (en) 2017-08-10 2018-08-03 Method for forming lithium metal and inorganic material composite thin film and method for pre-lithiation of negative electrode for lithium secondary battery by using same

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2017-0101380 2017-08-10
KR20170101380 2017-08-10
KR10-2018-0087814 2018-07-27
KR1020180087814A KR102327179B1 (ko) 2017-08-10 2018-07-27 리튬금속과 무기물 복합박막 제조방법 및 이를 이용한 리튬 이차전지 음극의 전리튬화 방법

Publications (2)

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WO2019031766A2 WO2019031766A2 (ko) 2019-02-14
WO2019031766A3 true WO2019031766A3 (ko) 2019-04-25

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114747045A (zh) * 2019-10-15 2022-07-12 汉阳大学校Erica产学协力团 负极电极、利用电解沉积制备其的方法及其制备装置
CN113809327A (zh) * 2020-06-11 2021-12-17 恒大新能源技术(深圳)有限公司 复合负极极片、固态电池及复合负极极片的制备方法
JP2022049787A (ja) 2020-09-17 2022-03-30 本田技研工業株式会社 リチウム二次電池用電解質媒体及びリチウム二次電池
CN115939422A (zh) * 2022-10-10 2023-04-07 福州大学 一种用于燃料电池负极的铈铝有机框架修饰的生物质碳复合材料的制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05251090A (ja) * 1992-03-04 1993-09-28 Matsushita Electric Ind Co Ltd 熱電池用負極の製造方法およびその負極を用いた積層形熱電池
KR20010111831A (ko) * 2000-06-13 2001-12-20 김순택 리튬-황 전지
WO2012061191A2 (en) * 2010-11-02 2012-05-10 Envia Systems, Inc. Lithium ion batteries with supplemental lithium
US20150357628A1 (en) * 2014-06-05 2015-12-10 Ningde Amperex Technology Limited Lithium-rich electrode plate of lithium-ion battery and preparation method thereof
KR20170067326A (ko) * 2015-12-08 2017-06-16 주식회사 엘지화학 리튬 또는 리튬 화합물 코팅층이 도포되어 있는 분리막을 포함하는 전극조립체 및 이를 제조하는 방법

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170101380A (ko) 2016-02-27 2017-09-06 디에스인터내셔널(주) 접이식 포장박스
KR20180087814A (ko) 2017-01-25 2018-08-02 한국과학기술연구원 위치 측정 방법 및 시스템

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05251090A (ja) * 1992-03-04 1993-09-28 Matsushita Electric Ind Co Ltd 熱電池用負極の製造方法およびその負極を用いた積層形熱電池
KR20010111831A (ko) * 2000-06-13 2001-12-20 김순택 리튬-황 전지
WO2012061191A2 (en) * 2010-11-02 2012-05-10 Envia Systems, Inc. Lithium ion batteries with supplemental lithium
US20150357628A1 (en) * 2014-06-05 2015-12-10 Ningde Amperex Technology Limited Lithium-rich electrode plate of lithium-ion battery and preparation method thereof
KR20170067326A (ko) * 2015-12-08 2017-06-16 주식회사 엘지화학 리튬 또는 리튬 화합물 코팅층이 도포되어 있는 분리막을 포함하는 전극조립체 및 이를 제조하는 방법

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