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1. WO2019135525 - PRE-LITHIATION METHOD OF ANODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM METAL LAMINATE TO BE USED THEREIN

Publication Number WO/2019/135525
Publication Date 11.07.2019
International Application No. PCT/KR2018/016386
International Filing Date 20.12.2018
IPC
H01M 4/139 2010.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139Processes of manufacture
H01M 4/04 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
04Processes of manufacture in general
H01M 10/0525 2010.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
CPC
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
H01M 4/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
04Processes of manufacture in general
H01M 4/139
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of or comprising active material
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
139Processes of manufacture
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage using batteries
Applicants
  • 주식회사 엘지화학 LG CHEM, LTD. [KR]/[KR]
Inventors
  • 채오병 CHAE, Oh-Byong
  • 송준혁 SONG, Jun-Hyuk
  • 강윤아 KANG, Yoon-Ah
  • 김제영 KIM, Je-Young
  • 우상욱 WOO, Sang-Wook
Agents
  • 특허법인 필앤온지 PHIL & ONZI INT'L PATENT & LAW FIRM
Priority Data
10-2018-000080903.01.2018KR
10-2018-016558419.12.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) PRE-LITHIATION METHOD OF ANODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM METAL LAMINATE TO BE USED THEREIN
(FR) PROCÉDÉ DE PRÉ-LITHIATION D'ANODE POUR BATTERIE RECHARGEABLE AU LITHIUM, ET STRATIFIÉ DE LITHIUM MÉTALLIQUE À UTILISER DANS CELUI-CI
(KO) 리튬이차전지용 음극의 전리튬화 방법 및 이에 사용되는 리튬 메탈 적층체
Abstract
(EN)
According to the present invention, a pre-lithiation method of an anode, and a lithium metal laminate to be used therein are provided, the pre-lithiation method comprising the steps of: preparing a lithium metal laminate comprising i) a lithium metal foil and ii) a buffer layer, which is formed while comprising one or more selected from the group consisting of carbon-based material particles, inorganic compound particles and polymer compound particles and is coated on one surface of the lithium metal foil, wherein the buffer layer has a thickness of 2.5-32.5 μm; manufacturing an anode comprising an anode current collector, and an anode active material layer formed on at least one surface of the anode current collector; and stacking the lithium metal laminate and the anode such that the buffer layer comes into contact with the anode active material layer.
(FR)
La présente invention concerne un procédé de pré-lithiation d'une anode, et un stratifié de lithium métallique à utiliser dans celui-ci, le procédé de pré-lithiation comprenant les étapes consistant à : préparer un stratifié de lithium métallique comprenant i) une feuille de lithium métallique et ii) une couche tampon qui est formée de sorte à comprendre un ou plusieurs éléments choisis dans le groupe constitué par des particules de matériau à base de carbone, des particules de composé inorganique et des particules de composé polymère, et est appliquée sur une surface de la feuille de lithium métallique, la couche tampon ayant une épaisseur de 2,5 à 32,5 µm ; fabriquer une anode comprenant un collecteur de courant d'anode, et une couche de matériau actif d'anode formée sur au moins une surface du collecteur de courant d'anode ; et empiler le stratifié de lithium métallique et l'anode de telle sorte que la couche tampon entre en contact avec la couche de matériau actif d'anode.
(KO)
본 발명에 따르면, 리튬 메탈 포일; 및 ii) 탄소계 물질 입자, 무기화합물 입자, 및 고분자 화합물 입자로 이루어진 군으로부터 선택된 1종 또는 2종 이상을 포함하여 형성되고 리튬 메탈 포일의 일면에 코팅되어 있는 버퍼층;을 포함하고, 상기 버퍼층은 2.5 ㎛ 내지 32.5 ㎛ 범위의 두께를 가지는 것인 리튬 메탈 적층체를 제조하는 단계; 음극 집전체, 및 음극 집전체의 적어도 일면에 형성된 음극 활물질층을 포함하는 음극을 제조하는 단계; 및 상기 버퍼층이 음극 활물질과 접하도록 리튬 메탈 적층체와 음극을 적층시키는 단계;를 포함하는 음극의 전리튬화 방법 및 이에 사용되는 리튬 메탈 적층체가 제공된다.
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