APPARATUS FOR PRE-LITHIATION OF NEGATIVE ELECTRODE AND METHOD FOR PRE-LITHIATION OF NEGATIVE ELECTRODE

An apparatus for the pre-lithiation of a negative electrode comprises: a pre-lithiation reactor in which a pre-lithiation solution is accommodated; a high-pressure diaphragm that has the shape of a chamber surrounding the outside of the pre-lithiation reactor, and maintains an internal air pressure...

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Main Authors CHAE, Oh Byong, JEON, Seo Young, KIM, Ye Ri, HWANG, Seung Hae, LEE, Su Yeon
Format Patent
LanguageEnglish
French
Korean
Published 24.02.2022
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:An apparatus for the pre-lithiation of a negative electrode comprises: a pre-lithiation reactor in which a pre-lithiation solution is accommodated; a high-pressure diaphragm that has the shape of a chamber surrounding the outside of the pre-lithiation reactor, and maintains an internal air pressure exceeding atmospheric pressure; at least one lithium metal counter electrode disposed in the pre-lithiation solution so as to be facing and spaced a predetermined distance from a negative electrode introduced into the pre-lithiation solution; and a charging/discharging unit connected by a circuit to the negative electrode and the lithium metal counter electrode. L'invention concerne un appareil destiné à la pré-lithiation d'une électrode négative. Ledit appareil comprend : un réacteur de pré-lithiation dans lequel une solution de pré-lithiation est reçue ; un diaphragme haute pression qui présente la forme d'une chambre entourant l'extérieur du réacteur de pré-lithiation, et maintient une pression d'air interne supérieure à la pression atmosphérique ; au moins une contre-électrode métallique au lithium disposée dans la solution de pré-lithiation de manière à être en regard et espacée d'une distance prédéterminée d'une électrode négative introduite dans la solution de pré-lithiation ; et une unité de charge/décharge connectée par un circuit à l'électrode négative et à la contre-électrode métallique au lithium. 본 발명은 음극의 전리튬화 장치 및 음극의 전리튬화 방법에 관한 것으로, 상기 음극의 전리튬화 장치는 내부에 전리튬화 용액이 수용되는 전리튬화 반응조; 상기 전리튬화 반응조의 외부를 둘러싸는 챔버 형상이며, 대기압을 초과하는 내부 기압이 유지되는 고압 격막; 상기 전리튬화 용액 내에 배치되되, 상기 전리튬화 용액 내로 투입되는 음극과 소정 간격 이격된 상태로 대면하도록 배치되는 적어도 한 개의 리튬 금속 대극; 및 상기 음극 및 리튬 금속 대극에 회로적으로 연결되는 충방전부를 포함한다.
Bibliography:Application Number: WO2021KR10786