APPARATUS FOR PRE-LITHIATION OF ANODE AND METHOD FOR PRE-LITHIATION OF ANODE

• Main Authors: CHAE, Oh Byong, JEON, Seo Young, KIM, Ye Ri, HWANG, Seung Hae
• Format: Patent
• Language: English; French; Korean
• Published: 14.04.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention relates to an apparatus and a method for pre-lithiation of an anode, the apparatus for pre-lithiation comprising: a pre-lithiation reaction bath which is sequentially divided into an impregnation section, a pre-lithiation section, and an aging section and accommodates therein a pre-lithiation solution through which an anode structure is driven; an anode roll which is disposed outside the pre-lithiation solution and on which the pre-driving anode structure is wound; a lithium metal counter electrode which is disposed in the pre-lithiation solution of the pre-lithiation section and is apart from the anode structure at a predetermined interval so as to face the anode structure driving in the pre-lithiation solution; and a charge and discharge unit connected to the anode structure and the lithium metal counter electrode, wherein the interval distance between the lithium metal counter electrode and the anode structure is 7 to 15 mm. La présente invention concerne un appareil et un procédé de pré-lithiation d'anode, le dispositif de pré-lithiation comprenant : une cuve de réaction de pré-lithiation qui est divisée de manière séquentielle en une section d'imprégnation, une section de pré-lithiation et une section de vieillissement, et qui contient une solution de pré-lithiation dans laquelle une structure d'anode est entraînée ; un rouleau d'anode qui est disposé à l'extérieur de la solution de pré-lithiation, et sur lequel la structure d'anode de pré-entraînement est enroulée ; une contre-électrode métallique au lithium qui est disposée dans la solution de pré-lithiation de la section de pré-lithiation, et qui est espacée de la structure d'anode à un intervalle prédéterminé de manière à faire face à la structure d'anode entrainée dans la solution de pré-lithiation ; et une unité de charge et de décharge connectée à la structure d'anode et à la contre-électrode métallique au lithium, la distance de l'intervalle entre la contre-électrode métallique au lithium et la structure d'anode étant de 7 à 15 mm. 본 발명은 음극의 전리튬화 장치 및 방법에 관한 것으로, 상기 전리튬화 장치는, 함침 구간, 전리튬화 구간 및 에이징 구간으로 순차적으로 구획되며, 내부에 음극 구조체가 주행되는 전리튬화 용액이 수용된 전리튬화 반응조; 상기 전리튬화 용액 외부에 배치되고, 주행 전 음극 구조체가 권취되는 음극 롤; 상기 전리튬화 구간의 전리튬화 용액 내에 배치되되, 전리튬화 용액 내에서 주행하는 음극 구조체와 대면하도록 상기 음극 구조체로부터 소정 간격 이격되어 배치되는 리튬 금속 대극; 및 상기 음극 구조체 및 리튬 금속 대극에 연결되는 충방전부를 포함하며, 상기 리튬 금속 대극과 음극 구조체의 이격 거리는 7 지 15mm인 것을 특징으로 한다.