ADDITIVE, CONTAINING ALUMINUM SILICATE, FOR SECONDARY BATTERY ELECTROLYTE AND PREPARATION METHOD THEREFOR

The present invention relates to an additive, containing aluminum silicate, for a secondary battery electrolyte and a preparation method therefor and, more specifically, to an additive, containing aluminum silicate, for a secondary battery electrolyte and a preparation method therefor, wherein the additive can reversibly improve the absorption and release of lithium ions in a secondary battery electrode and promote the formation of a solid-electrolyte interphase (SEI), while not affecting charge and discharge capacity by suppressing electrochemical side reactions. La présente invention concerne un additif, contenant du silicate d'aluminium, pour électrolyte d'accumulateur et son procédé de préparation, et plus précisément un additif, contenant du silicate d'aluminium, pour électrolyte d'accumulateur et son procédé de préparation, l'additif pouvant améliorer de manière réversible l'absorption et la libération d'ions lithium dans une électrode d'accumulateur et favoriser la formation d'une interphase solide-électrolyte (SEI), sans nuire à la capacité de charge et de décharge, par suppression de réactions parallèles électrochimiques. 본 발명은 알루미늄 실리케이트(aluminum silicate)를 포함하는 이차전지 전해질용 첨가제 및 이의 제조방법에 관한 것으로, 보다 구체적으로 전기화학적 부반응을 억제하여 충방전용량에 영향을 미치지 않으면서, 이차전지 전극에서 리튬이온의 흡수 및 방출을 가역적으로 개선시키고, 고체-전해질 중간상(Solid Electrolyte Interphase, SEI) 형성을 촉진할 수 있는 알루미늄 실리케이트를 포함하는 이차전지 전해질용 첨가제 및 이의 제조방법에 관한 것이다