用于锂二次电池之阳极活性材料，包含彼之锂二次电池，及其制备方法;ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY COMPRISING THE SAME, AND METHOD OF PREPARING THE SAME

摘要

本申请案揭示内容系关于用于锂二次电池的阳极活性材料、包括该阳极活性材料的锂二次电池，以及制备该阳极活性材料的方法。本申请案揭示内容的一具体实例系提供用于锂二次电池的阳极活性材料，其包括SiOx-羧基甲基纤维素(CMC)-奈米碳管(CNT)之复合物，其中CNT系经由CMC而结合至SiOx(0<x1)；以及，以碳为基础的材料。再者，本申请案揭示内容的另一具体实例系提供制备用于锂二次电池之阳极活性材料的方法，其包括用奈米碳管(CNT)及羧基甲基纤维素(CMC)对SiOx(0<x1)进行表面处理，以形成SiOx-CMC-CNT之复合物；以及，混合该SiOx-CMC-CNT之复合物与以碳为基础的材料。相较于具有仅用奈米碳管来表面处理的SiO者，本申请案揭示内容的阳极活性材料与锂二次电池提供增进的电池容量以及改良的寿命特性。;x1) through CMC; and a carbon-based material. Also, another embodiment of the present disclosure provides a method of preparing an anode active material for a lithium secondary battery, comprising bringing SiOx(0<x1) into surface-treatment with carbon nanotube (CNT) and carboxylmethyl cellulose (CMC) to form a composite of SiOx-CMC-CNT; and mixing the composite of SiOx-CMC-CNT with a carbon-based material. The anode active material and the lithium secondary battery of the present disclosure provide enhanced battery capacity, as well as improved life characteristics as compared with those having SiO surface-treated with only carbon nanotube.