公开(公告)号：KR1020040080537A

公开(公告)日：2004-09-20

申请号：KR1020030015372

申请日：2003-03-12

Applicant: 대한민국(전남대학교총장)

Inventor： 최용국 ,  김우성 ,  정광일 ,  박동원 ,  손동언

IPC: H01M4/04

Abstract: PURPOSE: A negative electrode for a lithium secondary battery and its preparation method are provided, to inhibit the change of volume generated in the charge/discharge of a battery by obtaining particles having uniform and dense particle size, thereby preventing capacity loss and improving charge/discharge cycle property. CONSTITUTION: The negative electrode comprises an ultrasonic-treated tin oxide powder. The method comprises the steps of ultrasonic-treating a tin oxide powder to allow the particle size to be uniform and dense; and preparing an electrode by using the ultrasonic-treated tin oxide powder. Preferably the tin oxide is SnO2.

Abstract translation: 目的：提供一种用于锂二次电池的负极及其制备方法，通过获得具有均匀且致密粒径的颗粒来抑制电池充电/放电中产生的体积变化，从而防止容量损失并改善电荷/ 放电循环特性。 构成：负极包含超声处理的氧化锡粉末。 该方法包括以下步骤：对氧化锡粉末进行超声波处理以使粒径均匀且致密; 并用超声波处理的氧化锡粉末制备电极。 氧化锡优选为SnO 2。