一种新型LiCo<sub>1-x</sub>Y<sub>x</sub>O<sub>2</sub>电极材料及其制备方法

A novel LiCo<1-x>Y<x>O2 electrode material and a preparing method thereof

Abstract

本发明公开了一种新型LiCo1-xYxO2电池正极材料及其制备方法。它是以LiNO3、Co(NO3)、YCl2和NaOH为原料采用共沉淀法制备工艺,首先把LiNO3、Co(NO3)、YCl2原料按一定比例溶解在乙醇溶液里,再把NaOH溶解在另一份乙醇溶液里,再互相滴加混合,待充分反应后过滤分离出沉淀;将分离出的沉淀置于80℃环境中干燥,干燥后再高温煅烧,最后研磨即得到最终产品。本发明具有量比可精确控制、产物纯度高、煅烧温度较低,合成产物组分均匀、条件容易控制,操作简单等优点。
A novel LiCo<1-x>Y<x>O2 battery cathode material and a preparing method thereof are disclosed. According to the material and the method, LiNO3, Co(NO3)2, YCl2 and NaOH are adopted as raw materials and a coprecipitation-method preparing process is adopted. The preparing method includes: dissolving the LiNO3, the Co(NO3)2 and the YCl2 into an ethanol solution according to a ratio, dissolving the NaOH into another ethanol solution, adding the first mixture dropwise into the second mixture, mixing, filtering after reactions are completed to separate a precipitate, drying the separated precipitate in an environment having a temperature of 80 DEG C, drying, performing high-temperature calcination, and grinding to obtain a final product. The material and the preparing method have advantages of accurately controlled quantity relative ratio, high product purity, low calcination temperature, uniform synthesized product components, easily controlled conditions, simple operation, and the like.

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