材料科学
钛酸锂
煅烧
锂(药物)
碳酸锂
钛
钛酸酯
二氧化钛
相(物质)
化学工程
碳纤维
分析化学(期刊)
矿物学
无机化学
核化学
锂离子电池
电池(电)
陶瓷
冶金
复合材料
催化作用
色谱法
有机化学
离子
化学
复合数
离子键合
功率(物理)
内分泌学
工程类
物理
医学
量子力学
作者
Guangqiang Ma,Min Cheng
标识
DOI:10.1080/10584587.2020.1728719
摘要
In this paper, Li4Ti5O12 was prepared by high temperature solid-state method using titanium dioxide as titanium source and lithium carbonate as lithium source. The effects of lithium-titanium molar ratio, calcination temperature and sucrose as carbon source on the preparation of Li4Ti5O12 were studied. The experimental results show that when the molar ratio of lithium to titanium is 0.95 and the calcination temperature is 800 °C, pure phase Li4Ti5O12 can be prepared. The addition of sucrose carbon source effectively reduces the agglomeration of the product, making the particle size of the prepared lithium titanate sample about 1–2 microns. The first full specific capacity of pure lithium titanate is 160 mAh.g-1 at 0.1 C ratio and 123 mAh/g at 1 C ratio. After adding sucrose, the first charge-discharge specific capacity of lithium titanate was 168 mAh/g at 0.1 C ratio, 150 mAh/g at 1 C ratio, and the high specific capacity of lithium titanate with changed properties increased significantly after adding sucrose.
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