Mixtures of TiO2路0.2H2O and LiFePO4 as Li-ion battery cathode materials
文献类型：会议论文
| 作者 | Hong, Zijian1; Tang, Zilong1; Xu, Yuxing2; Hong, Ye1; Tan, Ao1; Zhang, Zhongtai1 |
| 出版日期 | 1905-07-04 |
| 会议日期 | November 4, 2011 - November 7, 2011 |
| 会议地点 | Xiamen, China |
| 关键词 | Titanium dioxide - Mixtures - Iron compounds - Lithium compounds - Cathodes |
| 卷号 | 512-515 |
| DOI | 10.4028/www.scientific.net/KEM.512-515.1592 |
| 页码 | 1592-1597 |
| 英文摘要 | Mixtures of TiO2路0.2H2O (HTO) and LiFePO 4 were prepared via three main composite methods: 2-2 series model, 2-2 parallel model and 3-3 model. HTO has been reported to exhibit high specific capacity (鈭?00 mAh/g at 1 C) as well as excellent cycle property, whereas its plateau voltage is too low (about 1.7 V vs. Li) as a cathode material. LiFePO4 is a promising cathode material for its high voltage plateau (about 3.4 V vs. Li), low cost and high specific capacity (鈭?50 mAh/g at 1 C). However, because of its low conductivity, the rate property as well as cycle property is limited. The mixtures of HTO and LiFePO4 were considered to combine the advantages of both materials. By comparison, the 2-2 parallel model excelled in both rate property and cycle property than two other models. Its specific capacity can reach as high as 220 mAh/g with a high specific energy of 450 Wh/Kg at 0.1 C. Even after cycled 200 times at 2 C, the capacity can still be higher than 100 mAh/g. CV measurements and a combined constant current and constant voltage tests supported a two plateaus process for 2-2 parallel model. The charge-discharge voltage gap increased for the 2-2 parallel composite, which was supposed to be related to the interface effect. In general, the specific energy of the 2-2 parallel composite was much higher than HTO while the specific capacity as well as cycle property of the 2-2 parallel composite was much better than LiFePO4 as cathode material. 漏 (2012) Trans Tech Publications. |
| 资助机构 | Trans Tech Publications Ltd |
| 会议录 | 7th China International Conference on High-Performance Ceramics, CICC-7
 |
| 学科主题 | Lithium-ion Batteries |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/59465]  |
| 作者单位 | 1.State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China 2.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China |
| 推荐引用方式 GB/T 7714 | Hong, Zijian,Tang, Zilong,Xu, Yuxing,等. Mixtures of TiO2路0.2H2O and LiFePO4 as Li-ion battery cathode materials[C]. 见:. Xiamen, China. November 4, 2011 - November 7, 2011. |
入库方式： OAI收割
来源：过程工程研究所
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