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A novel synthesis and characterization of LiFePO 4 and LiFePO 4 / C as a cathode material for lithium-ion battery
| Content Provider | Semantic Scholar |
|---|---|
| Author | Miao, Cui Bai, Peifeng Jiang, Qianqian Sun, Shuqing Wang, Xingyao |
| Copyright Year | 2013 |
| Abstract | A novel hydrothermal stripping technique is developed to synthesize pure LiFePO4 and LiFePO4/C cathode materials. The pure sample is directly synthesized by the cation exchange between the organic phase which is prepared with FeSO4$7H2O and naphthenic acid, and aqueous phase prepared with H3PO4 and LiOH. SEM exhibits that the primary sizes of the well-distributed LiFePO4 and LiFePO4/C particles are about 150 nm and 100 nm in diameter, respectively. TEM indicates the LiFePO4/C is uniformly coated with a carbon layer about 2.7 nm in size. The as-prepared LiFePO4 exhibits a high initial discharge capacity of 135.5 mAh g 1 at 0.1 C, and the LiFePO4/C composite sintered at 650 C for 4 h exhibits the best electrode properties with discharge capacities of 151.7, 154.8, 149.8 and 139.1 mAh g 1 at 0.1 C, 0.2 C, 0.5 C and 1.0 C rates, respectively. In addition, the LiFePO4/C also shows excellent capacity retention and cycle performances. 2013 Elsevier B.V. All rights reserved. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://chglib.icp.ac.ru/subjex/2014/pdf03/JPowerSources-2014-246()232.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
