Reaction mechanism and electrochemical performance of lifepo4/c cathode materials synthesized by carbothermal method
文献类型：期刊论文
| 作者 | Yu, Feng1,2; Zhang, Jingjie1; Yang, Yanfeng1; Song, Guangzhi1 |
| 刊名 | Electrochimica acta
 |
| 出版日期 | 2009-12-01 |
| 卷号 | 54期号:28页码:7389-7395 |
| 关键词 | Lifepo4 Fe2p Cathode material Lithium ion battery Spray drying and carbothermal method |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/j.electacta.2009.07.071 |
| 通讯作者 | Zhang, jingjie(jjzhang@mail.ipc.ac.cn) |
| 英文摘要 | Spray drying and carbothermal method was employed to investigate reaction mechanism and electrochemical performance of lifepo4/c cathode by using different carbon sources. micro-structural variations of lifepo4/c precursors using different carbon sources were studied by thermo-gravimetric (tg)/differential thermal analysis (dta). the lifepo4/c samples were characterized by x-ray diffraction (xrd) and fourier transform infrared (ftir) absorption spectroscopy. the results indicated that the crystallization temperature of lifepo4 was 453 degrees c, while the transform temperature was 539 degrees c from li3fe2(po4)(3) to lifepo4. at 840 degrees c, lifepo4/c sample with an excess of impurity phase fe2p gave much poorer electrochemical performance. the severe decomposition of lifepo4/c happened at 938 degrees c and generated impurity phases li4p2o7 and fe2p. the clear discharge platform of fe2p emerged at around 2.2v. (c) 2009 elsevier ltd. all rights reserved. |
| WOS关键词 | RECHARGEABLE LITHIUM BATTERIES ; CARBON-SOURCES ; ELECTRODE MATERIALS ; LOCAL-STRUCTURE ; OLIVINE-LIKE ; IRON ; COMPOSITES ; PHOSPHATES ; MICROSPHERE ; TEMPERATURE |
| WOS研究方向 | Electrochemistry |
| WOS类目 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000271151600034 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2394007 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhang, Jingjie |
| 作者单位 | 1.Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Feng,Zhang, Jingjie,Yang, Yanfeng,et al. Reaction mechanism and electrochemical performance of lifepo4/c cathode materials synthesized by carbothermal method[J]. Electrochimica acta,2009,54(28):7389-7395. |
| APA | Yu, Feng,Zhang, Jingjie,Yang, Yanfeng,&Song, Guangzhi.(2009).Reaction mechanism and electrochemical performance of lifepo4/c cathode materials synthesized by carbothermal method.Electrochimica acta,54(28),7389-7395. |
| MLA | Yu, Feng,et al."Reaction mechanism and electrochemical performance of lifepo4/c cathode materials synthesized by carbothermal method".Electrochimica acta 54.28(2009):7389-7395. |
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来源：中国科学院大学
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