本研究以三价铁盐作为铁源,以柠檬酸作为还原剂和络合剂,运用Sol-gel法合成了锂离子电池正极材料LiFe1-xNixPO4/C(x=0,0.025,0.050,0.075,0.100),采用流延法制备了正极片,并组装了扣式电池.通过X射线衍射(XRD)、扫描电子显微观察(SEM)、拉曼光谱(Raman spectroscopy)等手段对粉末进行了表征,并研究了不同煅烧温度、Ni2+的掺量对材料充放电性能、循环性能和循环伏安特性的影响.
参考文献
[1] | Padhi AK.;Goodenough JB.;Nanjundaswamy KS. .PHOSPHO-OLIVINES AS POSITIVE-ELECTRODE MATERIALS FOR RECHARGEABLE LITHIUM BATTERIES[J].Journal of the Electrochemical Society,1997(4):1188-1194. |
[2] | Prosini PP.;Lisi M.;Zane D.;Pasquali M. .Determination of the chemical diffusion coefficient of lithium in LiFePO4[J].Solid state ionics,2002(1/2):45-51. |
[3] | 俞琛捷,莫祥银,康彩荣,倪聪,丁毅.锂离子电池磷酸铁锂正极材料的制备及改性研究进展[J].材料科学与工程学报,2011(03):468-470,454. |
[4] | 李昕洋,张培新,罗仲宽,黄小倩,李梅,刘剑洪,许启明,任祥忠.化学沉淀法制备锂离子电池正极材料LiFePO4[J].材料科学与工程学报,2008(03):385-389,421. |
[5] | 魏晓,韩高荣.锂离子电池正极材料研究进展以及水热法制备LiCoO2超细粉体[J].材料科学与工程学报,2006(01):118-123. |
[6] | M. Prabu;S. Selvasekarapandian;A. R. Kulkarni .Structural, dielectric, and conductivity studies of yttrium-doped LiNiPO4 cathode materials[J].Ionics,2011(3):201-207. |
[7] | C. M. Julien;A. Mauger;K. Zaghib .Structural and electronic properties of the LiNiPO4 orthophosphate[J].Ionics,2012(7):625-633. |
[8] | Rita Baddour-Hadjean;Jean-Pierre Pereira-Ramos .Raman Microspectrometry Applied to the Study of Electrode Materials for Lithium Batteries[J].Chemical Reviews,2010(3):1278-1319. |
[9] | R. Kostecki;B. Schnyder;D. Alliata;X. Song;K. Kinoshita;R. Kotz .Surface studies of carbon films from pyrolyzed photoresist[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2001(1/2):36-43. |
[10] | Marca M. Doeff;Yaoqin HU;Frank McLarnon .Effect of Surface Carbon Structure on the Electrochemical Performance of LiFePO_4[J].Electrochemical and solid-state letters,2003(10):A207-A209. |
[11] | Nakamura T;Miwa Y;Tabuchi M;Yamada Y .Structural and surface modifications of LiFePO4 olivine particles and their electrochemical properties[J].Journal of the Electrochemical Society,2006(6):A1108-A1114. |
[12] | A. Vadivel Muragan;T. Muraliganth;A. Manthiram .Comparison of Microwave Assisted Solvothermal and Hydrothermal Syntheses of LiFePO4/C Nanocomposite Cathodes for Lithium Ion Batteries[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2008(37):14665-14671. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%