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- W2577217834 abstract "本文以Li2CO3，FeC2O4·2H2O和NH4H2PO4为原料，采用传统的固相法合成锂离子电池正极材料LiFePO4/C，为了提高电化学性能，加入乙二醇进行表面改性。利用X射线衍射仪(XRD)，扫描电子显微镜(SEM)对材料晶体结构、表观形貌和化学成分进行表征，采用恒电流充放电测试技术对其电化学性能进行测定，并且研究了乙二醇对LiFePO4/C晶体生长方向的影响。结果表明经乙二醇改性的LiFePO4/C颗粒呈板状堆积，在0.1 C、0.5 C、1.0 C的电流密度下充放电平台稳定，并且具有较好的循环效率。 Lithium-ion battery cathode material LiFePO4/C was synthesized by Li2CO3, FeC2O4·2H2O, NH4H2PO4 ina traditional way, and ethylene glycol was used as surfactant for advancing electrochemical performance. The crystalline structure, morphology and chemical composition of LiFePO4/C particles were characterized by X-ray diffraction, scan- ning electron microscopy and electrochemical performance was characterized by constant-current charge-discharge test technique, respectively. In addition, the effects of ethylene glycol on the crystal growth direction were discussed in this paper. The results show that the grains of LiFePO4/C which are synthesized with ethylene glycol-assisted present plate- type accumulation. The charge-discharge potential flats present smooth in different current density (0.1C,0.5Cand1.0C) and the cycle abilityis stable." @default.
- W2577217834 created "2017-01-26" @default.
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- W2577217834 date "2013-01-01" @default.
- W2577217834 modified "2023-09-25" @default.
- W2577217834 title "Ethylene Glycol-Assisted Synthesis of LiFePO<sub>4</sub> by Traditional Solid-State Method" @default.
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- W2577217834 doi "https://doi.org/10.12677/ms.2013.35041" @default.
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