| 影响水合磷酸铁充放电性能的两个因素 |
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| 引用本文： | 甘晖,连锦明,赖忠泉,郑思宁. 影响水合磷酸铁充放电性能的两个因素[J]. 吉林化工学院学报, 2003, 20(4): 43-45,48 |
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| 作者姓名： | 甘晖 连锦明 赖忠泉 郑思宁 |
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| 作者单位： | 福建师范大学,化学与材料学院,福建,福州,350007 |
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| 基金项目： | 福建省教育厅基金资助项目(JB02154;JA02159);福建省自然科学基金资助项目(E0110021) |
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| 摘 要： | 使用液相法制备无定形二水合磷酸铁,并将其在不同的温度下灼烧获得一系列样品.使用X射线粉末衍射仪、透射电子显微镜等表征了样品.测试部分样品的充放电性能.样品T330在0.1 mA/cm2的电流密度下,第二次循环的放电容量达到111.2 mAh/g.灼烧温度较低时,样品脱水不完全;灼烧温度高时,样品由无定形转变为晶体且颗粒尺寸变大;这两个因素都使样品的放电容量下降.
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| 关 键 词： | 磷酸铁 锂电池 容量损失 充放电性能 |
| 文章编号： | 1007-2853(2003)04-0043-03 |
Two influencing factors of charge/discharge performances of ferric phosphate hydrate |
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| GAN Hui,LIAN Jin-ming,LAI Zhong-Quan,ZHEN Si-ning. Two influencing factors of charge/discharge performances of ferric phosphate hydrate[J]. Journal of Jilin Institute of Chemical Technology, 2003, 20(4): 43-45,48 |
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| Authors: | GAN Hui LIAN Jin-ming LAI Zhong-Quan ZHEN Si-ning |
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| Abstract: | Amorphous hydrated iron ( III ) phosphate was synthesized by aqueous method,and it was heated at different temperatures to get a series of samples. The samples were characterized by X-ray powder diffraction,transmission electron microscopy. The charge/discharge performances of some samples were also tested in analogous lithium cell. The capacity of the second discharge cycle of the sample T330 was up to 111.2 mAh/g at a current density of 0. 1mA/cm2.The lower temperature caused the incomplete dehydration;and the higher temperature led to phase change and particle growth;both two factors decreased the capacity of the samples. |
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| Keywords: | iron (Ⅲ) phosphate lithium batteries capacity loss charge/discharge capacity |
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