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化学学报
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化学学报 ›› 2011, Vol. 69 ›› Issue (17): 1987-1990. 上一篇    下一篇

研究论文

磷酸铁锂电池的热效应研究

杨东1，席陈彬1，王凇旸1，胡建华*,1，杨彪2，孙耀杰*,2   

  1. (1聚合物分子工程教育部重点实验室 复旦大学高分子科学系 上海 200433)
    (2复旦大学信息科学学院光源与照明工程系 上海 200433)
  • 投稿日期:2011-05-04 修回日期:2011-05-15 发布日期:2011-05-22
  • 通讯作者: 胡建华 E-mail:hujh@fudan.edu.cn
  • 基金资助:

    国家自然科学基金;上海科技创新行动计划;上海市自然科学基金

Study on the Thermal Effect of LiFePO4 Lithium Ion Battery

Yang Dong1 Xi Chenbin1 Wang Songyang1, Hu Jianhua*,1 Yang Biao2 Sun Yaojie*,2   

  1. (1 Key Laboratory of Molecular Engineering of Polymers Ministry of Education, Department of Macromolecular Science, Fudan University, Shanghai 200433)
    (2 School of Information Science and Technology, Department of Light Sources and Illuminating Engineering, Fudan University, Shanghai 200433)
  • Received:2011-05-04 Revised:2011-05-15 Published:2011-05-22
  • Contact: Jian-Hua HU E-mail:hujh@fudan.edu.cn

PDF

2201

被引次数

9 | 5

以磷酸铁锂为正极材料, 石墨为负极材料, 制备了1865型磷酸铁锂电池, 研究了该电池在绝热、隔热和自然散热条件下, 不同大小电流充放电过程的热效应. 研究结果表明, 磷酸铁锂电池充放电过程中所放出的热量主要来源于不可逆发热, 即电子、离子在传导过程中克服电池内部阻力所产生的热量. 发热量与电流呈线性关系, 随着电流的增大而增大. 这些结果为磷酸铁锂电池在电动汽车方面的应用打下基础.

关键词: 磷酸铁锂, 热效应, 锂离子电池, 动力电池

1865 type of LiFePO4 lithium ion battery have been prepared, using LiFePO4 as cathode material and graphite as anode material. The thermal effect of the battery was investigated at different charging/discharging current and environment. The results showed that the heat mainly came from the irreversible thermal effect, i.e. the heat derived from internal resistance of the cell. The heat was linear with the current, and increased with the increase of current. These results provided the foundation of LiFePO4 lithium ion battery applying to electric car.

Key words: LiFePO4, thermal effect, lithium ion battery, power cell