Influence of additives on the thermal behavior of nickel/metal hydride battery

被引：6
作者：
Yang, Kai [1 ,2 ]
An, Jin Jing [1 ]
Chen, Shi [1 ]
机构：
[1] Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China
[2] China Elect Power Res Inst, Dept Elect Engn, Beijing 100192, Peoples R China
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2010年 / 102卷 / 03期
关键词：
Ni/MH battery; Ytterbium oxide; Super absorbent polymer; Thermal model; CHARGE;
D O I：
10.1007/s10973-010-0801-1
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This study discusses the thermal behavior of the 6.5 Ah cylinder Ni/MH hydride battery with 0.5 wt% ytterbium oxide (Yb2O3) in nickel electrode and 1.0 wt% super absorbent polymer (SAP) in hydrogen-storage alloy (MH) electrode during charging to 150% of its rating capacity. Quantity of heat and heat generation rate of the battery during charging are studied by quartz frequency microcalorimeter. Heat generation curve is fitted into a function, and heat transport equation is solved. Using measured data, the internal temperature profiles at the terminal moment of charging at 1C, 3C, and 5C are simulated by FEM. Influence of Yb2O3 and SAP on the thermal behavior of Ni/MH battery is examined by the two-dimensional thermal model. Results show that addition of Yb2O3 and SAP can achieve substantial improvement for thermal behavior of Ni/MH battery at 1C,3C, and 5C charging.
引用
收藏
页码：953 / 959
页数：7
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