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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2009, Vol. 10 Issue (3): 418-422    DOI: 10.1631/jzus.A0820658
Energy and Chemical Engineering     
Experimental research on charging characteristics of a pressure-controlled VRLA battery in high-temperature environments
Hua ZHU, Jin-jun TAN, Zhang-lu XU, Ji-sen XU
Institute of Thermal Science and Power Systems, Zhejiang University, Hangzhou 310027, China
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Abstract  Valve-regulated-lead-acid (VRLA) battery charging performed in high-temperature environments is extremely risky under overcharge conditions, and may lead to a subsequent thermal runaway. A new pressure-controlled charging method was adopted and the charging characteristics of the pressure-controlled VRLA battery in high-temperature environments were experimentally studied. The concept was tested in a large temperature gradient to obtain more details about the effects of users’ accustomed charging and discharging modes on battery capacity. The premature capacity loss (PCL) phenomenon under high temperature exposure was analyzed. The results showed that the capacity loss could be recovered by charging using a large current.

Key words： Valve-regulated-lead-acid (VRLA) battery      Pressure-controlled charging method      High-temperature environments      Charging and discharging characteristics     
Received: 27 April 2008     
CLC:  TK1  
  TK02  
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Hua ZHU
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Ji-sen XU
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Hua ZHU, Jin-jun TAN, Zhang-lu XU, Ji-sen XU. Experimental research on charging characteristics of a pressure-controlled VRLA battery in high-temperature environments. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2009, 10(3): 418-422.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0820658     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2009/V10/I3/418

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