摘要
通过高温烧结制备了热电池的正极材料Cu3V2O8（CVO）。采用粉末压片工艺制备单体电池,在200-325℃测试电池的放电性能。结果表明,以10 mA/cm^2放电时,单体电池有高且平稳的电压平台。提高温度可增大电池放电电流,可实现100 mA/cm^2电流密度放电。在300℃时对单体电池进行200 mA/cm^2脉冲放电,结果表明,该热电池可以很好地进行脉冲放电,且脉冲放电完成后,基本没有引起电压下降。该热电池有高电位大容量的优点,并具有小电流长时间放电、大电流短时间放电和大电流脉冲放电的特点,有望用于地热和石油天然气勘探设备中。
The Cu3V2O8 （CVO） cathode was synthesized in solid-state reaction. The single cell was prepared by pressed-powder process and tested at a temperature range of 200-380℃. The results show that the single cell has a high and steady voltage plateau when discharged at 10 mA/cm^2. The cell delivers higher current density at higher temperatures, and can achieve a current density of 100 mNcm^2. When tested at 200 mNcm^2 pulse current density at 300℃, the cell functions well, the voltage only drop a little after the pulses. With the advantages of high voltage, high capacity and pulse discharge performance, the cell is expected to be well suited for borehole equipments in geothermal and oil/gas.
出处
《电源技术》
CAS
CSCD
北大核心
2015年第7期1479-1481,共3页
Chinese Journal of Power Sources
关键词
tm热电池
油/气勘探
硝酸盐电解质
放电性能
thermal batteries
oil/gas borehole
nitrate electrolyte
discharge performance
