Characterization of Li-Mg-B alloy/LiNO₃-KNO₃-KNO₂-Ca(NO₃)₂/MnO₂ system for potential use as geothermal and oil/gas borehole battery

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• 作者：Yongqiang Niu ; Zhu Wu ; Junlin Du ; Haiqin Qu
• 关键词：Li&ndash ; Mg&ndash ; B alloy ; Quaternary eutectic electrolyte ; Discharge characteristics ; Borehole battery
• 刊名：Solid State Ionics
• 出版年：1 February, 2014
• 年：2014
• 卷：255
• 期：Complete
• 页码：80-83
• 全文大小：651 K

文摘

A novel quaternary eutectic, LiNO₃-KNO₃-KNO₂-Ca(NO₃)₂, is developed for the potential use in geothermal and oil/gas borehole battery. The chemical compatibility of the material is examined by the simultaneous thermogravimetric analysis and differential thermal analysis. The MnO₂ cathodes present in single cells with Li-Mg-B alloy anodes are characterized using the eutectic electrolyte at 150-300 掳C and a current density of 10-30 mA cm^鈭?#xA0;2. The discharge capacity of the battery is not affected by discharge rate; however, it is significantly affected by the operating temperature.