Zhenyu Xiao, Jiajun Zhu, Wulin Yang, Lingping Zhou, Licai Fu
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引用次数: 0
摘要
氟离子电池理论能量密度高,有望成为新一代储能系统。然而,在室温下,氟离子电池的比率特性较差。因此,我们对该技术在高温一次放电中的潜在应用进行了研究。我们报告了一种基于氟离子传导的新型热电池,它能在高温下以大电流放电。通过组装 NiF2|NaF-KF-CsF@MgO|La热电池,NaF-KF-CsF 电解质的离子电导率在 550°C 时达到 2.47 × 10-1 S cm-1。与已报道的氟离子电池系统相比,该电池具有更高的比率特性,比容量可达 60 mAh g-1(@1.35 V,200 mA cm-2)。虽然这些结果很有希望,但还不足以满足热电池的实际应用场景。因此,这是一次将氟离子传导应用于热电池领域的初步尝试。
A novel thermal battery based on fluoride ion conduction
Fluoride ion battery was expected to become a new generation of energy storage system because of its high theoretical energy density. However, at room temperature, the ratio property of fluoride ion batteries was poor. Consequently, we conducted an investigation into the potential application of this technology in high-temperature primary discharge. A novel thermal battery based on fluoride ion conduction was reported, which can discharge with a large current at high temperature. Assemblying NiF2|NaF-KF-CsF@MgO|La thermal battery, the ionic conductivity of NaF-KF-CsF electrolyte run up to 2.47 × 10-1 S cm-1 at 550°C. The battery has much higher ratio property than reported fluoride ion battery systems and the specific capacity can reach 60 mAh g-1(@1.35 V, 200 mA cm-2). Although the results are promising, they are not yet sufficient to meet the practical application scenarios of thermal batteries. Hence, this was a preliminary attempt to apply fluorine ion conduction to the field of thermal battery.
期刊介绍:
Electrochimica Acta is an international journal. It is intended for the publication of both original work and reviews in the field of electrochemistry. Electrochemistry should be interpreted to mean any of the research fields covered by the Divisions of the International Society of Electrochemistry listed below, as well as emerging scientific domains covered by ISE New Topics Committee.