The Thermally Regenerative Liquid‐Metal Cell
The Thermally Regenerative Liquid‐Metal Cell
复制标题
热再生液态金属电池
DOI：
10.1149/1.2425597
复制
发表时间：
1963
影响因子：
3.9
通讯作者：
B. Agruss
中科院分区：
文献类型：
--
作者：
B. Agruss
描述了一种新型热再生直接转换装置的理论。该装置依靠两种液态金属的反应来提供能量，随后产物热分解成原始反应物。作为一个例子，由Na/玻璃/Na(x)Sn组成的电池的电动势在500℃和702℃之间的温度以及合金中Na的摩尔分数在0.136和0.40之间的情况下变化为0.45-0.38v。实验证实了理论预测，即可以在1000~176℃的温度下从NaSn合金中蒸馏出Na，产生相对纯的Na蒸气和大约3%（wt）的合金残留物。在燃料电池文献中，关于再生系统的工作很少。 Yeager (1) 建议应该研究热再生系统和电化学再生系统。根据或多或少的实际标准，对文献 (2) 的调查显示，只有大约 20 种无机化合物适合热再生系统。另一项评估 (3) 基于热力学和反应动力学数据，仅在无机化合物中产生了三种合适的反应，其中一种 LiH 已经在研究中 (4)。由于涉及复杂的平衡，其他两个反应没有进一步考虑。此外，液态金属系统似乎提供了更简单的平衡并提高了效率。
The theory of a new, thermally regenerative, direct-conversion device is described. The device depends on the reaction of two liquid metals to furnish energy, with subsequent thermal decomposition of the product into the original reactants. As an example, the emf of cells composed of Na/glass/Na (x) Sn varied from 0.45-0.38 v at temperatures between 500~ and 702~ and at mole fractions of Na in the alloy between 0.136 and 0.40. Experiments confirmed theoretical predictions that Na can be distilled from NaSn alloys at temperatures of 1000~ 176 yielding a relatively pure Na vapor and an approximately 3%(wt) alloy residue.In fuel cell literature, there is very little work on regenerative systems. Yeager (1) suggested that thermal and electrochemical regenerative systems should be studied. A survey of the literature (2) revealed only about 20 inorganic compounds suitable for a thermally regenerative system, based on more or less practical criteria. Another evaluation (3), based on thermodynamic and reaction kinetic data, produced only three suitable reactions among the inorganic compounds, one of which, LiH, was already being studied (4). The other two reactions were not considered further because of the complicated equilibria involved. Also, liquid metal systems seemed to offer simpler equilibria and improved efficiency.