Development of new battery technologies based on alternative Chemistries

这项拟议的工作将研究热电池的镁基化学物质。锂离子研究在学术界的主导地位意味着很少有人研究Li的替代品；尤其是一次性使用的高价值热电池。现代热电池是基于Li13Si4/.../MS2(M=Fe，Ni，Co)的。虽然这些技术都经过了试验和测试，但它们的热稳定性从根本上是有限的。阳极Li13Si4在600摄氏度以上是一个问题，很容易出现热失控。在600℃以下，硫化物表现出显著的溶解(特别是对于FeS_2)，这在一定条件下可以形成Li_2S或游离的S。这些问题限制了热电池的工作温度，进而限制了可能的应用。拟议的工作将集中在开发能够在更高温度下工作的稳定的镁基化学物质(时间将审查铝)。

The proposed work will investigate magnesium based chemistries for thermal batteries. The dominance of Li ion research in academia means little work is performed on alternatives to Li; and is especially true for single use high value thermal batteries.Modern thermal batteries are based on Li13Si4/.../MS2 (M=Fe, Ni, Co). Although these technologies are tried and tested, they are fundamentally limited by their thermal stability.The anode, Li13Si4 is a problem above 600 degree C and susceptible to thermal runaway. The sulphides show significant dissolution below 600 degree C (esp for FeS2), this can lead to formation of Li2S or free S under certain conditions. These issues limit the temperatures at which thermal batteries can operate, which in turn limits possible applications.The proposed work will focus on developing stable magnesium based chemistries capable of working at elevated temperatures (time permitting aluminium will be examined).