Development of new battery technologies based on alternative Chemistries

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占据主导地位，这意味着对锂离子替代品的研究很少；对于一次性使用的高价值热电池尤其如此。现代热电池是基于Li13Si4/…/MS2 （M=Fe, Ni, Co）尽管这些技术经过了尝试和测试，但它们的热稳定性从根本上受到了限制。阳极Li13Si4在600摄氏度以上是一个问题，容易热失控。在600℃以下，硫化物（特别是FeS2）溶解明显，在一定条件下可形成Li2S或游离S。这些问题限制了热电池的工作温度，这反过来又限制了热电池的应用。拟议的工作将侧重于开发能够在高温下工作的稳定的镁基化学物质（时间允许的话，将研究铝）。

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).