Development of new battery technologies based on alternative Chemistries

基于替代化学物质的新电池技术的开发

• 批准号: 1690712
• 金额: --
• 依托单位: University of St Andrews
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1690712
• 关键词: Development; new; battery; technologies; based

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).

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对锂的替代品进行研究;对于一次性高价值热电池尤其如此。现代热电池基于Li 13 Si 4/.../ MS 2（M=Fe，Ni，Co）.尽管这些技术经过了试验和测试，但它们从根本上受到其热稳定性的限制。阳极Li 13 Si 4在600摄氏度以上是一个问题，并且容易发生热失控。硫化物在低于600 ℃时显示出显著的溶解（尤其是FeS 2），这可能导致在某些条件下形成Li 2S或游离S。这些问题限制了热电池的工作温度，从而限制了其可能的应用。拟议的工作将集中于开发能够在高温下工作的稳定的镁基化学物质（将研究时间允许的铝）。