Demonstrating large-scale and high-performance lithium-sulfur batteries

展示大规模高性能锂硫电池

• 批准号: EP/Y036735/1
• 负责人: Manish Chhowalla
• 金额: $ 16.19万
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FY036735%2F1
• 关键词: Demonstrating; large; scale; performance; lithium

Lithium-sulfur (Li-S) batteries represent one of the most promising technologies to advance battery performance beyond lithium-ion batteries (LIBs), to move away from the reliance of critical raw materials, and enable applications previously inaccessible due to poor energy to weight ratio such as powered flight. The current battery market is valued at $110 Bn ($424 Bn by 2027). It is estimated that a third of this market is for weight-critical applications which account for approximately 2 % of global carbon emissions. Li-S batteries are key to facilitating the net-zero transition and electrifying these weight-critical technologies.The commercialisation of Li-S batteries has been hindered by the lack of a viable cathode material with energy density to complement the Li-metal anode used in these cells. Furthermore, there are several factors which hinder the route to a viable Li-S battery including active material loss, high electrolyte use, and poor sulfur conversion. This all leads to low-capacity and short-lived Li- S batteries. Therefore, there is an urgent need to overcome these issued to enable Li-S batteries.Work supported by the PI's ERC Advanced Grant has shown a transformative breakthrough of a new cathode host; LixMoS2, for critical raw materials-free Li-S batteries. This remarkable cathode host has shown to solve key issues which have previously lingered during decades of research efforts, to enable high-energy and long-life Li-S batteries for the first time.This Proof of Concept aims to take essential commercial and technical steps to commercialise this innovation: demonstrate kilogram scale manufacturing of our cathode, demonstrate large-scale Li-S batteries with high-performance using our scaled-up cathode material, a critical market assessment for a business plan, and engagement with industry and end-user for a route-to-market.

锂硫 (Li-S) 电池是最有前途的技术之一，可提高电池性能，超越锂离子电池 (LIB)，摆脱对关键原材料的依赖，并实现以前因能源匮乏而无法实现的应用。重量比如动力飞行。目前的电池市场价值为 1,100 亿美元（到 2027 年将达到 4,240 亿美元）。据估计，该市场的三分之一用于重量关键型应用，其碳排放量约占全球碳排放量的 2%。锂硫电池是促进净零转型和使这些重量关键技术电气化的关键。由于缺乏具有能量密度的可行阴极材料来补充所用的锂金属阳极，锂硫电池的商业化受到阻碍在这些细胞中。此外，还有几个因素阻碍了锂硫电池的发展，包括活性材料损失、电解质使用量高和硫转化率差。这一切都会导致锂硫电池容量低、寿命短。因此，迫切需要克服这些问题，使锂硫电池成为可能。PI的ERC高级资助支持的工作显示了新型正极主体的革命性突破； LixMoS2，用于关键的无原材料锂硫电池。这种卓越的阴极主体已被证明能够解决之前数十年研究工作中一直存在的关键问题，从而首次实现高能量和长寿命的锂硫电池。这一概念验证旨在采取必要的商业和技术步骤将该创新商业化：展示我们的阴极的公斤级制造，使用我们的按比例放大的阴极材料展示具有高性能的大型锂硫电池，对业务计划进行关键的市场评估，以及与行业和最终用户的互动进入市场的途径。