SBIR Phase I: Sodium-Based All-Solid-State Batteries for Stationary Energy Storage

SBIR第一阶段：用于固定储能的钠基全固态电池

• 批准号: 2136302
• 负责人: Erik Wu
• 金额: $ 25.57万
• 依托单位: UNIGRID LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-02-15 至 2023-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2136302&HistoricalAwards=false
• 关键词: SBIR; Phase; Sodium; Based; Solid

The broader impact of this Small Business Innovation Research (SBIR) Phase I project will involve lowering the barrier to adoption of renewable energy generation and energy storage. The project seeks to take advantage the sheer abundance and low costs of sodium materials compared to state-of-the-art lithium materials. This will reduce upfront energy storage cost and in turn the payback time and costs of electricity for end users can be significantly reduced. The United States has 23 billion tons of domestic sodium reserves, which makes up 88% of the global supply of sodium. Successful utilization of the vast U.S. sodium reserves in new battery technologies will significantly reduce import reliance of critical materials and alleviate supply chain limitations on lithium-based materials. This project will accelerate the adoption of solar and renewable energy generation, making the grid cleaner, more sustainable, and more resilient.This research project advances new batteries enabled by a novel halide-based sodium solid state electrolyte. The technology offers several beneficial properties compared with conventional lithium-ion batteries: enhanced safety due to the use of completely nonflammable materials, higher volumetric energy density by using a dense alloy-based anode, lowered costs due to the abundance of sodium-based raw materials, and improved longevity from the use of superior halide-based solid-state electrolytes. Unlike the commonly used sulfide-based or oxide-based solid electrolyte materials, the halide-based innovation provides enhanced electrochemical and chemical stability while eliminating the need for high temperature sintering during fabrication. This project develops the halide solid electrolyte material, improving its baseline material ionic conductivity by 1-2 orders of magnitude, as well as exploring scalable synthesis routes using single-step fabrication at room temperature.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

小企业创新研究（SBIR）第一阶段项目的更广泛影响将涉及降低采用可再生能源发电和储能的障碍。该项目旨在利用钠材料与最先进的锂材料相比的绝对丰富和低成本。这将降低前期储能成本，反过来，最终用户的投资回报时间和电力成本可以显着降低。美国拥有230亿吨国内钠储备，占全球钠供应量的88%。在新电池技术中成功利用美国巨大的钠储备将大大减少对关键材料的进口依赖，并缓解锂基材料的供应链限制。该项目将加速采用太阳能和可再生能源发电，使电网更清洁，更可持续，更有弹性。该研究项目推进了由新型卤化物基钠固态电解质实现的新型电池。与传统锂离子电池相比，该技术提供了几个有益的特性：由于使用完全不易燃的材料而提高了安全性，通过使用致密的合金基阳极而提高了体积能量密度，由于丰富的钠基原材料而降低了成本，以及由于使用上级卤化物基固态电解质而延长了寿命。与常用的基于硫化物或基于氧化物的固体电解质材料不同，基于卤化物的创新提供了增强的电化学和化学稳定性，同时消除了在制造过程中对高温烧结的需要。该项目开发了卤化物固体电解质材料，将其基准材料的离子电导率提高了1-2个数量级，并探索了在室温下使用单步制造的可扩展合成路线。该奖项反映了NSF的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。