SBIR Phase II: Planar ZEBRA Battery Development

这个小型企业创新研究二期项目是开发一种平面、高度紧凑的钠离子可充电电池，使用钠离子传导β ？-氧化铝固体电解质（Na-BASE）夹在液态钠和氯化镍基盐之间，（p-ZEBRA电池）。市面上的钠- β电池都是由壁厚超过2毫米的BASE管构成的，以保持电池的机械完整性，从而导致相对较低的比能密度和较大的热质量，从而抑制了快速的热循环。该项目的主要目标是通过开发具有薄平面结构的先进电池来克服最先进的钠- β电池技术的局限性。高性能的Na-BASE盘片具有高强度和高抗湿气和二氧化碳侵蚀的能力，将使用MSRI？S专利气相法。独特的电池设计，先进的密封技术开发和降解缓解实施，将使p-ZEBRA电池集成和操作灵活性适用于间歇性可再生能源存储应用（风能、太阳能和地热），具有高往返效率。它还可以与内燃机或固体氧化物燃料电池热集成，用于插电式混合动力汽车（PHEV）应用，延长行驶里程。该项目更广泛的影响/商业潜力是提供低成本、高可靠的电能存储系统，该系统集成了广泛的发电系统。它包括可再生能源电力系统的快速市场渗透，以减轻电网暂态和国家能源依赖的问题，以及汽油内燃机或先进的固体氧化物燃料电池，用于延长行驶距离的插电式混合动力车。拟议的p-ZEBRA电池技术的成功开发和部署将有助于美国建立关键的新产业，并恢复美国在大型电力储能系统方面的领导地位。

This Small Business Innovation Research Phase II project is to develop a planar, highly compact, sodium-beta rechargeable battery using sodium-ion conducting beta?- alumina solid electrolyte (Na-BASE) sandwiched between liquid sodium and nickel chloride-based salt, (a p-ZEBRA battery). The commercially available sodium-beta batteries are all constructed with BASE tubes having wall thickness of over 2 millimeters to maintain the battery mechanical integrity, thus leading to relatively low specific energy densities and large thermal masses that inhibit fast thermal cycling. The primary objective of this program is to overcome the limitations of the state-of-the-art sodium- beta battery technologies by the development of an advanced battery with a thin planar architecture. High performance Na-BASE discs possessing high strength and high resistance to moisture and CO2 attack will be developed and manufactured using the MSRI?s patented vapor phase process. A unique battery design accompanying an advanced sealing technology development and degradation mitigation implementation will enable the p-ZEBRA battery integration and operation flexibility suitable for intermittent renewable energy storage applications (wind, solar power and geothermal) with high round-trip efficiencies. It also enables thermal integration with internal- combustion engines or solid oxide fuel cells for plug-in hybrid electric vehicle (PHEV) applications with extended driving range.The broader impact/commercial potential of this project is to provide a low cost, highly reliable electrical energy storage system, which integrates a broad spectrum of power generation systems. It includes fast market penetration of renewable energy power systems that mitigate issues of grid transient and national energy dependency, and gasoline internal-combustion engines or advanced solid oxide fuel cells for PHEVs with extended driving distances. The successful development and deployment of the proposed p-ZEBRA battery technology will assist the US in building critical new industry and reinstating US leadership in large-scale electrical energy storage systems.