I-Corps: A High Energy Lithium Metal Battery Enabled by Atomic Layer Deposition

这个I-Corps项目更广泛的影响/商业潜力是开发一种上级最先进的锂离子电池（LIB）的锂金属电池（LMB）技术。 目前LIB的技术瓶颈是电动汽车广泛采用的一个限制。在这种情况下，需要更高能量密度的电池来提高电动汽车的续驶里程。 同时，这些改进的电池还必须具有可承受的成本、长寿命和可靠的安全性。I-Corps项目中提出的LMB技术可能满足所有这些要求。 这项新的LMB技术的成功开发有可能提高电动汽车的市场份额，并有助于采用可再生能源。该I-Corps项目开发了一种高能锂金属电池LMB技术，该技术由锂（Li）金属阳极和层状LiNi0.8Mn0.1Co0.1O2（NMC 811）阴极组成。 锂阳极具有极高的容量，比锂离子电池（LIB）中的石墨阳极高10倍。NMC 811阴极更具成本效益，同时能够实现比LIB中目前使用的LiCoO 2更高的容量。该项目利用两个纳米涂层共形沉积使用原子层沉积在锂阳极和NMC 811阴极。 这些涂层可以显著提高锂阳极和NMC 811阴极的使用寿命和持续高容量。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The broader impact/commercial potential of this I-Corps project is to develop a lithium metal battery (LMB) technology that is superior to state-of-the-art lithium-ion batteries (LIBs). Technical bottlenecks in current LIBs are one limitation on the widespread adoption of electric vehicles. In this context, higher energy density batteries are needed to improve the driving range of electric vehicles. At the same time these improved batteries must also have an affordable cost, long lifetime, and reliable safety. The proposed LMB technology in this I-Corps project can potentially meet all these requirements. Successful development of this new LMB technology has the potential to boost the market share of electric vehicles and help the adoption of renewable energy sources.This I-Corps project develops a high-energy lithium metal battery LMB technology, which consists of a lithium (Li) metal anode and a layered LiNi0.8Mn0.1Co0.1O2 (NMC811) cathode. The Li anode enables an extremely high capacity, 10 times higher than that of the graphite anode in lithium-ion batteries (LIBs). The NMC811 cathode is more cost-effective while enabling a higher capacity than that of the currently utilized LiCoO2 in LIBs. This project utilizes two nanocoatings conformally deposited using atomic layer deposition on the Li anode and NMC811 cathode. These coatings can significantly improve the lifetime and sustained high capacity of the Li anode and NMC811 cathode.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.