SBIR Phase I: Nanoparticulate Based Coating Approach for Making Thin Film Batteries

这个小型企业创新研究（SBIR）项目的重点是开发一种固态锂离子薄膜电池，这种电池是通过使用低成本的纳米颗粒沉积方法制成的。 在第一阶段，纳米颗粒沉积方法的可行性将通过开发锂离子电池来证明，该锂离子电池以LiCoO 2为阴极，锂磷氮氧化物（LIPON）为电解质，碳纳米管（CNT）和纳米级锡颗粒（~10 nm）的纳米复合材料为阳极。阴极和阳极将使用基于纳米颗粒的涂层技术开发。这种纳米颗粒涂层的沉积依赖于未聚集的纳米颗粒的胶体的合成，然后可以使用简单的液相沉积技术如旋涂或浸涂来沉积所述胶体。与物理气相沉积工艺相比，使用基于非真空的工艺来沉积用于基于Li离子的电池的存款涂层将不仅降低制造成本，而且将有助于改善电池的性能。成功完成拟议项目将导致薄膜锂离子固态电池制造的重大改进。

This Small Business Innovative Research (SBIR) project focuses on development of a solid state lithium ion thin film battery made by using a lower cost, nanoparticulate based deposition approach. In Phase I, the feasibility of a nanoparticulate deposition approach will be demonstrated by developing a Lithium ion cell with LiCoO2 as cathode, lithium phosphorous oxynitride (LIPON) as the electrolyte and a nanocomposite of carbon nanotubes (CNT) and nanoscale tin particles (~10 nm) as the anode. The cathode and the anode will be developed using a nanoparticulate based coating technique. Deposition of such nanoparticulate coating relies on synthesis of colloids of unagglomerated nanoparticles that can then be deposited using simple liquid phase deposition techniques like spin coating or dip coating. Using a non-vacuum based process to deposit coatings for a Li ion-based battery as compared to physical vapor deposition processes will not only reduce the manufacturing cost but will contribute towards improving the performance of the battery. Successful completion of the proposed project will lead to significant improvement in the manufacturing of thin film lithium ion solid state batteries.