Advanced Design Guidelines for Ceramic Based Solid State Energy Storage Systems

The proposed LTP shall enable us to link tightly high-resolution 3D imaging at ID16B with processing to establish more enhanced all solid-state batteries (ASSB). In particular we would like to focus within this LTP on the (1) development of sophisticated design guidelines for ceramic electrolyte blends (Argoyrodites, Nasicons, Garnets, Anti-Perovskites) thereby imaging the architectured 3D morphology in correlation with chemical information for various processing parameters down to 50 nm, (2) improvement of ceramic cathode composites e.g. NCM/LATP or LCM/Argyrodite systems using high resolution 3D morphology characterization in correlation with chemical information down to a resolution of 50 nm, and (3) development of an in-situ setup to witness in a novel ASSB system (composite cathode/ceramic electrolyte blend) the dynamical evolution of the morphology and degradation with cycling. The LTP shall provide the necessary continuous access for high resolution nano-tomography at ID16B.

本提案提出的长期实验项目（Long-Term Proposal, LTP）将实现ID16B光束线处的高分辨率三维成像与材料制备工艺的紧密耦合，以开发性能更优异的全固态电池（all solid-state batteries, ASSB）。具体而言，本项目将聚焦以下三个研究方向：（1）开发陶瓷电解质复相体系（涵盖硫银锗矿型电解质（Argyrodites）、钠超离子导体（NASICON）、石榴石型电解质（Garnets）、反钙钛矿材料（Anti-Perovskites））的精细化设计准则，借此实现分辨率低至50 nm的结构化三维形貌成像，并结合化学信息表征不同制备工艺参数下的结构与化学特性；（2）针对NCM/LATP、LCM/硫银锗矿等陶瓷正极复合材料体系，通过分辨率低至50 nm的高分辨率三维形貌表征结合化学信息分析，优化其综合性能；（3）搭建原位测试装置，以实时观测新型全固态电池体系（复合正极/陶瓷电解质复相体系）在循环过程中的形貌动态演化与性能退化过程。本项目将为研究人员在ID16B光束线处开展高分辨率纳米断层成像提供必要的持续使用权限。