Development of 600-MHz¹⁹F-⁷Li Solid-State NMR Probe for In-Situ Analysis of Lithium Ion Batteries

Abstract

Lithium is a highly attractive material for high-energy-concentration batteries, since it has low weight and high potential. Rechargeable lithium-ion batteries (LIBs), which have the extremely high gravimetric and volumetric energy densities, are currently the most preferable power sources for future electric vehicles and various portable electronic devices. In order to improve the efficiency and lifetime, new electrode compounds for lithium intercalation or insertion have been investigated for rechargeable batteries. Solid-state nuclear magnetic resonance (NMR) is a very useful tool to investigate the structural changes in electrode materials in actual working lithium-ion batteries. To detect the in-situ microstructural changes of electrode and electrolyte materials, 7 Li-19 F double-resonance solid-state NMR probe with a static solenoidal coil for a 600-MHz narrowbore magnet was designed, constructed, and tested successfully.

1H-31P home-built solid-state NMR probe with a scroll coil for 400-MHz NB magnet for biological lossy sample

“…The all probe compositions were made of non-magnetic materials such as aluminum, brass, glass, and polytetrafluoroethylene (PTFE) (Choi et al, 2012, Jeong et al, 2013, Park et al, 2010. The aluminum pipe of 6061 was used for probe body and refined to 39.5-mm outer diameter (OD) and 39.1-mm inner diameter (ID).…”