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.

1Z profiles followed a theoretical square-law functional dependence [4]. Our preliminary results show that R 2 CP is sensitive to hydration levels as well as the acyl position, thus indicating the presence of slow dynamic modes. The R 2 CP rates of the acyl segments near the polar head groups increase with lipid dehydration, while the acyl segments deeper in the hydrophobic region show lower R 2 CP values at high dehydration levels. Similar studies in presence of peptides and proteins can give insight into optimized lipid hydration for protein functionality and slow cooperative motions.