A Surface Coordination Interphase Stabilizes a Solid-State Battery.

Solid-state electrolytes (SSEs) show potential in addressing the safety issues of liquid batteries, but the poor interface contact between them and the electrodes hinders practical applications. Here, coordination chemistry of nitrile groups based on succinonitrile (SCN) and polyacrylonitrile (PAN) is studied on the surface of Li La Zr Ta O (LLZTO) SSE to build the chemical bonded electrolyte/electrode interfaces. The coordination of the nitrile group and LLZTO is clarified.

On-surface lithium donor reaction enables decarbonated lithium garnets and compatible interfaces within cathodes.

Lithium garnets have been widely studied as promising electrolytes that could enable the next-generation all-solid-state lithium batteries. However, upon exposure to atmospheric moisture and carbon dioxide, insulating lithium carbonate forms on the surface and deteriorates the interfaces within electrodes. Here, we report a scalable solid sintering method, defined by lithium donor reaction that allows for complete decarbonation of LiLaZrTaO (LLZTO) and yields an active LiCoO layer for each garnet particle.

Evodialones A and B: Polyprenylated Acylcyclopentanone Racemates with a 3-Ethyl-1,1-diisopentyl-4-methylcyclopentane Skeleton from Evodia lepta.

Two polyprenylated acylcyclopentanone racemates, evodialones A (1) and B (2), featuring a 3-ethyl-1,1-diisopentyl-4-methylcyclopentane skeleton, were isolated from an extract of the aerial parts of Evodia lepta. Evodialone A (1) was resolved by chiral-phase HPLC to afford a pair of enantiomers, (+)- and (-)-evodialones A (1b/1a), while evodialone B (2) could not be resolved. Their structures were elucidated by spectroscopic analysis and a combination of computational techniques including gauge-independent atomic orbital calculation of 1D NMR data and experimental and TDDFT-calculated ECD spectra.

[Decreased basic activity and induced activity of ERK1/2 pathway in hippocampal CA1/CA2 region of ovariectomized rats].

Aim: To investigate the relationship between the spatial learning and memory and hippocampal ERK1/2 pathway activity in ovariectomized rats.

Methods: Female SD rats were randomly divided into sham operated group (Sham group) and ovariectomized group (OVX group), and fed 4 months. Then spatial learning and memory of rats were evaluated by the Morris water maze task.