A coin cell battery is fabricated using triquinoxalinylene as a cathode active material and a lithium metal anode. The first discharge curve shows a remarkably large capacity (420 A h kg−1), which corresponds to a six electron migration in the first charge. However, repeating the charge–discharge until the 15th cycle gradually decreases the capacity, but after that the capacity remains constant with a value of 220 A h kg−1. This large value remains even after 100 cycles. Additionally, the use of a tribromo-substituted derivative gives a large discharge capacity (≈250 A h kg−1) due to a comparatively stable six electron migration from the first charge–discharge cycle.
The 1 :I complex between an osmate ester and bovine serum albumin was found to be effective as a n enantioselective catalyst in the cis-hydroxylation of alkenes, affording diols in up t o 68% e.e. and turnover of the catalyst with t-butyl hydroperoxide.
Two multielectron redox organic compounds, hexaazatrinaphthylene (3Q) and hexaazatriphenylenehexacarbonitrile (6CN) were evaluated as high energy density cathode materials of quasi-solid cells. The cathode dissolution, which has been an issue for organic cathodes, was suppressed and the cell cyclability drastically improved. 6CN, which exhibited low capacity and cyclability in conventional liquid electrolyte, was measured to possess the specific capacity of ∼420 mAh/g. The energy density of the cathode body was ∼720 Wh/kg. It was also discovered that implementation of depth-of-discharge management further improved cyclability. This study is a demonstrative case that cathode compounds deemed unusable in liquid electrolyte may turn usable in solid-state lithium cells.
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