Zhang, Qi; Rao, Sijia; Vummaleti, Sai Vikrama Chaitanya; Poh, Eng Tuan; Dai, Wenrui; Cui, Xinhang; Wu, Jishan; Zhang, Jia; Chen, Wei published the artcile< High-performance Li-O2 batteries enabled by dibenzo-24-crown-8 aldehyde derivative as electrolyte additives>, Synthetic Route of 112-63-0, the main research area is lithium ion battery electrolyte additive aldehyde derivative.
Aprotic Li-O2 batteries (LOB) with high theor. energy d. usually experience cathode clogging by insoluble Li2O2, along with high charge overpotential from its insulating nature. A dibenzo-24-crown-8 aldehyde derivative (DB24C8A) is employed as an additive to enhance the binding strength with Li+, hence promoting the solubility of Li2O2. The generated [DB24C8A•Li+] avoids the parasitic reactions caused by reactive O2-. Thus, the LOB achieves a large discharge capacity of 6939 mAh g-1 at 200 mA g-1 and a high Li2O2 yield (≈93%). Moreover, DB24C8A facilitates the efficient decomposition of Li2O2 via Li+ coordination during the charge process, reducing the charge overpotential to 0.77 V and prolonging the lifetime of the LOB over 213 cycles at 1000 mAh g-1 and 500 mA g-1. This work provides a novel approach to boost the performance of LOB by incorporation of crown ether-based compounds to regulate the Li2O2 growth and decomposition pathway.
Advanced Energy Materials published new progress about Battery electrolytes. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Synthetic Route of 112-63-0.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics