Electrochemical characteristics of active carbon prepared by chemical activation for anode of lithium ion battery

Abstract

In this study, several kinds of active carbons with high specific surface area and micro pore structure were prepared from the coconut shell charcoal using chemical activation method. The physical property of prepared active carbon was investigated by experimental variables such as activating chemical agents to char coal ratio, flow rate of inert gas and temperature. It was shown that chemical activation with KOH and NaOH was successfully able to make active carbons with high surface area of 1900~2500 m 2 /g and mean pore size of 1.85~2.32 nm. The coin cell using water-based binder in the electrolyte of LiPF 6 dissolved in mixed organic solvents (EC:DMC:EMC=1:1:1 vol%) showed better capacity than that of oil-based binder. Also, it was found that the coin cell of water-based binder shows an improved cycling performance and coulombic efficiency.

3,5-Disubstituted Piperidine Derivatives—A Scalable Route to All Four Stereoisomers

“…3,5-Disubstituted piperidines with different substitution patterns are structurally interesting motives in pharmacological active compounds, a fact that is reflected in the wealth of publications highlighting this motif, especially patent literature. − Substituted piperidines are found in natural products and also mimic them . Furthermore, they are key intermediates in the synthesis of pharmacologically active compounds , or natural products. , …”