Hexafluorophosphate intercalation into graphite electrode from gamma-butyrolactone solutions in activated carbon/graphite capacitors

Autor: Li Qi, Hongyu Wang, Masaki Yoshio, Shengfeng Tian, Gao Jichao
Rok vydání: 2015
Předmět:
Zdroj: Journal of Power Sources. 297:121-126
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2015.06.111
Popis: In our recent work, the solvent of ethylene carbonate (EC) has been found to retard the intercalation of anions into graphite electrodes. Here we demonstrate that gamma-butyrolactone (GBL) also exhibits suppressive effect on the intercalation of PF 6 − into the interlayer space between the graphene planes. The intercalation process of PF 6 − into graphite electrode from GBL has been investigated by in situ XRD, in situ Raman and EQCM. Furthermore, the effect of GBL has been compared with those of EC and propylene carbonate (PC).
Databáze: OpenAIRE