Improving the energy density of Li-ion capacitors using polymer-derived porous carbons as cathode
| Title | Improving the energy density of Li-ion capacitors using polymer-derived porous carbons as cathode |
| Publication Type | Journal Article |
| Year of Publication | 2014 |
| Authors | Puthusseri, D, Aravindan, V, Madhavi, S, Ogale, S |
| Journal | Electrochimica Acta |
| Volume | 130 |
| Pagination | 766-770 |
| Date Published | JUN |
| Type of Article | Article |
| ISSN | 0013-4686 |
| Keywords | energy density, Li-ion hybrid electrochemical capacitors, non-aqueous, porous carbon |
| Abstract | High energy density Li-ion hybrid electrochemical capacitors (Li-HEC) are fabricated with 3 D architectured high surface area porous carbon (HSPC) derived from the poly(acrylamide-co-acrylic acid) potassium salt in a single step without any activating agent. The obtained HSPC exhibits high specific surface area of 1490 m(2) g(-1) and characterized with several analytical techniques. Li-HEC is fabricated with insertion type Li4Ti5O12 anode by adjusting the mass balance based on the single electrode performance with Li. The Li-HEC delivered the maximum energy density of similar to 55 Wh kg(-1), which is much higher than commercially available activated carbon (similar to 36 Wh kg(-1)). Further HSPC based Li-HEC delivered excellent cycleability and rendered similar to 87% of initial value after 2000 cycles. (C) 2014 Elsevier Ltd. All rights reserved. |
| DOI | 10.1016/j.electacta.2014.03.079 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 4.803 |