Improving the energy density of Li-ion capacitors using polymer-derived porous carbons as cathode

Dhanya Puthusseri; Vanchiappan Aravindan; Srinivasan Madhavi; Satishchandra Ogale

doi:10.1016/j.electacta.2014.03.079

Improving the energy density of Li-ion capacitors using polymer-derived porous carbons as cathode

Dhanya Puthusseri, Vanchiappan Aravindan^*, Srinivasan Madhavi, Satishchandra Ogale

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

76 Citations (Scopus)

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 m² g^-1 and characterized with several analytical techniques. Li-HEC is fabricated with insertion type Li ₄Ti₅O₁₂ anode by adjusting the mass balance based on the single electrode performance with Li. The Li-HEC delivered the maximum energy density of ∼55 Wh kg^-1, which is much higher than commercially available activated carbon (∼36 Wh kg^-1). Further HSPC based Li-HEC delivered excellent cycleability and rendered ∼87% of initial value after 2000 cycles.

Original language	English
Pages (from-to)	766-770
Number of pages	5
Journal	Electrochimica Acta
Volume	130
DOIs	https://doi.org/10.1016/j.electacta.2014.03.079
Publication status	Published - Jun 1 2014
Externally published	Yes

ASJC Scopus Subject Areas

General Chemical Engineering
Electrochemistry

Keywords

energy density
Li-ion hybrid electrochemical capacitors
non-aqueous
porous carbon

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10.1016/j.electacta.2014.03.079

Cite this

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title = "Improving the energy density of Li-ion capacitors using polymer-derived porous carbons as cathode",

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 m2 g-1 and characterized with several analytical techniques. Li-HEC is fabricated with insertion type Li 4Ti5O12 anode by adjusting the mass balance based on the single electrode performance with Li. The Li-HEC delivered the maximum energy density of ∼55 Wh kg-1, which is much higher than commercially available activated carbon (∼36 Wh kg-1). Further HSPC based Li-HEC delivered excellent cycleability and rendered ∼87% of initial value after 2000 cycles.",

keywords = "energy density, Li-ion hybrid electrochemical capacitors, non-aqueous, porous carbon",

author = "Dhanya Puthusseri and Vanchiappan Aravindan and Srinivasan Madhavi and Satishchandra Ogale",

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T1 - Improving the energy density of Li-ion capacitors using polymer-derived porous carbons as cathode

AU - Puthusseri, Dhanya

AU - Aravindan, Vanchiappan

AU - Madhavi, Srinivasan

AU - Ogale, Satishchandra

PY - 2014/6/1

Y1 - 2014/6/1

N2 - 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 m2 g-1 and characterized with several analytical techniques. Li-HEC is fabricated with insertion type Li 4Ti5O12 anode by adjusting the mass balance based on the single electrode performance with Li. The Li-HEC delivered the maximum energy density of ∼55 Wh kg-1, which is much higher than commercially available activated carbon (∼36 Wh kg-1). Further HSPC based Li-HEC delivered excellent cycleability and rendered ∼87% of initial value after 2000 cycles.

AB - 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 m2 g-1 and characterized with several analytical techniques. Li-HEC is fabricated with insertion type Li 4Ti5O12 anode by adjusting the mass balance based on the single electrode performance with Li. The Li-HEC delivered the maximum energy density of ∼55 Wh kg-1, which is much higher than commercially available activated carbon (∼36 Wh kg-1). Further HSPC based Li-HEC delivered excellent cycleability and rendered ∼87% of initial value after 2000 cycles.

KW - energy density

KW - Li-ion hybrid electrochemical capacitors

KW - non-aqueous

KW - porous carbon

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Improving the energy density of Li-ion capacitors using polymer-derived porous carbons as cathode

Abstract

ASJC Scopus Subject Areas

Keywords

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