Substrate integrated Lead-Carbon hybrid ultracapacitor with flooded, absorbent glass mat and silica-gel electrolyte configurations

A. Banerjee; M. K. Ravikumar; A. Jalajakshi; P. Suresh Kumar; S. A. Gaffoor; A. K. Shukla

doi:10.1007/s12039-012-0273-x

Substrate integrated Lead-Carbon hybrid ultracapacitor with flooded, absorbent glass mat and silica-gel electrolyte configurations

A. Banerjee, M. K. Ravikumar, A. Jalajakshi, P. Suresh Kumar, S. A. Gaffoor, A. K. Shukla

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

27 Scopus citations

Abstract

Lead-Carbon hybrid ultracapacitors (Pb-C HUCs) with flooded, absorbent-glass-mat (AGM) and silica-gel sulphuric acid electrolyte configurations are developed and performance tested. Pb-C HUCs comprise substrate-integrated PbO₂ (SI-PbO₂) as positive electrodes and high surface-area carbon with graphite-sheet substrate as negative electrodes. The electrode and silica-gel electrolyte materials are characterized by XRD, XPS, SEM, TEM, Rheometry, BET surface area, and FTIR spectroscopy in conjunction with electrochemistry. Electrochemical performance of SI-PbO ₂ and carbon electrodes is studied using cyclic voltammetry with constant-current charge and discharge techniques by assembling symmetric electrical-double-layer capacitors and hybrid Pb-C HUCs with a dynamic Pb(porous)/PbSO₄ reference electrode. The specific capacitance values for 2 V Pb-C HUCs are found to be 166 F/g, 102 F/g and 152 F/g with a faradaic efficiency of 98%, 92% and 88% for flooded, AGM and gel configurations, respectively.

Original language	English
Pages (from-to)	747-762
Number of pages	16
Journal	Journal of Chemical Sciences
Volume	124
Issue number	4
DOIs	https://doi.org/10.1007/s12039-012-0273-x
State	Published - Jul 2012
Externally published	Yes

Bibliographical note

Funding Information:
Financial support from the Department of Science and Technology, Government of India, and Indian Institute of Science, Bangalore under its Energy Storage systems Initiative is gratefully acknowledged. AB thanks the Council of Scientific and Industrial Research (CSIR), New Delhi for a Junior Research Fellowship.

Funding

Financial support from the Department of Science and Technology, Government of India, and Indian Institute of Science, Bangalore under its Energy Storage systems Initiative is gratefully acknowledged. AB thanks the Council of Scientific and Industrial Research (CSIR), New Delhi for a Junior Research Fellowship.

Funders	Funder number
Indian Institute of Science
Bangladesh Council of Scientific and Industrial Research
Department of Science and Technology, Government of Kerala

Keywords

Hybrid ultracapacitor
Silica-gel electrolyte

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10.1007/s12039-012-0273-x

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title = "Substrate integrated Lead-Carbon hybrid ultracapacitor with flooded, absorbent glass mat and silica-gel electrolyte configurations",

abstract = "Lead-Carbon hybrid ultracapacitors (Pb-C HUCs) with flooded, absorbent-glass-mat (AGM) and silica-gel sulphuric acid electrolyte configurations are developed and performance tested. Pb-C HUCs comprise substrate-integrated PbO2 (SI-PbO2) as positive electrodes and high surface-area carbon with graphite-sheet substrate as negative electrodes. The electrode and silica-gel electrolyte materials are characterized by XRD, XPS, SEM, TEM, Rheometry, BET surface area, and FTIR spectroscopy in conjunction with electrochemistry. Electrochemical performance of SI-PbO 2 and carbon electrodes is studied using cyclic voltammetry with constant-current charge and discharge techniques by assembling symmetric electrical-double-layer capacitors and hybrid Pb-C HUCs with a dynamic Pb(porous)/PbSO4 reference electrode. The specific capacitance values for 2 V Pb-C HUCs are found to be 166 F/g, 102 F/g and 152 F/g with a faradaic efficiency of 98%, 92% and 88% for flooded, AGM and gel configurations, respectively.",

keywords = "Hybrid ultracapacitor, Silica-gel electrolyte",

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note = "Funding Information: Financial support from the Department of Science and Technology, Government of India, and Indian Institute of Science, Bangalore under its Energy Storage systems Initiative is gratefully acknowledged. AB thanks the Council of Scientific and Industrial Research (CSIR), New Delhi for a Junior Research Fellowship.",

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T1 - Substrate integrated Lead-Carbon hybrid ultracapacitor with flooded, absorbent glass mat and silica-gel electrolyte configurations

AU - Banerjee, A.

AU - Ravikumar, M. K.

AU - Jalajakshi, A.

AU - Suresh Kumar, P.

AU - Gaffoor, S. A.

AU - Shukla, A. K.

N1 - Funding Information: Financial support from the Department of Science and Technology, Government of India, and Indian Institute of Science, Bangalore under its Energy Storage systems Initiative is gratefully acknowledged. AB thanks the Council of Scientific and Industrial Research (CSIR), New Delhi for a Junior Research Fellowship.

PY - 2012/7

Y1 - 2012/7

N2 - Lead-Carbon hybrid ultracapacitors (Pb-C HUCs) with flooded, absorbent-glass-mat (AGM) and silica-gel sulphuric acid electrolyte configurations are developed and performance tested. Pb-C HUCs comprise substrate-integrated PbO2 (SI-PbO2) as positive electrodes and high surface-area carbon with graphite-sheet substrate as negative electrodes. The electrode and silica-gel electrolyte materials are characterized by XRD, XPS, SEM, TEM, Rheometry, BET surface area, and FTIR spectroscopy in conjunction with electrochemistry. Electrochemical performance of SI-PbO 2 and carbon electrodes is studied using cyclic voltammetry with constant-current charge and discharge techniques by assembling symmetric electrical-double-layer capacitors and hybrid Pb-C HUCs with a dynamic Pb(porous)/PbSO4 reference electrode. The specific capacitance values for 2 V Pb-C HUCs are found to be 166 F/g, 102 F/g and 152 F/g with a faradaic efficiency of 98%, 92% and 88% for flooded, AGM and gel configurations, respectively.

AB - Lead-Carbon hybrid ultracapacitors (Pb-C HUCs) with flooded, absorbent-glass-mat (AGM) and silica-gel sulphuric acid electrolyte configurations are developed and performance tested. Pb-C HUCs comprise substrate-integrated PbO2 (SI-PbO2) as positive electrodes and high surface-area carbon with graphite-sheet substrate as negative electrodes. The electrode and silica-gel electrolyte materials are characterized by XRD, XPS, SEM, TEM, Rheometry, BET surface area, and FTIR spectroscopy in conjunction with electrochemistry. Electrochemical performance of SI-PbO 2 and carbon electrodes is studied using cyclic voltammetry with constant-current charge and discharge techniques by assembling symmetric electrical-double-layer capacitors and hybrid Pb-C HUCs with a dynamic Pb(porous)/PbSO4 reference electrode. The specific capacitance values for 2 V Pb-C HUCs are found to be 166 F/g, 102 F/g and 152 F/g with a faradaic efficiency of 98%, 92% and 88% for flooded, AGM and gel configurations, respectively.

KW - Hybrid ultracapacitor

KW - Silica-gel electrolyte

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Substrate integrated Lead-Carbon hybrid ultracapacitor with flooded, absorbent glass mat and silica-gel electrolyte configurations

Abstract

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