Series-connected substrate-integrated lead-carbon hybrid ultracapacitors with voltage-management circuit

A. Banerjee, R. Srinivasan, A. K. Shukla

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Cell voltage for a fully charged-substrate-integrated lead-carbon hybrid ultracapacitor is about 2.3 V. Therefore, for applications requiring higher DC voltage, several of these ultracapacitors need to be connected in series. However, voltage distribution across each series-connected ultracapacitor tends to be uneven due to tolerance in capacitance and parasitic parallel-resistance values. Accordingly, voltage-management circuit is required to protect constituent ultracapacitors from exceeding their rated voltage. In this study, the design and characterization of the substrate-integrated lead-carbon hybrid ultracapacitor with co-located terminals is discussed. Voltage-management circuit for the ultracapacitor is presented, and its effectiveness is validated experimentally.

Original languageEnglish
Pages (from-to)129-133
Number of pages5
JournalBulletin of Materials Science
Issue number1
StatePublished - 1 Feb 2015
Externally publishedYes

Bibliographical note

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

Publisher Copyright:
© Indian Academy of Sciences.


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  • Voltage-management cell-balancing circuit.


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