Abstract
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 language | English |
|---|---|
| Pages (from-to) | 129-133 |
| Number of pages | 5 |
| Journal | Bulletin of Materials Science |
| Volume | 38 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Feb 2015 |
| Externally published | Yes |
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.
Keywords
- Substrate-integrated lead-dioxide electrode
- Ultracapacitor
- Voltage-management cell-balancing circuit.