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INDIAN INSTITUTE OF TECHNOLOGY ROORKEE
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ENERGY STORAGE LABORATORY
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Flexible Energy Storage Devices: Li-ion Battery and Hybrid Supercapacitors

The recent boom in multifunction portable electronic equipment such as mobile phones, wearable electronics/flexible displays, and the increasing need for wireless sensor networks for the development of smart environments have raised the problem of developing sufficiently lightweight, compact and/or flexible energy storage devices (supercapacitors and Li-ion batteries) that can achieve high energy delivery or harvesting at high discharge rates with a lifetime that matches or exceeds that of the machine being powered. In this regard, much research efforts are required for the development of efficient flexible electrochemical energy storage devices such as supercapacitors (SCs) and battery modules (especially Li-ion batteries).