Electrospun nanofibers have been widely researched as platform materials for various applications. Simple processing setup and wide variety of material selection have attracted great interests of worldwide researchers. This group aims to design highly exotic nanofibers and their derivatives based on a faithful understanding of principles.

Representative achievements

• Energy Storage Materials, 17, 62-69, 2019

• Scientific Reports, 4, 6758, 2014

• Macromolecular Research, 20 (6), 605-613, 2012

Rapid growth of ubiquitous and mobile electronic devices from smartphones to electric vehicles have mainly counted on ready commercialized Li-ion batteries. However, much more efforts on advanced rechargeable energy storage devices have been required because of even more rapidly grown needs on increasing energy and power densities for upcoming advanced electronic devices and resolving safety issues of organic electrolyte based Li-ion batteries. Our mission is contributing to design of novel energy storage materials for the advanced Li-ion batteries and next generation batteries with higher energy and power densities and improved safety.

Representative achievements

• ACS Applied Materials & Interfaces, 10 (45), 38928-38935, 2018

• Journal of the Electrochemical Society 165(3), A525-A533, 2018

• ACS nano, 10, 2617-2627, 2016

Reusable energy sources have attracted significant attention because of serious concerns on the fossil fuel depletion and pollution caused by excessive energy consumption. Energy generators or harvesters converting mechanical energy to electrical energy have been intensively and extensively researched owing to absolute abundance of mechanical energy sources. Fibers and textiles have been emerged as promising energy generating materials due to their inherent piezoelectric, ferroelectric, and triboelectric properties. We are designing novel energy generating materials and devices.

Representative achievements

• ACS applied materials & interfaces, 6(5), 3520-3527, 2014

• Materials & Design, 179, 107889, 2019

• Nature Communications, 5, 4929, 2014