Kyu Hwan Oh

TL;DR: The synthesis of hydrogels from polymers forming ionically and covalently crosslinked networks is reported, finding that these gels’ toughness is attributed to the synergy of two mechanisms: crack bridging by the network of covalent crosslinks, and hysteresis by unzipping thenetwork of ionic crosslinks.

TL;DR: An ionic touch panel based on a polyacrylamide hydrogel containing lithium chloride salts is demonstrated, which can be operated under more than 1000% areal strain without sacrificing its functionalities.

TL;DR: In this paper, the effect of the carbon content on the physicochemical and electrochemical properties of C-Li4Ti5O12 particles was extensively studied, and it was shown that uniformly coated carbon layer from pitch inhibited the growth of primary particles, maintaining the spherical morphology, similar to the TiO2 precursor in size and shape, and also enabling partial reduction of the starting Ti4+ to Ti3+.

TL;DR: A double coating process is reported that greatly improves the uniformity of the carbon coating on both the primary and secondary LiFePO particles, resulting in electrodes having high volumetric energy density and rate capability.

TL;DR: In this paper, the topology of the telephone cord buckling of compressed diamond-like carbon (DLC) on glass substrates has been characterized with atomic force microscopy (AFM) and with the focused ion beam (FIB) imaging system.