| 초록 |
Deformable, stretchable electronics are considered as next-generation devices; however, to realize highly flexible electronics, it is first necessary to develop a deformable energy device. Herein, a crumply and highly flexible lithium-ion battery is realized by using microfiber mat electrodes in which the microfibers are wound or webbed with conductive nanowires. This electrode architecture guarantees extraordinary mechanical durability without any increase in resistance after folding 1,000 times. Its areal energy density is easily controllable by the number of folded stacks of a piece of the electrode mat. As another deformable batteries, we demonstrate the fabrication of highly stretchable hybrid carbon/polymer composite which was found to effectively retain its electrical conductivity under high strain (~200%). We have developed a stretchable aqueous rechargeable lithium-ion batteries which exhibit excellent rate capability and outstanding durability. |
