Researchers at the Korea Institute of Science and Technology have developed a high-capacity lithium-ion battery that is flexible enough to be stretched. Led by senior researcher Jeong Gon Son, the team created an accordion-like micro-structure, which gives structural stretchability to non-stretchable materials, and thus constructed a micro-inwardly curved electrode framework in a honeycomb shape. Schematic diagram of the stretchable battery manufacturing process. (Image courtesy of the Korea Institute of Science and Technology). The inwardly protruded honeycomb framework consisted of atom-thick graphene, which serves as a curtain, and carbon nanotubes, which formed a nano-size rope. In a paper published in the journal ACS Nano , the scientists said they were able to make the honeycomb-shaped composite framework inwardly protruded using a radial compression process. This process resembles the rolling of Korean rice rolls, or gimbap, and it resulted in the creation of stretchable properties. The structurally stretchable electrode consists solely […]