US Patent 11915871 Separator-free energy storage devices and methods

In one aspect, separator-free energy storage devices are disclosed. Such devices comprise a first electrode and a second electrode. In some embodiments, the first electrode is opposite the second electrode. The first and/or second electrodes are formed from a nanocomposite material. The nanocomposite material includes plurality of carbon nanostructures, each of which is at least partially coated with a layer of material comprising a transition metal oxide. In some embodiments, the coating layer is uniform or substantially uniform in one or more properties.