Electrolytes and electrolyte additives for energy storage devices comprising thiophene compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte, and at least one electrolyte additive selected from a thiophene compound. In some embodiments, the thiophene compound is a terthiophene or a thiophene oligomer.

A device for depassivation of an energy storage device having an anode, a cathode and a core with an electrolyte, the device including: a first switch configured to provide a positive input voltage to the anode; a second switch configured to provide a negative input voltage to the anode; and a controller configured to: detect that a first predetermined event related to a buildup of passivation has occurred with regard to the energy storage device; switch between a positive input voltage and a negative input voltage provided to the anode at a frequency sufficient to depassivate the anode; discontinue the switching when a second predetermined event related to passivation has occurred.

A device for depassivation of an energy storage device having an anode, a cathode and a core with an electrolyte, the device including: a first switch configured to provide a positive input voltage to the anode; a second switch configured to provide a negative input voltage to the anode; and a controller configured to: detect that a first predetermined event related to a buildup of passivation has occurred with regard to the energy storage device; switch between a positive input voltage and a negative input voltage provided to the anode at a frequency sufficient to depassivate the anode; discontinue the switching when a second predetermined event related to passivation has occurred.

The electronic device includes a first housing including a solar battery, a first display device, and a first structure body and a second housing including a second display device, a coil, an electric double-layer capacitor, a signal processing circuit, a charge and discharge control circuit, and a second structure body. The electronic device can be folded so that display surfaces of the first housing and the second housing face each other and the first structure body and the second structure body face each other. The solar battery is provided on a surface of the first housing on the rear side of the first display device. A pixel included in the first display device and a pixel included in the second display device each include a liquid crystal element, a first pixel circuit, a light-emitting element, and a second pixel circuit. The liquid crystal element includes a reflective electrode having an opening and can perform display by reflecting external light. The light-emitting element can perform display by emitting light toward the display surface through the opening.

Disclosed herein is a high-capacity slurry electrode for use in a flow energy storage system, comprising: an electrolyte; electrode active particles, distributed in the electrolyte, functioning as an electrode active material in an electrochemical flow capacitor storage system; and a redox active material, dissolved in the electrolyte, behaving as a pseudo-capacitor through a redox reaction on a surface of the electrode active material, wherein the high-capacity slurry electrode exhibits both capacitor properties based on the electrode active particles and pseudo-capacitor properties based on the redox active material.

The invention relates to micro supercapacitors and nanocomposite active materials and methods of fabrication thereof.

Improved electrodes and currents through the use of organic and organometallic high dielectric constant materials containing dispersed conductive particles in energy storage devices and associated methods are disclosed. According to an aspect, a dielectric material includes at least one layer of a substantially continuous phase material comprising a combination of organometallic having delocalized electrons, organic compositions and containing metal particles in dispersed form, in another aspect, the novel material is used with a porous electrode to further increase charge and discharge currents.

Methods of forming transition metal dichalcogenide aerogels are provided. Some methods include adding at least one solvent to one or more two-dimensional transition metal dichalcogenide sheets to form a transition metal dichalcogenide solution and freeze drying the transition metal dichalcogenide solution to form frozen transition metal dichalcogenide. The methods also include heating the frozen transition metal dichalcogenide to form a transition metal dichalcogenide aerogel.

Methods of forming transition metal dichalcogenide aerogels are provided. Some methods include adding at least one solvent to one or more two-dimensional transition metal dichalcogenide sheets to form a transition metal dichalcogenide solution and freeze drying the transition metal dichalcogenide solution to form frozen transition metal dichalcogenide. The methods also include heating the frozen transition metal dichalcogenide to form a transition metal dichalcogenide aerogel.

A dielectric material is provided. The dielectric material includes at least one layer of a substantially continuous phase material. The material is selected from the group consisting of an organic, organometallic, or combination thereof in which the substantially continuous phase material has delocalized electrons.