An apparatus comprising: a module; a substrate; and electrolyte between the module and the substrate, wherein an electronic component is formed between the module and the substrate and wherein the electrolyte is configured to function as the electrolyte in the electronic component and also as the adhesive to attach the module to the substrate.

A method for fabricating an electrode includes: determining a thickness of an active layer; selecting lithium (Li) foil having a specified thickness; determining widths of one or more Li strips based on an active layer to Li layer weight ratio or volume ratio; laminating the active layer onto a conductive substrate; forming one or more grooves in the active layer exposing a bare surface of the conductive substrate; and pressing the one or more Li strips into the one or more grooves, wherein widths of the one or more grooves are slightly larger than the widths of the Li strips.

Solid-state supercapacitors and microsupercapacitors comprising printed graphene electrodes and related methods of preparation.

Solid-state supercapacitors and microsupercapacitors comprising printed graphene electrodes and related methods of preparation.

A method for the preparation of an electrode comprising a substrate made of an aluminium based material, vertically aligned carbon nanotubes and an electrically conductive polymer matrix, the method comprising the following successive steps: (a) synthesising, on a substrate made of an aluminium based material, a carpet of vertically aligned carbon nanotubes according to the technique of CVD (Chemical Vapour Deposition) at a temperature less than or equal to 650° C.; (b) electrochemically depositing the polymer matrix on the carbon nanotubes from an electrolyte solution including at least one precursor monomer of the matrix, at least one ionic liquid and at least one protic or aprotic solvent. Further disclosed is the prepared electrode and a device for storing and returning electricity such as a supercapacitor comprising the electrode.

A method for the preparation of an electrode comprising a substrate made of an aluminium based material, vertically aligned carbon nanotubes and an electrically conductive polymer matrix, the method comprising the following successive steps: (a) synthesising, on a substrate made of an aluminium based material, a carpet of vertically aligned carbon nanotubes according to the technique of CVD (Chemical Vapour Deposition) at a temperature less than or equal to 650° C.; (b) electrochemically depositing the polymer matrix on the carbon nanotubes from an electrolyte solution including at least one precursor monomer of the matrix, at least one ionic liquid and at least one protic or aprotic solvent. Further disclosed is the prepared electrode and a device for storing and returning electricity such as a supercapacitor comprising the electrode.

Electrolytes and electrolyte additives for energy storage devices comprising a sulfonate ester compound 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 sulfonate ester compound.

Electrolytes and electrolyte additives for energy storage devices comprising a sulfonate ester compound 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 sulfonate ester compound.

An electrode including a binary metal oxide, a method for preparing an electrode including the same, and a supercapacitor are provided. The binary metal oxide includes a first metal element and a second metal element. The first metal element includes a first transition metal element with two valence states. The second metal element is different from the first metal element and is selected from one of Mn, Fe, Ni, Zn, Al, Li, Ba, and La.

An electrode including a binary metal oxide, a method for preparing an electrode including the same, and a supercapacitor are provided. The binary metal oxide includes a first metal element and a second metal element. The first metal element includes a first transition metal element with two valence states. The second metal element is different from the first metal element and is selected from one of Mn, Fe, Ni, Zn, Al, Li, Ba, and La.