Abstract: invention relates to a distributing structure (10) for a fuel cell (1) in the form of a microporous layer, having: a multiplicity of particles (11), wherein the particles (11) are designed to provide the distributing structure (10) with mechanical stability and electrical conductivity, and wherein a multiplicity of pores (P) are formed between the particles (11) for the purposes of distributing reactants (H2, O2) through the distributing structure (10) and of discharging a product water (H2O), the invention providing, for this purpose, a multiplicity of fibres (12), which are distributed within the microporous layer such that the distributing structure (10) has a first diffusion coefficient (D1) in a first planar direction (x) in relation to the plane of extent (x, y) of the microporous layer, and that the distributing structure (10) has a second diffusion coefficient (D2) in a second planar direction (y) in relation to the plane of extent

Abstract: A hybrid supercapacitor includes positive and negative electrodes each having the following composition: 1-5% by mass of a binder; 2.5-7.5% by mass of a conductive additive; and 87.5-96.5% by mass of an active material, where the active material of the positive electrode is a mixture of (a) 30-40% by mass LiMn2O4 (LMO) and (b) 60-70% by mass activated carbon, and the active material of the negative electrode is a mixture of (a) 20-30% by mass Li4Ti5O12 (LTO) and (b) 70-80% by mass activated carbon, and where the ratio of the active mass of the negative electrode to that of the positive electrode is in a range of 0.4-1.2.

Abstract: A hybrid supercapacitor has two electrodes, one of which functions as a cathode, and the other as an anode. The hybrid supercapacitor further includes an electrolyte arranged between the cathode and the anode. The electrolyte contains a solvent selected from the group consisting of methanol, 1-propanol, 1-heptanol, ethyl acetoacetate, ethylene glycol, diethylene glycol, glycerol, benzyl alcohol, di-n-butyl phthalate and mixtures thereof.

Abstract: An aqueous electrolyte for a capacitor contains at least one transition metal complex. An aqueous electrolyte containing at least one transition metal complex can be used in a supercapacitor, in a pseudocapacitor, or in a hybrid supercapacitor. A hybrid supercapacitor contains an aqueous electrolyte, which contains at least one transition metal complex.

Abstract: A hybrid supercapacitor, including at least one negative electrode that includes a statically capacitive active material, an electrochemical redox active material, or a mixture thereof, at least one positive electrode that includes a statically capacitive active material, an electrochemical redox active material, or a mixture thereof, at least one separator that is situated between the at least one negative electrode and the at least one positive electrode, and an electrolyte composition, with the condition that at least one electrode includes a statically capacitive active material, and at least one electrode includes an electrochemical redox active material, the electrolyte composition being a liquid electrolyte composition and including at least one liquid, aprotic, organic solvent, at least one conducting salt, and at least one additive.

Abstract: A hybrid supercapacitor, including at least one negative electrode having a statically capacitive active material, an electrochemical redox-active material, or a mixture of them; at least one positive electrode having a statically capacitive active material, an electrochemical redox-active material, or a mixture of them; at least one separator situated between the at least one negative electrode and the at least one positive electrode; and an electrolyte mixture; with the provision that at least one electrode includes a statically capacitive active material, and at least one electrode includes an electrochemical, redox-active material; the electrolyte mixture being a liquid electrolyte mixture and including at least one liquid, aprotic, organic solvent, at least one conducting salt, and at least one at least partially halogenated, aromatic compound.

Abstract: A symmetric hybrid supercapacitor has two internally hybridized electrodes having both faradic and capacitatively active materials. More specifically, the symmetric hybrid supercapacitor has a cathode and an anode. The cathode contains LiMnxFe1-xPO4. The LiMnxFe1-xPO4 is used as electrode material for the hybrid supercapacitor. The condition applies that 0.1<x<0.9.

Abstract: A hybrid supercapacitor, including at least one negative electrode that includes a statically capacitive active material, an electrochemical redox active material, or a mixture thereof, at least one positive electrode that includes a statically capacitive active material, an electrochemical redox active material, or a mixture thereof, at least one separator that is situated between the at least one negative electrode and the at least one positive electrode, and an electrolyte composition, with the condition that at least one electrode includes a statically capacitive active material, and at least one electrode includes an electrochemical redox active material, the electrolyte composition being a liquid electrolyte composition and including at least one liquid, aprotic, organic solvent, at least one conducting salt, and at least one additive.

Abstract: A hybrid supercapacitor, including at least one negative electrode having a statically capacitive active material, an electrochemical redox-active material, or a mixture of them; at least one positive electrode having a statically capacitive active material, an electrochemical redox-active material, or a mixture of them; at least one separator situated between the at least one negative electrode and the at least one positive electrode; and an electrolyte mixture; with the provision that at least one electrode includes a statically capacitive active material, and at least one electrode includes an electrochemical, redox-active material; the electrolyte mixture being a liquid electrolyte mixture and including at least one liquid, aprotic, organic solvent, at least one conducting salt, and at least one at least partially halogenated, aromatic compound.

Abstract: A supercapacitor has a cathode and an anode. At least one of the cathode and the anode of the supercapacitor contains at least one material which stores polyvalent cations. Additionally, the supercapacitor also has an electrolyte. The electrolyte contains an electrolyte salt, and the electrolyte salt has at least one polyvalent cation.

Abstract: An aqueous electrolyte for a capacitor contains at least one transition metal complex. An aqueous electrolyte containing at least one transition metal complex can be used in a supercapacitor, in a pseudocapacitor, or in a hybrid supercapacitor. A hybrid supercapacitor contains an aqueous electrolyte, which contains at least one transition metal complex.

Abstract: A hybrid supercapacitor has two electrodes, one of which functions as a cathode, and the other as an anode. The hybrid supercapacitor further includes an electrolyte arranged between the cathode and the anode. The electrolyte contains a solvent selected from the group consisting of methanol, 1-propanol, 1-heptanol, ethyl acetoacetate, ethylene glycol, diethylene glycol, glycerol, benzyl alcohol, di-n-butyl phthalate and mixtures thereof.

Abstract: A hybridized electrode includes from 5% by weight to 10% by weight of a binder which has a capacitance of at least 100 F/g. A hybrid supercapacitor includes at least one hybridized electrode of this type.

Abstract: A symmetric hybrid supercapacitor has two internally hybridized electrodes having both faradic and capacitatively active materials. More specifically, the symmetric hybrid supercapacitor has a cathode and an anode. The cathode contains LiMnxFe1-xPO4. The LiMnxFe1-xPO4 is used as electrode material for the hybrid supercapacitor. The condition applies that 0.1<x<0.9.

Abstract: A hybrid supercapacitor includes an anode and a cathode. The cathode is applied to a first collector, and the anode is applied to a second collector. The hybrid supercapacitor also includes an electrolyte that is inserted between the anode and the cathode. The electrolyte contains an ionic liquid as a solvent.

Abstract: A direct current energy source includes a hybrid supercapacitor, a positive electrical contact element, and a negative electrical contact element. The positive electrical contact element and the negative electrical contact element are configured to electrically connect the direct current energy source simultaneously to an electrical consumer and to another similar direct current energy source.