An electrochemical cell includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode and/or the negative electrode includes a penetrating portion that penetrates the electrodes in the thickness direction. Further...

An electrochemical cell includes a positive electrode, a negative electrode, and an electrolyte solution. The positive electrode and/or the negative electrode includes a penetrating portion that penetrates the electrodes in the thickness direction. Further...

An electrode active material comprising a silicon-containing carbon-based composite material obtained by: preparing a cured product of (A) a silicon-free organic compound having a crosslinkable group, and (B) a silicon-containing compound capable of crossl...

A present invention provides a lithium ion storage device capable of reliably doping a negative active material of a negative plate (19) with lithium ions generated through dissolution of a lithium metal plate (31) disposed in an electrode group (11). A co...

A high density capacitor 12, a method of manufacturing it, and applications of it are described. The capacitor 12 is an electrochemical capacitor using a metal ion accepting cathode 22 and a metal ion accepting anode 26 and a amorphous solid electrolyte 24...

An electrochemical device of the present invention comprises a positive electrode, a negative electrode and an electrolyte, wherein at least one of the positive electrode and the negative electrode includes a compound having a structure represented by the ...

This invention relates to an electrochemical cell comprising a cathode containing a proton-conducting compound as an electrode active material, an anode containing a proton-conducting compound as an electrode active material and an aqueous electrolytic sol...

This invention provides an electrode for an electrochemical cell in which an active material in an electrode material is a proton-conducting compound, wherein the electrode material comprises a nitrogen-containing heterocyclic compound or a polymer having ...

The present invention provides a secondary battery and a capacitor which may provide an excellent high rate and cycle characteristic as well as sufficient electromotive force and capacity. The secondary battery and a capacitor have an active material of an...

An electrochemical capacitor comprising a pair of oxidation-reduction active electrodes and an electrolyte solution or an ion-conductive solid electrolyte between the electrodes, wherein the electrodes contain a specific copolymer, thereby providing the el...