FIELD: electricity.
SUBSTANCE: energy accumulation device includes the first electrode (110, 510), comprising the first array of channels (111, 512), containing the first electrolyte (150, 514), and the second electrode (120, 520), comprising the second array of channels (121, 522), containing the second electrolyte (524). The first electrode has the first surface (115, 511), and the second electrode has the second surface (125, 521). At least one of the first and second electrodes represents an electrode from porous silicon, and at least one of the first and second surfaces comprises a layer (535) of passivation, which contains the surface completed with hydrocarbon.
EFFECT: increased operating voltages of an energy accumulation device, reliability and service life.
4 cl, 9 dwg
