US 11,920,484 B2
Energy storage device and method for storing energy
Sasha Savic, Wettingen (CH); Vladimir Vassiliev, Turgi (CH); Dylan Cuskelly, Edgeworth (AU); Sergey Pancheshnyi, Zurich (CH); and Erich Herold Kisi, Merewether (AU)
Assigned to E2S Power AG, Wilen b. Wollerau (CH)
Appl. No. 17/619,180
Filed by E2S Power AG, Wilen b. Wollerau (CH)
PCT Filed Mar. 23, 2020, PCT No. PCT/EP2020/057977
§ 371(c)(1), (2) Date Dec. 14, 2021,
PCT Pub. No. WO2020/254001, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 19180472 (EP), filed on Jun. 17, 2019.
Prior Publication US 2022/0307386 A1, Sep. 29, 2022
Int. Cl. F01D 25/00 (2006.01)
CPC F01D 25/00 (2013.01) [F05D 2220/31 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An energy storage device with at least one energy storage unit comprising
a thermal storage element made of a solid material, for storing thermal energy;
an electrical heating device for heating the thermal storage element by means of electric energy; and
an electric insulation, in order to electrically insulate the electrical heating device from the thermal storage element,
wherein the electric insulation is a gas insulation.