US 12,080,929 B2
Systems and reactors for storage of electrical energy
Wendelin Jan Stark, Langenthal (CH); and Urs Benjamin Lustenberger, Zürich (CH)
Assigned to ETH Zürich, Zürich (CH)
Appl. No. 17/433,355
Filed by ETH Zürich, Zürich (CH)
PCT Filed Feb. 25, 2020, PCT No. PCT/EP2020/054844
§ 371(c)(1), (2) Date Aug. 24, 2021,
PCT Pub. No. WO2020/173907, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 19159192 (EP), filed on Feb. 25, 2019.
Prior Publication US 2022/0149415 A1, May 12, 2022
Int. Cl. H01M 8/18 (2006.01); C01B 3/10 (2006.01); C25B 15/08 (2006.01); H01M 8/0656 (2016.01); H01M 8/22 (2006.01)
CPC H01M 8/186 (2013.01) [C01B 3/10 (2013.01); C25B 15/081 (2021.01); H01M 8/0656 (2013.01); H01M 8/22 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A reactor comprising
a reaction vessel defining an inner volume,
a compensation element,
an inlet and an outlet,
a heating element,
an insulation,
wherein
said inner volume is filled with a fixed bed;
said fixed bed contains or consists of particles of formula (I), FeOx (I), where 0≤x≤1.5; and
said fixed bed is free of cavities having a volume larger than 10000 mm3 and having principal radii that are at least 3 mm long, said principal radii being the three principal radii of the biggest ellipsoid that fits into the cavity;
said compensation element is adapted to adjust said inner volume.