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(11)

EP 4 059 034 A1

(12)

(43) Date of publication: 21.09.2022 Bulletin 2022/38 (21) Application number: 20804692.0 (22) Date of filing: 09.11.2020

(51) International Patent Classification (IPC):  H01G 11/28(2013.01) H01G 11/38(2013.01) H01G 11/36(2013.01) H01G 11/86(2013.01) (52) Cooperative Patent Classification (CPC): H01G 11/36; H01G 11/38; H01G 11/86; H01G 11/28; Y02T 10/70 (86) International application number: PCT/IB2020/060530 (87) International publication number: WO 2021/094897 (20.05.2021 Gazette 2021/20)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 13.11.2019 IT 201900021096 (71) Applicant: Fondazione Istituto Italiano di Tecnologia 16163 Genova (IT)

(72) Inventors: AKBARI GARAKANI, Mohammad 16121 Genova (IT) BELLANI, Sebastiano 16162 Genova (IT) NAJAFI, Leyla 16159 Genova (IT) DEL RIO CASTILLO, Antonio Esau 16127 Genova (IT) PELLEGRINI, Vittorio 55010 Gragnano (Lucca) (IT) BONACCORSO, Francesco 16159 Genova (IT) (74) Representative: Cesa, Roberta  Buzzi, Notaro & Antonielli d'Oulx S.p.A. Corso Vittorio Emanuele ll, 6 10123 Torino 10123 Torino (IT)