US 12,476,250 B2
Electrochemical cells based on intercalation and deintercalation of chalcogen anions
Laurent Cario, Nantes (FR); Shunsuke Sasaki, North Oxford (GB); Stéphane Jobic, Bouguenais (FR); Maria Teresa Caldes, Nantes (FR); Etienne Janod, La Chapelle sur Erdre (FR); Benoît Corraze, Nantes (FR); Isabelle Braems-Abbaspour, Nantes (FR); Louis-Béni Mvele, Nantes (FR); and Catherine Deudon, Nantes (FR)
Assigned to Centre national de la recherche scientifique, Paris (FR)
Appl. No. 18/259,259
Filed by Centre national de la recherche scientifique, Paris (FR); and Nantes Université, Nantes (FR)
PCT Filed Dec. 24, 2021, PCT No. PCT/EP2021/087650
§ 371(c)(1), (2) Date Jun. 23, 2023,
PCT Pub. No. WO2022/136707, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 2014131 (FR), filed on Dec. 24, 2020.
Prior Publication US 2024/0055601 A1, Feb. 15, 2024
Int. Cl. H01M 4/58 (2010.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/66 (2006.01); H01M 10/0565 (2010.01)
CPC H01M 4/5815 (2013.01) [H01M 4/0404 (2013.01); H01M 4/661 (2013.01); H01M 10/0565 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0082 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An electrochemical cell comprising:
a positive electrode comprising an electroactive material comprising a chalcogen oligomer, wherein said chalcogen oligomer represents a linear or non-linear sequence of 2 to 6 sulfur atoms, and wherein said electroactive material reversibly deintercalates an anion of sulfur by reduction and reintercalates said sulfur anion by oxidation, while maintaining the crystal structure of said electroactive material;
a negative electrode; and
an electrolyte layer sandwiched between said positive and said negative electrodes.