US 11,870,059 B2
Immobilized selenium in a porous carbon with the presence of oxygen, a method of making, and uses of immobilized selenium in a rechargeable battery
Marta Sevilla Solis, Oviedo (ES); Antonio Benito Fuertes Arias, Oviedo (ES); Wen-Qing Xu, Sarver, PA (US); Xiaoming Li, Allison Park, PA (US); Shailesh Patkar, Irwin, PA (US); and Elgin E. Eissler, Renfrew, PA (US)
Assigned to CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS (CSIC), Madrid (ES); and II-VI DELAWARE, INC., Wilmington, DE (US)
Filed by II-VI Delaware, Inc., Wilmington, DE (US); and Consejo Superior de Investigaciones Cientificas (CSIC), Madrid (ES)
Filed on Feb. 7, 2020, as Appl. No. 16/784,703.
Application 16/784,703 is a continuation in part of application No. 15/434,655, filed on Feb. 16, 2017, granted, now 10,734,638.
Claims priority of provisional application 62/802,929, filed on Feb. 8, 2019.
Prior Publication US 2020/0227733 A1, Jul. 16, 2020
Int. Cl. H01M 4/36 (2006.01); H01M 4/587 (2010.01); H01M 4/38 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/364 (2013.01) [H01M 4/38 (2013.01); H01M 4/587 (2013.01); H01M 10/0525 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method of preparing an immobilized selenium body comprising:
(a) forming a porous foreign-templated carbon using a process comprising:
preparing a liquid solution comprising a carbon-source precursor and salt template particles;
freezing the liquid solution to form a solid mixture;
carbonizing the solid mixture to form a carbonized mixture comprising the porous foreign-templated carbon, the porous foreign-templated carbon having oxygen species therein and comprising micropores, mesopores and macropores, where 50 to 99% of the pores of the porous foreign-templated carbon are microporous; and
washing, filtering, and drying the carbonized mixture to obtain the porous foreign-templated carbon;
(b) forming a mixture of selenium and the porous foreign-templated carbon;
(c) heating the mixture of step (b) to a temperature above the melting temperature of selenium; and
(d) cooling the heated mixture of step (c) to ambient or room temperature to form the immobilized selenium body.