	US 12,334,585 B2
	Separator media for electrochemical cells
Hyun Sung Lim, Midlothian, VA (US); and Pankaj Arora, Chesterfield, VA (US)
Assigned to DUPONT SAFETY & CONSTRUCTION, INC., Wilmington, DE (US)
Filed by DUPONT SAFETY & CONSTRUCTION, INC., Wilmington, DE (US)
Filed on May 14, 2020, as Appl. No. 15/931,732.
Application 15/931,732 is a continuation of application No. 14/442,412, abandoned, previously published as PCT/US2013/069127, filed on Nov. 8, 2013.
Claims priority of provisional application 61/726,168, filed on Nov. 14, 2012.
Prior Publication US 2020/0274122 A1, Aug. 27, 2020
Int. Cl. H01M 50/44 (2021.01); D01D 5/11 (2006.01); D01D 10/02 (2006.01); D01F 6/04 (2006.01); D01F 6/06 (2006.01); D04H 1/724 (2012.01); D04H 3/007 (2012.01); D04H 3/009 (2012.01); D04H 3/011 (2012.01); D04H 3/16 (2006.01); D06M 11/54 (2006.01); H01G 9/02 (2006.01); H01G 11/52 (2013.01); H01M 6/04 (2006.01); H01M 10/24 (2006.01); H01M 10/26 (2006.01); H01M 10/34 (2006.01); H01M 50/403 (2021.01); H01M 50/417 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01); H01M 50/494 (2021.01)

CPC H01M 50/44 (2021.01) [D01D 5/11 (2013.01); D01D 10/02 (2013.01); D01F 6/04 (2013.01); D04H 1/724 (2013.01); D04H 3/011 (2013.01); D04H 3/16 (2013.01); D04H 3/166 (2013.01); D06M 11/54 (2013.01); H01G 9/02 (2013.01); H01G 11/52 (2013.01); H01M 6/045 (2013.01); H01M 10/26 (2013.01); H01M 50/403 (2021.01); H01M 50/417 (2021.01); H01M 50/489 (2021.01); D01F 6/06 (2013.01); D04H 3/007 (2013.01); D04H 3/009 (2013.01); H01M 10/24 (2013.01); H01M 10/345 (2013.01); H01M 50/491 (2021.01); H01M 50/494 (2021.01); H01M 2220/10 (2013.01); H01M 2220/20 (2013.01); Y02E 60/13 (2013.01)]

14 Claims

1. A nonwoven sheet comprising polymeric plexifilamentary fibers wherein the sheet is whole surface bonded and has a surface area of 0.5-1.5 m²/gram, and a maximum pore size that is equal to or more than 2.5 times the mean flow pore size and more than 11 times the minimum pore size.