US 11,769,928 B2
Ceramic nanofiber separators
Yong Lak Joo, Ithaca, NY (US); Daehwan Cho, Austin, TX (US); and Yong Seok Kim, Ithaca, NY (US)
Assigned to Cornell University, Ithaca, NY (US)
Filed by CORNELL UNIVERSITY, Ithaca, NY (US)
Filed on May 10, 2021, as Appl. No. 17/316,035.
Application 17/316,035 is a continuation of application No. 16/220,874, filed on Dec. 14, 2018, granted, now 11,038,240.
Application 16/220,874 is a continuation of application No. 14/437,916, abandoned, previously published as PCT/US2013/066056, filed on Oct. 22, 2013.
Claims priority of provisional application 61/717,260, filed on Oct. 23, 2012.
Prior Publication US 2021/0273294 A1, Sep. 2, 2021
Int. Cl. H01M 50/44 (2021.01); H01M 50/431 (2021.01); H01M 50/446 (2021.01); H01M 10/0525 (2010.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01); H01M 50/434 (2021.01); H01M 50/403 (2021.01)
CPC H01M 50/44 (2021.01) [H01M 10/0525 (2013.01); H01M 50/434 (2021.01); H01M 50/446 (2021.01); H01M 50/489 (2021.01); H01M 50/491 (2021.01); H01M 50/403 (2021.01); Y02E 60/10 (2013.01); Y02T 10/70 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A battery separator comprising
a nanofiber mat, the nanofiber mat comprising at least one nanofiber, the at least one nanofiber comprising a continuous matrix material being continuous along at least 10% of the length of the nanofiber, and a plurality of discrete domains within the nanofiber, wherein the continuous matrix material comprises at least one ceramic material, a polymer, a ceramic material and a polymer, or an integrated material of ceramic and polymer, wherein the discrete domains are non-aggregated and are dispersed in a substantially uniform manner, along the length of the nanofiber, and wherein the continuous matrix material, the discrete domains, or both the continuous matrix material and the discrete domains comprise at least one ceramic material.