	US 11,728,544 B2
	Separators for electrochemical cells
Zhong Xu, Holden, MA (US); and Steven A. Carlson, Cambridge, MA (US)
Assigned to LG Energy Solution, Ltd., Seoul (KR); and Sihl GmbH, Düren (DE)
Filed by LG ENERGY SOLUTION, LTD., Seoul (KR); and Sihl GmbH, Düren (DE)
Filed on Nov. 3, 2020, as Appl. No. 17/88,351.
Application 17/088,351 is a continuation of application No. 15/616,399, filed on Jun. 7, 2017, granted, now 10,833,307.
Application 15/616,399 is a continuation of application No. 13/744,702, filed on Jan. 18, 2013, abandoned.
Application 13/744,702 is a continuation of application No. PCT/US2011/001274, filed on Jul. 18, 2011.
Claims priority of provisional application 61/399,883, filed on Jul. 19, 2010.
Prior Publication US 2021/0175581 A1, Jun. 10, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 50/446 (2021.01); H01G 9/02 (2006.01); H01G 11/52 (2013.01); H01M 10/0525 (2010.01)

CPC H01M 50/446 (2021.01) [H01G 9/02 (2013.01); H01G 11/52 (2013.01); H01M 10/0525 (2013.01); Y02E 60/13 (2013.01); Y10T 428/249978 (2015.04)]

22 Claims

12. An electrochemical cell comprising:

an anode,

a cathode,

an organic electrolyte comprising a lithium salt, and

a separator interposed between the anode and the cathode, wherein the separator comprises a microporous layer, the microporous layer comprising:

(a) a sulfonic acid-surface-modified hydrated aluminum oxide; and

(b) an organic polymer that is soluble in aprotic solvents.