US 11,688,884 B2
Rechargeable lithium battery
Kwang-Jo Cheong, Yongin-si (KR); Yong-Beom Lee, Yongin-si (KR); Myung-Ro Lee, Yongin-si (KR); and Su-Min Lee, Yongin-si (KR)
Assigned to Samsung SDI Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG SDI CO., LTD., Yongin-si (KR)
Filed on Mar. 5, 2021, as Appl. No. 17/193,371.
Application 17/193,371 is a division of application No. 16/105,912, filed on Aug. 20, 2018, granted, now 10,978,688.
Application 16/105,912 is a continuation of application No. 14/303,585, filed on Jun. 12, 2014, granted, now 10,056,594, issued on Aug. 21, 2018.
Claims priority of application No. 10-2013-0068436 (KR), filed on Jun. 14, 2013.
Prior Publication US 2021/0194094 A1, Jun. 24, 2021
Int. Cl. H01M 10/0569 (2010.01); H01M 10/0567 (2010.01); H01M 4/38 (2006.01); H01M 10/0525 (2010.01); H01M 50/446 (2021.01); H01M 50/434 (2021.01); H01M 50/414 (2021.01); H01M 50/457 (2021.01); H01M 50/451 (2021.01)
CPC H01M 10/0569 (2013.01) [H01M 4/386 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 50/414 (2021.01); H01M 50/434 (2021.01); H01M 50/446 (2021.01); H01M 50/451 (2021.01); H01M 50/457 (2021.01); H01M 2300/004 (2013.01); H01M 2300/0042 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A rechargeable lithium battery comprising:
a positive electrode comprising a positive active material comprising nickel and represented by LiaNibEcGdO2 (0.90≤a≤1.8, 0≤b≤0.9, 0≤c≤0.5 and 0.001≤d≤0.1, E is Co; G is Al, Cr, Mn, Fe, Mg, La, Ce, Sr, V, or combinations thereof);
a negative electrode comprising a negative active material comprising a Si-based material and a carbon-based material, the Si-based material being a composite consisting of Si and C, or silicon oxide, or a combination thereof;
an electrolyte solution comprising:
a lithium salt, a non-aqueous organic solvent, and an additive;
the non-aqueous organic solvent comprising a cyclic carbonate and a linear carbonate, the linear carbonate comprising ethylmethyl carbonate and dimethyl carbonate; and
the additive comprising at least one selected from fluoroethylene carbonate, propane sultone, succinonitrile, adiponitrile, or combinations thereof;
a separator between the positive electrode and the negative electrode, the separator comprising a porous substrate and a coating layer positioned on at least one side of the porous substrate, the coating layer comprising an inorganic compound comprising Al (Aluminum).