US 10,964,987 C1 (13,191st)
Separator and energy storage device
Jianjian Yi, Fujian (CN); Xinzhi Zhang, Fujian (CN); Zengbin Wei, Fujian (CN); and Xinghua Tao, Fujian (CN)
Filed by Ningde Amperex Technology Limited, Fujian (CN)
Assigned to NINGDE AMPEREX TECHNOLOGY LIMITED, Fujian (CN)
Reexamination Request No. 90/019,470, Apr. 4, 2024.
Reexamination Certificate for Patent 10,964,987, issued Mar. 30, 2021, Appl. No. 16/013,887, Jun. 20, 2018.
Ex Parte Reexamination Certificate issued on Feb. 23, 2026.
Int. Cl. H01M 50/449 (2021.01); H01M 2/14 (2006.01); H01M 2/16 (2006.01); H01M 50/403 (2021.01); H01M 50/411 (2021.01); H01M 50/446 (2021.01)
CPC H01M 50/449 (2021.01) [H01M 50/403 (2021.01); H01M 50/411 (2021.01); H01M 50/446 (2021.01)]
OG exemplary drawing
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
The patentability of claims 1 and 17 is confirmed.
Claims 2-16 were not reexamined.
1. A separator, comprising: a porous substrate; and
a porous layer arranged on a surface of the porous substrate, wherein the porous layer comprises inorganic particles and a binder, and a ratio of Dv90 of the inorganic particles to the thickness of the porous layer is in a range from 0.3 to 3.0.