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US 12,002,990 B2Granted
Porous separator and lithium secondary battery comprising same
AssigneeLG Energy Solution, Ltd.
InventorsWoongchul Choi, Junghun Choi, Yonghee Kang, Minchul Jang, Suk Il Youn, Byoungkuk Son
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Abstract
The present invention relates to a porous separator comprising a porous layer containing a plurality of plate-type inorganic particles and a first binder polymer positioned on part or all of the surface of the plate-type inorganic particles to connect and fix between the plate-type inorganic particles; and a metal layer formed on any one surface of the porous layer, and a lithium secondary battery comprising the same.
Claims15
A porous separator comprising:
- a porous layer containing a plurality of plate-shaped inorganic particles and a first binder polymer positioned on a part or all of a surface of the plate-shaped inorganic particles to connect and fix between the plate-shaped inorganic particles;
- a metal layer disposed on a surface of the porous layer;
- and
- a ceramic coating layer disposed on another surface of the porous layer which is opposite to the surface on which the metal layer is disposed,
- wherein the porous separator does not include a polymer other than the first binder polymer, and
- the ceramic coating layer includes BaSrTiO3 or PbLaZrTiO3.
3 more elements
Dependencies are inferred from the claim text.