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US 11,764,364 B2Granted
Cathode, lithium-air battery comprising the same, and method of preparing the cathode
AssigneeSamsung Electronics Co., Ltd.
InventorsTaeyoung Kim, Hyunpyo Lee, Mokwon Kim, Jungock Park, Heungchan Lee
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Abstract
A cathode configured to use oxygen as a cathode active material includes: a porous film including a metal oxide, where a porosity of the porous film is about 50 volume percent to about 95 volume percent, based on a total volume of the porous film, and an amount of an organic component in the porous film is 0 to about 2 weight percent, based on a total weight of the porous film.
Claims19
A cathode configured to use oxygen as a cathode active material, the cathode comprising:
- a porous film comprising a metal oxide,
- wherein a porosity of the porous film is about 50 volume percent to about 95 volume percent, based on a total volume of the porous film, and
- an amount of an organic component in the porous film is 0 weight percent to about 2 weight percent, based on a total weight of the porous film,
- wherein a loading level of the porous film is about 4 milligrams per square centimeter to about 10 milligrams per square centimeter, and
- wherein the porous film is a self-standing film.
2 more elements
A cathode configured to use oxygen as a cathode active material, the cathode comprising:
- a porous film comprising a metal oxide,
- wherein the metal oxide is a lithium containing metal oxide represented by Formula 1,
- LixAyGzO3−δ Formula 1
- wherein, in Formula 1,
- A and G are each independently at least one of a Group 2 to a Group 16 element,
- 0<x<1, 0<y<1, 0<x+y≤1, 0<z≤1.5, is an oxygen vacancy content, and 0≤≤1.5, and
- wherein an amount of an organic component in the porous film is 0 weight percent to about 2 weight percent, based on a total weight of the porous film, and
- wherein the porous film is a self-standing film.
5 more elements
Dependencies are inferred from the claim text.