IP Library › Granted Patent US 12,620,652
Granted Patent B2
US 12,620,652 · App. 17/798,424 · Granted May 5, 2026

Electrode structure, electrode structure for positive electrode of metal-air battery comprising same, and methods for manufacturing same

Inventors: Jung-Ho Lee (Ansan-si, KR); Sambhaji Shivaji Shinde (Ansan-si, KR); Dong-Hyung Kim (Ansan-si, KR)
Assignee: FLEXOLYTE
H01M12/06H01M4/58H01M4/581H01M4/5825H01M4/9041
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Quick Facts
Patent No.
US 12,620,652
App. No.
17/798,424
Granted
May 5, 2026
Kind
B2
Abstract

An electrode structure for a positive electrode of a metal-air battery is provided. The electrode structure for a positive electrode of a metal-air battery is formed of a compound of copper, phosphorus, and sulfur and it can comprise a membrane in which a plurality of fibrillated fibers form a network.

Claims (12)

1 . An electrode structure, comprising:

a membrane formed of a plurality of fibers, the membrane comprising a compound of copper, phosphorus, and sulfur, wherein the compound has an orthorhombic crystal structure with a crystal plane ( 101 ), and wherein a peak value corresponding to the crystal plane ( 101 ) of the compound has a maximum value compared with a peak value corresponding to another crystal plane of the compound, as determined by XRD analysis.

2 . The electrode structure of claim 1 , wherein the peak value corresponding to the crystal plane ( 101 ) is observed in a range of 2θ values of 19° to 21°.

3 . A metal-air battery, comprising:

a positive electrode including the electrode structure of claim 1 and using oxygen as a positive electrode active material;

a negative electrode on the positive electrode; and

an electrolyte between the positive electrode and the negative electrode.

4 . The metal-air battery of claim 3 , wherein a lattice spacing is 0.466 nm as determined by HRTEM analysis of the membrane of the electrode structure in a discharged state of the metal-air battery.

5 . The metal-air battery of claim 3 , wherein a lattice spacing is 0.478 nm as determined by HRTEM analysis of the membrane of the electrode structure in a charged state of the metal-air battery.

6 . The metal-air battery of claim 3 , wherein a reference peak is observed in a range of 2θ values of 18.5° to 19.5° as determined by XRD analysis of the membrane of the electrode structure, and 2θ value at which the reference peak is observed is gradually decreased in a range of 2θ values of 19° to 21° as the metal-air battery is charged from a discharged state.

7 . The metal-air battery of claim 6 , wherein the reference peak is divided into two as the metal-air battery is charged from the discharged state.

8 . The metal-air battery of claim 3 , wherein the phosphorus has an oxidation number of 2 − in a discharged state of the metal-air battery, and the phosphorus has an oxidation number of 2 − and n − (2<n<3) in a charged state of the metal-air battery.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 5, 2025
From: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
To: FLEXOLYTE
Reel/Frame 071020/0268 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 10, 2022
From: LEE, JUNG-HO; SHINDE, SAMBHAJI SHIVAJI; KIM, DONG-HYUNG
To: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS
Reel/Frame 060770/0044 →
Priority Claims (5)
KR 10-2020-0021252 · Feb 20, 2020 · national
KR 10-2020-0021253 · Feb 20, 2020 · national
KR 10-2020-0021894 · Feb 21, 2020 · national
KR 10-2020-0164654 · Nov 30, 2020 · national
KR 10-2020-0164655 · Nov 30, 2020 · national
Continuity (1)
Related Publication 20220407149A1 · Dec 22, 2022
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