IP Library Granted Patent US 12,048,912
Granted Patent B2
US 12,048,912 · App. 17/050,074 · Granted Jul 30, 2024

Lithium-adsorptive molded object

Inventors: Seung Taek Kuk (Pohang-si, KR); Young-Su Kwon (Pohang-si, KR); Woonkyoung Park (Pohang-si, KR); Kwang Seok Park (Pohang-si, KR); Young-Seon Ko (Seoul, KR); Heok Yang (Pohang-si, KR)
Assignees: POSCO CO., LTD; RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
B01J20/0248B01J20/28059B01J20/28085B01J20/3007B01J20/3021B01J20/3042C08L27/06C08L31/04B01J2220/46
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Quick Facts
Patent No.
US 12,048,912
App. No.
17/050,074
Granted
Jul 30, 2024
Kind
B2
Abstract

A lithium adsorption molded body includes a lithium adsorbent and a copolymer including a repeating unit represented by and a repeating unit represented by in which R 1 and R 2 are each independently hydrogen or a C1 to C10 alkyl group.

Claims (18)

1. A lithium adsorption molded body comprising:

a lithium adsorbent; and

a copolymer including a repeating unit represented by the following Chemical Formula 1 and a repeating unit represented by the following Chemical Formula 2,

(in the Chemical Formulas 1 and 2, R 1 and R 2 are each independently hydrogen or a C1 to C10 alkyl group).

2. The lithium adsorption molded body of claim 1 , wherein:

the lithium adsorbent includes at least one selected from the group consisting of manganese, aluminum, iron, and magnesium.

3. The lithium adsorption molded body of claim 1 , wherein:

the lithium adsorbent includes aluminum.

4. The lithium adsorption molded body of claim 1 , wherein:

the copolymer includes 80 to 87 wt % of the repeating unit represented by the Chemical Formula 1 and 13 to 20 wt % of the repeating unit represented by the Chemical Formula 2.

5. The lithium adsorption molded body of claim 1 , wherein:

the lithium adsorption molded body includes 80 to 95 wt % of the lithium adsorbent and 5 to 20 wt % of the copolymer.

6. The lithium adsorption molded body of claim 1 , wherein:

a specific surface area of the lithium adsorption molded body is 15 to 40 m 2 /g.

7. The lithium adsorption molded body of claim 1 , wherein:

the lithium adsorption molded body has 10 to 90 vol % of pores with 0.01 to 0.1 μm of a pore size and 10 to 90 vol % of the pores with 1 to 10 μm of the pore size with respect to the total pores in the lithium adsorption molded body.

8. The lithium adsorption molded body of claim 1 , wherein:

a compressive strength of the lithium adsorption molded body is 5 to 30 MPa.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2023
From: POSCO HOLDINGS INC.; RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
To: POSCO CO., LTD; RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
Reel/Frame 063212/0009 →
CHANGE OF NAME Recorded Sep 28, 2022
From: POSCO
To: POSCO HOLDINGS INC.
Reel/Frame 061561/0756 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 23, 2020
From: KUK, SEUNG TAEK; KWON, YOUNG-SU; PARK, WOONKYOUNG; PARK, KWANG SEOK; KO, YOUNG-SEON; YANG, HEOK
To: POSCO
Reel/Frame 054152/0246 →
Priority Claims (1)
KR 10-2018-0046971 · Apr 23, 2018 · national
Continuity (1)
Related Publication 20210094014A1 · Apr 1, 2021