US 12,308,434 B2
Fast-charging, high-energy, flexible lithium-sulfur batteries based on hierarchically ordered sulfur particles and preparation method thereof
Moon Jeong Park, Pohang-si (KR); and Han Eol Kang, Pohang-si (KR)
Assigned to POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION, Pohang-si (KR)
Filed by POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION, Pohang-si (KR)
Filed on Dec. 17, 2021, as Appl. No. 17/553,947.
Claims priority of application No. 10-2021-0071519 (KR), filed on Jun. 2, 2021.
Prior Publication US 2022/0407072 A1, Dec. 22, 2022
Int. Cl. H01M 4/60 (2006.01); C08F 230/02 (2006.01); H01M 4/02 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/604 (2013.01) [C08F 230/02 (2013.01); H01M 10/0525 (2013.01); C08F 2800/20 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A cathode active material for a secondary battery comprising a poly(S-co-VPA) vulcanized polymer;
wherein the poly(S-co-VPA) vulcanized polymer comprises one or more moieties selected from the following Chemical Formulas SVPA1 and SVPA2 within a molecular structure,
the poly(S-co-VPA) vulcanized polymer has a three-dimensional porous network formed throughout the particles thereof, and
the three-dimensional porous network further contains sulfur allotropes physically supported within pores:

OG Complex Work Unit Chemistry
In formula, custom character represents a bonding position, and
n is an integer between 1 and 20.