US 11,888,167 B2
Catalyst for rechargeable energy storage devices and method for making the same
Xiaoyi Cai, Singapore (SG); Zexiang Shen, Singapore (SG); and Linfei Lai, Singapore (SG)
Assigned to Nanyang Technological University, Singapore (SG)
Filed by Nanyang Technological University, Singapore (SG)
Filed on Aug. 3, 2021, as Appl. No. 17/393,045.
Claims priority of application No. 10202007375S (SG), filed on Aug. 3, 2020.
Prior Publication US 2022/0037675 A1, Feb. 3, 2022
Int. Cl. H01M 4/90 (2006.01); H01M 4/86 (2006.01); H01M 4/88 (2006.01); H01M 12/08 (2006.01)
CPC H01M 4/9041 (2013.01) [H01M 4/8652 (2013.01); H01M 4/8825 (2013.01); H01M 4/8882 (2013.01); H01M 4/8892 (2013.01); H01M 4/9083 (2013.01); H01M 12/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A catalyst for rechargeable energy storage devices comprising:
a first transition metal and a second transition metal, wherein the first and second transition metals are formed on carbon nanotubes;
the carbon nanotubes are doped with nitrogen (N) and phosphorous (P), wherein the carbon nanotubes have edges and interlayer spaces, and are axially aligned; and
the first and second transition metals are formed as bimetal centers that are principally located at the edges or the interlayer spaces of the carbon nanotubes providing catalytically active sites.