US 12,469,850 B2
Phosphorus-carbon cathode material based on red phosphorus and preparation method thereof
Lei Zheng, Hubei (CN); Xiaofei Gong, Hubei (CN); Weiyun Shen, Hubei (CN); Huijuan Ma, Hubei (CN); Benjun Xi, Hubei (CN); Baorui Luo, Hubei (CN); and Ruan Chi, Hubei (CN)
Assigned to HUBEI THREE GORGES LABORATORY, (CN)
Filed by HUBEI THREE GORGES LABORATORY, Hubei (CN)
Filed on Apr. 10, 2024, as Appl. No. 18/631,592.
Application 18/631,592 is a continuation of application No. PCT/CN2023/107270, filed on Jul. 13, 2023.
Claims priority of application No. 202211312036.4 (CN), filed on Oct. 25, 2022.
Prior Publication US 2024/0258523 A1, Aug. 1, 2024
Int. Cl. H01B 1/06 (2006.01); H01M 4/04 (2006.01); H01M 4/587 (2010.01)
CPC H01M 4/587 (2013.01) [H01B 1/06 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A phosphorus-carbon composite negative electrode material, comprising red phosphorus and a composite carbon nanosphere with a three dimension skeleton structure wherein,
the red phosphorus are in a form of a 60-100 mesh powder or a 10-20 mesh microsphere particles, and uniformly compounded with the composite carbon nanosphere;
inside of the composite carbon nanosphere is embedded with a transition metal compound, a melting point of the transition metal compound is less than 200° C.;
the transition metal compound is a reaction product of a metal source and a non-metal source, and
the metal source is selected from the group consisting of fluoride, chloride, nitrate, sulfate and carbonate of tin, titanium, cadmium, iron, cobalt chromium, manganese, germanium or nickel, the non-metal source is one or more selected from the group consisting of sulfide, selenide, telluride and phosphide.