	US 12,424,632 B1
	Silicon-based anode water-soluble binder, preparation method and application thereof
Yannan Zhang, Kunming (CN); Yiyong Zhang, Kunming (CN); Yingjie Zhang, Kunming (CN); Peng Dong, Kunming (CN); Xue Li, Kunming (CN); Jiyue Hou, Kunming (CN); and Wengxiang Ai, Kunming (CN)
Assigned to Kunming University of Science and Technology, Kunming (CN)
Filed by Kunming University of Science and Technology, Kunming (CN)
Filed on Feb. 12, 2025, as Appl. No. 19/051,230.
Claims priority of application No. 202410246067.7 (CN), filed on Mar. 5, 2024.
Int. Cl. H01M 4/62 (2006.01); H01M 4/04 (2006.01); H01M 4/1395 (2010.01); H01M 4/38 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)

CPC H01M 4/622 (2013.01) [H01M 4/0404 (2013.01); H01M 4/1395 (2013.01); H01M 4/386 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01)]

10 Claims

1. A silicon-based anode water-soluble binder, comprising a high molecular polymer containing hydroxyl and carboxyl groups, a low-molecular-weight organic acid, and water;

a mass ratio of the high molecular polymer and the low-molecular-weight organic acid is 6:4;

a mass ratio of a sum of masses of the high molecular polymer and the low-molecular-weight organic acid to the water is 1:9;

preparation steps of the silicon-based anode water-soluble binder are as follows:

after dispersing the high molecular polymer and the low-molecular-weight organic acid uniformly in the water, performing a heating and stirring reaction, and then obtaining the silicon-based anode water-soluble binder;

a temperature of the heating and stirring reaction is 80° C., a rotating speed of the heating and stirring reaction is 600 rpm, and a time of the heating and stirring reaction is 12 h; and

the high molecular polymer is sodium hyaluronate; and the low-molecular-weight organic acid is malic acid.