Carbon ONE New Energy Group Co., Ltd. (also known as Carbon One or C-ONE) is a privately held Chinese manufacturer of advanced battery materials, founded in 2021. The company's headquarters are located in Quzhou, Zhejiang, China, with a corporate office in the Jiangshan Economic Development Zone. It is venture capital-backed and has established multiple production bases across China.
The company specializes in manufacturing lithium battery graphite anode materials for energy storage applications. Its product offerings include artificial graphite anodes, natural graphite anodes, silicon-based anodes, and integrated artificial SEI anodes, as well as anode materials for Na-ion and solid-state batteries. Carbon ONE New Energy Group provides integrated artificial SEI-film graphite and silicon-carbon negative electrodes and operates a vertically integrated production network to supply battery manufacturers. The company has signed projects for significant silicon carbon anode production, including an annual 30,000 metric ton new-type silicon carbon anode production site.
Carbon ONE New Energy Group currently has a defensive patent litigation posture, appearing as a defendant in one tracked case with no plaintiff cases. This indicates it is an operating company defending its products and operations against patent infringement claims. The sole tracked litigation is in the Eastern District of Texas, a venue known for patent plaintiff activity.
The company is involved in a prominent patent infringement case, Sila Nanotechnologies, Inc. et al. v. Carbon ONE New Energy Group Co., Ltd. et al., filed on June 18, 2026, in the U.S. District Court for the Eastern District of Texas. Sila Nanotechnologies, Inc., a U.S. battery materials leader, has also filed a parallel complaint with the U.S. International Trade Commission (ITC) under Section 337. Sila alleges that Carbon ONE, along with its affiliated entities Zhejiang Lichen New Material Technology Co., Ltd. and Carbon One New Energy (Hangzhou) Co., Ltd., is infringing its foundational silicon-carbon (Si/C) anode technology, branded as "Titan Silicon." Sila is seeking remedies including an exclusion order to block the importation of allegedly infringing Si/C anode materials and related downstream products into the United States.