“Flower-like” Li4Ti5O12-multiwalled carbon nanotube composite structures with performance as highrate anode-materials for li-ion battery applications and methods of synthesis thereof

US11056685B2 · kind B2 · utility

Assignee

• The Research Foundation for The State University of New York · US

Inventors

• Stanislaus S. Wong · Middle Island, US
• Lei Wang · Shanghai, CN
• Coray McBean · Malverne, US
• Amy C. Marschilok · Stony Brook, US
• Kenneth Takeuchi · South Setauket, US
• Esther S. Takeuchi · South Setauket, US

Key dates

• Filing date: Jan 17, 2019
• Grant date: Jul 6, 2021
• Expiry date: Jan 17, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A method of fabricating nanocomposite anode material embodying a lithium titanate (LTO)-multi-walled carbon nanotube (MWNT) composite intended for use in a lithium-ion battery includes providing multi-walled carbon nanotube (MWNTs), including nanotube surfaces, onto which functional oxygenated carboxylic acid moieties are arranged, generating 3D flower-like, lithium titanate (LTO) microspheres, including thin nanosheets and anchoring the acid-functionalized MWNTs onto surfaces of the 3D LTO microspheres by π-π interaction strategy to realize the nanocomposite anode material.