Highly dispersed Ag nanoparticles (<10nm) deposited on nanocrystalline Li4Ti5O12 demonstrating high-rate charge/discharge capability for lithium-ion battery

• Published in: Journal of power sources Vol. 205; pp. 479 - 482
• Main Authors: Liu, Zhimin, Zhang, Naiqing, Wang, Zhijun, Sun, Kening
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.05.2012; Elsevier
• Subjects: Anode; Applied sciences; Charge; Direct energy conversion and energy accumulation; Discharge; Electrical engineering. Electrical power engineering; Electrical power engineering; Electrochemical conversion: primary and secondary batteries, fuel cells; Electroless deposition; Exact sciences and technology; High-rate; Li4Ti5O12/Ag composite; Lithium-ion batteries; Lithium-ion battery; Materials; Nanocomposites; Nanocrystals; Nanomaterials; Nanostructure; Silver; High-rate; Lithium-ion battery; Anode; Li4Ti5O12/Ag composite; Electroless deposition; Nanoparticle; Alkaline storage battery; Secondary cell; Composite material; Electrochemical characteristic; O; Lithium battery; Ag composite; Lithium Titanates; Manufacturing process; Ti; Nanocomposite; Electroless plating; Nanostructured materials; Li; Nanocrystal
• ISSN: 0378-7753; 1873-2755
• DOI: 10.1016/j.jpowsour.2012.01.068

► LTO/Ag composite is prepared via a facile electroless deposition (ED) process. ► The nanosized Ag particles (∼8nm) are well dispersed in the nanocrystalline LTO (∼90nm). ► This novel kind of LTO/Ag composite presents high-rate capacity of 131mAhg−1 at 30C. A Li4Ti5O12 (LTO)/Ag composite is prepared via a facile electroless deposition (ED) process, and the electrochemical performance is examined for lithium-ion battery application. The nanosized Ag particles (<10nm) are well dispersed on the surface of the nanocrystalline LTO (∼90nm). The LTO/Ag nanocomposite displays an excellent high-rate capacity of 131mAhg−1 at 30C within the voltage range of 1–2.5V (versus Li+/Li). Furthermore, the nanocomposite also exhibits excellent cycle stability, retaining over 98% of its initial capacity after 120 charge/discharge cycles at varying rates.