Du Hoang Long Jeong, Min-Gi Lee, Yoon-Sung Choi, Wonchang Lee, Joong Kee Oh, In-Hwan Jung, Hun-Gi 2024-01-20T07:02:35Z 2024-01-20T07:02:35Z 2021-09-05 2015-05-20 1944-8244 https://pubs.kist.re.kr/handle/201004/125431 Nitrogen-doped carbon is coated on lithium titanate (Li4Ti5O12, LTO) via a simple chemical refluxing process, using ethylenediamine (EDA) as the carbon and nitrogen source. The process incorporates a carbon coating doped with a relatively high amount of nitrogen to form a conducting network on the LTO matrix. The introduction of N dopants in the carbon matrix leads to a higher density of C vacancies, resulting in improved lithium-ion diffusion. The uniform coating of nitrogen-doped carbon on Li4Ti5O12 (CN-LTO) enhances the electronic conductivity of a CN-LTO electrode and the corresponding electrochemical properties of the cell employing the electrode. The results of our study demonstrate that the CN-LTO anode exhibits higher rate capability and cycling performance over 100 cycles. From the electrochemical tests performed, the specific capacity of CN-LTO electrode at higher rates of 20 and 50 C are found to be 140.7 and 82.3 mAh g(-1)., respectively. In addition, the CN-Li4Ti5O12 anode attained higher capacity retention of 100% at 1 C rate after 100 cycles and 92.9% at 10 C rate after 300 cycles. English American Chemical Society ELECTROCHEMICAL PERFORMANCE TITANIUM NITRIDE COATED LI4TI5O12 FACILE SYNTHESIS ANODE MATERIAL SPINEL CHEMISTRY ELECTRODE SURFACE Coating Lithium Titanate with Nitrogen-Doped Carbon by Simple Refluxing for High-Power Lithium-Ion Batteries Article 10.1021/acsami.5b00776 1 ACS Applied Materials & Interfaces, v.7, no.19, pp.10250 - 10257 ACS Applied Materials & Interfaces 7 19 10250 10257 scie scopus 000355055000021 2-s2.0-84930197857 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article ELECTROCHEMICAL PERFORMANCE TITANIUM NITRIDE COATED LI4TI5O12 FACILE SYNTHESIS ANODE MATERIAL SPINEL CHEMISTRY ELECTRODE SURFACE lithium titanate nitrogen-doped carbon coating anode lithium ion battery high power density