Ali, Ghulam Patil, Supriya A. Mehboob, Sheeraz Ahmad, Mashkoor Ha, Heung Yong Kim, Hak-Sung Chung, Kyung Yoon 2024-01-19T20:04:36Z 2024-01-19T20:04:36Z 2021-09-02 2019-04-15 0378-7753 https://pubs.kist.re.kr/handle/201004/120095 High-performance electrode materials for lithium-ion batteries (LIBs) are urgently required to meet the requirement of the widespread use of energy storage devices from small-to large-scale applications. In this regard, ultra-small nanocrystalline SnO2 particles with a size of similar to 3 nm are synthesized using a simple hydrothermal method and investigated as a high capacity anode material for LIBs. The SnO2 anode shows a high reversible capacity of 1026 mAh g(-1) at a current density of 150 mA g(-1). The kinetic study of the anode material is conducted and compared using cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic intermittent titration techniques and the lithium diffusion coefficient at open circuit potential is calculated to be 3.71978 x 10(-13), 1.818 x 10(-14), and similar to 1.82 x 10(-16) cm(2) s(-1), respectively. The reaction mechanism of highly reversible SnO2 nanoparticles is investigated using ex-situ XRD, XPS, in-situ X-ray absorption near edge spectroscopy, and TEM and the results reveal the formation of lithium-tin alloy in the lithiated electrode and reversible formation of SnO2 upon delithiation. English ELSEVIER SCIENCE BV ANODE MATERIAL NANOCOMPOSITE ANODES GRAPHENE OXIDE ION BATTERIES PERFORMANCE COMPOSITE CAPACITY ELECTRODES Determination of lithium diffusion coefficient and reaction mechanism into ultra-small nanocrystalline SnO2 particles Article 10.1016/j.jpowsour.2019.02.052 1 JOURNAL OF POWER SOURCES, v.419, pp.229 - 236 JOURNAL OF POWER SOURCES 419 229 236 scie scopus 000463305900028 2-s2.0-85062710915 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article ANODE MATERIAL NANOCOMPOSITE ANODES GRAPHENE OXIDE ION BATTERIES PERFORMANCE COMPOSITE CAPACITY ELECTRODES Nanocrystalline SnO2 High capacity Impedance spectroscopy Diffusion coefficient