Lee, Jae Joon Kim, Soo Ho Jee, Seung Hyun Yoon, Young Soo Cho, Won Il Yoon, Seok Jin Choi, Ji Won Nam, Sang-Cheol 2024-01-20T23:33:30Z 2024-01-20T23:33:30Z 2021-09-03 2008-03-15 0378-7753 https://pubs.kist.re.kr/handle/201004/133647 Sputtering growth of a Sn/Li2O multilayer composite thin film is conducted to produce an anode thin film with less capacity fading than that of a pure SnO2 film for a thin-film battery. The structural properties of the Sn/Li2O multilayer are examined. In addition, the electrochemical characteristics of the Sn/Li2O and pure SnO2 thin films are compared. X-ray diffraction and transmission electron microscopy measurements reveal a Sn crystalline peak only and a Sn-Li2O multilayer structure, respectively, in the Sn/Li2O thin film. A SnO2 thin film with a polycrystalline phase shows an irreversible side-reaction at 0.8 V versus Li/Li+, an initial charge retention of about 29%, and poor cycleability in the cut-off voltage range from 1.2 to 0 V versus Li/Li+. By contrast, no irreversible side-reaction is found in the Sn/Li2O multilayer composite thin film while there is an initial charge retention of 49% and better cycleability (more than twice) than that of pure SnO2 film after about 150 cycles. These results indicate that the Sn/Li2O multilayer composite thin film can be used for tin-based, thin-film, microbatteries and provide motivation to pursue fabrication of Sn-Li2O anode powder for bulk type batteries. (C) 2008 Elsevier B.V. All rights reserved. English ELSEVIER LITHIUM PERFORMANCE SNO2 Characteristics of Sn/Li2O multilayer composite anode for thin film microbattery Article 10.1016/j.jpowsour.2007.11.116 1 JOURNAL OF POWER SOURCES, v.178, no.1, pp.434 - 438 JOURNAL OF POWER SOURCES 178 1 434 438 scie scopus 000254215000052 2-s2.0-39149141004 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article LITHIUM PERFORMANCE SNO2 Sn/Li2O multilayer tin oxide thin-film anode tin-based battery cycleability charge retention