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Báo cáo hóa học: " LiNi0.4Co0.3Mn0.3O2 thin film electrode by aerosol deposition"

Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : LiNi0.4Co0.3Mn0.3O2 thin film electrode by aerosol deposition | Kim et al. Nanoscale Research Letters 2012 7 64 http www.nanoscalereslett.eom content 7 1 64 o Nanoscale Research Letters a SpringerOpen Journal NANO EXPRESS Open Access LiNi0.4Co0.3Mn0.3O2 thin film electrode by aerosol deposition 111 2 3 3 5 Icpyo Kim Tae-Hyun Nam Ki-Won Kim Jou-Hyeon Ahn Dong-Soo Park Cheolwoo Ahn Byong Sun Chun Guoxiu Wang1 4 and Hyo-Jun Ahn 1 Abstract LiNi0.4Co0.3Mn0.3O2 thin film electrodes are fabricated from LiNi0.4Co0.3Mn0.3O2 raw powder at room temperature without pretreatments using aerosol deposition that is much faster and easier than conventional methods such as vaporization pulsed laser deposition and sputtering. The LiNi0.4Co0.3Mn0.3O2 thin film is composed of fine grains maintaining the crystal structure of the LiNi0.4Co0.3Mn0.3O2 raw powder. In the cyclic voltammogram the LiNi0.4Co0.3Mn0.3O2 thin film electrode shows a 3.9-V anodic peak and a 3.6-V cathodic peak. The initial discharge capacity is 44.6 gAh cm2 and reversible behavior is observed in charge-discharge profiles. Based on the results the aerosol deposition method is believed to be a potential candidate for the fabrication of thin film electrodes. Keywords thin film aerosol deposition battery Introduction Batteries can be applied to microelectronic and portable devices as power sources 1-3 . Also many endeavors have been made to develop batteries for high power and energy for electric vehicles 4 5 . Although lithium-ion batteries among all other batteries are the most promising type owing to their large energy storage density commercial lithium-ion batteries contain a flammable liquid electrolyte which has induced safety concerns. In order to mitigate the safety issue an all-solid-state battery is a viable candidate as it is composed of thin film electrodes and a solid electrolyte. Moreover the thin film electrode usually is composed of an active material without a binder. Owing to these advantages many studies have been conducted to fabricate all-solid-state batteries .