KJ Ceramics 31

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Detailed Program

Paper Number : EL-I05

Time Frame : 11:10~11:35

Presentation Date : Friday, 28, November

Session Name : Electronic Ceramics

Session Chair 1# : Jong-Sook Lee

Session Chair 2# : Nobuyasu Adachi

Thin film Electrodes for All-solid-state Microbatteries

Ji-Won Choi

Korea Institute of Science and Technology

The requirement of advanced thin film lithium batteries have been steady increased as increasing the development of wearable, flexible and soft electronic devices such as smart cards, bio-sensors, various bio-applications, and roll-up displays. Therefore, we have been studying on various types of advanced thin film batteries such as transparent, high-capacity, and flexible batteries. Especially, the cathode electrode thin film play an important role in thin film battery systems in respect that it limits capacity and power density. Thus, we have researched new types of cathode materials, various types of 3D structured cathode thin films, and low temperature annealed cathode thin film which can be applied on flexible substrate.
In this presentation, part 1 focuses on introducing new synthesized cathode thin films and 3D structured cathode thin films such as hemisphere and nano-rod. Part 2 will be presented with subject that fabrication method of flexible all-solid-state thin film lithium battery using low temperature annealed LiNi0.5Mn1.5O4 cathode, LiPON electrolyte, and Li-metal anode thin film on polyimide (PI) substrate. In both parts, the structural properties of the thin films were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The electrochemical properties were measured using impedance analyzer and WBC3000 battery cycler. The results of this study show the applicability of all-solid-state microbatteries as the promising next-generation miniaturized power source in micro-devices.

Acknowledgements :

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