3D Ion-Conducting, Scalable, and Mechanically Reinforced Ceramic Film for High Voltage Solid-State Batteries
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- 3D Ion-Conducting, Scalable, and Mechanically Reinforced Ceramic Film for High Voltage Solid-State Batteries
- Kim, Hyun Woo; Han, Jinhyup; Lim, Young Jun; Choi, YunSeok; Lee, Eungje; Kim, Youngsik
- Issue Date
- WILEY-V C H VERLAG GMBH
- ADVANCED FUNCTIONAL MATERIALS, v.31, no.2, pp.2002008
- Concerning the safety aspects of Li(+)ion batteries, an epoxy-reinforced thin ceramic film (ERTCF) is prepared by firing and sintering a slurry-casted composite powder film. The ERTCF is composed of Li(+)ion conduction channels and is made of high amounts of sintered ceramic Li1+xTi2-xAlx(PO4)(3)(LATP) and epoxy polymer with enhanced mechanical properties for solid-state batteries. The 2D and 3D characterizations are conducted not only for showing continuous Li(+)ion channels thorough LATP ceramic channels with over 10(-4)S cm(-1)of ionic conductivity but also to investigate small amounts of epoxy polymer with enhanced mechanical properties. Solid-state Li(+)ion cells are fabricated using the ERTCF and they show initial charge-discharge capacities of 139/133 mAh g(-1). Furthermore, the scope of the ERTCF is expanded to high-voltage (>8 V) solid-state Li(+)ion batteries through a bipolar stacked cell design. Hence, it is expected that the present investigation will significantly contribute in the preparation of the next generation reinforced thin ceramic film electrolytes for high-voltage solid-state batteries.
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