All-solid-state rechargeable batteries with three-dimensionally ordered macroporous ceramic electrolyte

M. Kotobuki; R. Osone; H. Munakata; K. Kanamura

doi:10.1117/12.882884

17 May 2011 All-solid-state rechargeable batteries with three-dimensionally ordered macroporous ceramic electrolyte

M. Kotobuki, R. Osone, H. Munakata, K. Kanamura

Proceedings Volume 8035, Energy Harvesting and Storage: Materials, Devices, and Applications II; 80350C (2011) https://doi.org/10.1117/12.882884
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

Fabrication of all-solid-state Li battery has been strongly required to overcome safety issue of present Li battery. One of promising structures for ceramics electrolyte in all-solid-state battery is 2-layered structure composed of 3 dimensionally ordered macroporous layer (3DOM) and dense layer. In this study, we prepared Li_0.35La_0.55TiO₃ (LLT) ceramics electrolyte with the 2-layered structure by suspension filtration method. Thicknesses of the dense and the porous layers were about 23 and 105 μm, respectively. The porous layer involved uniform pores of 1.8 μm in diameter. An electrochemical property of LiMn₂O₄ / 2-layered LLT composite, prepared by impregnation of precursor sol for LiMn₂O₄ into the pores followed by calcination, was tested. A rechargeable behavior of the composite electrode was clearly observed. From this result, it can be said that the composite can work as rechargeable battery. The discharge capacity of the composite was 27 mA h g^-1.

Citation Download Citation

M. Kotobuki, R. Osone, H. Munakata, and K. Kanamura "All-solid-state rechargeable batteries with three-dimensionally ordered macroporous ceramic electrolyte", Proc. SPIE 8035, Energy Harvesting and Storage: Materials, Devices, and Applications II, 80350C (17 May 2011); https://doi.org/10.1117/12.882884

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