Electrical, mechanical and chemical behavior of Li_1.2Zr_1.9Sr_0.1(PO₄)₃

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• 作者：Sheila Smith^a ; Travis Thompson^a ; Jeff Sakamoto^a ; Jan L. Allen^b ; David R. Baker^b ; Jeff Wolfenstine^b ; ^{jeffrey.b.wolfenstine.civ@mail.mil}
• 刊名：Solid State Ionics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：300
• 期：Complete
• 页码：38-45
• 全文大小：1125 K
• 卷排序：300

文摘

The elastic modulus, fracture toughness, ionic conductivity, Li and water stability of dense (~ 97%) fine-grain (~ 10 μm) Li1.2Zr1.9Sr0.1(PO4)3 (LZSP) consolidated by reactive hot-pressing was investigated. Low values of elastic modulus (25.2 and 40.9 GPa), fracture toughness (0.29 and 0.37 MPa-m1/2), total conductivity (2.1 × 10-5 S/cm) were exhibited as result of the presence of microcracks formed during cooling from the hot-pressing temperature. The lattice conductivity of LZSP is 0.85 × 10-4 S/cm with an activation energy for bulk conductivity of 0.29 eV. The results of Li/LZSP/Li cell impedance as a function of time and surface examination suggest that LZSP is not stable against metallic lithium.