Crystal structures and electronic properties for the over-lithiated and Li–Ag substituted phases of Li9V3(P2O7)3(PO4)2 insertion electrode system
作者:Masashige Onoda、Makoto Inagaki、Hiroaki Saito
DOI:10.1016/j.jssc.2014.07.040
日期:2014.11
For the Li9V3(P2O7)3(PO4)2 insertion electrode system with a multiple-electron reaction, the over-lithiated phase LixV3(P2O7)3(PO4)2 with 9
对于具有多电子反应的Li 9 V 3(P 2 O 7)3(PO 4)2插入电极系统,过锂化相Li x V 3(P 2 O 7)3(PO 4)2具有9
Synthesis, crystal structure and lithium ion conduction of Li<sub>3</sub>BP<sub>2</sub>O<sub>8</sub>
作者:Toru Hasegawa、Hisanori Yamane
DOI:10.1039/c3dt52917g
日期:——
group P (no. 2)). In the crystalstructure of Li3BP2O8, BO4 and PO4 tetrahedra share O atoms and form one-dimensional 1∞[BP2O8]3− chains along the c-axis direction. A polycrystalline Li3BP2O8 bulk sample was synthesized by the solid state reaction of Li4P2O7 and LiPO3 prepared from the starting materials in advance with H3BO3 at 923 K. The lithium ion conductivities measured for the polycrystalline sample
李的单晶3 BP 2 ö 8通过加热起始材料的混合物制备的锂:11::B:22 P摩尔比在13 933 K的空气,并通过在-10ķh的速率冷却- 1。用三斜晶胞参数对单晶的X射线衍射(XRD)反射进行索引:a = 5.1888(5)Å,b = 7.4118(7)Å,c = 7.6735(7)Å,α = 101.18(1) °,β = 105.07(1)°,γ = 90.34(1)°(空间群P(编号2))。在Li 3 BP 2 O 8,BO 4的晶体结构中和PO 4四面体共享O原子和形式的一维1 ∞ [BP 2 ö 8 ] 3-沿着链Ç轴方向。通过预先由原料制备的Li 4 P 2 O 7和LiPO 3与H 3 BO 3在923 K下进行固相反应,合成了多晶Li 3 BP 2 O 8块状样品。交流阻抗和直流方法测得的多晶样品为1.5×10 -5 S cm-1在583 K和6.0×10 -8小号厘米-1在423
Effects of LiPON Incorporation on the Structures and Properties of Mixed Oxy-Sulfide-Nitride Glassy Solid Electrolytes
作者:Victor Torres、Steve W. Martin
DOI:10.1021/acs.inorgchem.3c00756
日期:2023.5.29
determine the Tg and Tc values of these glasses. Fourier transformation-infrared, Raman, and magic angle spinning nuclear magnetic resonance spectroscopies were used to examine the short-range order structures of these materials. X-ray photoelectron spectroscopy was conducted on the glasses to further understand the bonding environments of the doped nitrogen. Finally, N and S elemental analyses were used to
玻璃态固体电解质 (GSE) 是全固态电池开发中很有前途的固体电解质。混合氧硫化物氮化物 (MOSN) GSE 结合了硫化物玻璃的高离子电导率、氧化物玻璃的优异化学稳定性以及氮化物玻璃的电化学稳定性。然而,关于这些新型含氮电解质的合成和表征的报道非常有限。因此,在玻璃合成过程中系统地加入 LiPON 用于探索氮和氧添加对MOSN GSE 的玻璃化转变 ( Tg )和结晶温度 ( Tc )原子级结构的影响。MOSN GSE系列 58.3Li 2 S + 31.7SiS 2+ 10[(1 – x )Li 0.67 PO 2.83 + x LiPO 2.53 N 0.314 ], x = 0.0, 0.06, 0.12, 0.2, 0.27, 0.36,通过熔融淬火合成制备。使用差示扫描量热法测定Tg和Tc这些眼镜的价值。傅里叶变换红外、拉曼和魔角旋转核磁共振波谱法用于检查这些材料的短程有序结构。对玻璃进行了
Phase relation of Li2O–CoO–P2O5 ternary system and electrochemical behaviors of Co-base polyphosphates within this system
The subsolidus phase relations in the Li2O-CoO-P2O5 system have been systematically investigated by means of X-ray diffraction (XRD) pattern. The results have confirmed 6 binary compounds, 5 ternary compounds and 17 three-phase regions. In this system, the solid-state synthesized process (under Ar/H-2 atmosphere) of LiCoPO4 using the Li2CO3, Co3O4 and NH4H2PO4 as raw materials has been investigated. The result indicates that the single-phase LiCoPO4 compound can be formed stably within the temperature range between 350 degrees C and 700 degrees C, while several intermediate or decomposition compounds have been detected outside this sintering temperature range. The electrochemical properties of these purephase LiCoPO4 powders obtained at different temperature are compared by galvanostatic charge/discharge mode and at the meantime, we also demonstrated for the first time that Li6Co5(P2O7)(4) electrode is electrochemically active. (C) 2015 Elsevier B.V. All rights reserved.
Bagieu-Beucher, M.; Masse, R., Zeitschrift fur Kristallographie