A hydrothermal synthesis of Ru-doped LiMn_1.5Ni_0.5O₄ cathode materials for enhanced electrochemical performance

Abstract

An Ru-doped spinel-structured LiNi0.5Mn1.5O4 (LNMO) cathode has been prepared via a simple hydrothermal synthesis method.

New Rare Earth-Doped Bilayered Perovskite Oxide Photocatalysts Sr2La0.5R0.5FeMnO7 (R = La, Nd, Sm, Gd, Dy) for the Degradation of Highly Toxic Methylene Blue Dye in Wastewater under Visible Light: Structural, Optical, and Magnetic Properties

“…Figure b displays the Mn 2p spectra, and one can observe the appearance of two peaks located at 642.18 and 653.53 eV, which corresponds to Mn 3/2 and Mn 1/2 , respectively; the asymmetry of the two peaks indicates the existence of the mixed valent Mn ions . The peak fitting of the signal at 642 eV showed that Mn 3/2 could be resolved into two peaks at 641 and 643 eV, which can be attributed to Mn 3+ and Mn 4+ , respectively. , …”

“…43 The peak fitting of the signal at 642 eV showed that Mn 3/2 could be resolved into two peaks at 641 and 643 eV, which can be attributed to Mn 3+ and Mn 4+ , respectively. 44,45 3.4. Oxygen Stoichiometry and Elemental and Microstructural Analyses.…”

Research Progress of LiTi2(PO4)3 Anode for Aqueous Lithium-ion Batteries

“…水/溶剂热法利用体系在高温下的自生压力实 现晶粒生长, 其优势在于所制备的晶粒发育相对完 整、粒径尺寸较小且分布均匀 [39][40][41][42] 。Yue 等 [43] 利用 水热法合成了 LiTi 2 (PO 4 ) 3 , 他们将 Li 2 O、TiO 2 和 P 2 O 5 置于反应釜中, 250 ℃保温 5~7 d 制备了立方形 态的目标产物, 其粒径在 40~60 μm。Liang 等 [44] 图 3 LiTi 2 (PO 4 ) 3 纳米线(LTPNMs)的制备过程示意图 [38] Fig. 3 Schematical illustration of the fabrication process of lithium titanium phosphate nanowires (LTPNMs) [38] 以 LiOH、 H 3 PO 4 和钛粉为原料, 钽片为基板, 在 220 ℃ 恒温 24 h 获得了薄膜电极材料。但 Yue 等和 Liang 等均未对产物进行深入的电化学性能研究。Li 等 [45] 采用水热法, 以…”

Sol‐gel route synthesis of high energy density Li [Li0.2Ni0.3Mn0.7] O2 cathode with controlled structure, morphology and enhanced electrochemical performance

“…In addition, the inclusion of suitable metal dopants were able to eliminate the impurity phases. Facile hydrothermal method suggested by Zhang et al achieved a highest initial discharge capacity (352.8 mAhg −1 ) with layered material and faded drastically after 50 cycles with a capacity retention of 75.5% 8‐11 …”