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the XRD pattern of spinel Li4Ti5O12 prepared by sintering at 800 ℃ for 16 h in air. The diffraction peaks of the sample can be indexed as spinel lithium titanium oxide (cubic phase, space group Fd-3m... synthetically attracts great attention in the world. Spinel Li4Ti5O12 is viewed as one promising alternative to graphite to be an anode material in lithium ion batteries[5], because of having......
is smaller than the standard value of 8.248 ?. This result demonstrates that the manganese ions in the octahedral sites are partially replaced by lithium ions in the spinel lattice [3]. Figure 5..., BRUCE P G. Synthesis of ordered mesoporous Li-Mn-O spinel as a positive electrode for rechargeable lithium batteries [J]. Angewandte Chemie International Edition, 2008, 47: 9711-9716. [12] DING Y L......
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of lithium nickel manganese oxide cathode materials coating with lithium ion conductor[J]. The Chinese Journal of Nonferrous Metals, 2015, 25(7): 1911-1919. [16] 曹璇, 郭华军, 彭文杰, 等. 锂离子电池正极材料Li2FeSiO4的改性[J... diffusion method for all solid state lithium battery DU Ying, LI Jie, LIU Jin (School of Metallurgy and Environment, Central South University, Changsha 410083, China) Abstract: A composite cathode......
-resistant electrolyte is much beneficial to enhancement of electrochemical property of LiNi0.5Mn1.5O4, such as coulombic efficiency and cycling performance. Key words: LiNi0.5Mn1.5O4; cathode; lithium ion... Recently, several research groups have reported transition-metal-substituted spinel materials (LiMxMn2-xO4, M: Cr, Co, Fe, Ni, Cu) with high-voltage plateaus above 4.5V[1-5]. Among these materials......
to recovery valuable metals. Sea manganese modules that contain mainly manganese dioxide and hydrated iron oxide are found beneath the sea floor in parts of all the deep oceans of the world except the Arctic... and nickel sulphate as well as cobalt oxide. The final maximum recovery rates for manganese, cobalt and nickel are 85%, 75% and 78%, respectively. Acknowledgements The authors would like......
Preparation and Application of Manganese Dioxide/Graphene Composite in Lithium Sulfur Batteries郭维敏,ZHU Qinglin,LI Xiaoman,卢清华School of Minerals Processing and Bioengineering, Central South University摘 要:Graphene/manganese dioxide composites and grapheme/manganese dioxide/sulfur(G/MnO2/S) composite cathode were prepared by hydrothermal method......
working voltage of 3 V without the emergence of spinel phase after 50 cycles. This shows that anhydrous sodium manganese oxide is a stable cathode material for the application of secondary lithium batteries... into the spinel LiMn2O4 [J]. J Electrochem Soc, 1994, 141(6): 1421-1431. [2] GUMMOW R J, DEKOCK A, THACKERAY M M. Improved capacity retention in rechargeable 4 V lithium/lithium-manganese oxide (spinel......
: Synthesis of the spinel structure lithium manganese oxide (LiMn2O4) by supercritical hydrothermal (SH) accelerated solid state reaction (SSR) route was studied. The impacts of the reaction pressure... water; solid state reaction; high rate capability 1 Introduction Spinel structure LiMn2O4 has received considerable attention in recent years as a cathode material for lithium ion batteries, for its......
