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Lithium titanate (Li Ti5 ()I2) is a promising anode material due to its unique features of uzero strain" and high charge and discharge platform. However? its intrinsic low electron and ion conductivity bring severe polarization to Lid Tir)()I2 upon charge/discharge. With the objective of solving the as-mentioned issues? in this paper? a facile synthesis route of metal-organic framework derived porous Lii Ti()12 was presented via solvothermal and calcination. When tested as an anode material for lithium-ion battery? it delivered high stability (120.3 mAh/g at ().5 A/g after 700 cycles) as well as rate performance (67.4 mAh/g at 2 八/g)，and the polarization decreased with the cycles going on. The excellent electrochemical performance could be ascribed to more active sites and shortened ion diffusion path provided by the porous structure derived from metal-organic framework. The structural changed during cycles offered better electron and ion transfer kinetics? therefore? leading to low polarization. More importantly，this preparation method may also be applied for other Ti-based anode materials (such as TiNb NavTiO； etc.). [ABSTRACT FROM AUTHOR]

Rapid detection of dissolved gas in transformer insulation oil can promptly analyze the types and harmfulness of transformer faults. However, the separation efficiency of traditional oil-gas separation membranes is low, which cannot meet the latest standard and manual inspection requirements. In order to improve separation efficiency,the hollow fiber composite membranes of α-Al2O3/γ-Al2O3/Teflon AF2400 were prepared, and the effects of γ-Al2O3 and annealing temperature on the interfacial properties of the composite membranes were studied. It was found that the addition of γ-Al2O3 could effectively improve the interfacial properties of organic/ceramic composite membrane. The interfacial strength of the composite film could be further improved by annealing at 330 ℃. The hollow fiber membrane had lower gas transmission resistance, which led to one hour balance time for all 7 kinds of insulation oil dissolved gases and laid the foundation for rapid detection of dissolved gases in transformer insulating oil. [ABSTRACT FROM AUTHOR]