Facile synthesis of N-doped carbon-coated Li4Ti5O12 anode for application in high-rate lithium ion batteries

Low-cost and environmentally friendly synthesis of an Al3+and Mn4+co-doped Li4Ti5O12composite with carbon quantum dots as an anode for lithium-ion batteries

“…To promote the process of commercial application, numerous research studies have been conducted to improve the performance of LTO, including nano-sized synthesis, [8][9][10] coating a second phase with high capacity or conductivity such as Ag, Cu, or carbon, [11][12][13][14][15][16] and doping with ions such as Na + , Mg 2+ , Fe 3+ , Ag + , Zn 2+ and F À in Li, Ti, or O sites. [16][17][18][19] To our knowledge, the ionic radii of Al 3+ and Mn 4+ are approximately equal to Ti 4+ .…”

Preparation of Carbon Nanotube Coated Li4Ti5O12 Nanosheets Heterostructure as Ultrastable Anodes for Lithium-Ion Batteries

“…To overcome these limitations, the two most common strategies are designing special morphology, which reduces the transport distance of lithium ions and electrons effectively, and improving the electronic conductivity by doping cations, − coating the particle surface, − and combining them with carbon materials (e.g., CNT, rGO). − Recently, two-dimensional (2D) nanosheets are considered to be of great potential due to the reduced ion/electron diffusion paths and high electrode–electrolyte contact area providing more lithium-insertion channels, which can partly settle the low ionic conductivity problem. ,, In addition, combining these with carbon materials is another effective strategy to improve the electronic conductivity of LTO-based electrodes. , It has been reported that the mesoporous LTO single crystals grown on rGO exhibited an excellent rate capability, which mainly resulted from the improvement in conductivity. ,,, Inspired by the above ideas, a heterostructure, constructed by grafting LTO nanosheets onto conductive supports such as CNTs, , would possess more lithium-insertion channels and good electronic conductivity simultaneously.…”

Dual-Modified Li4Ti5O12 Anode by Copper Decoration and Carbon Coating to Boost Lithium Storage

“…The TGA curve of LTO@C-Cu acquired under an air atmosphere is shown in Figure b. The minor weight loss below 250 °C is associated with the evaporated water absorbed on the surface, and the predominant loss between 300 and 500 °C, with carbon oxidation. − Therefore, the carbon content in LTO@C-Cu is about 3.7 wt %.…”