La₂O₃-coated Li₂ZnTi₃O₈@C as a high performance anode for lithium-ion batteries

Abstract

LZTO@C@La2O3 coated with composite protective layers with excellent electrochemical performance has been synthesized using a simple solid-state method.

Synthesis of Nb-Doped Li2ZnTi3O8 Anode with Long Cycle Life and Applications in the LiMn2O4/Li2ZnTi3O8 Full Cell

“…However, it can be seen that Nb-doping greatly improves the cycling performance of LZTO at high temperature, indicating that its structure is tremendously stabilized via Nb-doping. Its cycling performance at a high temperature of 55 °C surpasses many previous reports. , In addition, Nb-doping obviously enhances the rate capability of LZTO at a low temperature of 0 °C (Figure b). Especially for LZTN1O, at the current density of 0.8 A g –1 , 178.8 mA h g –1 is still kept at the 60th cycle.…”

“…Its cycling performance at a high temperature of 55 °C surpasses many previous reports. 45,59 In addition, Nb-doping obviously enhances the rate capability of LZTO at a low temperature of 0 °C (Figure 6b). Especially for LZTN1O, at the current density of 0.8 A g −1 , 178.8 mA h g −1 is still kept at the 60th cycle.…”

Synergic Effect of Niobium Doping and Carbon Coating on the Performance of a Li2ZnTi3O8 Anode Candidate for Lithium Ion Batteries

“…No diffraction peaks are observed from carbon in the XRD pattern due to its amorphous nature, but it also caused an increase in cell parameter. , The unit cell parameter a (Å) of LZTO-1 and LZTO-2 is 8.37105 and 8.3117, respectively. Carbon coating can also be beneficial in the sense that it may prevent the direct interaction of the electrolyte with the electrode, thus preventing the side reactions which are responsible for the weakening of the interface …”

“…Carbon coating can also be beneficial in the sense that it may prevent the direct interaction of the electrolyte with the electrode, thus preventing the side reactions which are responsible for the weakening of the interface. 20 Raman spectroscopy was utilized to confirm the carbon deposition in the Li 2 ZnTi 3−x Nb x O 8 /C (x = 0.05) material. Two prominent bands approximately at 1340 and 1589 cm −1 might be credited to the D band and G band, respectively, Figure 3.…”

Enhancement of the electrochemical performance of lithium-ion batteries by SiO2@poly(2-acrylamido-2-methylpropanesulfonic acid) nanosphere addition into a polypropylene membrane

“…[1][2][3][4][5][6][7][8][9] Therefore, the innovation of preparation technology related to the membrane of LIBs is also in urgent need of a breakthrough. [10][11][12][12][13][14][15][16] Changqing Zhu et al acquired an aramid nanober/polyphenylene sulde (ANFs/PPS) nonwoven composite separator via a paper-making method. 17 It was found that the introduction of polar ANFs is helpful for lithium-ion transfer between the electrodes, and the cycling retention rate of the battery with the composite separator consequently reached 92% at 0.5C, much higher than that of the cell with a PP membrane (73%).…”