Increased cycling stability of AlPO4-coated LiMn2O4 for lithium ion batteries

Improved elevated temperature performance of commercial LiMn2O4 coated with LiNi0.5Mn1.5O4

“…[5,[9][10][11][12][13], and surface modification by using stable compounds, such as SiO 2 , ZrO 2 , Al 2 O 3 , AlPO 4 , etc. [14][15][16][17][18] on LiMn 2 O 4 were used to improve the cyclic performance.…”

Improvement of the electrochemical performance of LiMn2O4 cathode active material by lithium borosilicate (LBS) surface coating for lithium-ion batteries

“…Recently, surface modifications with oxides such as Li 2 O-B 2 O 3 [21,22], Al 2 O 3 [23], Al 2 O 3 /CuO x [24], ZnO [25,26], TiO 2 [27,28], AlPO 4 [29,30], CeO 2 [31], LiAlO 2 [32], SiO 2 [33], ZrO 2 [34] and Co 3 O 4 [35] have been studied and have shown excellent cyclability. These studies considered that the presence of oxide coating can minimize the contact area of the LiMn 2 O 4 /electrolyte interface and suppress the dissolution of manganese.…”

A review of recent developments in the surface modification of LiMn2O4 as cathode material of power lithium-ion battery

“…Hence, it can be expected that AlPO 4 -coated LMO has an improved electrochemical performance. AlPO 4 -coated LMO was synthesized as follows [28]: LMO powders (prepared by solid-state method) were slowly dispersed into the AlPO 4 solution under constant stirring for 5 h, and then the mixed slurry was dried in an oven for 2 h at 100°C and subsequently annealed at 700°C under air for 3 h in a furnace. The uncoated LiMO showed 17.9% and 32.9% capacity loss in 50 cycles at 30°C and 55°C, respectively; the AlPO 4 -coated LMO only exhibited the capacity loss of 2.6% and 7.6% at 30°C and 55°C, respectively.…”

“…The uncoated LiMO showed 17.9% and 32.9% capacity loss in 50 cycles at 30°C and 55°C, respectively; the AlPO 4 -coated LMO only exhibited the capacity loss of 2.6% and 7.6% at 30°C and 55°C, respectively. The improvement of cycleability is ascribed to the AlPO 4 film, minimizing the contact area of LiMn 2 O 4 /electrolyte interface, thus, suppressing the dissolution of Mn effectively [28].…”