Advanced cathode materials for lithium-ion batteries

Abstract

Abstract

Thermodynamic Aspects of Cathode Coatings for Lithium‐Ion Batteries

“…There is no other binary oxide in Figure 5 that simultaneously provides higher The most remarkable feature of transition metal oxide coatings is that in every panel of Figure 5 , they occupy the region between Al 2 O 3 /MgO, and the cluster of p-block compounds close to the center of the plot. Several 3d-block compounds, and mostly the trivalent 3d-metal oxides, exhibit HF-scavenging tendencies and capacities much closer to Al 2 O 3 than the rest of the p-or d-block compounds as shown in Figure 5 [15][16][17]21,23,24,32 ] while we could fi nd only a single study [ 89 ] regarding Y 2 O 3 . HfO 2 is a reasonable candidate from the 5d-block but its drawback is only a relatively small Ω G .…”

“…Numerous subsequent studies [15][16][17][18][19][20][21][22][23][24] have shown that Al 2 O 3 -coated cathodes exhibit improved properties. Many other coating materials have also been investigated such as phosphates, [ 15,22,[25][26][27] carbonates, [ 28 ] hydroxides, [ 29 ] oxides (such as ZnO, [15][16][17]30,31 ] ZrO 2 , [15][16][17]21,23,24,32 ] TiO 2 , [ 21,23,32,33 ] MgO, [ 17,20,[34][35][36][37] SiO 2 , [ 23,24 ] Cr 2 O 3 , [ 38 ] Nb 2 O 5 , [ 16 ] Ta 2 O 5 , [ 16 ] SnO 2 [ 20 ] and B 2 O 3 [ 21,23 ] ) and fl uorides (such as AlF 3 , [ 13,15,…”

The Effect of 24c-site (A) Cation Substitution on the Tetragonal-Cubic Phase Transition in Li7-xLa3-xAxZr2O12 Garnet-Based Ceramic Electrolyte

“…Li-ion batteries have played a vital role in the development of current generation mobile devices, microelectronics and electric vehicles [1]. Due to the flammability of conventional electrolytes [2] [8,9], thus preventing use with metallic Li or other low potential anodes.…”

Lithium Air Battery: Alternate Energy Resource for the Future

“…There are three crucial factors such as pore size, pore volume and surface area which can affect the performance and discharge capacity of the lithium air cathode. Carbon loading is another factor where the increase of carbon loading decreases the capacity [39][40][41][42] . Highest gravimetric capacity of 5813 mAh/g is reported at a current density of 0.1 mA/cm 2 and a carbon loading of 1.9 mg.…”