Table 5 Performances of LMOs coated with various materials

From: Lithium resources and novel strategies for their extraction and purification

Coating material

LMO precursors

Brine

pH

Li uptake (mg·g−1)

Mn loss (%)

Desorption acid

Recyclability

Reference

SiO2

LiMn2O4

Salt lake brine, 384 (mg·L−1)

9

18.5

6.3

0.1 M HCl

7 cycles, 82.7%

133

ZrO2

Li1.6Mn1.6O4

Salt lake brine, 65-70 (mg·L−1)

-

25.96

0.349

0.1 M HCl

15 cycles, 92.2%

131

Al-oxide

Li1.33Mn1.67O4

Natural brine, 1470 (mg·L−1)

6.5

42.5

0.8

0.25M H2SO4

4 cycles, ~85%

132

Ni-oxide

Li1.33Mn1.67O4

Natural brine, 1470 (mg·L−1)

6.5

45

0.9

0.25M H2SO4

4 cycles, ~80%

132