Page 149 - Handbook of Battery Materials

3.4 Reduced Manganese Oxides 117

References [98] [99] [100] [101] [102] [103] [104]

γ ( ◦ ) 90 120 90 90 90 90 120

β( ◦ ) 90 90 90 90 90 90 90

α( ◦ ) 90 90 90 90 90 90 90

oxide–hydroxides. Lattice constants c (pm) b (pin) 458.0 289.0 471 332 571.0 525.0 942.0 814.0 943.0 943.0 944 815 473.4 332.2

manganese (pm) a 1076.0 332 880.0 814.0 943.0 815 332.2

oxides and Space group Pnma P3ml B2 1 /d a I4 1 /amd Ia3 I4 1 /amd P P3ml

manganese

for reduced Symmetry Orthorhombic Trigonal Orthorhombic Tetragonal Cubic Tetragonal Trigonal

Crystallographic data Approximate formula α-MnOOH β-MnOOH γ -MnOOH Mn 3 O 4 α-Mn 2 O 3 γ -Mn 2 O 3 Mn(OH) 2 a Nonstandard setting of this space group.

Table 3.4 Compound or mineral Groutite Feitknechtite Manganite Hausmannite Pyrochroite