| 摘要 |
A method of preparing insoluble transition metal compound particles is described, comprising: providing a transition metal salt having the formula (TM)(S) wherein the transition metal component TM is one or more of Mn, Ni, Co, Mg, Zn, Ca, Sr, Cu, Zr, P, Fe, Al, Ga, In, Cr, Ge or Sn; providing a source of a carbonate-, hydroxide-, phosphate-, oxyhydroxide- or oxide-based anionic compound wherein the anionic component, represented by S', is reactive with the transition metal component to form the particles; adding the transition metal salt and the anionic compound to a reaction chamber; and subjecting the chamber to sonication to form particles. In an exemplary embodiment, the transition metal salt solution comprises MnSO4, the source of the anionic compound comprises Na2CO3 and/or NH4HCO3, the ratio of MnSO4 to Na2CO3 and/or NH4HCO3 is from about 1:1.5 to 1.5:1. Particles formed comprise MnCO3 may have a narrow size distribution and a tap density of from about 1.7 g/mL to about 2.3 g/mL.
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