Spherical　CoCO3　powder　with　a　small　particle　size　and　high　density　was　successfully　prepared　using　a　continuous　carbonate　liquid　precipitation　method　with　a　raw　material　of　cobalt　chloride　solution,　a　precipitant　of　NH4HCO3,　and　without　a　template.　The　effects　of　the　concentration　of　ammonium　carbonate,　process　pH,　and　feeding　rate　on　the　tap　density　and　apparent　density　of　cobalt　carbonate　were　investigated.　It　was　found　that　the　apparent　and　tap　density　values　of　4.4　mu　m　of　cobalt　carbonate　were　1.27　g/cm(3)　and　1.86　g/cm(3),　respectively,　when　the　initial　concentration　of　NH4HCO3　solution　was　60　g/L,　the　pH　was　7.15-7.20,　and　the　feeding　rate　of　cobalt　chloride　was　2　L/h.　The　anisotropic　growth　process　of　the　crystal　lattice　plane　of　CoCO3　under　the　aforementioned　optimal　conditions　were　studied.　The　results　demonstrated　that　the　crystal　grew　fastest　along　the　(110)　facet　orientation,　which　was　the　dominant　growth　surface,　determining　the　final　morphology　of　the　primary　particles.　The　scanning　electron　microscopy　(SEM)　and　high-resolution　transmission　electron　microscopy　(HR-TEM)　results　demonstrated　that　the　primary　particle　morphology　of　the　cobalt　carbonate　was　a　nanosheet.　The　unit　cell　of　cobalt　carbonate,　of　a　hexagonal　structure　in　the　horizontal　direction,　grew　horizontally　along　the　(110)　facet　orientation,　while　20-35　unit　cells　of　the　carbon　carbonate　were　stacked　along　the　c-axis　in　the　thickness　direction.　Finally,　the　sheet-shaped　particles　were　agglomerated　into　dense　spherical　secondary　particles,　as　presented　through　the　crystal　re-crystallization　model.