| abstract |
The invention relates to positive electrode material used for Li-ion batteries, a precursor and process used for preparing such materials, and Li-ion battery using such material in its positive electrode. The invention describes a higher density LiCoO2 positive electrode material for lithium secondary batteries, with a specific surface area (BET) below 0.2 m2/g, and a volumetric median particle size (d50) of more than 15 μm. This product has improved specific capacity and rate capability. Other embodiments of the invention are an aggregated Co (OH)2, which is used as a precursor, the electrode mix and the battery manufactured using abovementioned LiCoO2. |