This layer is formed on {HEAD ~ the particles} of positive electrode material by precipitation from {TAIL ~ a cobalt salt solution}, which can be a cobalt sulfate solution 
This layer is formed on { HEAD ~ the particles } of positive electrode material by precipitation from { TAIL ~ a cobalt salt solution } , which can be a cobalt sulfate solution
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH