Preparation and characterization of CoO used as anodic material of lithium battery

Nanosheets-based ZnO–NiO microspheres for lithium-ion batteries

“…5c. The reasons are that the content of Zn in the hybrid is lower than Ni and the peaks for the alloying and dealloying of Zn have broad characteristics [23,26]. The present results, to a certain extent, sustain the electrochemical reactions for NiO and ZnO anodes as follows [27]:…”

Synthesis and electrochemical performance of carbon nanofiber–cobalt oxide composites

“…In general, ␣-Co(OH) 2 can spontaneously convert into more stable ␤-Co(OH) 2 in alkaline medium [14,17,18]. Co 3 O 4 begins to form from ␣-Co(OH) 2 above 165 • C [19], but CoO is prone to form from ␤-Co(OH) 2 at calcination temperature in N 2 [20].…”

“…The capacity increase from the 1st to ca. 30th cycle for CNF-Co 3 O 4 composites may be related to the gradual activation of Co 3 O 4 and the formation of the electroactive polymer/gel-like film [8,20]. The subsequent capacity decline upon continuous cycling may be due to the fine-structure change, such as agglomeration of the Co 3 O 4 nanoparticles, until a new structure balance is set up.…”

Synthesis of nanoparticles-assembled Co 3 O 4 microspheres as anodes for Li-ion batteries by spray pyrolysis of CoCl 2 solution

“…Therefore, more SEI would decompose when it was catalyzed by the smaller nanoparticles and the irreversible capacity could be obviously reduced. [47,48]. Moreover, the activation period is more evident in the case of sample with smaller primary particle size.…”