Synthesis of new cathodic active substance (NMC) on lithium ion battery performance

In this paper, cathodic active material (NMC) with non-stoichiometric composition Li۱.۲ (Ni ۰.۱۳Mn۰.۵۴Co۰.۱۳) ۰۲ is synthesized by co-precipitation method to increase capacity and prevent capacity loss in long cycles and long life.For this purpose, the cathodic precursor was synthesized as hydroxide by Ni۰.۳Mn۰.۵Co composition using co-precipitation process and then lithium was added with different amounts of lithium hydroxide (LiOH) to affect the amount of excess lithium in Lix(Ni۰.۱۳Mn۰.۵۴Co۰.۱۳) ۰۲ Investigate the electrochemical properties of the cathode. The phases formed in the synthetic active substance were identified by XRD. Examination of the surface of the cathodic material, surface morphology, was performed by scanning microscopy electron imaging (SEM). Obtain the capacity of the cathodic active substance synthesized by the Autolab potentiostat device. The results of battery charge-discharge tests for the synthesized sample indicate that the sample Li۱.۲(Ni۰.۱۳Mn۰.۵۴Co۰.۱۳)۰۲ is well synthesized and has a capacity of ۱۶۰ mAh / g.

Keywords:

Lithium ion battery , cathodic active substance , NMC , co-precipitation , non-stoichiometric composition