Electrochemical performance of LiNi0.5Mn1.5O4 prepared by improved solid state method as cathode in hybrid supercapacitor

Research progress in high voltage spinel LiNi0.5Mn1.5O4 material

“…12. This system exhibited excellent capacity retention even after 1000 cycles [110]. In this system, the faradaic lithium-ion intercalation reaction and non-faradaic lithium-ion adsorption/desorption reaction occurred in LiNi 0.5 Mn 1.5 O 4 and activated carbon, respectively.…”

“…Among the various battery cathode materials, spinel LiNi 0.5 Mn 1.5 O 4 material was a promising 5 V cathode material. The possibility of using this high voltage intercalation material as the positive electrode in combination with activated carbon negative electrode to fabricate an asymmetric supercapacitor was exploited by Rambabu and co-workers [110] and Li et al [111]. The charge and discharge curves of the LiNi 0.5 Mn 1.5 O 4 /AC hybrid supercapacitor at different current densities are presented in Fig.…”

Effect of the impurity LixNi1−xO on the electrochemical properties of 5V cathode material LiNi0.5Mn1.5O4

“…The high working voltage can lead to a high power density, so the batteries with this material as cathode will produce a high power output. So far, nearly all studies have focused on pure phase LiNi 0.5 Mn 1.5 O 4 and its derivatives, and great efforts have been made to avoid impurity phase such as Li x Ni 1−x O [1][2][3]. It is generally believed that the impurity Li x Ni 1−x O can deteriorate the electrochemical properties of products [4][5][6].The impurity Li x Ni 1−x O results from oxygen deficiency in high temperature process of synthesizing LiNi 0.5 Mn 1.5 O 4 [7].…”

Nanotechnology of Positive Electrodes for Li-Ion Batteries

“…As a result, metal acetates are trapped in a glassy state by an extended network of hydrogen bonds. At the same time, succinic acid complexes to the metal acetates and replaces the water of hydration in the complex to give acid-acetate species [17]. Succinic acid also acts as fuel and provides local heat for the formation of the compound during the decomposition process owing to its self-igniting property, thus accelerating the decomposition of acetate ions.…”