Electrochemical properties of LiNi1−yCoyO2 cathode materials synthesized from different starting materials by the solid-state reaction method

Role of Mg dopant on the electrochemical performance of LiNi0.5Co0.5O2 cathode materials for lithium rechargeable batteries

“…This enlargement of the crystal lattice provides more space for lithium ion intercalation and deintercalation which enhances the cycling stability. The obtained discharge capacities and capacity retentions are superior to LiNi 0.5 Co 0.5 O 2 cathode materials [46][47][48][49] and Al doped LiNi 0.5 Co 0.5 O 2 [50] materials. Figure 7 presents the differential capacity curves of LiCoO 2 , LiNi 0.5 Co 0.5 O 2 , and LiMg 0.2 Ni 0.3 Co 0.5 O 2 cathode materials which are derived from charge/discharge measurements.…”

Influence of Li source on tap density and high rate cycling performance of spherical Li[Ni1/3Co1/3Mn1/3]O2 for advanced lithium-ion batteries

“…However, to replace the commercial LiCoO 2 as a cathode material for advanced lithium ion batteries, which required high energy density and high power density, the tap density and high rate cycling performance of the Li[Ni 1/3 Co 1/3 Mn 1/3 ]O 2 must be further improved [9][10][11][12]. Recently, Li sources have proved to be an important factor in influencing the grain size and rate capability of LiNi 1−y Co y O 2 [13], LiFePO 4 [14] and spinel LiNi 0.5 Mn 1.5 O 4 [15]. Nevertheless, to the best of our knowledge, the influences of Li source on the characteristics of Li[Ni 1/3 Co 1/3 Mn 1/3 ]O 2 have barely been reported.…”

SYNTHESIS, DIELECTRIC AND IMPEDANCE STUDIES OF LiNi1-X-0.02Mg0.02ZnXO2 (X = 0.0 and 0.02) CATHODE MATERIALS FOR LITHIUM-ION BATTERIES.

“…However, in order to minimize these problems, research efforts are focused on the substitution of LiCoO 2 with LiNiO 2 and LiMnO 2 . The LiNiO 2 is an isostructural compound with lithium cobalt oxide, but has not been pursued in the pure state for battery cathode even though nickel is more readily available than cobalt [3]. The advantages of LiNiO 2 over LiCoO 2 include better cycling performance, rate capability and thermal stability.…”