A Fast Approach to Obtain Layered Transition-Metal Cathode Material for Rechargeable Batteries

Abstract

Li-ion batteries as a support for future transportation have the advantages of high storage capacity, a long life cycle, and the fact that they are less dangerous than current battery materials. Li-ion battery components, especially the cathode, are the intercalation places for lithium, which plays an important role in battery performance. This study aims to obtain the LiNixMnyCozO2 (NMC) cathode material using a simple flash coprecipitation method. As precipitation agents and pH regulators, oxalic acid and ammonia are widely available and inexpensive. The composition of the NMC mole ratio was varied, with values of 333, 424, 442, 523, 532, 622, and 811. As a comprehensive study of NMC, lithium transition-metal oxide (LMO, LCO, and LNO) is also provided. The crystal structure, functional groups, morphology, elemental composition and material behavior of the particles were all investigated during the heating process. The galvanostatic charge–discharge analysis was tested with cylindrical cells and using mesocarbon microbeads/graphite as the anode. Cells were tested at 2.7–4.25 V at 0.5 C. Based on the analysis results, NMC with a mole ratio of 622 showed the best characteristicd and electrochemical performance. After 100 cycles, the discharged capacity reaches 153.60 mAh/g with 70.9% capacity retention.

Synthesis and Characterization of NMC 811 by Oxalate and Hydroxide Coprecipitation Method

“…It can be seen that the two products have the same constituent groups, which are O-H and C-O groups. These results are in agreement with the data reported by Nisa, et al23) and Ubaidullah, et al24) .…”

Scalable Advanced Li(Ni0.8Co0.1Mn0.1)O2 Cathode Materials from a Slug Flow Continuous Process

“…In this paper, we report the I (003) /I (104) ratio to be 1.7, indicating that the product prepared has a low degree of cation mixing than normally reported (usually between 1.4 and 1.6). 49,53 The impurity peaks around 23°correspond to the presence of Li 2 CO 3 /NiCO 3 as the surface impurity. 54 The tap density of the LNCMO811 is 1.34 g/cm 3 .…”

Effect of x on the Electrochemical Performance of Two-Layered Cathode Materials xLi2MnO3–(1−x)LiNi0.5Mn0.5O2

“…The use of these energy systems is closely related to the development of increasingly efficient storage systems; hence, much research is focused on improving their performance. The characteristics of lithium batteries, such as their high specific capacity, energy density, and the possibility of using non-toxic reagents in their manufacture [6][7][8][9], have enabled them to be used in various technological devices, especially in the automotive area, such as electric vehicles and hybrid electric vehicles [10,11], where energy density plays an important role. In this aspect, lithium batteries surpass other energy storage systems.…”

“…Several cathode materials have been used in lithium battery systems [10,12]. Recently, lithium-rich layered oxide (LLO) materials have been considered as promising cathode materials because of their high capacities (200-300 mAhg −1 ) with 3.6 V or larger operating voltages when they are charged to over 4.5 V at room temperature [13,14].…”