| Abstrakt: |
Battery becomes the main challenge for hastening the Electric Vehicles (EV) market penetration. Currently, lithium-ion battery (LIB) technology is broadly used for EV industry due to its high energy density. However, scientific discovery is still needed to compete on energy density, power capability, driving range, and also charging time aspect. Since its utilized for mobility, the LIB technology preference belongs to high-rich nickel cathode active materials. Besides, in terms of LIB supply chain, Indonesia is benefited with 23% of global nickel reserves. According to market projection trends, LiNi0.8Mn0.1Co0.1O2 (NMC 811) grasps the huge attention on the LIB technology for EV industry. Nevertheless, there are some technical challenges that need to be solved for mass production. For instance, Li/Ni cation mixing that affect significant volume of Li ions intercalation/deintercalation process on microscopic level, which leads to poor electrochemical performance. One of the promising solutions is by adding amount of additional lithium element. This work investigated the effect of lithium content excess on the synthesis of NMC 811 cathode active material. The synthesis route was co-precipitation with amount of lithium excess on 1%, 3%, 5%, and 7%. For attaining crystal structure data, it followed by X-Ray Diffraction (XRD) analysis. The result depicted that lithium excess on NMC 811 cathode active material influenced cation mixing. More excess lithium affected cation mixing reduction of cathode product. [ABSTRACT FROM AUTHOR] |
