Synthesis of Modified Graphite with High Crystalline Na-LTO by Simple Doping Method. Issue 1 (March 2021)

• Record Type: Journal Article
• Authors: Putra, M I; Muzayanha, S U; Rizal, Y; Fadilah, ; Widiyandari, H; Purwanto, A
• Is Part Of: IOP conference series. Volume 1096:Issue 1(2021)
• Publication Date: 2021-03
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/1096/1/012143
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Graphite doped with Na-Li4 Ti5 O12 (Na-LTO) for lithium-ion batteries with stable rateability were prepared in a short time by simple grounding which followed with the short calcination time. High crystalline Na-LTO improved the diffusivity of the Li-ion kinetics and stability. Therefore, Graphite/Na-LTO (G-NaLTO) was compared with the pure graphite to find out the differences in terms of XRD pattern and electrochemical performance. XRD analysis showed there was no significant differences pattern from G-NaLTO with commercial graphite. In terms of electrochemical performance, G-NaLTO which was doped by 1 wt% Na-LTO, presented a high initial charge capacity 356.69 mAh g −1 at 0.1C and stable discharge rate-capability at 0.2C and 1C were 264.64 mAh g −1 and 220.65 mAh g −1, respectively, after 15 cycles. G-NaLTO with a composition of 3 wt% Na-LTO shows a decreasing electrochemical performance so it can be concluded that the addition of 1 wt% LTO by the doping method is the most optimal.