Effects of the Mn/Li molar ratio on the fabrication process of lithium manganese oxide cathode electrode for lithium-ion batteries
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https://doi.org/10.54939/1859-1043.j.mst.90.2023.71-78Keywords:
Lithium manganese oxide; Cathode material; Lithium ion batteries; MnO2.Abstract
Lithium-ion batteries utilizing lithium manganese oxide (LiMn2O4 - LMO) as the cathode electrode exhibit high voltage and capacity, making them an ideal power source with extensive potential applications. The Mn/Li molar ratio during the fabrication process has a significant influence on the characteristics of LMO. Herein, a sustainable source of Mn was used to fabricate LMO electrode materials. The impact of the Mn/Li molar ratios on the structure and electrochemical properties of LMO was thoroughly investigated. The results revealed that when the Mn/Li molar ratio was 2.0:1.2, a well-defined LiMn2O4 crystal structure with high purity was obtained. The electrode exhibited fast lithium ion intercalation/deintercalation kinetics, reaching a specific capacity of 110 mAh/g at 0.1 C and maintaining 50 mAh/g after 1000 cycles at a high discharge rate of 2 C. This study demonstrates the influence of the Mn/Li ratios in LMO fabrication and provides guidance for the development of various other cathode electrode materials for lithium-ion batteries.
References
[1]. Xiang Jingwei et al. "Building practical high‐voltage cathode materials for lithium‐ion batteries." Advanced Materials, vol.34, no.52, p. 2200912, (2022).
[2]. Hou Xudong et al. "Specific countermeasures to intrinsic capacity decline issues and future direction of LiMn2O4 cathode." Energy Storage Materials, vol. 57, PP. 577-606, (2023).
[3]. Radzi, Z. Iskandar, et al. "Review of spinel LiMn2O4 cathode materials under high cut-off voltage in lithium-ion batteries: Challenges and strategies." Journal of Electroanalytical Chemistry, vol. 920, p. 116623, (2022).
[4]. Nguyễn Văn Hoàng, Trần Văn Mẫn, Nguyễn Minh Thảo. "Khảo sát tính chất điện hóa của vật liệu spinel Li4Mn5O12 tổng hợp bằng phương pháp thủy nhiệt ứng dụng làm vật liệu điện cực." Bản B của Tạp chí Khoa học và Công nghệ Việt Nam, vol. 16, no. 5, pp. 6-11, (2017).
[5]. Van Tran Giang et al. "Investigation of Ni doped LiMn2O4 used as cathode materials for high voltage Lithium batteries." VNUHCM Journal of Science and Technology Development, vol. 16, no.3, pp. 48-59, (2013).
[6]. Phùng Trọng Triệu. “Cải thiện đặc trưng điến hóa của vật liệu điện cực dương LiMn2O4 cho pin ion liti”. Luận văn thạc sĩ. Trường Đại học sư phạm Hà Nội 2, (2015).
[7]. Nguyễn Thị Hương. “Khảo sát ảnh hưởng của nhiệt độ ủ lên đặc trưng tiêm thoát ion của vật liệu điện cực catốt LiMn2O4”. Luận văn thạc sĩ. Trường Đại học sư phạm Hà Nội 2, (2016).
[8]. Liu, Tongchao et al. "Correlation between manganese dissolution and dynamic phase stability in spinel-based lithium-ion battery." Nature Communications, vol. 10, no.1, p. 4721, (2019).
[9]. Akhoon, Shabir Ahmad et al. "Enhanced structural and electrochemical properties of LiMn2O4 nanocubes." Journal of Electronic Materials, vol. 46, pp. 992-998, (2017).
[10]. Le Trung Hieu et al. "Enhanced electrochemical performance of porous carbon derived from cornstalks for supercapacitor applications." Journal of Electronic Materials, vol. 50, pp. 6854-6861, (2021).
[11]. Xu Wangqiong, et al. "Understanding the effect of Al doping on the electrochemical performance improvement of the LiMn2O4 cathode material." ACS Applied Materials & Interfaces, vol. 13, no.38, pp. 45446-45454, (2021).
[12]. Ross, Natasha et al. "Amplification of the discharge current density of lithium-ion batteries with spinel phase Li (PtAu)0.02Mn1.98O4 nano-materials." Electrochimica Acta, vol. 128, pp. 178-183, (2014).
[13]. Ma, Shuhua, Hideyuki Noguchi, and Masaki Yoshio. "Cyclic voltammetric study on stoichiometric spinel LiMn2O4 electrode at elevated temperature." Journal of power sources, vol. 97, pp. 385-388, (2001).
[14]. Bakierska, Monika et al. "Enhancement of electrochemical performance of LiMn2O4 spinel cathode material by synergetic substitution with Ni and S." Materials, vol. 9, no.5, p. 366, (2016).
[15]. Jiang, Rongyan et al. "Study on the enhanced electrochemical performance of LiMn2O4 cathode material at 55 C by the nano Ag-coating." Journal of Electroanalytical Chemistry, vol. 744, pp. 69-76, (2015).
[16]. Liu, Guangfu et al. "Enhanced Electrochemical Properties of LiMn2O4 Cathode Materials by Coating with ZnO." International Journal of Electrochemical Science, vol. 17, no.6, p. 220657, (2022).
[17]. Abou-Rjeily, John et al. "High-rate cyclability and stability of LiMn2O4 cathode materials for lithium-ion batteries from low-cost natural β− MnO2." Energy Storage Materials, vol. 26, pp. 423-432, (2020).
[18]. Ji, Ying et al. "Improved capacity retention and ultralong cycle performance of Ni-Fe co-doped LiMn2O4 cathode material at high current densities." Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 648, p. 129259, (2022).
[19]. Tang, Daichun et al. "Surface structure evolution of LiMn2O4 cathode material upon charge/discharge." Chemistry of Materials, vol. 26, no.11, pp. 3535-3543, (2014).
[20]. Xu, Jing et al. "Self-templated hollow LiMn2O4 nanofibers as extremely long lifespan lithium ion battery cathode." Journal of Materials Science: Materials in Electronics, vol. 31, pp. 12249-12256, (2020).
[21]. Xu, Jing et al. "Yttrium-doped LiMn2O4 spheres with long cycle life as Lithium-Ion Battery Cathode." Journal of Materials Science: Materials in Electronics, vol. 30, pp. 19450-19456, (2019).
[22]. Lu, Jia et al. "Synergistic effect for LiMn2O4 microcubes with enhanced rate capability and excellent cycle stability for lithium ion batteries." Journal of The Electrochemical Society, vol. 163, no. 2, p. A197, (2015).
