개선된 고상 합성법을 통한 LiNi 0.5 Mn 1.5 O 4 양극재 연구
Modified Solid-State Synthesis for LiNi 0.5 Mn 1.5 O 4 Cathode Materials
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초록
이 논문에서는 다양한 원료 NiO, Ni 2 O 3 , MnO 2 , Mn 3 O 4 를 사용하여 LiNi 0.5 Mn 1.5 O 4 를 비드밀 혼합 공정을 사용하여균일한 혼합을 통해 불순물을 줄이고 스프레이 드라이 공정을 사용 균일한 2차 입자 모양과 분포를 얻은 개선된 고상 합성법으로 합성했다. 율속 특성에 최적화된 원료를 선택하고 개선된 공정을 적용하여 얻어진 LiNi 0.5 Mn 1.5 O 4 는 XRD 및 SEM을 통해 1차 입자와 2차 입자가 성공적으로 합성되는 것을 확인하였다. 이 결과는 개선된 고상 합성법 으로 합성된 LiNi 0.5 Mn 1.5 O 4 는 생산 비용을 낮춰 상업적 가치를 향상시키며, 리튬이온이차전지에 적용되어 높은 에너지 밀도와 고전압을 얻는 연구 목표가 달성되었으며, LiNi 0.5 Mn 1.5 O 4 가 효율적인 에너지 저장 솔루션으로 활용 될 수있음을 제시하였다.
Abstract
In this study, LiNi 0.5 Mn 1.5 O 4 was synthesized from various raw materials, including NiO, Ni 2 O 3 , MnO 2 , and Mn 3 O 4 . An improved solid-phase synthesis method was then used to reduce impurities through uniform mixing via bead milling and to achieve a consistent secondary particle shape and distribution through spray drying. The LiNi 0.5 Mn 1.5 O 4 was obtained by selecting materials optimized for rate capability and by applying an improved synthesis process. X-ray diffraction and scanning electron microscopy analyses confirmed that LiNi 0.5 Mn 1.5 O 4 successfully synthesized primary and secondary particles. This result showed that LiNi 0.5 Mn 1.5 O 4 , when subjected to an improved solid-phase synthesis, reduces production costs ,enhances its commercial value, and can be applied to lithium-ion secondary batteries to achieve high energy density and high voltage. In short, LiNi 0.5 Mn 1.5 O 4 can be used as an efficient energy storage material.
참고문헌 (14)
- Yingchun Lyu, "An Overview on the Advances of LiCoO2 Cathodes for Lithium-Ion Batteries", Adv. Energy Mater, 11(2) (2021)
- Fang Xian, "Investigation on the Cathodic Interfacial Stability of Nitrile Electrolyte and its performance with High Voltage LiCoO2", Chem. Commun, 56, pp.4998~5001 (2020)
- Xueping Liu, "LiMn2O4 Cathode Materials with Excellent Performances by Synergistic Enhancement of Double-Cation(Na+, Mg2+)Doping and 3DG Coating for Power Lithium-Ion Batteries", J. Phys. Chem. C, 124(48), pp.26106~26116 (2020)
- Jae-won Lee, "Research Trend of Electrode Materials for Lithium Rechargeable Batteries", J. Korean Powder Metall. Inst, 21(6), pp.473~479 (2014)
- Xiaoling Cui, "The influence of the voltage plateau on the coulombic efficiency and capacity degradation in LiNi0. 5Mn1. 5O4materials", Journal of Alloys and Compounds, 820 (2020)
- Heon-Pyo Hong, "Electrochemical and structural properties of 5V spinel cathode material LiNi0. 5Mn1. 5O4", Journal of Industrial Science and Technology Institut, 36(1), pp.21~29 (2022)
- O2 material with a high capacity by acetate precursor for Li-ion batteries, "Solid State Ionics", 2013, 134~138
- Zhaoyong Chena, "Performance and Structure of LiNi0. 5Mn1. 5O4 Prepared from Various Ni Precursors for Lithium Ion Batteries", S. Afr. J. Chem, 61, pp.157~161 (2008)
- Seohyeon Park, "Analysis for Atomic Structural Deterioration and Electrochemical Properties of Li-rich Cathode Materials for Lithium Ion Batteries", Appl. Chem. Eng, 31(1), pp.97~102 (2019)
- O2 Lithium-ion Cathode Materials, "Journal of the Korean Electrochemical Society", 2013, 59~64
- Li Wang, "Synthesis of LiNi0. 5Mn1. 5O4 cathode material with improved electrochemical performances through a modified solidstate method", Powder Technology, 292, pp.203~209 (2016)
- Dong-Fan Liu, "A new high-efficiency process for Li+recovery from solutions based on LiMn2O4", λ-MnO2 materials, 2019, pp.377, ~
- D. Liu, "Spinel materials for high-voltage cathodes in Li-ion batteries", RSC Adv, 4, pp.154~167 (2014)
- Zhaoyong Chen, "Performance of LiNi0. 5Mn1. 5O4 prepared by solid-state reaction", Journal of Power Sources, 189(1), pp.507~510 (2009)