Synthesis and performance of Al3+-doped cathode materials 0.6Li[Li1/3Mn2/3]O2 · 0.4Li[Ni1/3Mn1/3Co(1/3-y)Aly]O2 by high temperature solid-state method
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Aili Zhang
Abstract
0.6Li[Li1/3Mn2/3]O2 · 0.4Li[Ni1/3Mn1/3Co(1/3-y)Aly]O2 (y = 0, 0.03, 0.08, 0.13) was prepared by a high-temperature solid-state method as cathode material for lithium-ion batteries. X-ray diffraction and scanning electron microscopy were used to assess the structure and morphology of the samples. Electrochemical performance testing, AC impedance testing, and cyclic voltammetry testing were performed to study various aspects of the cathode materials. The results showed that the addition of Al3+ had little effect on the charge–discharge performance, but the cycling performance and stability of the material were significantly enhanced. When the doping fraction of Al3+ was 0.08, the cathode material 0.6Li[Li1/3Mn2/3]O2 · 0.4Li[Ni1/3Mn1/3Co(19/75) Al0.08]O2 had good electrochemical performance. The first discharge specific capacity reached 161.1 mAh · g−1 in the charge and discharge test at 0.1 C rate. After 20 cycles, the discharge capacity was still 159.7 mAh · g−1. The charge–discharge specific capacity had almost no attenuation.
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© 2019, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Static recrystallization characteristics and kinetics of high-silicon steels for direct quenching and partitioning
- Kinetics of intermetallic compound layers during initial period of reaction between mild steel and molten aluminum
- Effects of Cr and Zn on the interfacial microstructures of borides in Fe–Cr–B cast steels during hot-dipping in Al–Zn alloys
- Hot deformation behaviour of and processing map for an Ni-based austenitic stainless steel
- Design, microstructural characterization and heat treatment of novel Cu0.5FeNiVAlx high-entropy alloys
- Effects of temperature field and SiC nanoparticles on microstructure and mechanical properties of n-SiCp/Mg-9 %Al composites fabricated by ultrasonication-assisted semi-solid hot pressing of powder
- Investigation of the microstructure and mechanical properties of NbB2 particle reinforced aluminum matrix composites
- Effect of Al2O3/SiO2 ratio on viscosity and structure of CaO–Al2O3–SiO2–CaF2–MgO slag
- Microstructure and oxidation of Ni–Fe2O3 composite coating on AISI 304 stainless steel
- Synthesis and performance of Al3+-doped cathode materials 0.6Li[Li1/3Mn2/3]O2 · 0.4Li[Ni1/3Mn1/3Co(1/3-y)Aly]O2 by high temperature solid-state method
- Growth and photo-electrochemical properties of rutile TiO2 nanowire arrays prepared by the hydrothermal method
- Deposition of fine copper film on samples placed internally and externally to the cathodic cage
- DGM News
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Static recrystallization characteristics and kinetics of high-silicon steels for direct quenching and partitioning
- Kinetics of intermetallic compound layers during initial period of reaction between mild steel and molten aluminum
- Effects of Cr and Zn on the interfacial microstructures of borides in Fe–Cr–B cast steels during hot-dipping in Al–Zn alloys
- Hot deformation behaviour of and processing map for an Ni-based austenitic stainless steel
- Design, microstructural characterization and heat treatment of novel Cu0.5FeNiVAlx high-entropy alloys
- Effects of temperature field and SiC nanoparticles on microstructure and mechanical properties of n-SiCp/Mg-9 %Al composites fabricated by ultrasonication-assisted semi-solid hot pressing of powder
- Investigation of the microstructure and mechanical properties of NbB2 particle reinforced aluminum matrix composites
- Effect of Al2O3/SiO2 ratio on viscosity and structure of CaO–Al2O3–SiO2–CaF2–MgO slag
- Microstructure and oxidation of Ni–Fe2O3 composite coating on AISI 304 stainless steel
- Synthesis and performance of Al3+-doped cathode materials 0.6Li[Li1/3Mn2/3]O2 · 0.4Li[Ni1/3Mn1/3Co(1/3-y)Aly]O2 by high temperature solid-state method
- Growth and photo-electrochemical properties of rutile TiO2 nanowire arrays prepared by the hydrothermal method
- Deposition of fine copper film on samples placed internally and externally to the cathodic cage
- DGM News
- DGM News
