Synthesis and electrochemical characteristics of Al2O3-coated LiNi1/3Co1/3Mn1/3O2 cathode materials for lithium ion batteries

Kim, Young‐Sik; Kim, Hyun Soo; Martin, Steve W.

doi:10.1016/j.electacta.2006.07.033

Cited by 156 publications

(83 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Many strategies target Al 2 O 3 , LiFePO 4 , and LiNiPO 4 coatings on layered and spinel cathode materials. [25][26][27][28][29][30][31][32] Other strategies target MgO and ZnO coatings on spinel cathode materials. 72,73 Some of these studies do discuss reactivity of the targeted coating phases with the cathode materials during heat-treatment.…”

Section: Resultsmentioning

confidence: 99%

“…[13][14][15][16][17][18][19] Surface coatings can perform a variety of functions for different cathode materials. [20][21][22][23][24][25][26][27][28][29][30][31][32] In this work, we evaluate the ability of coating materials to contain TMs in the cathode and thereby prevent TM dissolution into the electrolyte.To evaluate a coating material for TM containment, we use two criteria: 1) A coating material should exhibit low TM solubility. If a coating exhibits high TM solubility, then TMs can be present in the coating near the particle surface, where they are susceptible to dissolution into the electrolyte.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Lithium-Ion Cathode/Coating Pairs for Transition Metal Containment

Snydacker

Aykol

Kirklin

et al. 2016

J. Electrochem. Soc.

View full text Add to dashboard Cite

For many lithium-ion cathode materials, transition metal (TM) dissolution into the electrolyte contributes to cell degradation. Cathode coatings can limit TM dissolution by containing TMs in cathode materials. We perform density functional theory calculations to evaluate cathode/coating pairs for TM containment, specifically focusing on reactive stability of coating/cathode pairs as well as TM solubility in the coating materials. We consider stability and containment of materials at both synthesis and operating conditions. We find that many cathode/coating pairs are reactive when lithiated, while other cathode-coating pairs are stable when lithiated but become reactive following delithiation. Of all the coatings that we considered, Li 3 PO 4 occupies a unique chemical position, in that its coatings on oxide cathode materials maintained equilibrium under both lithiated and delithiated conditions. Furthermore, for oxide cathode materials, the Li 3 PO 4 coatings exhibit low TM solubilities across all cathode states of charge. Our results demonstrate that Li 3 PO 4 is a promising candidate for stable coatings on oxide cathode materials to limit TM dissolution into the electrolyte. Li-ion batteries are the dominant power sources in consumer electronics, and they are emerging as cost-competitive players in lowcarbon electricity systems and vehicles. However, many technologies are encumbered by the limited durability of today's Li-ion cells. For these applications, battery manufacturers have an incentive to improve cell durability. Transition metal (TM) dissolution from the cathode is a major contributor to cell degradation during cycling and aging.1 TM dissolution from the cathode contributes directly to capacity loss by decreasing the amount of cathode material. Furthermore, TMs that dissolve from the cathode material can migrate through the electrolyte to the anode, where they can cause changes to the anode Solid Electrolyte Interphase (SEI).2,3 These changes to the SEI increase impedance, decrease cell capacity, and decrease lifespan.A variety of strategies have been used to limit degradation by TMs. Electrolyte additives have been used to control SEI formation and limit the impact of TMs in the electrolyte. 4,5 Molecules have been attached to the polymer separator to sequester TMs from the electrolyte before they reach the anode. 6 In this work, we consider upstream strategies that limit TM dissolution from the cathode into the electrolyte. These upstream strategies are complementary to other strategies, including SEI formation and TM sequestration. There are several distinct categories of strategies for limiting TM dissolution from the cathode. Electrolytes can be tailored to reduce reactivity with the cathode. 7-9Cathode materials can be doped to control the oxidation states of transition metals. 10,11 This doping can be applied to the entire cathode particle or just near the surface.12 Cathode materials can also be covered with surface coatings to limit TM dissolution. [13][14][15][16][17][18][19] Surface coati...

show abstract

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Lithium-Ion Cathode/Coating Pairs for Transition Metal Containment

Snydacker

Aykol

Kirklin

et al. 2016

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…There are some studies about the coating effects on NCM. Some studies show that C, ZrO 2 , TiO 2 , Al 2 O 3 , Al(OH) 3 coating on NCM could improve the electrochemical properties [40,46]. Modification which can improve the electrochemical properties is attributed to existence of the coating layer.…”

Section: The Inhibition Effect On Transition Metal Dissolutionmentioning

confidence: 99%

Methods for promoting electrochemical properties of LiNil/3Col/3Mnl/3O2 for lithium-ion batteries

Che

Hu²,

et al. 2013

Chin. Sci. Bull.

View full text Add to dashboard Cite

“…In XRD patterns, the splitting of (006)/(102) peak and (018)/(110) peak are regarded as the indications of characteristic of layered structure materials 14 . From the observation of peak splitting of (006)/(012) and (018)/(110) near 38° and 65°, respectively, it can be seen that the layered structure is well developed 15 . The peak splitting in the XRD pattern of LiNi 1/3 Co 1/3 Mn 1/3 O 2 synthesized at 900 °C for 18h shows better property indicating that layered structure is better when the calcination temperature is optimal for the formation of pure phase 16,17 .…”

Section: Xrdmentioning

confidence: 99%

Structural, Morphological, Magnetic and Impedance Studies of Layered LiNi1/3Co1/3Mn1/3O2 Cathode Material for Lithium Ion Batteries

2017

Chem Sci Trans

View full text Add to dashboard Cite

LiNi 1/3 Co 1/3 Mn 1/3 O 2 was synthesized by solid state reaction method and the effect of calcination temperature on characteristics of LiNi 1/3 Co 1/3 Mn 1/3 O 2 cathode was investigated. Thermal analysis reveals the temperature dependence of the materials properties. The phase composition, micro-morphology, elemental analysis and Wyckoff sites of the products were characterized by xray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectra (EDS) and Fourier transform infrared (FTIR) respectively. The results of XRD pattern possessed the α-NaFeO 2 structure of the hexagonal system (space group m R 3 ). The morphological features of the powders were characterized by scanning electron microscopy (SEM). The EDS spectra confirm the presence of Ni, Co, Mn and O in the compound. The FT-IR spectroscopic data reveals that the structure of the oxide lattice constituted by LiO 6 , NiO 6, CoO 6 and MnO 6 octahedral. The variation of the ac conductivity, dielectric constant and electric modulus as function of frequency and temperature was determined to study the electrical properties of the synthesized sample. Electron spin resonance (ESR) was carried out to study the magnetic properties as well. From this study, we conclude that the layered LiNi 1/3 Co 1/3 Mn 1/3 O 2 material prepared by solid-state reaction method at 900 °C for 18h is promising next-generation cathode material for lithium ion batteries.

show abstract

Synthesis and electrochemical characteristics of Al2O3-coated LiNi1/3Co1/3Mn1/3O2 cathode materials for lithium ion batteries

Cited by 156 publications

References 34 publications

Lithium-Ion Cathode/Coating Pairs for Transition Metal Containment

Lithium-Ion Cathode/Coating Pairs for Transition Metal Containment

Methods for promoting electrochemical properties of LiNil/3Col/3Mnl/3O2 for lithium-ion batteries

Structural, Morphological, Magnetic and Impedance Studies of Layered LiNi1/3Co1/3Mn1/3O2 Cathode Material for Lithium Ion Batteries

Contact Info

Product

Resources

About