Effect of Al-doping on lithium nickel oxides

Amriou, T.; Sayede, Adlane; Khelifa, B.; Mathieu, C.; Aourag, H.

doi:10.1016/j.jpowsour.2003.11.063

Cited by 28 publications

(18 citation statements)

References 34 publications

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“…4 Some groups investigated the effect of other metal ion substitution on LiNi 1-x M x O 2 (M=Mn, Co, Mg, Fe, Al or combination of two metal ions) in order to improve the electrochemical properties. [6][7][8][9] Among metal ions doping, Co substitution showed a promising candidate for lithium ion batteries. This is due to the significant improvement in the thermal stability of delithiated phase of LiNiO 2 , thereby reducing the safety problems associated with it.…”

Section: Introductionmentioning

confidence: 99%

Effect of Calcination Temperature of Size Controlled Microstructure of LiNi_0.8Co_0.15Al_0.05O₂Cathode for Rechargeable Lithium Battery

Park¹,

Lim²,

Son³

2014

Bulletin of the Korean Chemical Society

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C without capacity loss at various high C rates. This is ascribed to the minimized cation disorder, a higher conductivity, and higher lithium ion diffusion coefficient (D Li ) observed in this material. In the differential scanning calorimetry DSC profile of the charged sample, the generation of heat by exothermic reaction was decreased by calcined at high temperature, and this decrease is especially at 850 o C. This behavior implies that the high temperature calcinations of LiNi 0.8 Co 0.15 Al 0.05 O 2 prevent phase transitions with the release of oxygen.

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Section: Introductionmentioning

confidence: 99%

Effect of Calcination Temperature of Size Controlled Microstructure of LiNi_0.8Co_0.15Al_0.05O₂Cathode for Rechargeable Lithium Battery

Park¹,

Lim²,

Son³

2014

Bulletin of the Korean Chemical Society

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“…To improve the electrochemical properties of LiNiO 2 , Co [20][21][22][23][24], Al [25][26][27][28], Ti [29][30][31][32], Ga [33], Mn [34] and Fe [35][36][37][38][39] ions were substituted for nickel ions by synthesis in oxygen. Reimers et al [35] studied solid solution series of LiFe y Ni 1-y O 2 (0.1 B y B 0.5).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical properties of Li1−z (Ni1−y Fe y )1+z O2 synthesized by the combustion method in an air atmosphere

Song

Kwon

Song³

et al. 2008

J Appl Electrochem

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For the syntheses of LiNi 1-y Fe y O 2 (0.000 B y B 0.300), mixtures of the starting materials with the desired compositions were preheated in an air atmosphere at 400°C for 30 min and calcined in air at 700°C for 48 h. The phases appearing in the intermediate reaction steps for the formation of lithium nickel oxide are deduced from the DTA analysis. XRD analysis, FE-SEM observation, FTIR analysis and electrochemical measurement were performed for the synthesized Li 1-z (Ni 1-y Fe y ) 1?z O 2 (0.000 B y B 0.300) samples. The samples of Li 1-z (Ni 1-y Fe y ) 1?z O 2 with y = 0.025 and 0.050 have higher first discharge capacities than Li 1-z (Ni 1-y Fe y ) 1?z O 2 with y = 0.000 and better or similar cycling performance at the 0.1 C rate in the voltage range of 2.7-4.2 V. Similar results have not previously been reported except for Co-substituted LiNiO 2 . The sample Li 1-z (Ni 0.975 Fe 0.025 ) 1?z O 2 has the highest first discharge capacity (176.5 mAh g -1 ). Rietveld refinement of the XRD patterns of LiNi 1-y Fe y O 2 (0.000 \ y B 0.100) from a starting structure model [Li,Ni] 3b [Li,Ni,Fe] 3a [O 2 ] 6c showed that cation disordering occurred in the samples.

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“…27 Various studies reported beneficial effects of Al doping on LiCoO 2 and LiNiO 2 and NCMs. [28][29][30][31][32][33] ), and found that Al doping reduces the reversible capacity, but significantly improves the thermal stability of the electrode in the de-intercalated state. 36 Al doping in Li-rich-Mn-rich NCMs has also improved the thermal stabilities of these materials.…”

mentioning

confidence: 99%

Unraveling the Effects of Al Doping on the Electrochemical Properties of LiNi_0.5Co_0.2Mn_0.3O₂Using First Principles

Dixit

Markovsky

Aurbach

et al. 2017

J. Electrochem. Soc.

130

108

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One of the prevailing approaches to tune properties of materials is lattice doping with metal cations. Aluminum is a common choice, and numerous studies have demonstrated the ability of Al 3+ doping to stabilize different positive electrode materials, such as Li [Ni-Co-Mn] In recent decades, rechargeable batteries have demonstrated tremendous promise as alternate energy storage devices. In particular, Li-ion batteries (LIB) have revolutionized electronic devices, ranging from portable electronics to electric vehicles (EVs), due to their excellent power and energy density.1 The bottleneck of LIB in terms of capacity and performance is often considered to be the nature of the positive electrodes (cathodes).1-6 Among the cathode materials for LIB, layered transition metal (TM) oxides (LiTMO 2, TM = Ni, Co, Mn) are very promising candidates, and in particular LiCoO 2 . However, in spite of the commercialization and wide use of LiCoO 2 in portable LIB, it suffers from several drawbacks. Key disadvantages include high cost and safety concerns associated with cobalt.2-6 Other limitations of LiCoO 2 include low practical capacity (140 mAhg −1 ) and oxygen loss on charge. 7-10 Consequently, in a quest to move beyond LiCoO 2 , a new class of mixed transition metal oxides were designed, wherein Ni and Mn were introduced into the material (i.e. Li[Ni x Co y Mn z ]O 2 or simply NCM).11,12 The Ni-rich variants of these materials have emerged as the most promising low-cost and high capacity alternatives to the already mature LiCoO 2 . 10,13,14,11 These Nirich materials show improved performance; however, the capacities and stabilities are still too low for practical commercialization for EVs. 12Key hurdles in the commercialization of these materials for EV applications are associated with oxygen release at high voltages and cation migration, which leads to structural transformations. 15,16 Recently, it has been demonstrated that oxygen loss and cation migration are concurrent events. 16,17 To address these challenges, lattice doping of cations 18 has been adopted to improve the performance of these materials, and various cations were explored.18-24 A particularly promising dopant for these materials is Al, although its effect is still not fully understood. Early theoretical studies proposed that Al substitution in LiCoO 2 25 and NCMs 26 could increase the intercalation potential, and these predictions were verified experimentally. 27 Various studies reported beneficial effects of Al doping on LiCoO 2 and LiNiO 2 and NCMs. ), and found that Al doping reduces the reversible capacity, but significantly improves the thermal stability of the electrode in the de-intercalated state.36 Al doping in Li-rich-Mn-rich NCMs has also improved the thermal stabilities of these materials. 37 In a detailed theoretical study, Dianat et al. studied the effect of Al doping on Li-Mn-Ni-O based cathode materials.38 They reported that Al doping stabilizes the partially intercalated states, but increases the Li-diffusion barriers. Park et al. studie...

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Effect of Al-doping on lithium nickel oxides

Cited by 28 publications

References 34 publications

Effect of Calcination Temperature of Size Controlled Microstructure of LiNi_0.8Co_0.15Al_0.05O₂Cathode for Rechargeable Lithium Battery

Effect of Calcination Temperature of Size Controlled Microstructure of LiNi_0.8Co_0.15Al_0.05O₂Cathode for Rechargeable Lithium Battery

Electrochemical properties of Li1−z (Ni1−y Fe y )1+z O2 synthesized by the combustion method in an air atmosphere

Unraveling the Effects of Al Doping on the Electrochemical Properties of LiNi_0.5Co_0.2Mn_0.3O₂Using First Principles

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Effect of Al-doping on lithium nickel oxides

Cited by 28 publications

References 34 publications

Effect of Calcination Temperature of Size Controlled Microstructure of LiNi0.8Co0.15Al0.05O2Cathode for Rechargeable Lithium Battery

Effect of Calcination Temperature of Size Controlled Microstructure of LiNi0.8Co0.15Al0.05O2Cathode for Rechargeable Lithium Battery

Electrochemical properties of Li1−z (Ni1−y Fe y )1+z O2 synthesized by the combustion method in an air atmosphere

Unraveling the Effects of Al Doping on the Electrochemical Properties of LiNi0.5Co0.2Mn0.3O2Using First Principles

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Effect of Calcination Temperature of Size Controlled Microstructure of LiNi_0.8Co_0.15Al_0.05O₂Cathode for Rechargeable Lithium Battery

Effect of Calcination Temperature of Size Controlled Microstructure of LiNi_0.8Co_0.15Al_0.05O₂Cathode for Rechargeable Lithium Battery

Unraveling the Effects of Al Doping on the Electrochemical Properties of LiNi_0.5Co_0.2Mn_0.3O₂Using First Principles