Surface modification of Li(Li0.17Ni0.2Co0.05Mn0.58)O2 with LiAlSiO4 fast ion conductor as cathode material for Li-ion batteries

Sun, Yan; Li, F.; Qiao, Q. Q.; Cao, Jun; Wang, Yong-Long; Ye, S.H.

doi:10.1016/j.electacta.2015.07.085

Cited by 41 publications

(23 citation statements)

References 55 publications

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“…This may be ascribed to the diffusion of some La 3+ ions into the host structure of LMNC [5]. Similar phenomenon has been observed in ZrF 4 -coated and LiAlSiO 4 -coated Li-rich cathode materials [50,51]. From Figs.…”

Section: Electrochemical Measurementssupporting

confidence: 68%

“…From Figs. 5a 3 can effectively enhance the initial discharge capacity of LMNC due to the acceleration of the Li + interfacial diffusion kinetics, which is verified by the increased discharge plateau [51]. In addition, the low discharge capacity of LMNC-L5 electrode is due to the excessively thick coating layer, which increases the Li + diffusion path and decreases the electronic tunneling rate [51].…”

Section: Electrochemical Measurementsmentioning

confidence: 90%

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La2O3-coated Li1.2Mn0.54Ni0.13Co0.13O2 as cathode materials with enhanced specific capacity and cycling stability for lithium-ion batteries

Zhou

Tian

Deng

et al. 2016

Ceramics International

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Section: Electrochemical Measurementssupporting

confidence: 68%

Section: Electrochemical Measurementsmentioning

confidence: 90%

La2O3-coated Li1.2Mn0.54Ni0.13Co0.13O2 as cathode materials with enhanced specific capacity and cycling stability for lithium-ion batteries

Zhou

Tian

Deng

et al. 2016

Ceramics International

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“…For surface modification, numerous materials including phosphates, metal oxides, fluorides, and fast ionic conductors have been explored as coating layers to stabilize the surface of cathode materials. [12][13][14] Surface coating materials protect the active material from the direct attack of electrolyte and suppress the side reaction. Compared with the coating strategy, atomic doping reinforces the structural integrity of the Ni-rich cathodes by tuning the basic physicochemical properties of the cathode on crystal levels, such as phase transitions, metal-oxygen covalency, cation ordering charge redistribution, lattice parameters, and charge redistribution.…”

Section: Introductionmentioning

confidence: 99%

Stabilizing Ni‐Rich LiNi_0.92Co_0.06Al_0.02O₂ Cathodes by Boracic Polyanion and Tungsten Cation Co‐Doping for High‐Energy Lithium‐Ion Batteries

et al. 2020

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Layered nickel-rich transition metal oxide has been receiving much attention as high-energy-density cathode materials for rechargeable lithium-ion batteries. However, the severe capacity fading caused by bulk structural degradation of Ni-rich cathodes during lithiation/delithiation obstructs their commercialization. Herein, we modify the LiNi 0.92 Co 0.06 Al 0.02 O 2 (NCA92) cathode materials by W 6 + cation and BO 3 3À polyanion codoping to improve the structural stability and upgrade the electrochemical reversibility. The co-doped NCA92 materials show remarkably improved cycling stability at 1 C with a capacity retention of 93.4 % after 100 cycles, whereas the pristine cathodes exhibit poor capacity retention of 53.0 % and suffer severe structural deterioration. Further studies reveal that the particle fragmentation resulted from the inherent internal strain and the structural degradation upon cycling can be effectively mitigated by W 6 + cation and BO 3 3À polyanion codoping. Besides, W 6 + and BO 3 3À co-doping could enlarge the interlayer spacing of NCA92, thus increasing lithium-ion diffusion coefficient, which is conducive to enhancing the rate capability. The present work demonstrates that cationic-anionic co-doping is an effective strategy to maintain the structural stability of Ni-rich cathode materials, and it promotes the development of stable cathode materials for high energy density lithium-ion batteries.

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“…However, insufficient energy density due to the limited lithium utilization (<60 %) in the structure of LCO, as well as the high cost of cobalt, restricts its broad applications in stationary energy storage and electric vehicles (EVs) . Hence, intensive researches have been implemented, which focus on developing alternative cathode materials with higher lithium utilization and larger energy density, to expand the application field of LIBs . Furthermore, LIBs for grid‐level energy storage and EVs are expected to offer low cost, superior safety and fast charging .…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrochemical and Thermal Stabilities of Li[Ni_0.88Co_0.09Al_0.03]O₂ Cathode Material by La₄NiLiO₈ Coating for Li–Ion Batteries

et al. 2020

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Nickel-rich layered oxides with high reversible capacity are considered as the next-generation cathode materials for lithium-ion batteries (LIBs). However, capacity degradation induced by side reactions and structural degradation on the surface has been the main obstacle for their applications. In this work, a stable layer of La 4 NiLiO 8 is coated on Ni-rich material of Li[Ni 0.88 Co 0.09 Al 0.03 ]O 2 (NCA) by a facile method. The formation process of the La 4 NiLiO 8 layer is analyzed from both thermody-namic and dynamics aspects. The results indicate that oxygen migration evolution near the NCA surface is effectively reduced, thus improving the structural stability of the lattice and alleviating the side reactions on the surface. The electrochemical and thermal stabilities of NCA material are remarkably improved by coating the La 4 NiLiO 8 layer. This work provides a strategy for effective coating functional materials on Ni-rich cathode materials for LIBs.

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Surface modification of Li(Li0.17Ni0.2Co0.05Mn0.58)O2 with LiAlSiO4 fast ion conductor as cathode material for Li-ion batteries

Cited by 41 publications

References 55 publications

La2O3-coated Li1.2Mn0.54Ni0.13Co0.13O2 as cathode materials with enhanced specific capacity and cycling stability for lithium-ion batteries

La2O3-coated Li1.2Mn0.54Ni0.13Co0.13O2 as cathode materials with enhanced specific capacity and cycling stability for lithium-ion batteries

Stabilizing Ni‐Rich LiNi_0.92Co_0.06Al_0.02O₂ Cathodes by Boracic Polyanion and Tungsten Cation Co‐Doping for High‐Energy Lithium‐Ion Batteries

Enhanced Electrochemical and Thermal Stabilities of Li[Ni_0.88Co_0.09Al_0.03]O₂ Cathode Material by La₄NiLiO₈ Coating for Li–Ion Batteries

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Surface modification of Li(Li0.17Ni0.2Co0.05Mn0.58)O2 with LiAlSiO4 fast ion conductor as cathode material for Li-ion batteries

Cited by 41 publications

References 55 publications

La2O3-coated Li1.2Mn0.54Ni0.13Co0.13O2 as cathode materials with enhanced specific capacity and cycling stability for lithium-ion batteries

La2O3-coated Li1.2Mn0.54Ni0.13Co0.13O2 as cathode materials with enhanced specific capacity and cycling stability for lithium-ion batteries

Stabilizing Ni‐Rich LiNi0.92Co0.06Al0.02O2 Cathodes by Boracic Polyanion and Tungsten Cation Co‐Doping for High‐Energy Lithium‐Ion Batteries

Enhanced Electrochemical and Thermal Stabilities of Li[Ni0.88Co0.09Al0.03]O2 Cathode Material by La4NiLiO8 Coating for Li–Ion Batteries

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Stabilizing Ni‐Rich LiNi_0.92Co_0.06Al_0.02O₂ Cathodes by Boracic Polyanion and Tungsten Cation Co‐Doping for High‐Energy Lithium‐Ion Batteries

Enhanced Electrochemical and Thermal Stabilities of Li[Ni_0.88Co_0.09Al_0.03]O₂ Cathode Material by La₄NiLiO₈ Coating for Li–Ion Batteries