Corrigendum to “Effects of precursor, synthesis time and synthesis temperature on the physical and electrochemical properties of Li(Ni1−−Co Mn )O2 cathode materials” [J. Power Sources 248 (2014) 180–189]

Xu, Zhou; Xiao, Lingli; Wang, Fei; Wu, Kuichen; Zhao, Liutao; Li, Manrong; Zhang, Hongli; Wu, Qi; Wang, Jianbo

doi:10.1016/j.jpowsour.2013.11.094

Cited by 8 publications

(7 citation statements)

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“…It confirms that the phase transformation in the sintering process is fast, but the cation ordering is a lengthy process and requires a large amount of sintering time. [28,29] Figure 3d-h shows the ex situ SEM versus holding time at 750 °C. In the blending process (Figure 3d), the spherical morphology of the precursor is not destroyed, and the grounded lithium carbonate is uniformly dispersed around the Ni 0.8 Co 0.15 Al 0.05 O x microspheres.…”

Section: Resultsmentioning

confidence: 99%

Highly‐Dispersed Submicrometer Single‐Crystal Nickel‐Rich Layered Cathode: Spray Synthesis and Accelerated Lithium‐Ion Transport

Leng

Wang

Peng

et al. 2021

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For conventional polycrystalline Ni‐rich cathode material consisting of numerous primary particles in disordered orientation, the crystal anisotropy in charge/discharge process results in the poor rate capability and rapid capacity degradation. In this work, highly‐dispersed submicron single‐crystal LiNi0.8Co0.15Al0.05O2 (SC‐NCA) cathode is efficiently prepared by spray pyrolysis (SP) technique followed by a simple solid‐state lithiation reaction. Porous Ni0.8Co0.15Al0.05Ox precursor prepared via SP exhibits high chemical activity for lithiation reaction, enabling the fabrication of single‐crystal cathode at a relatively low temperature. In this way, the contradiction between high crystallinity and cation disordering is well balanced. The resulted optimized SC‐NCA shows polyhedral single‐crystal morphology with moderate grain size (≈1 μm), which are beneficial to shortening the Li+ diffusion path and improving the structural stability. As cathode for lithium ion batteries, SC‐NCA delivers a high discharge capacity of 202 and 140 mAh g−1 at 0.1 and 10 C, respectively, and maintains superior capacity retention of 161 mAh g−1 after 200 cycles at 1C. No micro‐crack is observed in the cycled SC‐NCA particles, indicating such single‐crystal morphology can greatly relieve the anisotropic micro‐strain. This effective, continuous and adaptable strategy for preparing single‐crystal Ni‐rich cathode without any additive may accelerate their practical application.

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Section: Resultsmentioning

confidence: 99%

Highly‐Dispersed Submicrometer Single‐Crystal Nickel‐Rich Layered Cathode: Spray Synthesis and Accelerated Lithium‐Ion Transport

Leng

Wang

Peng

et al. 2021

Small

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“…To resolve the above-mentioned problems, many research groups have focused on (i) adjusting the composition of transition metals (TMs) and (ii) , substituting different TMs or non-TMs into the layered cathode structure in order to ensure high reversible capacity, stable cyclic performance, and the structural stability of the cathode. − Recently, Sun et al reported on a concentration-gradient layered cathode, which was designed to improve electrochemical performance and meet rigorous safety requirements for commercial use . In another study by Cho and co-workers, a pillar layer was introduced on the surface of the layered cathode in order to suppress interslab collapse and prevent particle pulverization .…”

Section: Introductionmentioning

confidence: 99%

Design of Nickel-rich Layered Oxides Using d Electronic Donor for Redox Reactions

Kim

Lim

et al. 2015

Chem. Mater.

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Through first-principles calculations and experimental observations, we first present the correlation between the Ni and Mn ratio and the redox behaviors of the layered NCM cathodes. The equilibrium potentials based on redox reactions of Ni 2+ /Ni 3+ are highly dependent on the Mn ratio (NCM523 and NCM721: ∼3.7 and 3.5 V) because of a donor electron, in the e g band, transferred from Mn to Ni owing to their crystal field splitting (CFS) with different electronegativities, leading to oxidation states of Ni 2+ -like and Mn 4+ . Considering the electronic donor (Mn) based on CFS with electronegativity of transition metals (TMs), we finally expect V as a promising doping source to provide donor electrons for Ni redox reactions in Ni-rich layered oxides, leading to be higher delithiation potentials (NCV523: 3.8 V). From our theoretical calculations in the NCV oxide, the oxidation states of Ni and V are stable Ni 2+ -like and V 5+ , respectively, and the fractional d-band fillings of Ni are the highest value as compared with NCM523 and LiNiO 2 because of two donor electrons in the t 2g band. Based on the underlying understanding on the CFS with electronegativity of TMs, it would be possible to design new Ni-rich layered cathodes with higher energy for use in Li-ion batteries.

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“…and low cost. [269][270][271][272] Sun and coworkers designed a high energy Ni-rich NCM||CNT-Si full cell, in which the CNT-Si anode material was obtained through a simple ball-milling process. [273] Benefiting from the outstanding structural stability of the CNT-Si material, the Ni-rich NCM||CNT-Si full cell delivered an average CE value of 99.8% and capacity retention of 81% after 500 cycles (Figure 9c).…”

Section: Nanowire Structure Si Materialsmentioning

confidence: 99%

Silicon‐Based Lithium Ion Battery Systems: State‐of‐the‐Art from Half and Full Cell Viewpoint

Guo

Dong

Wang

et al. 2021

Adv Funct Materials

121

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Lithium‐ion batteries (LIBs) have been occupying the dominant position in energy storage devices. Over the past 30 years, silicon (Si)‐based materials are the most promising alternatives for graphite as LIB anodes due to their high theoretical capacities and low operating voltages. Nevertheless, their extensive volume changes in battery operation causes the structural collapse of Si‐based electrodes, as well as severe side reactions. In this review, the preparation methods and structure optimizations of Si‐based materials are highlighted, as well as their applications in half and full cells. Meanwhile, the developments of promising electrolytes, binders and separators that match Si‐based electrodes in half and full cells have made great progress. Pre‐lithiation technology has been introduced to compensate for irreversible Li+ consumption during battery operation, thereby improving the energy densities and lifetime of Si‐based full cells. More importantly, almost all related mechanisms of Si‐based electrodes in half and full cells are summarized in detail. It is expected to provide a comprehensive insight on how to develop high‐performance Si‐based full cells. The work can help us understand what happens during the lithiation process, the primary causes of Si‐based half and full cells failure, and strategies to overcome these challenges.

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Corrigendum to “Effects of precursor, synthesis time and synthesis temperature on the physical and electrochemical properties of Li(Ni1−−Co Mn )O2 cathode materials” [J. Power Sources 248 (2014) 180–189]

Cited by 8 publications

References 0 publications

Highly‐Dispersed Submicrometer Single‐Crystal Nickel‐Rich Layered Cathode: Spray Synthesis and Accelerated Lithium‐Ion Transport

Highly‐Dispersed Submicrometer Single‐Crystal Nickel‐Rich Layered Cathode: Spray Synthesis and Accelerated Lithium‐Ion Transport

Design of Nickel-rich Layered Oxides Using d Electronic Donor for Redox Reactions

Silicon‐Based Lithium Ion Battery Systems: State‐of‐the‐Art from Half and Full Cell Viewpoint

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