Synthesis of hollow peanut-like hierarchical mesoporous LiNi1/3Co1/3Mn1/3O2 cathode materials with exceptional cycle performance for lithium-ion batteries by a simple self-template solid-state method

Fang, Yingchun; Huang, Yudai; Tong, Wei; Cai, Yanfei; Wang, Xingchao; Guo, Yong; Jia, Dianzeng; Zong, Jingfeng

doi:10.1016/j.jallcom.2018.01.257

Cited by 32 publications

(9 citation statements)

References 52 publications

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“…In addition, the ratio of the (003) and (104) peak intensities ( I (003) / I (104) ) in the h-LNCM pattern (1.42) is higher than that in the b-LNCM pattern, indicating less cation mixing in the former material. The lattice parameters of h-LNCM were determined to be a = 2.867 Å, c = 14.241 Å, and c / a = 4.97, in good agreement with former studies. − A high c / a value indicates well-ordered transition-metal ions in the metal layer, along with a minimal degree of cation mixing.…”

Section: Results and Discussionsupporting

confidence: 83%

Compound-Hierarchical-Sphere LiNi_0.5Co_0.2Mn_0.3O₂: Synthesis, Structure, and Electrochemical Characterization

Wang

Zhang

et al. 2018

ACS Appl. Mater. Interfaces

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Compound-hierarchical-sphere-structured LiNiCoMnO was synthesized to improve the electrochemical performance of this material in lithium-ion battery cathodes. The product was found to have a large specific surface area, good electron and ion conductivities, a stable interface, and a robust nano/microhierarchical structure, all of which improved the rate capability, capacity, and cycling stability of this material. When this material was cycled between 3.0 and 4.3 V, a high discharge capacity of 180.8 mA h g was obtained at 0.2C with 94.0% capacity retention after 100 cycles. In addition, a superior discharge capacity of 148.9 mA h g was observed at a high current density of 1600 mA g. This compound-hierarchical-sphere LiNiCoMnO is readily prepared using our ternary coprecipitation method. We also propose an effector unit theory to explain the enhanced cycling stability of this substance and believe that the present results will assist in the design of cathode materials for lithium-ion batteries.

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Section: Results and Discussionsupporting

confidence: 83%

Compound-Hierarchical-Sphere LiNi_0.5Co_0.2Mn_0.3O₂: Synthesis, Structure, and Electrochemical Characterization

Wang

Zhang

et al. 2018

ACS Appl. Mater. Interfaces

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“…However, the performance of NCM 111 still can be improved to meet the demand of high power-density and rate capability for power battery through regulating its structure and morphology. And the research of zero-dimensional hollow microspheres, one-dimensional nanofibers, two-dimensional nanosheets and so on, is flourishing in recent years [25]. For example, Peng et al synthesized three types of self-assembled NCM 111 nanosheet cathodes with different surface structures and packing degrees via hydrothermal reaction followed by a stepwise calcination process.…”

Section: Introductionmentioning

confidence: 99%

High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure

Sheng

Deng

et al. 2020

Energies

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LiNixCoyMnzO2 (LNCM)-layered materials are considered the most promising cathode for high-energy lithium ion batteries, but suffer from poor rate capability and short lifecycle. In addition, the LiNi1/3Co1/3Mn1/3O2 (NCM 111) is considered one of the most widely used LNCM cathodes because of its high energy density and good safety. Herein, a kind of NCM 111 with semi-closed structure was designed by controlling the amount of urea, which possesses high rate capability and long lifespan, exhibiting 140.9 mAh·g−1 at 0.85 A·g−1 and 114.3 mAh·g−1 at 1.70 A·g−1, respectively. The semi-closed structure is conducive to the infiltration of electrolytes and fast lithium ion-transfer inside the electrode material, thus improving the rate performance of the battery. Our work may provide an effective strategy for designing layered-cathode materials with high rate capability.

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“…Those advantages made LIBs one of the most promising energy storage candidates for power tools, portable devices, and hybrid electric vehicles. [1][2][3][4][5][6][7] LiNi 0.5 Co 0.2 Mn 0.3 O 2 (NCM523), with its laminar structure, is regarded as a potential cathode material to replace commercial LiCoO 2 (LCO) electrodes. Compared with LCO, NCM523 has lower toxicity, higher capacity, lower cost, and better safety properties.…”

Section: Introductionmentioning

confidence: 99%

“…Lithium‐ion batteries (LIBs) have large discharge capacity, high energy density, high rate capability, excellent charge‐discharge cycling performance, and low cost. Those advantages made LIBs one of the most promising energy storage candidates for power tools, portable devices, and hybrid electric vehicles . LiNi 0.5 Co 0.2 Mn 0.3 O 2 (NCM523), with its laminar structure, is regarded as a potential cathode material to replace commercial LiCoO 2 (LCO) electrodes.…”

Section: Introductionmentioning

confidence: 99%

Surface modification of LiNi _0.5 Co _0.2 Mn _0.3 O ₂ cathode materials with Li ₂ O‐B ₂ O ₃ ‐LiBr for lithium‐ion batteries

Wang

2019

Int J Energy Res

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Summary LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode material suffers from phase transformation and electrochemical performance degradation as its main drawbacks, which are strongly dependent on the surface state of NCM523. Herein, an effective surface modification approach was demonstrated; namely, the fast lithium‐ion conductor (Li2O‐B2O3‐LiBr) was coated on NCM523. The Li2O‐B2O3‐LiBr coating layer as a protecting shell can prevent NCM523 particles from corrosion by the acidic electrolyte, leading to a superior discharge capacity, rate capability, and cycling stability. At room temperature, the Li2O‐B2O3‐LiBr–coated NCM523 exhibited an excellent capacity retention of 87.7% after 100 cycles at the rate of 1 C, which is remarkably better than that (29.8%) without the uncoated layer. Furthermore, the coating layer also increased the discharge capacity of NCM523 cathode material from 68.7 to 117.0 mAh g−1 at 5 C. Those can be attributed to the reduction in the electrode polarization and improvement in the electrode conductivity, which was supported by electrochemical impedance spectroscopy and cyclic voltammetry measurements.

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Synthesis of hollow peanut-like hierarchical mesoporous LiNi1/3Co1/3Mn1/3O2 cathode materials with exceptional cycle performance for lithium-ion batteries by a simple self-template solid-state method

Cited by 32 publications

References 52 publications

Compound-Hierarchical-Sphere LiNi_0.5Co_0.2Mn_0.3O₂: Synthesis, Structure, and Electrochemical Characterization

Compound-Hierarchical-Sphere LiNi_0.5Co_0.2Mn_0.3O₂: Synthesis, Structure, and Electrochemical Characterization

High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure

Surface modification of LiNi _0.5 Co _0.2 Mn _0.3 O ₂ cathode materials with Li ₂ O‐B ₂ O ₃ ‐LiBr for lithium‐ion batteries

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Synthesis of hollow peanut-like hierarchical mesoporous LiNi1/3Co1/3Mn1/3O2 cathode materials with exceptional cycle performance for lithium-ion batteries by a simple self-template solid-state method

Cited by 32 publications

References 52 publications

Compound-Hierarchical-Sphere LiNi0.5Co0.2Mn0.3O2: Synthesis, Structure, and Electrochemical Characterization

Compound-Hierarchical-Sphere LiNi0.5Co0.2Mn0.3O2: Synthesis, Structure, and Electrochemical Characterization

High-Rate Layered Cathode of Lithium-Ion Batteries through Regulating Three-Dimensional Agglomerated Structure

Surface modification of LiNi 0.5 Co 0.2 Mn 0.3 O 2 cathode materials with Li 2 O‐B 2 O 3 ‐LiBr for lithium‐ion batteries

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Compound-Hierarchical-Sphere LiNi_0.5Co_0.2Mn_0.3O₂: Synthesis, Structure, and Electrochemical Characterization

Compound-Hierarchical-Sphere LiNi_0.5Co_0.2Mn_0.3O₂: Synthesis, Structure, and Electrochemical Characterization

Surface modification of LiNi _0.5 Co _0.2 Mn _0.3 O ₂ cathode materials with Li ₂ O‐B ₂ O ₃ ‐LiBr for lithium‐ion batteries