Improved rate performance of nanoscale cross-linked polyacrylonitrile-surface-modified LiNi0.8Co0.1Mn0.1O2 lithium-ion cathode material with ion and electron transmission channels

Liang, Difei; Wei, Jian; Ji, Yuxuan; Chen, Bing; Li, Xueting; Li, Xifei

doi:10.1039/d2nr04773j

Cited by 11 publications

(5 citation statements)

References 56 publications

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“…The 1TPA@NCM811 cathode retains 82% of its initial discharge specific capacity after 100 cycles, while the NCM811 cathode discharge capacity retention rate is only 74%. Furthermore, the as-prepared 1TPA@NCM811 cathode exhibits similar/even better electrochemical performances compared with some published works, ,− especially in initial capacity, rate capability, and capacity decay rate (over 100 cycles at 1C), as shown in Figure e.…”

Section: Resultssupporting

confidence: 68%

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi_0.8Co_0.1Mn_0.1O₂ Cathode with Enhanced Electrochemical Performances

Wang

Lin

et al. 2023

ACS Appl. Energy Mater.

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Although the LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) material has a high energy density, poor cycling stability and inferior rate capability restrict its commercialization. Surface modification is an effective strategy to improve the electrochemical performance of the NCM811 cathode. Herein, terephthalic acid (TPA) is introduced as a surface-modifying material to functionalize the NCM811 because of its multiple advantages, such as reducing the surface alkalinity and activity of the NCM811, providing a vast electronic channel and Li + diffusion pathway, and inhibiting irreversible phase transition. As proof, the asoptimized 1TPA@NCM811 cathode delivers an enhanced initial discharge specific capacity over 216 mA h g −1 , an optimized rate capability up to 5C, and a reduced irreversible capacity loss after 100 charge−discharge cycling times at 1C. Therefore, this work provides a potential pathway to effectively boost the electrochemical performance of the NCM811 cathode for its practical application.

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Section: Resultssupporting

confidence: 68%

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi_0.8Co_0.1Mn_0.1O₂ Cathode with Enhanced Electrochemical Performances

Wang

Lin

et al. 2023

ACS Appl. Energy Mater.

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“…These include enhancing the ionic conductivity of the cathode material, fostering electron transfer, promoting lithium-ion diffusion dynamics, stabilizing the surface structure, and preventing direct contact between the cathode material and electrolyte. In the interim, inert compounds like oxides, − fluorides, phosphates, − as well as conductive materials, , such as carbon-based materials and lithium-containing compounds, are primarily used in coating strategies. The elemental doping of the bulk structure, in contrast, is modified at the atomic level.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Strategy Using Doping and Polymeric Coating Enables High-Performance High-Nickel Layered Cathodes for Lithium-Ion Batteries

Chang

Yan

et al. 2023

J. Phys. Chem. C

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As one of the most promising cathode materials for lithium-ion batteries, nickel-rich layered oxide LiNi0.83Co0.11Mn0.06O2 (NCM83) has an inherent issue with rapid capacity decay caused by phase change and interface side reactions during the charge/discharge cycling. Herein, an effectively synergistic strategy for improving the structural stability and electrochemical performance of NCM83 cathodes has been proposed, combining surface polymeric coating with bulk doping by the high-temperature solid-phase method. The comprehensive results demonstrate that the niobium (Nb) element can be successfully bulk-doped into the crystal lattice, which could increase the layer spacing, thus stabilizing the crystal structure and minimizing the Li+/Ni2+ mixing in the as-prepared NCM83 cathode. Meanwhile, a small amount of Nb in the form of oxide and a layer of polyaniline (PANI) was coated on the NCM83 cathode’s surface. This not only can prevent electrolyte erosion and inhibit side reactions but also can effectively improve the transport coefficient of Li+ during the charge and discharge process. The optimized NCM83 cathode exhibited outstanding discharge-specific capacity (236.79 mAh g–1 at 0.2 C rate and 215.67 mAh g–1 at 2 C rate), stable cycling performance (capacity retention of 84.4% after 100 cycles at 2 C), and excellent rate performance (150.58 mAh g–1 at 10 C) by taking advantage of the synergistic effects. The synergistic strategy using Nb doping in combination with a surface polymeric coating can enhance the fundamental understanding of the high-nickel layered oxide cathodes for lithium-ion batteries.

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“…[17][18][19] NCM811, as a classic high-nickel ternary cathode material, has been successfully synthesized with different crystal structures in experiments. 20 Nevertheless, different teams have prepared NCM811 cathode materials with different electrochemical properties. Manthiram and his co-workers prepared NCM811 cathode materials with discharge (0.1 C rate) specific capacities of 195 mA h g −1 and 220 mA h g −1 at 2.8-4.3 V and 4.5-4.6 V operating voltage ranges, respectively.…”

Section: Introductionmentioning

confidence: 99%

Quasi-dynamic study of electrochemical properties of O3-high-Ni ternary single-crystal cathode materials with mirror symmetry: a first-principles study

Zhou,

Wang,

Cui

2023

Nanoscale

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Improved rate performance of nanoscale cross-linked polyacrylonitrile-surface-modified LiNi_0.8Co_0.1Mn_0.1O₂ lithium-ion cathode material with ion and electron transmission channels

Abstract: The uniform and continuous nano cross-linked polyacrylonitrile coating was prepared to help avoid direct contact between LiNi0.8Co0.1Mn0.1O2 and the electrolyte, enhancing its interfacial stability.

Cited by 11 publications

References 56 publications

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi_0.8Co_0.1Mn_0.1O₂ Cathode with Enhanced Electrochemical Performances

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi_0.8Co_0.1Mn_0.1O₂ Cathode with Enhanced Electrochemical Performances

Synergistic Strategy Using Doping and Polymeric Coating Enables High-Performance High-Nickel Layered Cathodes for Lithium-Ion Batteries

Quasi-dynamic study of electrochemical properties of O3-high-Ni ternary single-crystal cathode materials with mirror symmetry: a first-principles study

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Improved rate performance of nanoscale cross-linked polyacrylonitrile-surface-modified LiNi0.8Co0.1Mn0.1O2 lithium-ion cathode material with ion and electron transmission channels

Abstract: The uniform and continuous nano cross-linked polyacrylonitrile coating was prepared to help avoid direct contact between LiNi0.8Co0.1Mn0.1O2 and the electrolyte, enhancing its interfacial stability.

Cited by 11 publications

References 56 publications

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi0.8Co0.1Mn0.1O2 Cathode with Enhanced Electrochemical Performances

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi0.8Co0.1Mn0.1O2 Cathode with Enhanced Electrochemical Performances

Synergistic Strategy Using Doping and Polymeric Coating Enables High-Performance High-Nickel Layered Cathodes for Lithium-Ion Batteries

Quasi-dynamic study of electrochemical properties of O3-high-Ni ternary single-crystal cathode materials with mirror symmetry: a first-principles study

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Improved rate performance of nanoscale cross-linked polyacrylonitrile-surface-modified LiNi_0.8Co_0.1Mn_0.1O₂ lithium-ion cathode material with ion and electron transmission channels

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi_0.8Co_0.1Mn_0.1O₂ Cathode with Enhanced Electrochemical Performances

Terephthalic Acid Surface-Functionalized Ni-Rich LiNi_0.8Co_0.1Mn_0.1O₂ Cathode with Enhanced Electrochemical Performances