Long-term chemothermal stability of delithiated NCA in polymer solid-state batteries

Besli, Münir M.; Usubelli, Camille; Metzger, Michael; Hellstrom, Sondra; Sainio, Sami; Nordlund, Dennis; Christensen, Jake; Schneider, G.; Doeff, Marca M.; Kuppan, Saravanan

doi:10.1039/c9ta11103d

Cited by 12 publications

(5 citation statements)

References 61 publications

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“…S9b †). Moreover, a larger I b /I a ratio and the blue-shift Ce M 4 and M 5 adsorption peak positions also indicated the existence of more positive-charged Ni species [43][44][45][46] and Ce 3+ (ref. 47 and 48) species in the 63% Ni/CeO 2 -CP catalyst (Fig.…”

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

Enhanced Ni–Ce interactions to enable efficient low-temperature catalytic CO₂ methanation

Zhang

Feng

Yan

2022

Catal. Sci. Technol.

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Section: Catalysis Science and Technology Papermentioning

confidence: 99%

Enhanced Ni–Ce interactions to enable efficient low-temperature catalytic CO₂ methanation

Zhang

Feng

Yan

2022

Catal. Sci. Technol.

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“…Rechargeable magnesium batteries (rMBs) are prospective candidates for sustainable energy storage systems and have drawn considerable interest in recent years owing to high energy exhibited good mechanical strength and demonstrated as an efficient approach to prevent pulverization via forming internal weak grain boundaries after cycling for improving long-term cycling stability. [18] Although polycrystalline materials can effectively accommodate high lattice strain, their anisotropy between polycrystal grains usually aggravate nonuniform volume change. [19] Severe electrochemical side reactions are found to preferentially start on polycrystalline particle surface, and the formation of abundant intercrystalline cracks can further expose much more surfaces available for electrolyte infiltration and side reactions, which could accelerate battery performance degradation.…”

Section: Introductionmentioning

confidence: 99%

Pulverization‐Tolerant CuSe Nanoflakes with High (110) Planar Orientation for High‐Performance Magnesium Storage

Zhang

Zhu

Wang

et al. 2021

Adv Funct Materials

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Copper chalcogenides are of great interest as conversion-type cathode materials due to their large specific capacity for rechargeable magnesium batteries, yet are subjected to severe capacity fading brought about by structure collapse in repetitive charge-discharge cycling. Herein, single-crystalline and (110) preferentially oriented CuSe nanoflakes are designed via a temperaturecontrolled crystal growth route under microwave irradiation. The as-prepared CuSe nanoflake cathode materials can present high reversible capacity (204 mAh g −1 at 200 mA g −1 current density), outstanding rate capability, and remarkable long-term cycling stability (≈0.095% capacity decay per cycle at 1 A g −1 within 700 cycles). The multistep reversible conversion mechanism of the CuSe nanoflake cathode materials is evidenced by ex situ X-ray photoelectron spectroscopy and X-ray diffraction. Structure evolution investigation suggests that the single-crystalline CuSe nanoflakes can exhibit relatively durable structural stability. The desirable cycling stability can be ascribed to the excellent pulverization-tolerance of the CuSe nanoflake cathode materials endowed by the multistep reversible conversion mechanism and the single-crystalline feature. Furthermore, the preferentially-oriented (110) active plane is favorable for electrochemical reactions to ensure high specific capacity. This work can afford a crystal engineering strategy to fabricate high-performance conversion-type electrode materials for rechargeable magnesium batteries.

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“…[27] In general, in the case of Ni-based layered materials, it is known that a NiO-like rock-salt phase is formed on the surface after long-term cycling. [27,57] To track the growth of NiO-like rock-salt phase on the surface, Ni L-edge soft XAS was measured according to the different cycled states (Figure S6, Supporting Information). The relative intensity of the peak corresponding to the Ni 2+ electronic structure (≈845.5 eV) becomes higher as the cycle number increases, clearly showing that the NiO-like rocksalt phase grows at the particle surface during cycling at 45°C.…”

Section: Resultsmentioning

confidence: 99%

Decoupling the Capacity Fading in Ni‐Rich Layered Materials during High‐Temperature Cycling in the Full‐Cell System

Kim,

Lee,

Lee

et al. 2023

Advanced Energy Materials

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The performance of commercial lithium‐ion batteries (LIBs) tends to degrade over time owing to the deterioration of key components, including cathode, anode, and electrolyte. To enhance performance, it is crucial to gain insights into the actual deterioration state of each element. Here, the high‐temperature deterioration of a Ni‐rich layered cathode is investigated, which is widely used in electric vehicles. In the refresh process after a prolonged cycle, a significant recovery of the lattice structure predominantly occurs in the discharge region. This pseudo‐deterioration of the Ni‐rich cathode within the full‐cell system is mainly due to the consumption of the Li‐ion forming the solid electrolyte interphase layer at the graphite anode during the cycle. Moreover, irreversible deteriorations that are not restored through the refresh process are observed in both charge and discharge regions. Structure analyses reveal that the long‐term cycling at the high temperature leads to a mixed fading of charge and discharge via various deterioration such as the formation of NiO‐like rock salt phase on the cathode surface and increased cation disorder in the bulk. These findings deepen the understanding of the deterioration behavior of Ni‐rich cathodes in full‐cell systems, providing insights for enhancing the performance of high‐temperature cycling.

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Long-term chemothermal stability of delithiated NCA in polymer solid-state batteries

Abstract: Changes in nickel oxidation state of chemically delithiated Li0.3Ni0.8Co0.15Al0.05O2 (NCA) in bulk and surface after 35 days @ 80 °C are strongly depending on the type of polymer and lithium salt in the catholyte matrix.

Cited by 12 publications

References 61 publications

Enhanced Ni–Ce interactions to enable efficient low-temperature catalytic CO₂ methanation

Enhanced Ni–Ce interactions to enable efficient low-temperature catalytic CO₂ methanation

Pulverization‐Tolerant CuSe Nanoflakes with High (110) Planar Orientation for High‐Performance Magnesium Storage

Decoupling the Capacity Fading in Ni‐Rich Layered Materials during High‐Temperature Cycling in the Full‐Cell System

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Long-term chemothermal stability of delithiated NCA in polymer solid-state batteries

Abstract: Changes in nickel oxidation state of chemically delithiated Li0.3Ni0.8Co0.15Al0.05O2 (NCA) in bulk and surface after 35 days @ 80 °C are strongly depending on the type of polymer and lithium salt in the catholyte matrix.

Cited by 12 publications

References 61 publications

Enhanced Ni–Ce interactions to enable efficient low-temperature catalytic CO2 methanation

Enhanced Ni–Ce interactions to enable efficient low-temperature catalytic CO2 methanation

Pulverization‐Tolerant CuSe Nanoflakes with High (110) Planar Orientation for High‐Performance Magnesium Storage

Decoupling the Capacity Fading in Ni‐Rich Layered Materials during High‐Temperature Cycling in the Full‐Cell System

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Enhanced Ni–Ce interactions to enable efficient low-temperature catalytic CO₂ methanation

Enhanced Ni–Ce interactions to enable efficient low-temperature catalytic CO₂ methanation