Low-current-density stability of vanadium-based cathodes for aqueous zinc-ion batteries

Science Bulletin, Год журнала: 2024, Номер 69(6), С. 833 - 845

Опубликована: Янв. 23, 2024

Язык: Английский

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Oxygen vacancy chemistry in oxide cathodes

Chemical Society Reviews, Год журнала: 2024, Номер 53(7), С. 3302 - 3326

Опубликована: Янв. 1, 2024

This review focuses on the chemical thermodynamics and reaction kinetics of intrinsic anionic redox-mediated oxygen vacancies in oxide cathodes.

Язык: Английский

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Surface Gradient Ni‐Rich Cathode for Li‐Ion Batteries

Advanced Materials, Год журнала: 2024, Номер 36(33)

Опубликована: Июнь 24, 2024

Nickel-rich layered oxide cathode material LiNi

Язык: Английский

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Structure and Charge Regulation Strategy Enabling Superior Cycling Stability of Ni-Rich Cathode Materials

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(9), С. 11377 - 11388

Опубликована: Фев. 22, 2024

Ni-rich layered oxides LiNixCoyMn1–x–yO2 (NCMs, x > 0.8) are the most promising cathode candidates for Li-ion batteries because of their superior specific capacity and cost affordability. Unfortunately, NCMs suffer from a series formidable challenges such as structural instability incompatibility with commonly used electrolytes, which seriously hamper practical applications on large scale. Herein, Al/Ta codoping modification strategy is proposed to improve performance LiNi0.83Co0.1Mn0.07O2 cathode, as-prepared Al/Ta-modified delivers exceptional cycling stability retention 97.4% after 150 cycles at 1C an excellent rate high 143.2 mAh g–1 even 3C. Based experimental study, it found that NCM strengthened due regulated coordination oxygen by introducing robust Ta–O covalent bond, prevents structure collapsing. Moreover, reconstructed rock-salt-like surface capable effectively inhibiting interfacial side reactions well overgrowth cathode–electrolyte interface. Theoretically, energy Li/Ni mixing significantly increased introduction Al Ta elements in codoped NCM, leading inhibited adverse phase transition during cycling. A feasible pathway designing developing advanced materials provided this work.

Язык: Английский

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Phase compatible surface engineering to boost the cycling stability of single-crystalline Ni-rich cathode for high energy density lithium-ion batteries

Energy storage materials, Год журнала: 2024, Номер 72, С. 103788 - 103788

Опубликована: Сен. 1, 2024

Язык: Английский

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Residual alkali-evoked cross-linked polymer layer for anti-air-sensitivity LiNi0.89Co0.06Mn0.05O2 cathode

Journal of Energy Chemistry, Год журнала: 2024, Номер 92, С. 450 - 458

Опубликована: Янв. 21, 2024

Язык: Английский

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High Chaos Induced Multiple-Anion-Rich Solvation Structure Enabling Ultrahigh Voltage and Wide Temperature Lithium-Metal Batteries

ACS Nano, Год журнала: 2023, Номер 17(23), С. 24259 - 24267

Опубликована: Ноя. 27, 2023

The optimal electrolyte for ultrahigh energy density (>400 Wh/kg) lithium-metal batteries with a LiNi0.8Co0.1Mn0.1O2 cathode is required to withstand high voltage (≥4.7 V) and be adaptable over wide temperature range. However, the battery performance degraded by aggressive electrode–electrolyte reactions at voltage, while excessive growth of lithium dendrites usually occurs due poor kinetics low temperature. Accordingly, development electrolytes has encountered challenges in that there almost no simultaneously meeting above requirements. Herein, chaos design strategy proposed, which promotes formation weak solvation structures involving multiple anions. By tailoring Li+-EMC-DMC-DFOB–-PO2F2–-PF6– multiple-anion-rich sheath, robust inorganic-rich interphase obtained (EEI), resistant intense interfacial (4.7 (45 °C). In addition, Li+ weakened multiple-anion structure, benefit desolventization (−30 °C), greatly improving charge transfer inhibiting dendrite growth. This work provides an innovative manipulate further optimize chemistry applications.

Язык: Английский

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Synthesis, characterizations, and applications of vacancies-containing materials for energy storage systems

DeCarbon, Год журнала: 2024, Номер 3, С. 100037 - 100037

Опубликована: Март 1, 2024

Introduction of vacancies is a widely practiced method to improve the performance active materials in different energy systems, such as secondary batteries, electrocatalysis, and supercapacitors. Because can generate abundant localized electrons unsaturated cations, incorporation will significantly electrical conductivity, ion migration, provides additional sites storage materials. This article systematically reviews methods oxygen, nitrogen, or selenium vacancies, techniques characterize these vacancies. We summarize specific roles that play for each type device. Additionally, we provide insights into research progress challenges associated with future development technology various systems.

Язык: Английский

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Dual Modification for Low-Strain Ni-Rich Cathodes Toward Superior Cyclability in Pouch Full Cells

ACS Nano, Год журнала: 2024, Номер 18(34), С. 23380 - 23391

Опубликована: Авг. 19, 2024

Rapid capacity fading, interfacial instability, and thermal runaway due to oxygen loss are critical obstacles hindering the practical application commercialization of Ni-rich cathodes (LiNi

Язык: Английский

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Navigating thermal stability intricacies of high-nickel cathodes for high-energy lithium batteries

Nature Energy, Год журнала: 2025, Номер unknown

Опубликована: Март 7, 2025

Язык: Английский

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