The role of dopants in mitigating the chemo‐mechanical degradation of Ni‐rich cathode: A critical review

EcoEnergy, Год журнала: 2025, Номер unknown

Опубликована: Янв. 20, 2025

Abstract Ni‐rich cathodes are more promising candidates to the increasing demand for high capacity and ability operate at voltages. However, Ni content creates a trade‐off between energy density cycling stability, mainly caused by chemo‐mechanical degradation. Oxygen evolution, cation mixing, rock salt formation, phase transition, crack formation contribute degradation process. To overcome this problem, strategies such as doping, surface coating, core‐shell structures have been employed. The advantage of doping is engineer cathode surface, structure, particle morphology simultaneously. This review aims summarize recent advances in understanding mechanism role different dopants enhancing thermal stability overall electrochemical performance. pinning pillaring effects on suppressing oxygen transition introduced. It found that higher ionic radii enable reside particles, preserving refining suppress formation. Finally, effect Li ion diffusion, rate capability, long‐term discussed.

Язык: Английский

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Interfacial Engineering of Polymer Solid‐State Lithium Battery Electrolytes and Li‐Metal Anode: Current Status and Future Directions

Small, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 20, 2024

Abstract A combination of material innovations, advanced manufacturing, battery management systems, and regulatory standards is necessary to improve the energy density safety lithium (Li) batteries. High‐energy‐density solid‐state Li‐batteries have potential revolutionize industries technologies, making them a research priority. The improved compatibility with high‐capacity electrode materials makes solid‐stateLi‐batteries polymer solid‐electrolytes an attractive option for applications where are critical. While polymer‐based hold enormous promise, there still several challenges that must be addressed, particularly regarding interface between solid‐electrolyte Lianode. There significant advancements in improving performance Li batteries, researchers continue explore new methods address these challenges. These improvements critical enabling widespread adoption invariety applications, from electrical vehicles portable electronics. Here, common its Lianode first introduced, highlighting trend solid‐state‐electrolyte toward enhancing stability, safety, Li‐batteries. This includes developing novel properties, exploring fabrication techniques, integrating electrolytes into designs optimize both density.

Язык: Английский

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Flexible upper cut-off voltage regulation for life extension of lithium-ion batteries

Energy, Год журнала: 2025, Номер unknown, С. 134776 - 134776

Опубликована: Янв. 1, 2025

Язык: Английский

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New challenges for lithium fluoride: From dosimeter to solid-state batteries (review)

Next Materials, Год журнала: 2025, Номер 8, С. 100548 - 100548

Опубликована: Фев. 20, 2025

Язык: Английский

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Investigating the impact of Li/Ni cation mixing asymmetry on the structural and electrochemical performance of NCM811

Journal of Energy Storage, Год журнала: 2025, Номер 124, С. 116854 - 116854

Опубликована: Май 2, 2025

Язык: Английский

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Aging mechanism of Ni-rich cathode-based lithium-ion batteries: Focusing on upper cut-off voltages

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 157026 - 157026

Опубликована: Окт. 1, 2024

Язык: Английский

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