Flexible and Scalable Magnesium Replenishment in NCM Cathode Enabled by Mobile Mg2+ Enriched MgV2O4 DOI
Qiang Qiu, Jiafeng Ruan, Wei Zhou

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 27, 2025

Abstract A small amount of Mg 2+ doping can show a significant effect on the surface protection and structural stability nickel‐rich layered oxide cathode, but traditional process involves completely changing initial raw material proportions with subsequent trial error adjustments. Herein, concept release film is proposed, in which easily permeate into various cathodes during cycling. Meanwhile, to realize this concept, MgV 2 O 4 mobile structures then fabricated self‐supporting membrane are synthesized. As protective layer for situ electrochemical process, providing reinforcement cathode as “pillar” within lattice. Thanks membrane, cycle life LiNi o.8 Co 0.1 Mn (NCM811) coupled interlayer at 1.0 C increased by 1.9 times compared bare NCM811. Furthermore, novel releasing demonstrates excellent versatility, enabling other nickel‐based achieve high‐capacity retention 86.4% after 800 cycles C. This approach provides scalable repair strategies commercially viable batteries.

Язык: Английский

Flexible and Scalable Magnesium Replenishment in NCM Cathode Enabled by Mobile Mg2+ Enriched MgV2O4 DOI
Qiang Qiu, Jiafeng Ruan, Wei Zhou

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 27, 2025

Abstract A small amount of Mg 2+ doping can show a significant effect on the surface protection and structural stability nickel‐rich layered oxide cathode, but traditional process involves completely changing initial raw material proportions with subsequent trial error adjustments. Herein, concept release film is proposed, in which easily permeate into various cathodes during cycling. Meanwhile, to realize this concept, MgV 2 O 4 mobile structures then fabricated self‐supporting membrane are synthesized. As protective layer for situ electrochemical process, providing reinforcement cathode as “pillar” within lattice. Thanks membrane, cycle life LiNi o.8 Co 0.1 Mn (NCM811) coupled interlayer at 1.0 C increased by 1.9 times compared bare NCM811. Furthermore, novel releasing demonstrates excellent versatility, enabling other nickel‐based achieve high‐capacity retention 86.4% after 800 cycles C. This approach provides scalable repair strategies commercially viable batteries.

Язык: Английский

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