Surface Engineering via Rare Earth Oxide Composite Coating to Enhance the High-Voltage Stability of the LiCoO2 Cathode DOI

Yuwei Zhao,

Wei Zeng,

Shengqi Su

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(44), С. 60448 - 60457

Опубликована: Окт. 28, 2024

The commercial application of high-voltage LiCoO2 (LCO) faces significant challenges due to rapid capacity decay, primarily attributed an unstable interface and structure at deeply delithiated states. Herein, a unique rare earth oxide composite coating comprising La2O3, Y2O3, LaYO3 has been prepared stabilize LCO high voltage. synergistic effect between these oxides significantly reinforces the protective capabilities coating, effectively enhancing interfacial/structural stability LCO. When tested 4.6 V, coated exhibits excellent retention 94.4% after 300 cycles 1 C. Even ultralong charge/discharge test 700 2 C, retains 85.2% its initial specific capacity, which outperforms uncoated (6.3%). Moreover, shows enhanced cycling performance temperature 45 °C, owing outstanding thermal La–Y–O composite. Additionally, superior 4.7 compared LCO, demonstrated promising potential in improving electrochemical higher cutoff voltages. These findings highlight efficacious strategy enhance using oxides.

Язык: Английский

Stabilizing the cathode-electrolyte interphase for superior Li-ion batteries DOI Creative Commons
Yunze Zhang, Jian Wang

Green Chemical Engineering, Год журнала: 2025, Номер unknown

Опубликована: Июнь 1, 2025

Язык: Английский

Процитировано

0
Exploring the Surface-stabilized Ni-rich NCM Cathode Material by Embedding Yttrium and Borate-integrated Interfaces for Lithium-ion Batteries DOI
Ji Seong Heo,

Taeeun Yim

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 181419 - 181419

Опубликована: Июнь 1, 2025

Язык: Английский

Процитировано

0
Lattice-Engineering modulated band structure facilitates enhanced stability of high-voltage LiCoO2 at 4.6 V DOI
Zhi Zhang, Guangxin Wu, Zhouliang Tan

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер 502, С. 158053 - 158053

Опубликована: Ноя. 29, 2024

Язык: Английский

Процитировано

3
Surface Engineering via Rare Earth Oxide Composite Coating to Enhance the High-Voltage Stability of the LiCoO2 Cathode DOI

Yuwei Zhao,

Wei Zeng,

Shengqi Su

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(44), С. 60448 - 60457

Опубликована: Окт. 28, 2024

The commercial application of high-voltage LiCoO2 (LCO) faces significant challenges due to rapid capacity decay, primarily attributed an unstable interface and structure at deeply delithiated states. Herein, a unique rare earth oxide composite coating comprising La2O3, Y2O3, LaYO3 has been prepared stabilize LCO high voltage. synergistic effect between these oxides significantly reinforces the protective capabilities coating, effectively enhancing interfacial/structural stability LCO. When tested 4.6 V, coated exhibits excellent retention 94.4% after 300 cycles 1 C. Even ultralong charge/discharge test 700 2 C, retains 85.2% its initial specific capacity, which outperforms uncoated (6.3%). Moreover, shows enhanced cycling performance temperature 45 °C, owing outstanding thermal La–Y–O composite. Additionally, superior 4.7 compared LCO, demonstrated promising potential in improving electrochemical higher cutoff voltages. These findings highlight efficacious strategy enhance using oxides.

Язык: Английский

Процитировано

1