Monitoring LiNixCoyMn(1–x–y)O2 Degradation in Contact with Li via In Situ Transmission Electron Microscopy DOI
Min Liu, Qiang Li, Kaifeng Chen

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

High-voltage LiNixCoyMn(1–x–y)O2 (NCM) is one of the most promising cathode materials for high-energy-density lithium metal batteries. Significant efforts have been made on inhibiting surface transition NCM from ordered layered phase to low-ionic-conductivity rock salt phase, which facilitates maintaining a low interfacial impedance superior cycle performance. However, it often overlooked that also has electronic conductivity, may alleviate notorious growth dendrite-induced short-circuit. In this article, we further demonstrate effective in resisting pulverization contact with Li via situ transmission electron microscopy. The experiences rapid overlithiation Li, triggers lattice expansion and pulverization. overlithiation-induced degradation retarded Li-deficient disorder surface, attributed blocked Li+ primary path. Our work revisits unwanted layer cathodes, provides guideline interface design long-cycling high-safety

Language: Английский

An epitaxial surface heterostructure anchoring approach for high-performance Ni-rich layered cathodes DOI

Weili Sun,

Qingqing Zhang, Xiao‐Guang Sun

et al.

Journal of Energy Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

Citations

0
Enhancing Structural Stability and Electrochemical Performance of Ultra-high Ni-rich Co-free Cathode via MgHPO4 Dual-functional Modification DOI

Huahui Lin,

Yu Shen, Wei Li

et al.

Chemical Research in Chinese Universities, Journal Year: 2025, Volume and Issue: unknown

Published: March 7, 2025

Language: Английский

Citations

0
Mitigating of Performance Degradation of Ultrahigh-Nickel Cathodes LiNi0.9Co0.05Mn0.05O2 at Elevated Voltage and Temperature Using In Situ Engineered La4(Al1-xNix)LiO8 Coating and Al3+ Doping DOI
Jinxiu Liu,

Liying Huang,

Xueling Hu

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 179687 - 179687

Published: March 1, 2025

Language: Английский

Citations

0
From Li battery leachate to cathodes: Unveiling the role of boron impurity in Ni-rich LiNixCoyMnzO2 resynthesis by simulated leachate DOI

Hyeoncheol Joo,

Che Ok Jeon, Jungwook Choi

et al.

Chemosphere, Journal Year: 2025, Volume and Issue: 380, P. 144454 - 144454

Published: May 5, 2025

Language: Английский

Citations

0
Ta/Ti Codoped Concentration Gradient High-Ni Cathodes for Long-Life Li-Ion Batteries DOI
Hui Xiao,

Lele Cai,

Qiang Han

et al.

Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(44), P. 18989 - 18996

Published: Oct. 28, 2024

Full concentration gradient nickel-rich ternary materials (GNCM) demonstrate cost-effectiveness and higher discharge capacity as lithium-ion battery (LIB) cathodes. However, unsatisfactory rate performances of GNCM are recognized a limitation caused by elimination surface Mn enrichment during the calcination process. To address this issue, Ta/Ti codoping approach is developed, showing that Ta5+ can upgrade primary particle to mitigate element diffusion at grain boundaries, meanwhile, Ti4+ stabilize Ni–O weaken Ni2+ migration. Such impacts on bring in significant advantages terms structure performance prevent irreversible phase transitions from layered rock-salt accelerate kinetics Li+ electrons with increased electric conductivity. Consequently, codoped (labeled GNCM-TaTi) delivered high reversible 210.9 mAh/g an initial 0.1C maintained 106.8 even 10C. The retentions remain 98.2 94.7% after 100 cycles 0.5 3C, respectively. Further evaluations GNCM-TaTi pouch cell show retention 90.3% 3C 500 cycles. presented validates effective route strengthen LIB high-Ni NCM full structure.

Language: Английский

Citations

0
Monitoring LiNixCoyMn(1–x–y)O2 Degradation in Contact with Li via In Situ Transmission Electron Microscopy DOI
Min Liu, Qiang Li, Kaifeng Chen

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

High-voltage LiNixCoyMn(1–x–y)O2 (NCM) is one of the most promising cathode materials for high-energy-density lithium metal batteries. Significant efforts have been made on inhibiting surface transition NCM from ordered layered phase to low-ionic-conductivity rock salt phase, which facilitates maintaining a low interfacial impedance superior cycle performance. However, it often overlooked that also has electronic conductivity, may alleviate notorious growth dendrite-induced short-circuit. In this article, we further demonstrate effective in resisting pulverization contact with Li via situ transmission electron microscopy. The experiences rapid overlithiation Li, triggers lattice expansion and pulverization. overlithiation-induced degradation retarded Li-deficient disorder surface, attributed blocked Li+ primary path. Our work revisits unwanted layer cathodes, provides guideline interface design long-cycling high-safety

Language: Английский

Citations

0