Electron Acceptor-Driven Solid Electrolyte Interphases with Elevated LiF Content for 4.7 V Lithium Metal Batteries DOI Creative Commons
Yongbiao Mu,

Zifan Liao,

Youqi Chu

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: Feb. 24, 2025

Abstract High-voltage lithium (Li) metal batteries (LMBs) face substantial challenges, including Li dendrite growth and instability in high-voltage cathodes such as LiNi 0.8 Mn 0.1 Co O 2 (NCM811), which impede their practical applications long-term stability. To address these tris(pentafluorophenyl)borane additive an electron acceptor is introduced into ethyl methyl carbonate/fluoroethylene carbonate-based electrolyte. This approach effectively engineers robust dual interfaces on the anode NCM811 cathode, thereby mitigating dendritic of enhancing stability cathode. additive-driven strategy enables LMBs to operate at ultra-high voltages up 4.7 V. Consequently, Li||Cu cells achieve a coulombic efficiency 98.96%, Li||Li symmetric extend cycle life impressive 4000 h. Li||NCM811 full maintain high capacity retention 87.8% after 100 cycles Additionally, Li||LNMO exhibit exceptional rate capability, delivering 132.2 mAh g −1 10 C retaining 95.0% 250 1 5 As result, NCM811||graphite pouch 93.4% 1100 C. These findings underscore efficacy engineering addressing formation cathode under voltage, paving road for durable, high-performance LMBs.

Language: Английский

Constructing thermo-responsive polysiloxane shields via lithium initiation to inhibit thermal runaway of lithium metal batteries DOI

Yuanke Wu,

Ziqi Zeng, Han Zhang

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 70, P. 103499 - 103499

Published: May 18, 2024

Language: Английский

Citations

11
Competitive Roles of Conductivity and Lithiophility in Composite Lithium Metal Anode DOI Creative Commons
Wenbo Tang, Nailu Shen,

Xiaosong Xiong

et al.

Energy Material Advances, Journal Year: 2024, Volume and Issue: 5

Published: Jan. 1, 2024

For the three-dimensional conductive host, uneven lithium deposition and dependence on pore structure lithiophility are a great challenge for metal anodes. Herein, we employed facial chemical etching techniques brass foil to fabricate copper hosts with diverse structures lithiophilities, thus intending understand depositing mechanisms in porous hosts. The host more pronounced exhibits lower polarization voltage induced by its large specific surface area, which reduces local current density provides deal of pathway ion diffusion. Meanwhile, it high nucleation overpotential short lifespan due reduced number favorable sites caused lithiophilic zinc marked increase routes between sites. Therefore, appropriate needs consideration efficient balance overpotential, voltage, Coulombic efficiency. This insight underscores pivotal role well-suited hosts, providing profound guidance design advanced anode.

Language: Английский

Citations

9
Revealing the quasi-solid-state electrolyte role on the thermal runaway behavior of lithium metal battery DOI
Shiyao Chen, Qingkui Peng, Zesen Wei

et al.

Energy storage materials, Journal Year: 2024, Volume and Issue: 70, P. 103481 - 103481

Published: May 17, 2024

Language: Английский

Citations

9
Catalysis-Induced Highly-Stable Interface on Porous Silicon for High-Rate Lithium-Ion Batteries DOI Creative Commons

Zhuobin Han,

Phornphimon Maitarad, Nuttapon Yodsin

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: March 26, 2025

Silicon stands as a key anode material in lithium-ion battery ascribing to its high energy density. Nevertheless, the poor rate performance and limited cycling life remain unresolved through conventional approaches that involve carbon composites or nanostructures, primarily due un-controllable effects arising from substantial formation of solid electrolyte interphase (SEI) during cycling. Here, an ultra-thin homogeneous Ti doping alumina oxide catalytic interface is meticulously applied on porous Si synergistic etching hydrolysis process. This defect-rich promotes selective adsorption fluoroethylene carbonate, leading reaction can be aptly described "molecular concentration-in situ conversion". The resultant inorganic-rich SEI layer electrochemical stable favors ion-transport, particularly at high-rate temperature. robustly shielded Si, with large surface area, achieves initial Coulombic efficiency 84.7% delivers exceptional 25 A g-1 (692 mAh g-1) 99.7% over 1000 cycles. robust constructed precious promises significant advantages for fast development silicon-based fast-charging batteries.

Language: Английский

Citations

2
Electron Acceptor-Driven Solid Electrolyte Interphases with Elevated LiF Content for 4.7 V Lithium Metal Batteries DOI Creative Commons
Yongbiao Mu,

Zifan Liao,

Youqi Chu

et al.

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: Feb. 24, 2025

Abstract High-voltage lithium (Li) metal batteries (LMBs) face substantial challenges, including Li dendrite growth and instability in high-voltage cathodes such as LiNi 0.8 Mn 0.1 Co O 2 (NCM811), which impede their practical applications long-term stability. To address these tris(pentafluorophenyl)borane additive an electron acceptor is introduced into ethyl methyl carbonate/fluoroethylene carbonate-based electrolyte. This approach effectively engineers robust dual interfaces on the anode NCM811 cathode, thereby mitigating dendritic of enhancing stability cathode. additive-driven strategy enables LMBs to operate at ultra-high voltages up 4.7 V. Consequently, Li||Cu cells achieve a coulombic efficiency 98.96%, Li||Li symmetric extend cycle life impressive 4000 h. Li||NCM811 full maintain high capacity retention 87.8% after 100 cycles Additionally, Li||LNMO exhibit exceptional rate capability, delivering 132.2 mAh g −1 10 C retaining 95.0% 250 1 5 As result, NCM811||graphite pouch 93.4% 1100 C. These findings underscore efficacy engineering addressing formation cathode under voltage, paving road for durable, high-performance LMBs.

Language: Английский

Citations

1