In Situ Forming a Black Phosphorene Mixed Ion/Electron Conductor Layer by External Pressure without Binder for Anode-Free Li Metal Batteries DOI

Jiankun Lin,

Chengwei Ma, Chunli Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 21, 2025

Anode-free Li metal batteries are an excellent choice for developing the next generation of high-energy-density battery systems. However, due to poor chemical compatibility between current collector and electrolyte interface, electrodeposition on collectors faces a huge challenge rapid capacity degradation in anode-free batteries. Herein, strategy modifying ultrathin black phosphorene (BP) mixed ion/electron conductor interface layer surface by relying pressure is proposed. The BP hybrid formed situ solely compared with traditional modification technology, there no powder shedding phenomenon absence binder. Moreover, Cu-NCM811 cell matched high mass loading cathodes exhibits retention average Coulombic efficiency 99.1%. relevant result has established foundation development long cycling

Language: Английский

Hybrid Solvent Coupled with Dual-Salt Electrolyte Enables High-Performance Lithium–Metal Batteries DOI

Ruiqi Chai,

Jipeng Xu,

Shuhao Yan

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 6, 2025

Lithium-metal batteries (LMBs) are widely recognized as the next-generation energy storage technology due to their high density, while commercialization is hindered by low Coulombic efficiency and uncontrolled Li dendrite growth. To address these challenges, an anion-rich solvation structure achieved a hybrid solvent coupled with dual-salt electrolyte. The strongly coordinating DTA binds tightly Li+ in first sheath, weakly FEC occupies second shell. Moreover, FEC, weak ability, allows TFSI- DFOB- enter primary sheath. anion-derived SEIs exhibit enhanced mechanical strength ionic conductivity, leading accelerated transport kinetics inhibited As result, Li||Cu half-cell employing electrolyte delivers average Aurbach of 99.0%. Li||LiNi0.8Co0.1Mn0.1O2 battery exhibits robust capacity retention 90.8% over 300 cycles, demonstrating viability practical LMBs.

Language: Английский

Citations

0
In Situ Forming a Black Phosphorene Mixed Ion/Electron Conductor Layer by External Pressure without Binder for Anode-Free Li Metal Batteries DOI

Jiankun Lin,

Chengwei Ma, Chunli Li

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 21, 2025

Anode-free Li metal batteries are an excellent choice for developing the next generation of high-energy-density battery systems. However, due to poor chemical compatibility between current collector and electrolyte interface, electrodeposition on collectors faces a huge challenge rapid capacity degradation in anode-free batteries. Herein, strategy modifying ultrathin black phosphorene (BP) mixed ion/electron conductor interface layer surface by relying pressure is proposed. The BP hybrid formed situ solely compared with traditional modification technology, there no powder shedding phenomenon absence binder. Moreover, Cu-NCM811 cell matched high mass loading cathodes exhibits retention average Coulombic efficiency 99.1%. relevant result has established foundation development long cycling

Language: Английский

Citations

0