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Search Results - fengxia+xin
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Niobium-Enhanced High-Nickel Cathodes for Longer-Lasting, Fast-Charging Li-ion Batteries
This technology introduces a one-step niobium modification that forms a LiNbO₃ surface layer and incorporates Nb⁵⁺ into nickel-rich layered cathodes (e.g., NMC 811). By simultaneously stabilizing the surface and bulk, it achieves higher first-cycle efficiency, faster charge rates, and dramatically improved cycling stability through a simple, scalable...
Published: 10/3/2025
|
Inventor(s):
Fengxia Xin
,
M. Whittingham
Keywords(s):
CleanTech
Category(s):
Campus > Binghamton University
,
Technology Classifications > Energy
Next-Generation Lithium Batteries with Niobium-Enhanced ε-VOPO₄ Cathodes
This invention introduces a niobium-modified ε-VOPO₄ cathode that achieves its full 305 mAh/g theoretical capacity with 98% coulombic efficiency. Featuring a stable 3D tunnel structure, dual voltage plateaus, and enhanced cycling durability, it enables high-performance, low-cost lithium batteries for EVs, grid storage, and advanced electronics....
Published: 10/3/2025
|
Inventor(s):
Krystal Lee
,
Carrie Siu
,
Fengxia Xin
,
M. Whittingham
Keywords(s):
Technologies
Category(s):
Campus > Binghamton University
Next-Generation Lithium-Ion Batteries Enabled by ε-VOPO₄ Cathode Innovation
This invention introduces an ε-VOPO₄-based lithium-ion cathode that achieves its full theoretical capacity of 305 mAh/g with 98% coulombic efficiency. Using a novel slurry formulation and scalable electrode production method, it delivers high-capacity, stable, and cost-effective energy storage with simplified dual-voltage operation. Background:...
Published: 10/3/2025
|
Inventor(s):
Krystal Lee
,
M. Whittingham
,
Carrie Siu
,
Fengxia Xin
Keywords(s):
Technologies
Category(s):
Campus > Binghamton University