Electrochemical Properties of NbO as a Negative Electrode Material for Lithium Secondary Batteries

Kyoung Soo Park; Soon Ki Jeong; Yang Soo Kim

doi:10.4028/www.scientific.net/AMM.835.126

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 835Electrochemical Properties of NbO as a Negative...

Electrochemical Properties of NbO as a Negative Electrode Material for Lithium Secondary Batteries

Abstract:

The electrochemical properties of niobium monoxide, NbO, were investigated as a negative electrode material for lithium-ion batteries. Lithium ions were inserted into and extracted from NbO material at potentials < 1.0 V versus Li/Li⁺, involving formation of a solid electrolyte interface (SEI) on the NbO surface in the first cycle. Its reversible capacity is ~67 mAh g^–¹ with the capacity retention of ~109% after 50 cycles. The magnitude of charge transfer resistance was greatly decreased by ball-milling the pristine NbO, whereas the ball-milling had no effect on the SEI resistance.

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Applied Mechanics and Materials (Volume 835)

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126-130

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https://doi.org/10.4028/www.scientific.net/AMM.835.126

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Online since:

May 2016

Authors:

Kyoung Soo Park, Soon Ki Jeong*, Yang Soo Kim

Keywords:

Impedance, Lithium-Ion Batteries, NbO, Negative Electrode, Surface Film

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