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Ta2O5 nanoparticles as an anode material for lithium ion battery
Ta 2 O 5 is one of the promising anode materials for lithium ion battery application undergoing conversion reaction in combination with an extrinsic pseudocapacitance property. We have synthesized Ta 2 O 5 nanoparticles by hydrothermal method using and without using polyethylene glycol (PEG) as co-s...
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Published in: | Journal of solid state electrochemistry 2020-04, Vol.24 (4), p.1067-1074 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Ta
2
O
5
is one of the promising anode materials for lithium ion battery application undergoing conversion reaction in combination with an extrinsic pseudocapacitance property. We have synthesized Ta
2
O
5
nanoparticles by hydrothermal method using and without using polyethylene glycol (PEG) as co-solvent. Ta
2
O
5
nanoparticles were characterized by PXRD, SEM, EDAX, BET, and TEM analysis. Electrochemical characterizations like Cyclic voltammetry, galvanostatic charge-discharge process, and rate capability were studied for Ta
2
O
5
NPs. A reversible capability of 130 mA h g
−1
is retained after 85 cycles at 0.1C rate by Ta
2
O
5
NPs synthesized using PEG, and reversible capability of 127 mA h g
−1
is retained after 40 cycles at 0.1C rate by Ta
2
O
5
NPs synthesized without using PEG. Polyethylene glycol as cosolvent induced enhanced porosity favoring the fast lithium ion transport and better reversible capacity upon cycling. |
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ISSN: | 1432-8488 1433-0768 |
DOI: | 10.1007/s10008-020-04593-3 |