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A study of a novel Na ion battery and its anodic degradation using sodium rich prussian blue cathode coupled with different titanium based oxide anodes

Title
A study of a novel Na ion battery and its anodic degradation using sodium rich prussian blue cathode coupled with different titanium based oxide anodes
Authors
Mukherjee, S[Mukherjee, Santanu]Bates, A[Bates, Alex]Schuppert, N[Schuppert, Nicholas]Son, B[Son, Byungrak]Kim, JG[Kim, Joo Gon]Choi, JS[Choi, Jae Sung]Choi, MJ[Choi, Moon Jong]Lee, DH[Lee, Dong-Ha]Kwon, O[Kwon, Osung]Jasinski, J[Jasinski, Jacek]Park, S[Park, Sam]
DGIST Authors
Son, B[Son, Byungrak]; Kim, JG[Kim, Joo Gon]; Choi, JS[Choi, Jae Sung]; Choi, MJ[Choi, Moon Jong]; Lee, DH[Lee, Dong-Ha]
Issue Date
2015-07-15
Citation
Journal of Power Sources, 286, 276-289
Type
Article
Article Type
Article
Keywords
AnodesAnodic OxidationCathodesElectric BatteriesElectrochemical DegradationElectrodesInfrared ImagingIntercalationLayered StructureLayered StructuresNa-Ion BatteriesOpen Circuit VoltagePhotodegradationPrussian BlueSodium BatteriesSodium BatterySpecific CapacitiesThermal AnalysisThermoanalysisTitanium-BasedTitanium DioxideTitanium OxidesTransition-Metal OxidesTransition-Metals CompoundsTransition-Metals OxidesTransition-MetalssX Ray Diffraction
ISSN
0378-7753
Abstract
This paper analyzes the behavior and studies the thermal degradation phenomena of a novel sodium rich Prussian blue cathode with a sodium deficient and sodium rich anode system viz. amorphous TiO2, crystalline (pristine), and heat treated TiO2 and Na2Ti3O7, respectively. The primary aim of the research was to demonstrate the superiority of the Na2Ti3O7 anode, which in principle can be considered "pre-stressed" by Na atoms when converted from TiO2 to Na2Ti3O7. Another motive of the research was to analyze exhaustively the layered anode structure and its degradation phenomena using the unique technique of thermal imaging to correlate it with post cycled X-ray diffraction (XRD) and an AC impedance study. The Na2Ti3O7 system was seen as more stable than the other tested TiO2 based anodes and produced an open circuit voltage (OCV) of 3.59 V and a maximum specific capacity of 92.18 mAh g-1 when the electrolyte used was dissolved in an organic solvent. Under the same conditions, the TiO2 sample showed an OCV of 3.41 V and a maximum specific capacity of 71.93 mAh g-1. Thermal imaging studies show that the maximum electrochemical degradation occurs at the anode of the samples with the TiO2 sample being more susceptible to corrosion. © 2015 Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/20.500.11750/2594
DOI
10.1016/j.jpowsour.2015.03.167
Publisher
ELSEVIER SCIENCE BV
Related Researcher
Files:
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Collection:
School of Undergraduate Studies1. Journal Articles


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