Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Sodium vanadium oxide
T2 - a new material for high-performance symmetric sodium-ion batteries
AU - Hartung, Steffen
AU - Bucher, Nicolas
AU - Nair, Vivek Sahadevan
AU - Ling, Cheah Yan
AU - Wang, Yuxi
AU - Hoster, Harry E.
AU - Srinivasan, Madhavi
PY - 2014/7/21
Y1 - 2014/7/21
N2 - Room-temperature sodium-ion batteries have the potential to become the technology of choice for large-scale electrochemical energy storage because of the high sodium abundance and low costs. However, not many materials meet the performance requirements for practical applications. Here, we report a novel sodium-ion battery electrode material, Na2.55V6O16 center dot 0.6H(2)O, that shows significant capacities and stabilities at high current rates up to 800 mA g(-1). X-ray photoelectron spectroscopy measurements are carried out to better understand the underlying reactions. Moreover, due to the different oxidation states of vanadium, this material can also be employed in a symmetric full cell, which would decrease production costs even further. For these full cells, capacity and stability tests are conducted using various cathode: anode mass ratios.
AB - Room-temperature sodium-ion batteries have the potential to become the technology of choice for large-scale electrochemical energy storage because of the high sodium abundance and low costs. However, not many materials meet the performance requirements for practical applications. Here, we report a novel sodium-ion battery electrode material, Na2.55V6O16 center dot 0.6H(2)O, that shows significant capacities and stabilities at high current rates up to 800 mA g(-1). X-ray photoelectron spectroscopy measurements are carried out to better understand the underlying reactions. Moreover, due to the different oxidation states of vanadium, this material can also be employed in a symmetric full cell, which would decrease production costs even further. For these full cells, capacity and stability tests are conducted using various cathode: anode mass ratios.
KW - cathode materials
KW - energy storage
KW - sodium-ion batteries
KW - sodium vanadium oxide
KW - symmetric batteries
KW - RECHARGEABLE NA BATTERIES
KW - SYNTHESIZED V2O5 CATHODES
KW - CYCLING STABILITY
KW - ENERGY-STORAGE
KW - LITHIUM
KW - INSERTION
KW - ELECTROLYTE
KW - NANOWIRES
KW - CELLS
KW - INSERTION/DEINSERTION
U2 - 10.1002/cphc.201402020
DO - 10.1002/cphc.201402020
M3 - Journal article
C2 - 25044526
VL - 15
SP - 2121
EP - 2128
JO - ChemPhysChem
JF - ChemPhysChem
SN - 1439-4235
IS - 10
ER -