3 research outputs found
Constructing Magnetic Ion Accelerator at Na<sub>2/3</sub>Ni<sub>1/3</sub>Mn<sub>2/3</sub>O<sub>2</sub> Surface for Sodium Ion Batteries
Surface ion transportation and structural stability are
generally
the key factors determining the electrochemical performance of a specific
electrode for secondary batteries. Therefore, building an effective
and stable interface layer becomes the bottleneck for long-life and
high-performance batteries. This study is the first to design and
construct a magnetic Fe3O4 interfacial layer
on the Na2/3Ni1/3Mn2/3O2 surface. Preliminary analysis and calculations indicated that the
the Fe3O4 magnetic layer played a role as a
surface ion accelerator, which effectively ameliorated the interfacial
kinetic behavior through dispersing the aggregated ions at a tangential
orientation under the Lorentz force. Electrochemical tests substantiated
that the decorated cathode delivered a high capacity of 87 mA h g–1 and a capacity retention of 76% after 500 cycles
under a rate of 5 C. This finding in the surface magnetic ion accelerator
provides insight into efficient electrode design and applications
of surface physical fields to enhance ion transportation and structural
stability for advanced secondary batteries
Constructing Magnetic Ion Accelerator at Na<sub>2/3</sub>Ni<sub>1/3</sub>Mn<sub>2/3</sub>O<sub>2</sub> Surface for Sodium Ion Batteries
Surface ion transportation and structural stability are
generally
the key factors determining the electrochemical performance of a specific
electrode for secondary batteries. Therefore, building an effective
and stable interface layer becomes the bottleneck for long-life and
high-performance batteries. This study is the first to design and
construct a magnetic Fe3O4 interfacial layer
on the Na2/3Ni1/3Mn2/3O2 surface. Preliminary analysis and calculations indicated that the
the Fe3O4 magnetic layer played a role as a
surface ion accelerator, which effectively ameliorated the interfacial
kinetic behavior through dispersing the aggregated ions at a tangential
orientation under the Lorentz force. Electrochemical tests substantiated
that the decorated cathode delivered a high capacity of 87 mA h g–1 and a capacity retention of 76% after 500 cycles
under a rate of 5 C. This finding in the surface magnetic ion accelerator
provides insight into efficient electrode design and applications
of surface physical fields to enhance ion transportation and structural
stability for advanced secondary batteries
Constructing Magnetic Ion Accelerator at Na<sub>2/3</sub>Ni<sub>1/3</sub>Mn<sub>2/3</sub>O<sub>2</sub> Surface for Sodium Ion Batteries
Surface ion transportation and structural stability are
generally
the key factors determining the electrochemical performance of a specific
electrode for secondary batteries. Therefore, building an effective
and stable interface layer becomes the bottleneck for long-life and
high-performance batteries. This study is the first to design and
construct a magnetic Fe3O4 interfacial layer
on the Na2/3Ni1/3Mn2/3O2 surface. Preliminary analysis and calculations indicated that the
the Fe3O4 magnetic layer played a role as a
surface ion accelerator, which effectively ameliorated the interfacial
kinetic behavior through dispersing the aggregated ions at a tangential
orientation under the Lorentz force. Electrochemical tests substantiated
that the decorated cathode delivered a high capacity of 87 mA h g–1 and a capacity retention of 76% after 500 cycles
under a rate of 5 C. This finding in the surface magnetic ion accelerator
provides insight into efficient electrode design and applications
of surface physical fields to enhance ion transportation and structural
stability for advanced secondary batteries