Abstract:
Lithium-ion batteries (LIBs) have emerged as a ground-breaking technology that
has revolutionized modern portable devices and facilitated the electrification of
numerous industries, such as transportation and grid energy storage, as a result
of the pursuit of sustainable and efficient energy storage solutions. Due to their
superior qualities, such as their high energy density, prolonged cycle life, and
lightweight nature, which facilitates greater portability, lithium-ion batteries
have been embraced as a replacement for conventional energy storage systems. A
consistent effort has been made to investigate developments in the field of
lithium-ion batteries in response to the growing need for energy storage systems
that exhibit improved performance metrics, including increased energy density,
faster charging capabilities, enhanced safety, and longer lifespan. The current
issues with current LIB technology must be resolved in order to use lithium-ion
batteries (LIBs) as a viable energy storage solution with increased capacity. This
requires the creation of new electrolyte formulations, cell structures, and
production methods. Nanotubes Anatase TiO2 (NT-TiO2) have been brought forth
via electrochemical anodization of 99.9% pure titanium foils in a fluorine
containing and four different percentages (10%, 20%, 30% & 50%) of Ethylene
Glycol (EG) electrolyte. After that calcination process is done at 5500C for 2h.
Different types of structure is observed in SEM images for four different
electrolyte type samples. Among them in 10% of EG electrolyte type, the
nanotubes NT-TiO2 is observed and by using this as anode the battery is
assembled and tested the electrochemical analysis. In the first cycle, the chargedischarge
capacities are 550 mAhg-1 and 400 mAhg-1, respectively, with columbic
efficiency 75.75%. At 40th cycle, charge-discharge capacities are found to be 375
mAhg-1 and 325 mAhg-1, respectively, and at this cycle, the columbic efficiency is
80%. The superior electrochemical performances of this type of battery were
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originated from its high specific surface area and highly nanotubes structure.
These advanced features of the nanotubes provide higher contact between
electrode and electrolytes, shorten the diffusion pathways for conductive ions
and electrons and ensure fast kinetics.
