Abstract
The Sb
2
S
3
bulk material was used for next-generation anode for lithium-ion batteries. Alternative current (AC) conductivity, dielectric properties and electric modulus of Sb
2
S
3
have been investigated. The measurements were carried out in the frequency range from 40 Hz to 5 MHz and temperature range from 293 K to 453 K. The direct current (DC) conductivity,
σ
DC
, shows an activated behavior and the calculated activation energy is 0.50 eV. The AC conductivity,
σ
AC
, was found to increase with the increase of temperature and frequency. The conduction mechanism of
σ
AC
was controlled by the correlated barrier hopping model. The behavior of the dielectric constant,
ε
′, and dielectric loss index,
ε
′′, reveal that the polarization process of Sb
2
S
3
is dipolar in nature. The behavior of both
ε
′ and
ε
′′ reveals that bulk Sb
2
S
3
has no ferroelectric or piezoelectric phase transition. The dielectric modulus,
M
, gives a simple method for evaluating the activation energy of the dielectric relaxation. The calculated activation energy from
M
is 0.045 eV.