Abstract:
Multifunctional properties of ternary composites play an important role in fabricating high
performance energy storage devices. This study explores the benefits of SnS:ZnS@g-C3N4
ternary composite in the development of lithium-ion batteries (LIBs). In this regard,
SnS:ZnS@g-C3N4 composite is synthesized through facile solvothermal process with
subsequent thermal treatments and investigated for LIBs. The porous nature and increased
conductivity provide an opportunity to boost the lithium storage capabilities of
SnS:ZnS@g-C3N4 composite. The anchoring of SnS:ZnS heterostructure on the graphitic
carbon nitride (g-C3N4) exploits the synergistic effects between components to overcome
the volume expansion occurs in anode material. It is found that the fabricated anode
achieves a remarkable initial discharge capacity of 1623 mAhg-1
. Moreover, the electrode
maintains a robust reversible capacity of 1045 mAhg-1
at 0.3C over 800 cycles. In contrast,
the pristine SnS:ZnS, SnS and ZnS anode shows exponential decline in specific capacity
at 0.3C. In addition, the impedance measurements reveal that SnS:ZnS@g-C3N4 exhibits
enhanced kinetics as compared to pristine SnS, ZnS, and SnS:ZnS. These findings highlight
the superior electrochemical performance of SnS:ZnS@g-C3N4 as an anode material for
lithium-ion batteries and offers a strategic pathway towards the development of advanced
anode materials that addressing key challenges in the field of lithium-ion battery
technology
