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PENGARUH KONSENTRASI ELEKTROLIT NaNO₃ DENGAN PELARUT (DMSO DAN H₂O) TERHADAP KINERJA BATERAI ION NATRIUM BERBASIS ANODA SnO₂/C DAN KATODA NaMnPO4

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This research is motivated by the use of sodium ion batteries as an alternative to lithium ion batteries, as they share similar properties and characteristics but are cheaper, more environmentally friendly, and made from more abundant raw materials. In general, the components of a battery cell consist of electrodes, electrolyte, and separator. The electrodes include a positive electrode (anode) and a negative electrode (cathode). This study focuses on the use of a SnO₂ based anode and a NaMnPO₄ based cathode, as well as the effect of solvent variations Dimethyl Sulfoxide (DMSO) and H₂O and electrolyte concentrations of 4 M and 1 M on battery performance. The anode was prepared from a mixture of SnO₂, binchotan carbon, and polyaniline (PANi), while the cathode was synthesized from Na₂CO₃, MnCl₂·4H₂O, and NH₄H₂PO₄ using the sol-gel method. Electrode characterization was conducted using Scanning Electron Microscopy (SEM) to observe morphology and X-Ray Diffraction (XRD) to determine the crystal structure. Battery performance was evaluated using Electrochemical Impedance Spectroscopy (EIS), Cyclic Voltammetry (CV), Open Circuit Voltage (OCV), and Closed Circuit Voltage (CCV). SEM analysis showed that SnO₂ has a porous surface, while NaMnPO₄ exhibits a rough, homogeneous structure with less visible surface porosity. XRD characterization of the SnO₂ anode revealed 12 diffraction peaks at 2θ angles of 26.7°, 34.08°, 38.02°, 51.95°, 54.95°, 58.08°, 62.13°, 64.94°, 66.14°, 71.43°, 78.93°, and 83.88°, corresponding to JCPDS 41-1445, with a resulting crystal size of 38.5 nm. XRD characterization of the NaMnPO₄ sample showed 8 diffraction peaks at 2θ positions of 16.3°, 22.4°, 31.18°, 31.79°, 34.31°, 45.51°, 66.17°, and 75.32°, corresponding to JCPDS 84-0852, with a resulting crystal size of 60.26 nm. EIS testing indicated that the battery with 1 M NaNO₃ electrolyte in DMSO had the lowest internal resistance, with an Rp value of 216 kΩ. CV results showed the highest redox stability was achieved with 1 M NaNO₃ electrolyte in H₂O, as evidenced by a ΔV of -0.4151 V, marked by closely spaced anodic and cathodic peaks. OCV testing showed that the electrolyte with 4 M NaNO₃ in H₂O demonstrated good performance due to a minimal and consistent voltage drop of 0.22 V. Meanwhile, CCV testing revealed that under varying loads, the highest voltage and power density were achieved by the electrolyte with 4 M NaNO₃ in H₂O. Keywords : Sodium ion battery, electrolyte, electrode.

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Detail Information

Series Title

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Call Number

T1860782025

Publisher

Indralaya : Prodi Ilmu Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Sriwijaya., 2025

Collation

xix, 86 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

-

Classification

540.07

Content Type

Text

Media Type

unmediated

Carrier Type

other (computer)

Edition

-

Subject(s)

Prodi Ilmu Kimia
Kinerja Baterai Ion Natrium

Specific Detail Info

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Statement of Responsibility

MI

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