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HỘI THẢO QUỐC TẾ ATiGB LẦN THỨ CHÍN - The 9 ATiGB 2024 173

−
4 Zn 2+ + SO ²− + 6 OH + 3 H O
4 2
(1)
→ Zn 4SO OH 3 H 0
( ) •
4
6 2
4. CONCLUSIONS
Summarily, the resistance to dendrite formation in
zinc ion pouch cells was evaluated over 50 hours at a
2
current density of 1.0 mA/cm using electrolytes of
2M ZnSO4 with varying percentages of DMSO (0%,
10%, 20%, 30%, 40%, and 50%). The zinc metal
electrode surfaces were examined after 50 hours of
charge - discharge cycling in a symmetric pouch cell
configuration. The formation of complex layers on the
Fig. 3. XRD results of zinc electrode surface for zinc electrode was analyzed using XRD
electrolyte systems with 0% DMSO and 20% DMSO measurements. Therefore, the electrolyte containing
after 50 hours of stripping/plating at a current density 20% DMSO effectively inhibited dendritic growth,
of 1.0 mA/cm 2 facilitating smoother zinc ion migration paths and
After the symmetric Zn//Zn batteries were tested thereby enhancing battery performance.
for their electrostatic charge-discharge performance, ACKNOWLEDGMENT
X-ray diffraction (XRD) was used to determine the
chemical composition and assess the crystal structure This research is funded by Vietnam National
of the deposited layer on the zinc electrode surface. Foundation for Science and Technology Development
Fig. 3 shows the XRD results of the Zn electrode in (NAFOSTED) under grant number 103.02-2021.135.
the symmetric Zn//Zn pouch cell. The Zn electrode REFERENCES
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ISBN: 978-604-80-9779-0