The Role of Dopamine Additive Toward Enhancing Performance of LFP-based Li-ion Battery

Document Type : Original Article

Authors

1 Department of Applied Chemistry, Faculty of Chemistry, University of Kashan, Kashan

2 Department of Chemistry, University of Isfahan, Isfahan, Iran.

3 Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran

4 Faculty of Mechanical Engineering, Iran University of Science and Technology (IUST), Tehran, Iran

Abstract

Li-ion battery additives improve the performance, lifetime, and stability of Li-ion batteries by stabilizing electrode-electrolyte interfaces, improving electrolyte properties, facilitating efficient use of resources, and facilitating rapid lithium migration. However, fire safety, long service life, and capacity maintenance are all critical concerns for commercial Li-ion batteries. Several approaches have been explored to improve electrochemical performance, increase safety, and higher lifetime. Additives are one promising way to meet the above requirements. In this paper, we used dopamine as a cheap and safe additive (compared to organic compounds) at a concentration of 0.05 wt% to the electrolyte in a lithium-ion full-cell battery with a graphite anode LFP cathode (cylindrical battery 38120). Our results showed increased thermal stability, accelerated solid electrolyte interphase formation in graphite, improved CEI on the LFP cathode surface, and maintained 100% capacity after 200 cycles. This additive plays a constructive role in the LFP cathode to increase the performance of the Li-ion battery without causing combustion or environmental hazards.

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Applied Chemistry Today
Volume 19, Issue 72
September 2024
Pages 225-248

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