Zincophilic and hydrophobic groups of surfactant-type electrolyte additive enabled stable anode/electrolyte interface toward long-lifespan aqueous zinc ion batteries

Xiaoliang Zhang, Lei Chen*, Raphael Orenstein, Xiaojie Lu, Chunxia Wang, Meltem Yanilmaz, Mao Peng, Yongchun Dong, Yong Liu, Xiangwu Zhang

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Makalebilirkişi

1 Atıf (Scopus)

Özet

Rechargeable aqueous zinc-ion batteries, while promising in terms of safety, cost-effectiveness, and eco-friendliness, face challenges such as zinc dendrite growth and parasitic reactions at the anode/electrolyte interface. Herein, a low-cost cationic surfactant, dodecyltrimethyl ammonium chloride (DTAC) is deployed as a competitive additive in traditional ZnSO4 electrolyte to stabilize the zinc anode. Firstly, the DTAC additive disrupts the hydrogen bonding network and regulates the solvation structure. Secondly, the DTA+ cations preferentially adsorb onto the anode surface vertically, forming a dodecyl chain hydrophobic layer that suppresses the side reactions. Thirdly, the hydrophobic layer not only elevates the nucleation overpotential of Zn2+ ions but also limits their 2D diffusion at the anode surface, triggering oriented deposition of metal zinc and inhibiting dendrite growth. Leveraging these triple-regulation effects, the Zn//Zn symmetric cell with DTAC additives achieves an ultra-long cycle life of 2000 h at a current density of 1 mA cm−2 with 1 mAh cm−2. Furthermore, the Zn//MnO2 full cell with DTAC additive demonstrates promising performance, delivering an initial capacity of 149.44 mAh g−1 at 5 A g−1 and retaining 83.02 % of its capacity after 2000 cycles. These results underscore the potential of DTAC additives in advancing the industrialization of AZIBs.

Orijinal dilİngilizce
Makale numarası103500
DergiEnergy Storage Materials
Hacim70
DOI'lar
Yayın durumuYayınlandı - Haz 2024

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© 2024 Elsevier B.V.

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