Magnesium nanoparticles as a highly stable anode for the electrochemical cell

• Published in: Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2023-10, Vol.296, p.116648, Article 116648
• Main Authors: Sosnin, I.M., Akimov, E.G., Merson, E.D., Golovanov, A.A., Merson, D.L., Kostin, V.I., Linderov, M.L.
• Format: Article
• Language: English
• Subjects: Magnesium nanoparticles; Mg-ion battery; Nanocomposites; Size-effect
• ISSN: 0921-5107; 1873-4944
• DOI: 10.1016/j.mseb.2023.116648

[Display omitted] •The technique of chemical synthesis of MgNPs is described.•A polymeric anode containing MgNPs has high stability in aqueous electrolyte.•MgNPs are stable due to protection with the film of polymeric matrix of anode. The chemical route for synthesis of magnesium nanoparticles serving as an active material for the nanocomposite anode with the conductive polymeric matrix is described. The electrochemical characteristics of the produced anode is investigated and compared with those of the counterpart anode made of micro-scale Mg particles. The energy density at 10 mA for the anode incorporating Mg nanoparticles (169.1 ± 10.8 W∙h/kg) is 6.8 times higher than that for the anode with Mg microparticles (24.8 ± 6.7 W∙h/kg). It is shown that the nanocomposite anode possesses superior stability and discharge voltage in potassium chloride aqueous solution with respect to that incorporating coarse particles. High discharge voltage is kept due to the uniform distribution of agglomerates of Mg nanoparticles in the anode. Using the results of Fourier-transform infrared spectroscopy it is suggested that the high resistance to oxidation of anode with Mg nanoparticles can be the root-cause of the enhanced electrochemical performance of the anode.