A Novel Aminoalkyldisiloxane Compound as a Film-Forming Electrolyte Additive for Graphite Anode

作者：Wang, Jinglun; Zhao, Xinyue; Luo, Hao; Yang, Jianwen; Makoto, Yoshioka; Zhang, Lingzhi^*

来源：Electrochemistry, 2015, 83(7): 537-540.

DOI：10.5796/electrochemistry.83.537

• Aminoalkyldisiloxane
• Electrolyte Additive
• Graphite Anode
• Solid Electrolyte Interface

An aminoalkyldisiloxane compound, (2-(N,N-dimethylamino)ethoxy)propyl pentamethyldisiloxane (DSC3N1), was investigated as a film-forming electrolyte additive for graphite anode. The graphite/Li cells with 1 vol% DSC3N1 addition exhibited superior electrochemical performances compared with those in the base electrolyte (1 M LiPF6 in EC/DEC; v/v = 1/1). The film-forming capability of DSC3N1 on the surface of graphite was investigated by scanning electron microscope, energy dispersive spectroscope, and FT-IR analysis. A comparative hydrolysis experiment of the electrolyte with/without DSC3N1 additive using F-19-NMR technique demonstrates that DSC3N1 exhibited acid scavenging property and inhibited the hydrolysis of LiPF6.

• 出版日期2015-7
• 单位中国科学院; 桂林理工大学; 中国科学院广州能源研究所