Electrochemical behaviour of LiSn, LiCd and LiSnCd alloys in propylene carbonate solution

✍ Scribed by Eugeny S. Nimon; Alexei V. Churikov

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 988 KB
• Volume: 41
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(95)00394-0

✦ Synopsis

Transport properties and composition of passivating films, forming on the surface of Li-Sn, Li-Cd and Li-Sri-Cd alloy electrodes in propylene carbonate-based solutions, have been investigated using electrochemical and secondary-ion mass spectrometry techniques. The profile of polarization curves obtained by using the single-pulse current technique shows that the transport rate of mobile Li' ions through a passivating film is limited by the space charge of ions injected in the latter from the electrode or from the solution for anodic and cathodic currents, respectively. The values of mobility and concentration for mobile Li+ ions in passivating films have been determined. It has been stated that introduction of MoCl, additions in solution leads to a modification of the passivating film composition and to an improvement of its transport properties on account of an increase in the Li+ ion mobility.