Structural Effects and Charge-Discharge Characteristics of Mg-C/Mg-Li Alloy Thin Film Materials

Autor: Chih Hsien Wang, Truan-Sheng Lui, Yi Wei Tseng, Fei Yi Hung, Ren Syuan Xiao
Rok vydání: 2011
Předmět:
Zdroj: MATERIALS TRANSACTIONS. 52:1127-1131
ISSN: 1347-5320
1345-9678
DOI: 10.2320/matertrans.mc201026
Popis: Magnesium-carbon powders and Magnesium-lithium powders were used as the anode materials for lithium ion batteries to investigate the structure and electrochemical behavior in room temperature. The composition of Mg-C powders contained 1:1 and 9:1 . The powders and the thermal evaporated films of Mg-10Li were compared with Mg-C systems. In addition, Mg-10Li thermal evaporated film was used as the experimental materials to process the annealing treatment. The results show that Mg-C powders system had the interface effect of a Cu foil to reduce the electrochemical reaction. With increasing the carbon powder content, the charge-discharge characteristics of Mg-C powders was raised. Notably, the Mg-10Li specimen had better cycling properties than that of Mg-50C ( 1:1 ). After annealing at 200 � C for 1 h, Mg-10Li alloy film not only increased the capacity, but also improved the charge-discharge cyclability. [doi:10.2320/matertrans.MC201026]
Databáze: OpenAIRE