Al-Li alloys prepared by molten salt electrolysis method
It is important for development of a simply and cost effective process for production of Li-AI alloys used as lithium-air battery anode material.In present work,Li-Al alloys used as lithium-air battery anode material were prepared by Molten salt electrolysis method. In the system of molten LiCl-KCl-LiF with molar compositions of 55%-45%-5%,And Li-Al alloys were formed. The actual decomposi tion voltage in the process of electrolysis was measured by continuous pulse-oscillograph. And the effects of influencing factors,such as temperature,electrolysis time,cell voltage and current density,etc.were all studied. The characteristics of Li-Al alloys were analyzed by XRD,Atomic Absorption Spectrometry and SEM.It was found that the actual decomposition voltage decreased with increasing temper ature. The factors mentioned above influenced the current efficiency and lithium content in the alloys. As the electrolysis time prolong, the lithium content in the alloys increased and reached a stable value.It was found that the lithium content of 12 wt.% and current effi ciency reached 78%.in Li-Al alloys can be obtained by Molten salt electrolysis method,and the phase compositions of the Li-Al alloys were alpha- and beta-Aluminum Lithium from X-ray diffraction analysis.It showed the potential of the process for production of Li-Al al loys used as lithium battery anode material.
Li-Al alloys molten salt electrolysis method system of molten LiCl-KCl-LiF
ZHAI Xiujing FU Yan LOU Zhanfeng ZHANG Mingjie
School of Materials and Metallurgy,Northeastern University,Shenyang 110004,China
国际会议
The 10th China-Russia System on Advanced Materials and Technologies(第十届中俄新材料新工艺研讨会)
浙江嘉兴
英文
214-217
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）