Date:

2025-04-30

Title of Paper:

Electrochemical properties of melt-spun Al–Si–Mn alloy anodes forlithium-ion batteries

Journal:

Journal of Power Sources

Summary:

solid solution of Si and Mn in fcc -Al with very fine microstructures have been obtained in the ribbons.
The electrochemical measurements have revealed that the Al–Si–Mn alloys with some compositions can
exhibit a high Li inserting specific capacity and stable cycle performance. A specific capacity of more than
500mAhg−1 and the cycle efficiency of 90% have been achieved in melt-spun Al55Si40Mn5 and Al53Si40Mn7
alloys after 10 cycles. An ordered phase,  (Al3Li), seems to be formed in the alloys after Li inserting,
whereas no other compounds with Li have been detected. It is evident that the supersaturated solid
solution plays the main role in improving the specific capacity and cycle performance. Refinement of
grains could facilitate the diffusion of Li atoms. The coexistence of multi-phases has limited the alloy
volume expansion during Li inserting. As a result, a high-specific capacity and a stable cycle performance
have been achieved.
Keywords:
Al–Si–Mn alloy
Melt spinning
Microstructure
Lithium-ion battery
Electrochemical property

Co-author:

ZB Sun, XD Wang, XP Li, Mingshu Zhao*, et.al.

Volume:

182 (2008)

Page Number:

353–358

Translation or Not:

No

Date of Publication:

2008-11-06