Abstract: The influence of ball-milling on the discharge properties of TiFe alloy electrodes was investigated. The results show that (1) ball-milling treatment for a short time can clearly increase discharge capacity of as-cast TiFe alloy made by vacuum arc melting; (2) the capacity of ball-milling Ti-Fe solid resolution electrode , which contained a small portion of TiFe intermetallic compound , is greater than that of Ti-Fe arc-melting and ball-milling alloy electrode.

Key words: ball-milling, Ni-MH battery, discharge capacity