| 摘要 |
The invention concerns rechargeable lithium batteries and anodes for such batteries and method of making the anodes, and comprises the features: a) the anode may be of a solution type alloy of commercial purity Al with at least one of Mg, Ga, Ca, Si, Sn, Li, Ge and Zn; b) alternatively, the anode may be of a wrought eutetic aluminium alloy containing 3 - 25 volume % of dispersed intermetallic particles of average diameter 0.1 to 2 microns; c) the anode may have been electrochemically alloyed with Li and pretreated by being subjected to more than one charge-discharge cycle to improve the initial charge-discharge efficiency of the battery. When used as anodes in rechargeable lithium batteries, the specified alloys show high charge-discharge efficiency. Alloys based on commercial purity Al are easier to cut and shape than are alloys based on super-purity Al. |
