Battery

Details Battery Battery

H - Electricity

01

M

319/36, 319/71

H01M 4/40 (2006.01) H01M 4/02 (2006.01) H01M 4/46 (2006.01) H01M 10/36 (2006.01) H01M 10/40 (2006.01) H01M 4/04 (2006.01)

Patent

CA 1310361

ABSTRACT The invention concerns lithium batteries, including rechargeable 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 electro- chemically 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.

587450

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