RECHARGEABLE AND REFUELABLE METAL AIR ELECTROCHEMICAL CELL

WIPO Patent Application WO2003041211

A3

A refuelable and rechargeable metal air electrochemical cell includes a removable and rechargeable metal fuel anode, and air cathode, a third electrode, and a separator in ionic communication with at least a poriton of a major surface of the anode. A refueable and rechargeable metal air electrochemical cell includes a discharging cell and a recharging cell. The discharging cell includes an air cathode structure adapted to receive a removable and rechargeable metal fuel anode that, when inserted in the air cathode structure, produces electrical energy during the process of electrochemical conversion of the metal fuel into a metal oxide. The recharging cell includes a charging electrode structure adapted to receive the removable and rechargeable metal fuel anode generally after such anode has been discharged, or prior to initial usage of the anode for discharging, that, when inserted in the charging electrode structure, converts the metal oxide into metal fuel upon application of electrical energy. Furthermore, various structures are provided that facilitates reducing of the anode.

TSAI TSEPIN (US)
MORRIS WILLIAM (US)
TZENG GEORGE TZONG-CHYI (US)
CHEN MUGUO (US)

PCT/US2002/030585

August 12, 2004

September 26, 2002

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EVIONYX INC (US)
TSAI TSEPIN (US)
MORRIS WILLIAM (US)
TZENG GEORGE TZONG-CHYI (US)
CHEN MUGUO (US)

H01M4/86; H01M6/50; H01M10/46; H01M12/06; H01M12/08; H01M4/02; H01M4/42; H01M4/46; H01M4/76; H01M10/42; H01M10/44; H01M50/414; (IPC1-7): H01M12/08; H01M12/06; H01M6/50

WO2002073732A2	2002-09-19
WO1999013524A1	1999-03-18

EP0551204A1	1993-07-14
DE2116809A1	1971-10-21
US5441820A	1995-08-15

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