154] ELECTROCHEMICAL CELL
 Inventor: Leroy S. Rowley, San Jose, Calif.
 Assignee. Lockheed Aircraft Corporation, Burbank, Calif.
 Filed: Apr. 14, 1971
 Appl. No.: 133,833
 U.S. CI... 136/100 R
 Int. CI HOlm 13/00
 Field of Search. 136/100 R, 100 M, 86 A, 194,
136/83, 83 T
 References Cited
UNITED STATES PATENTS
267,319 11/1882 Berstein 136/100 R
3,554,810 1/1971 Zaromb 136/86 A
2,921,110 1/1960 Crowley et al..., 136/100 R
FOREIGN PATENTS OR APPLICATIONS
524,077 4/1956 Canada 136/154
Primary Examiner—Allen B. Curtis
Attorney, Agent, or Firm—Paul F. Morgan; George C.
The effective generation of electrical power is provided utilizing materials which are both chemically and electrochemically highly reactive with one another, in particular, alkali metals and water. The transport of water molecules to the alkali metal anode surface is restricted in the electrolyte. In a simple single stage cell an alkali metal hydroxide aqueous solution electrolyte is provided between an alkali metal anode and a non-reactive metal cathode at a sufficiently high concentration to prevent melting of the anode or thermal runaway. No other chemical or mechanical intermediary is required. Electrical power is obtained by continuously adding to the electrolyte during operation a controlled restricted quantity of water proportional to the electrical current withdrawn from the cell. No external heating is required and the cell operates near room temperature. The control of the rate of water addition may be used to control the power output of the cell.
15 Claims, 8 Drawing Figures