Processing

Please wait...

Settings

Settings

Goto Application

1. WO2002025760 - BATTERY

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

C L A I M S
1. A primary alkaline battery comprising:
a cathode comprising a hydrogen-absorbing cathode material;
an anode comprising zinc free of lead, mercury or cadmium;
a separator; and
an alkaline electrolyte.
2. The battery of claim 1, wherein the zinc is free of lead, mercury and cadmium.
3. The battery of claim 1, wherein the zinc includes indium or bismuth. 4. The battery of claim 1, wherein the zinc includes 25 ppm - 1000 ppm indium or 25 ppm - 1000 ppm bismuth.
5. The battery of claim 1, wherein the zinc includes 25 ppm - 1000 ppm indium and 25 ppm - 1000 ppm bismuth.
6. The battery of claim 1, wherein the hydrogen-absorbing cathode material includes a nickel oxyhydroxide, a copper oxide, a barium permanganate, a chemically-produced manganese dioxide, a silver oxide, or a silver permanganate.

7. The battery of claim 1, wherein the hydrogen-absorbing cathode material includes a nickel oxyhydroxide.
8. The battery of claim 1, wherein the hydrogen-absorbing cathode material includes a silver oxide.
9. The battery of claim 1, wherein the hydrogen-absorbing cathode material includes a silver permanganate.
10. The battery of claim 1, wherein the hydrogen-absorbing cathode material includes a copper oxide.
11. The battery of claim 1, wherein the hydrogen-absorbing cathode material includes a barium permanganate.
12. The battery of claim 1, wherein the hydrogen-absorbing cathode material includes a chemically-produced manganese dioxide.
13. The battery of claim 1, wherein the hydrogen-absorbing cathode material absorbs at least 20% more hydrogen than an equivalent amount of electrochemicallyproduced manganese dioxide within an equivalent time interval.

14. A method of manufacturing a primary alkaline battery comprising: assembling a cathode comprising a hydrogen-absorbing cathode material, an anode comprising zinc free of lead, mercury or cadmium, a separator, and an alkaline electrolyte to form the alkaline battery.
15. The method of claim 12, wherein the zinc is free of lead, mercury and cadium.
16. The method of claim 14, wherein the zinc includes indium or bismuth.
17. The method of claim 14, wherein the zinc includes 25 ppm - 1000 ppm indium or 25 ppm - 1000 ppm bismuth.
18. The method of claim 14, wherein the zinc includes 25 ppm - 1000 ppm indium and 25 ppm - 1000 ppm bismuth.
19. The method of claim 14, wherein the hydrogen-absorbing cathode material includes a nickel oxyhydroxide, a copper oxide, a barium permanganate, a chemically-produced manganese dioxide, a silver oxide, or a silver permanganate. 20. The method of claim 14, wherein the hydrogen-absorbing cathode material absorbs at least 20% more hydrogen than an equivalent amount of electrochemically-produced manganese dioxide within an equivalent time interval.

21. A primary alkaline battery comprising:
a cathode comprising an active material that absorbs hydrogen more rapidly than an equivalent amount of electrochemically-produced manganese dioxide within an equivalent time interval;
an anode comprising zinc free of lead, mercury, or cadmium; and
an alkaline electrolyte.
22. The battery claim 21, wherein the actual material includes a nickel oxyhydroxide, a copper oxide, a barium permanganate, a chemically-produced manganese dioxide, a silver oxide or a silver permanganate.
23. The battery of claim 21, wherein the zinc includes lead, mercury, and cadmium.
24. The battery of claim 21, wherein the active material absorbs at least 20% more than an equivalent amount of electrochemically-produced manganese dioxide within an equivalent time interval.