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US 7,459,237 B2Granted
Non-aqueous lithium electrical cell
AssigneeThe Gillette Company
InventorsDana Alexa Totir, Kirakodu S. Nanjundaswamy, Michael Pozin
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Abstract
An electrochemical cell includes a cathode containing MnO2 and an anode including lithium. The cell also includes an electrolyte containing a bis(oxalato)borate salt. The cell further includes an aluminum surface in electrical contact with a non-aluminum metal surface.
Claims19
A primary electrochemical cell comprising:
- a cathode containing MnO2;
- a cathode current collector comprising aluminum coupled to a positive lead including a metal selected from the group consisting of aluminum, titanium, and steel;
- an anode containing lithium;
- and
- an electrolyte containing a bis(oxalato)borate salt selected from the group consisting of metal bis(oxalato)borate salts and ammonium bis(oxalato)borate salts at a concentration of from 0.005 M to 0.1 M.
2 more elements
An electrochemical cell comprising:
- a cathode containing an aluminum current collector;
- a positive lead including a metal selected from the group consisting of aluminum, titanium, and steel coupled to the aluminum current collector;
- an anode comprising lithium;
- and
- an electrolyte containing a bis(oxalato)borate salt selected from the group consisting of metal bis(oxalato)borate salts and ammonium bis(oxalato)borate salts at a concentration of from 0.005 M to 0.1 M and a second salt comprising a lithium salt, wherein the cell is a primary electrochemical cell.
2 more elements
A primary electrochemical cell comprising:
- a cathode containing only MnO2 as an active cathode material and an aluminum current collector;
- a positive lead including a metal selected from the group consisting of aluminum, titanium, and steel coupled to the aluminum current collector;
- an anode containing lithium;
- and
- an electrolyte containing a bis(oxalato)borate salt selected from the group consisting of metal bis(oxalato)borate salts and ammonium bis(oxalato)borate salts at a concentration of from 0.005M to 0.1 M.
2 more elements
Dependencies are inferred from the claim text.