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US 8,137,842 B2Granted
Battery cathodes
AssigneeThe Gillette Company
InventorsTodd E. Bofinger, William L. Bowden, George Cintra, Kirakodu S. Nanjundaswamy, Rimma A. Sirotina, Dana Alexa Totir, Fan Zhang
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Abstract
Batteries and methods of making batteries are disclosed. In some embodiments, a method of making a battery can include contacting a manganese oxide with lithium hydroxide and lithium bromide and/or lithium chloride, and incorporating the manganese oxide into a cathode of the battery.
Claims14
A method of making a battery, the method comprising:
- (a) dispersing an unlithiated manganese dioxide in water;
- (b) adding lithium hydroxide and at least one lithium salt selected from the group consisting of lithium bromide and lithium chloride to the dispersion of unlithiated manganese dioxide in water to provide a lithiation mixture;
- (c) heating the lithiation mixture at a temperature of from about 40° C. to 150° C. to form a lithiated manganese dioxide;
- (d) isolating the lithiated manganese dioxide from the water;
- (e) heating the isolated lithiated manganese dioxide at a temperature of from 300° C. to about 500° C. in an atmosphere greater than about 21 percent oxygen;
- (f) incorporating the lithiated manganese dioxide from step (e) into a cathode for a battery;
- and
- (g) incorporating the cathode into a battery.
5 more elements
Dependencies are inferred from the claim text.