Electrolytic manganese dioxide and method for producing same, and method for producing lithium-manganese complex oxide
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United States of America Patent
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Dec 15, 2015
Grant Date -
Dec 12, 2013
app pub date -
Feb 16, 2012
filing date -
Feb 18, 2011
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Abstract
The invention provides electrolytic a manganese dioxide with a BET specific surface area of 20 to 60 m2/g, and a volume of at least 0.023 cm3/g for pores with pore diameters of 2 to 200 nm. Also provided is a method for producing an electrolytic manganese dioxide including a step of suspending a manganese oxide in a sulfuric acid-manganese sulfate mixed solution to obtain the electrolytic manganese dioxide, wherein a manganese oxide particles are continuously mixed with a sulfuric acid-manganese sulfate mixed solution, for a manganese oxide particle concentration of 5 to 200 mg/L in the sulfuric acid-manganese sulfate mixed solution. Still further provided is a method for producing a lithium-manganese complex oxide, including a step of mixing the electrolytic manganese dioxide with a lithium compound and heat treating the mixture to obtain a lithium-manganese complex oxide.
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