Positive electrode material for lithium-ion accumulator
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United States of America Patent
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Apr 7, 2015
Grant Date -
Dec 23, 2010
app pub date -
Jun 23, 2010
filing date -
Jun 23, 2009
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Abstract
A composition including (a) a lithiated oxide of transition metals containing at least nickel, cobalt and aluminum and (b) a lithiated phosphate of at least one transition metal, the surface of which is at least partially covered by a layer of carbon. In the composition, the proportion by mass of the lithiated oxide of transition metals containing at least nickel, cobalt and aluminum is less than or equal to 10% of the weight of the composition, and the proportion by mass of the lithiated phosphate of at least one transition metal is greater than or equal to 90% of the weight of the composition. A lithium-ion or lithium-polymer type accumulator including at least one positive electrode containing this composition.
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