Saft America

Owen Ou

Thomas A Greszler

Frank Cao

Xilin Chen

Saori Tokuoka

Carine Margez

Jian Dong

Provided is a positive electrode active material for a lithium-ion battery, the positive electrode active material including a blend of a doped lithium manganese iron phosphate (dLMFP) according to the formula: LiMnFeMPO, wherein 0.9&#x3c;x+y&#x3c;1; and M is one or more selected from the group consisting of Mg, Ca and Ba with one or both of a lithium nickel cobalt manganese oxide (NMC) compound having a Ni content greater than 0.6 relative to a total amount of metals other than Li and a lithium nickel cobalt aluminum oxide (NCA) compound. In particular, provided is a blend at a weight ratio of dLMFP to NMC and/or NCA (i.e., dLMFP:(NMC+NCA)) of &#x3e;70:&#x3c;30, such as 75:25, 80:20, 85:15, 90:10, etc.

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Gaithersburg, MD, United States of America

Owen Ou