Positive electrode active material and nonaqueous...

Details Positive electrode active material and nonaqueous... Positive electrode active material and nonaqueous...

C - Chemistry, Metallurgy

01

B

C01B 25/45 (2006.01) H01M 4/02 (2006.01) H01M 10/00 (2006.01) H01M 4/48 (2006.01) H01M 4/58 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2378278

The present invention provides a positive electrode active material capable of obtaining a large discharge capacity and good discharge rate characteristics. According to the invention a positive electrode active material containing a lithium-containing composite metal oxide has a composition represented by formula (1) given below: Image where M is at least one kind of an element selected from the group consisting of Co and Ni, and the molar ratio x is larger than 0.5 and smaller than 0.75, i.e., 0.5 < x < 0.75.

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