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US 9,831,489 B2Granted
Positive-electrode active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery including the same
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorHiroshi Kawada
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Abstract
A positive-electrode active material for a non-aqueous electrolyte secondary battery according to the present disclosure contains a layered lithium (Li)-containing transition metal composite oxide that contains Li in the transition metal layer and more than 0.4 μmol/g and less than 25 μmol/g of iodine (I) or bromine (Br).
Claims7
A positive-electrode active material for a non-aqueous electrolyte secondary battery, comprising:
- a layered crystalline lithium (Li)-containing transition metal composite oxide that has a layered structure and contains Li in a transition metal layered thereof and sodium Na,
- wherein the positive-electrode active material is represented by the general formula LixNaa[LiyM1-y]O2-c+αI2c, where M contains at least one of Ni, Co, and Mn, 0.67<x<1.1, 0<y<0.33, 0.0001≦a≦0.1, −0.1≦α≦0.1, and c is calculated by:
- c=an iodine content (mol/g)/(mol/g of the positive-electrode active material)/2,
- where 0.4 μmol/g<the iodine content<25 μmol/g, and
- the I is contained within the layered structure of the Li-containing transition metal composite oxide.
2 more elements
Dependencies are inferred from the claim text.