Cathode compositions for lithium-ion batteries

Details Cathode compositions for lithium-ion batteries Cathode compositions for lithium-ion batteries

2006-07-18

2006-07-18

Barr, Michael (Department: 1746)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S224000, C252S182100

Reexamination Certificate

active

07078128

ABSTRACT:
A cathode composition for a lithium-ion battery having the formula Li[M1(1-x)Mnx]O2where 0<x<1 and M1represents one or more metal elements, with the proviso that M1is a metal element other than chromium. The composition is in the form of a single phase having an O3 crystal structure that does not undergo a phase transformation to a spinel crystal structure when incorporated in a lithium-ion battery and cycled for 100 full charge-discharge cycles at 30° C. and a final capacity of 130 mAh/g using a discharge current of 30 mA/g.

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