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AssigneeLG Energy Solution, Ltd.
InventorsGun Woo Kim, Hyuck Hur, Kang Joon Park, Dong Hwi Kim, Sin Young Park, Byung Chun Park, Gi Beom Han, You Shin Lee
Estimating the term…
present disclosure A positive electrode includes an overlithiated manganese-based oxide, which has a molar ratio (Li/Me) of lithium to total metals excluding the lithium of greater than 1.1, has an amount of manganese among the total metals excluding the lithium of 50 mol % or more, and satisfies Equation (1), 0 . 0 5 < I T M / I L i < 0 . 1 3 Equation ( 1 ) wherein ITM and ILi are a sum of areas of peaks appearing in a region of 1,000 ppm to 2,500 ppm and a sum of areas of peaks appearing in a region of 300 ppm to 900 ppm when performing peak deconvolution of a 1D NMR centerband spectrum which is extracted from a 2D 7Li MATPASS (Magic Angle Turning Phase Adjusted Spinning Sideband) NMR spectrum of the overlithiated manganese-based oxide, respectively.
A positive electrode comprising an overlithiated manganese-based oxide, which has a molar ratio (Li/Me) of lithium to total metals excluding the lithium of greater than 1.1, has an amount of manganese among the total metals excluding the lithium of 50 mol % or more, and satisfies Equation (1), as a positive electrode active material
Dependencies are inferred from the claim text.