POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, BATTERY, BATTERY PACK, ELECTRONIC APPARATUS, ELECTRIC VEHICLE, ELECTRICITY STORAGE DEVICE, AND ELECTRIC POWER SYSTEM

WIPO Patent Application WO/2018/225450

A1

A battery provided with: a positive electrode including a powder of positive electrode active material particles; a negative electrode; and an electrolyte. The positive electrode active material particles include at least one of lithium cobaltate and lithium cobaltate in which part of cobalt is replaced with another metal element. When the spectrum of an O1s orbit of the surface of the positive electrode active material particles is measured by hard X-ray photoelectron spectroscopy using a 7.94 keV hard X-ray, a peak is shown in a region A having a binding energy of not less than 528 eV and not more than 532 eV and in a region B of more than 532 eV and not more than 536 eV. When the maximum intensity of the peak in each of the region A and the region B is IA, IB, the peak intensity ratio IA/IB satisfies the relationship IA/IB < 2.5.

WO/2023/162698	POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
JP2019164877	POSITIVE ELECTRODE ACTIVE MATERIAL OF LITHIUM ION BATTERY AND LITHIUM ION BATTERY ARRANGED BY USE THEREOF
JP6511521	Positive electrode active material for lithium secondary batteries, this manufacturing method and lithium secondary batteries containing it

NIWATA YUKI (JP)
YANAGIHARA ASUKI (JP)
HOSOI SHIZUKA (JP)
HOSOYA YOSUKE (JP)

PCT/JP2018/018372

December 13, 2018

May 11, 2018

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MURATA MANUFACTURING CO (JP)

H01M4/525; H01M4/36; H01M4/505

JP2016033901A	2016-03-10
JP2016033902A	2016-03-10
JP2017004727A	2017-01-05
JP2004014405A	2004-01-15
JP2001202999A	2001-07-27

SUGIURA, Masatomo et al. (JP)

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