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OwnerYu-Hua Kao, Ting Han +2inventors
InventorsYu-Hua Kao, Ting Han, Ing-Feng Hu, Hideaki Maeda
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A lithium metal oxide powder comprises secondary particles comprised of agglomerated primary lithium metal oxide particles bonded together, the primary lithium metal oxide particles being comprised of Li, Ni, Mn, Co and oxygen and having a median primary particle size of 0.1 micrometer to 3 micrometers, wherein the secondary particles have a porosity that is at least about 10%. The lithium metal oxide powders are useful make lithium ion battery having improved performance particularly when the secondary particles deagglomerate when forming the cathode used in the lithium ion battery.
A lithium metal oxide powder useful to make a lithium ion battery cathode, the lithium metal oxide powder comprising secondary particles comprised of agglomerated primary lithium metal oxide particles bonded together, the primary lithium metal oxide particles being comprised of Li, Ni, Mn, Co and oxygen and having a median primary particle size of 0.1 micrometer to 3 micrometers, wherein the secondary particles have a porosity that is 12% to 35% and, by volume, the porosity is greater than 50% open porosity.
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