公开(公告)号：US20170256789A1

公开(公告)日：2017-09-07

申请号：US15512706

申请日：2015-09-21

Applicant: Dow Global Technologies LLC

Inventor： Yu-Hua Kao ,  Ting Han ,  Ing-Feng Hu ,  Hideaki Maeda

IPC: H01M4/36 ,  C01G53/00 ,  H01M4/525 ,  H01M4/04 ,  H01M10/0525 ,  H01M4/505

CPC classification number: H01M4/364 ,  C01G53/50 ,  C01P2002/50 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/40 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/0435 ,  H01M4/1391 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028

Abstract: 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.