EP 2973801 A1 20160120 - COMPOSITE CATHODE MATERIALS HAVING IMPROVED CYCLE LIFE
Title (en)
COMPOSITE CATHODE MATERIALS HAVING IMPROVED CYCLE LIFE
Title (de)
ZUSAMMENGESETZTE KATHODENMATERIALIEN MIT VERBESSERTER LEBENSDAUER
Title (fr)
MATÉRIAUX DE CATHODE COMPOSITES À DURÉE DE VIE AMÉLIORÉE
Publication
Application
Priority
US 2013031996 W 20130315
Abstract (en)
[origin: WO2014149020A1] Lithiated composite materials and methods of manufacture are provided that are capable of imparting excellent capacity and greatly improved cycle life in lithium-ion secondary cells. By supplementing a high nickel content lithium storage material with a transition metal oxide lithium storage material or a dopant at relatively low levels, the capacity of the high nickel content lithium storage materials is maintained while cycle life is dramatically improved. These characteristics are promoted by methods of producing the materials that intermix unlithiated precursor materials with a lithium source and sintering the materials together in a single sintering reaction. The resulting lithiated composite materials provide for the first time both high capacity and excellent cycle life to predominantly high nickel content electrodes.
IPC 8 full level
H01M 4/525 (2010.01); H01M 10/0525 (2010.01)
CPC (source: EP)
C01G 53/42 (2013.01); C01G 53/50 (2013.01); H01M 4/0471 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/364 (2013.01); H01M 4/525 (2013.01); C01P 2002/50 (2013.01); C01P 2002/72 (2013.01); C01P 2004/03 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01); Y02E 60/10 (2013.01)
Citation (search report)
See references of WO 2014149020A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
US 2013031996 W 20130315; EP 13879049 A 20130315