EP 4358830 A1 20240501 - A NEW DOPING STRATEGY FOR LAYERED OXIDE ELECTRODE MATERIALS USED IN LITHIUM-ION BATTERIES
Title (en)
A NEW DOPING STRATEGY FOR LAYERED OXIDE ELECTRODE MATERIALS USED IN LITHIUM-ION BATTERIES
Title (de)
NEUE DOTIERUNGSSTRATEGIE FÜR GESCHICHTETE OXIDELEKTRODENMATERIALIEN ZUR VERWENDUNG IN LITHIUM-IONEN-BATTERIEN
Title (fr)
NOUVELLE STRATÉGIE DE DOPAGE POUR MATÉRIAUX D'ÉLECTRODE D'OXYDE EN COUCHES UTILISÉS DANS DES BATTERIES AU LITHIUM-ION
Publication
Application
Priority
- US 202117358460 A 20210625
- US 202117508540 A 20211022
- US 2022035007 W 20220624
Abstract (en)
[origin: WO2022272139A1] The present invention features a new way of doping layered cathode materials in lithium ion batteries. Using a "high entropy'' or "cocktail'' doping strategy, more than four impurity elements can be introduced to the host materials. The present invention applies this high entropy doping strategy to a high nickel content layered oxide material and a lithium-manganese rich material. This novel high entropy doping strategy allows the layred oxide materials used in the positive electrode of lithium ion battery to achieve high energy density, long life cycle and reduced reliance on the expensive and toxic cobalt, all of which are desired attributes for improving the performance of lithium ion batteries and reducing their cost.
IPC 8 full level
A61B 5/00 (2006.01); G06N 3/02 (2006.01); G16B 40/20 (2019.01); G16H 50/20 (2018.01); G16H 50/70 (2018.01)
CPC (source: EP)
C01G 53/006 (2013.01); C01G 53/42 (2013.01); C01G 53/50 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); C01P 2002/52 (2013.01); C01P 2002/70 (2013.01); C01P 2002/72 (2013.01); C01P 2002/76 (2013.01); C01P 2002/77 (2013.01); C01P 2002/85 (2013.01); C01P 2002/88 (2013.01); C01P 2002/89 (2013.01); C01P 2004/04 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01); Y02E 60/10 (2013.01)
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022272139 A1 20221229; WO 2022272139 A9 20230309; EP 4358830 A1 20240501
DOCDB simple family (application)
US 2022035007 W 20220624; EP 22829440 A 20220624