EP 4128387 A1 20230208 - METHOD FOR MANUFACTURING LITHIUM-ION BATTERIES
Title (en)
METHOD FOR MANUFACTURING LITHIUM-ION BATTERIES
Title (de)
VERFAHREN ZUR HERSTELLUNG VON LITHIUM-IONEN-BATTERIEN
Title (fr)
PROCEDE DE FABRICATION DE BATTERIES A IONS DE LITHIUM
Publication
Application
Priority
- FR 2003108 A 20200330
- IB 2021052606 W 20210330
Abstract (en)
[origin: CA3173400A1] Method for manufacturing a lithium-ion battery with a capacity greater than 1 mAh, comprising the depositing of at least one dense layer, which can be an anode and/or a cathode and/or an electrolyte, using a dense layer depositing method comprising the following steps: procuring a substrate and a suspension of non-agglomerated nanoparticles of a material P; depositing a layer, on the substrate, from the suspension; drying the layer produced in this manner; compacting the dried layer using mechanical compression and/or heat treatment; the depositing method being characterised in that the suspension of non-agglomerated nanoparticles of material P comprises nanoparticles of material P having a size distribution, the size being characterised by its value D50, such that: - the distribution comprises nanoparticles of material P of a first size D1 between 20 nm and 50 nm, and nanoparticles of material P of a second size D2, characterised by a value D50 at least five times less than that of D1; or - the distribution has an average size of nanoparticles of material P that is less than 50 nm and a ratio of standard deviation from the average size greater than 0.6.
IPC 8 full level
H01M 4/04 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); B82Y 30/00 (2006.01); C23C 18/12 (2006.01); C25D 13/02 (2006.01); C25D 15/00 (2006.01); H01M 4/139 (2006.01); H01M 10/0525 (2006.01); H01M 10/0562 (2006.01); H01M 10/0585 (2006.01)
CPC (source: EP IL KR US)
B01J 23/34 (2013.01 - EP IL); B01J 23/78 (2013.01 - EP IL); B01J 27/04 (2013.01 - EP IL); B01J 27/14 (2013.01 - EP IL); B01J 27/1853 (2013.01 - EP IL); B01J 27/198 (2013.01 - EP IL); B01J 27/24 (2013.01 - EP IL); B01J 35/23 (2024.01 - EP IL); B01J 35/33 (2024.01 - EP IL); B01J 35/40 (2024.01 - EP IL); B01J 37/0221 (2013.01 - EP IL); C25D 13/02 (2013.01 - EP IL); C25D 15/00 (2013.01 - EP IL); H01M 4/04 (2013.01 - EP IL); H01M 4/0402 (2013.01 - KR); H01M 4/0409 (2013.01 - US); H01M 4/0457 (2013.01 - KR US); H01M 4/139 (2013.01 - EP IL KR); H01M 10/0525 (2013.01 - EP IL KR US); H01M 10/0562 (2013.01 - EP IL KR); H01M 10/058 (2013.01 - US); H01M 10/0585 (2013.01 - EP IL KR); H01M 50/403 (2021.01 - KR US); H01M 50/491 (2021.01 - KR US); Y02E 60/10 (2013.01 - EP IL); Y02P 70/50 (2015.11 - EP IL)
Citation (search report)
See references of WO 2021198892A1
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)
FR 3108792 A1 20211001; CA 3173400 A1 20211007; CN 115943503 A 20230407; EP 4128387 A1 20230208; IL 296739 A 20221101; JP 2023527955 A 20230703; KR 20220161451 A 20221206; US 2023131454 A1 20230427; WO 2021198892 A1 20211007
DOCDB simple family (application)
FR 2003108 A 20200330; CA 3173400 A 20210330; CN 202180038677 A 20210330; EP 21714695 A 20210330; IB 2021052606 W 20210330; IL 29673922 A 20220922; JP 2022559904 A 20210330; KR 20227037967 A 20210330; US 202117907444 A 20210330