EP 3994743 A1 20220511 - ELECTRODES FOR ENERGY STORAGE DEVICES
Title (en)
ELECTRODES FOR ENERGY STORAGE DEVICES
Title (de)
ELEKTRODEN FÜR ENERGIESPEICHEREINRICHTUNGEN
Title (fr)
ÉLECTRODES POUR DISPOSITIFS DE STOCKAGE D'ÉNERGIE
Publication
Application
Priority
- US 201962871041 P 20190705
- US 201962876124 P 20190719
- US 201962954771 P 20191230
- US 202063003341 P 20200401
- US 202063041801 P 20200619
- US 2020040943 W 20200706
Abstract (en)
[origin: WO2021007183A1] An electrode active layer is disclosed that includes a network of high aspect ratio carbon elements (e.g., carbon nanotubes, carbon nanotube bundles, graphene flakes, or the like) that provides a highly electrically conductive scaffold that entangles or enmeshes the active material, thereby supporting the layer. A surface treatment can be applied to the high aspect ratio carbon elements to promote adhesion to the active material and any underlying electrode layers improving the overall cohesion and mechanical stability of the active layer. This surface treatment forms only a thin (in some cases even monomolecular) layer on the network, leaving the large void spaces that are free of any bulk binder material and so may instead be filled with active material. The resulting active layer may be formed with excellent mechanical stability even at large thickness and high active material mass loading.
IPC 8 full level
H01M 4/133 (2010.01); H01G 11/36 (2013.01); H01M 4/139 (2010.01)
CPC (source: EP KR)
H01G 11/36 (2013.01 - EP KR); H01G 11/86 (2013.01 - EP KR); H01M 4/0404 (2013.01 - EP KR); H01M 4/0471 (2013.01 - EP KR); H01M 4/049 (2013.01 - EP); H01M 4/131 (2013.01 - EP KR); H01M 4/134 (2013.01 - EP); H01M 4/1391 (2013.01 - EP KR); H01M 4/1395 (2013.01 - EP); H01M 4/364 (2013.01 - EP); H01M 4/386 (2013.01 - EP); H01M 4/48 (2013.01 - EP); H01M 4/485 (2013.01 - KR); H01M 4/525 (2013.01 - EP KR); H01M 4/587 (2013.01 - EP); H01M 4/62 (2013.01 - KR); H01M 4/621 (2013.01 - EP); H01M 4/622 (2013.01 - KR); H01M 4/625 (2013.01 - EP KR); H01M 10/0525 (2013.01 - KR); H01M 10/052 (2013.01 - EP); H01M 2220/20 (2013.01 - KR); Y02E 60/10 (2013.01 - EP); Y02E 60/13 (2013.01 - KR); Y02T 10/70 (2013.01 - EP)
Citation (search report)
See references of WO 2021007183A1
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)
WO 2021007183 A1 20210114; CA 3155309 A1 20210114; CN 115152051 A 20221004; EP 3994743 A1 20220511; JP 2022550236 A 20221201; KR 20230010184 A 20230118; MX 2022000268 A 20220614
DOCDB simple family (application)
US 2020040943 W 20200706; CA 3155309 A 20200706; CN 202080056350 A 20200706; EP 20837301 A 20200706; JP 2022500572 A 20200706; KR 20227003864 A 20200706; MX 2022000268 A 20200706