An electrode slurry composition comprising a solution-processed n-type conducting polymer
AssigneeWestra Materials AB
InventorsSimone Fabiano, Johannes Bintinger, Chi-Yuan Yang, Marc-Antoine Stoeckel, Jun-Da Huang, Qifan Li
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Abstract
The present invention relates to an electrode for use in an energy storage device, said electrode comprising an electron collector, an active material and a conductive binder, wherein said conductive binder comprises solution-processed n-type conducting polymer having a conductivity of at least 100 S/cm.
Claims25
An electrode for use in an energy storage device, said electrode comprising an electron collector, an active material and a conductive binder, wherein said conductive binder comprises solution-processed n-type conducting polymer having a conductivity of at least 100 S/cm.
The electrode according to any one of the preceding claims, wherein said solution-processed n-type conducting polymer comprises a repeating unit comprising a central symmetrical benzene ring as the skeleton, active hydrogen and at least one electron-withdrawing group at the benzylic position.
The electrode according to any one of the preceding claims, wherein said solution-processed n-type conducting polymer is poly(benzodifurandione) (PBFDO), poly[(2,2′-(2,5-dihydroxy-1,4-phenylene)diacetic acid)-co-3,7-dihydrobenzo[1,2-b:4,5-b′]difuran-2,6-dione](PDADF), poly[(2,2′-(2,5-dihydroxy-1,4-phenylene)diacetic acid) (PDADF-P) or a mixture thereof.
The electrode according to any one of the preceding claims, wherein said active material is selected from the group consisting of:
- LiVOPO4, LiCoO2, LiNiO2, LiNi1-nCOnO2, LiNi1-n-mCOnAlmO2, LiNi1-n-mCOnMnmO2, LiMn2O4, LiFePO4 and LiFe1-nMnnPO4, LiCoPO4, Li2FeP2O7, Li2FeSiO4 and combinations thereof.
The electrode according to any one of the preceding claims, wherein said electron collector is a metal selected from a group consisting of aluminium (AI), titanium (Ti), copper (Cu), lithium (Li) and combinations thereof.
The electrode according to any one of the preceding claims, wherein said electrode further comprises a dispersant and/or a non-conductive binder.
An electrode slurry composition for manufacturing an electrode for use in an energy storage device, said electrode slurry composition comprising an active material and a conductive binder, wherein said conductive binder comprises a solution-processed n-type conducting polymer having conductivity of at least 100 S/cm.
A method for manufacturing an electrode for use in an energy storage device, said method comprising the steps of:
- a) mixing an active material with a dispersion solution comprising a conductive binder comprising a solution-processed n-type conducting polymer having conductivity of at least 100 S/cm, thus obtaining a slurry;
- b) applying said slurry onto an electron collector thus obtaining said electrode
- c) drying said electrode.
Dependencies are inferred from the claim text.