Polymer binder additives for electrodes
AssigneeA123 Systems, Inc.
InventorsLixin Wang, Chloe Harrison, Derek C. Johnson
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Abstract
A binder for an electrode is provided herein. In one example, the electrode may include a current collector, and an electrode coating layer, the electrode coating layer including an electrode active material and a binder, where the binder may comprise an aromatic polyamide-based compound, and the binder may be present at greater than 0 wt % and less than or equal to 30 wt % of the electrode coating layer. In one example, the binder provides stronger cohesion between particles of the electrode active material. Methods and systems are further provided for fabricating the electrode including the binder.
Claims21
An electrode, comprising:
- a current collector;
- and
- an electrode coating layer, the electrode coating layer comprising an electrode active material and a binder, where
- the binder comprises an aromatic polyamide-based compound, and
- the binder is present at greater than 0 wt % and less than or equal to 30 wt % of the electrode coating layer.
(canceled)
A lithium-ion battery, comprising:
- a first electrode including an electrode active material, a current collector, and an aromatic polyamide-based compound;
- a second electrode;
- and
- a separator disposed between the first electrode and the second electrode.
A method for fabricating an electrode, the method comprising:
- mixing an electrode active material in a solvent to form a mixture;
- adding an aromatic polyamide-based compound to the mixture;
- and
- adding a conductive additive to the mixture;
- and thereafter
- mixing the mixture to form a slurry-based coating;
- and
- layering the slurry-based coating in the electrode.
Dependencies are inferred from the claim text.