US Patent No. 9,780,354

BATTERY ELECTRODE MATERIAL AND METHOD FOR MAKING THE SAME


Patent No. 9,780,354
Issue Date October 03, 2017
Title Battery Electrode Material And Method For Making The Same
Inventorship Mark Buchanan, Oslo (NO)
Geir Helgesen, Finstadjordet (NO)
Matti Knaapila, Drammen (NO)
Preben J.S. Vie, Stange (NO)
Gorm Krogh Johnsen, Lillestrom (NO)
Rahul Fotedar, Kjeller (NO)
Assignee CONDALIGN AS, Kjeller (NO)

Claim of US Patent No. 9,780,354

1. A method for manufacturing a battery electrode material, comprising
a) applying an electric field to a mixture comprising at least one polymer, conductive particles and at least one solvent
whereby said conductive particles become arranged between the electrodes in at least two lines that are oriented in the same
direction as the electric field line, and

b) stabilizing the at least one polymer, conductive particles and at least one solvent by removing at least some of said at
least one solvent while maintaining the electric field in step a) whereby the at least two lines of conductive particles remain
in their position when said electric field is removed,

wherein the at least one polymer is selected from the group consisting of polyvinyldifluoride, carboxymethylcellulose, styrene
butadiene rubber, poly(3,4-ethylenedioxythiophene), polyacrylic acid and alginate.