DIRECT COATING OF ELECTRODES IN SILICON-DOMINANT ANODE CELLS

1 . A system for continuous roll-to-roll electrode processing, the system comprising:

one or more components configured for receiving at least one precursor composite roll that comprises precursor composite film coated on a current collector; and

a heat treatment oven for applying heat treatment to the precursor composite roll, to convert the precursor composite film into a pyrolyzed composite film coated on the current collector;

wherein the system is configured for processing the precursor composite roll in continuous manner.

2 . The system of claim 1 , wherein the heat treatment oven is configured to apply the heat treatment in reducing atmosphere.

3 . The system of claim 1 , wherein the heat treatment oven is configured to create reducing atmosphere related conditions, the reducing atmosphere related conditions comprising at least one of inert atmosphere, a vacuum, flowing of one or more reducing gases.

4 . The system of claim 1 , comprising one or more moving components configured for moving the precursor composite roll through the heat treatment oven.

5 . The system of claim 1 , comprising one or more feeding components configured for feeding the current collector with the coated precursor composite film into the heat treatment oven from the precursor composite roll.

6 . The system of claim 5 , wherein the one or more feeding components are configured for feeding the current collector with the coated composite film from the heat treatment oven into a composite electrode roll.

7 . The system of claim 1 , wherein the heat treatment oven is configured for applying heat treatment in each of a plurality of temperature zones.

8 . The system of claim 7 , wherein the heat treatment oven is configured for applying different heat treatments in at least two different ones of the plurality of temperature zones.

9 . The system of claim 1 , wherein the heat treatment oven is configured for applying cooling in at least one portion of the heat treatment oven.

10 . The system of claim 1 , wherein the heat treatment oven comprises one or more atmosphere isolation chambers.

11 . A method for continuous roll-to-roll electrode processing, the method comprising:

applying to a current collector film, at least one precursor composite film;

rolling the current collector film into a precursor composite roll; and

applying heat treatment to the current collector film, wherein the heat treatment is configured for converting at least one precursor composite film to a pyrolyzed composite film;

wherein applying the heat treatment comprises one or both of:

applying the heat treatment to the precursor composite roll in whole; and

applying the heat treatment to the current collector film, with the coated at least one precursor composite film, as it is continuously fed from the precursor composite roll.

12 . The method of claim 11 , comprising applying the heat treatment in reducing atmosphere.

13 . The method of claim 12 , comprising creating reducing atmosphere related conditions during the heat treatment, the reducing atmosphere related conditions comprising at least one of inert atmosphere, a vacuum, flowing of one or more reducing gases.

14 . The method of claim 11 , comprising moving the precursor composite roll in whole through a heat treat oven during the heat treatment.

15 . The method of claim 11 , comprising feeding the current collector with the coated precursor composite film, from the precursor composite roll, into a heat treat oven during the heat treatment.

16 . The method of claim 11 , comprising rolling the current collector with the coated pyrolyzed composite film into a composite electrode roll.

17 . The method of claim 11 , comprising applying the heat treatment separately in each of a plurality of temperature zones.

18 . The method of claim 17 , comprising applying the heat treatment differently in at least two different ones of the plurality of temperature zones.

19 . The method of claim 11 , wherein the heat treatment comprises applying cooling.