Multi-layer thin carbon films, electrodes incorporating the same, energy storage devices incorporating the same, and methods of making same
AssigneeBluestone Global Tech Limited
InventorsXin ZHAO, Yu-Ming LIN
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Abstract
The invention provides improved paper-like electrodes and electrode active materials for use in flexible energy storage devices, and methods for preparing such electrodes and materials, as well as flexible energy storage devices fabricated from such electrodes and materials and methods of making such devices. The electrodes and electrode active materials comprise multi-layer high-quality thin carbon films, and the methods comprise the use of a repetitive laminar process to deposit such films directly on polymer separators or electrolyte membranes.
Claims57
A method for fabricating an electrode for use in an energy storage device, the method comprising the steps of
- (a) forming a first thin carbon film layer on a first substrate;
- (b) forming a second thin carbon film layer on a second substrate;
- (c) applying a resist composition to said second layer so as to substantially coat said second layer;
- (d) drying said resist coating;
- (e) releasing said second substrate;
- (f) positioning said second layer on top of and in contact relationship with said first layer so as to form a stack;
- (g) removing said resist coating from the top of said stack;
- (h) repeating steps (b) to (g) so as to add further thin carbon film layers to said stack until said stack reaches a desired thickness;
- and
- (i) releasing said first substrate from the bottom of said stack so as to form said electrode.
A method for fabricating an electrode for use in an energy storage device, the method comprising the steps of
- (a) providing a first substrate having a first thin carbon film layer disposed on one surface thereof;
- (b) providing a second substrate having a second thin carbon film layer disposed on one surface thereof;
- (c) applying a resist composition to said second layer so as to substantially coat said second layer;
- (d) drying said resist coating;
- (e) releasing said second substrate;
- (f) positioning said second layer on top of and in contact relationship with said first layer so as to form a stack;
- (g) removing said resist coating from the top of said stack;
- (h) repeating steps (b) to (g) so as to add further thin carbon film layers to said stack until said stack reaches a desired thickness;
- and
- (i) releasing said first substrate from the bottom of said stack so as to form said electrode.
A method for fabricating a graphene-based electrode for use in an energy storage device, the method comprising the steps of
- (a) forming a first graphene film layer on a first substrate;
- (b) forming a second graphene film layer on a second substrate;
- (c) applying a resist composition to said second layer so as to substantially coat said second layer;
- (d) drying said resist coating;
- (e) releasing said second substrate;
- (f) positioning said second layer on top of and in contact relationship with said first layer so as to form a stack;
- (g) removing said resist coating from the top of said stack;
- (h) repeating steps (b) to (g) so as to add further graphene film layers to said stack until said stack reaches a desired thickness;
- and
- (i) releasing said first substrate from the bottom of said stack so as to form said electrode.
A method for fabricating a graphene-based electrode for use in an energy storage device, the method comprising the steps of
- (a) providing a first substrate having a first thin carbon film layer disposed on one surface thereof;
- (b) providing a second substrate having a second thin carbon film layer disposed on one surface thereof;
- (c) applying a resist composition to said second layer so as to substantially coat said second layer;
- (d) drying said resist coating;
- (e) releasing said second substrate;
- (f) positioning said second layer on top of and in contact relationship with said first layer so as to form a stack;
- (g) removing said resist coating from the top of said stack;
- (h) repeating steps (b) to (g) so as to add further graphene film layers to said stack until said stack reaches a desired thickness;
- and
- (i) releasing said first substrate from the bottom of said stack so as to form said electrode.
A method for producing an electrode active material for use in an energy storage device, the method comprising the steps of
- (a) forming a first thin carbon film layer on a first substrate;
- (b) forming a second thin carbon film layer on a second substrate;
- (c) applying a resist composition to said second layer so as to substantially coat said second layer;
- (d) drying said resist coating;
- (e) releasing said second substrate;
- (f) positioning said second layer on top of and in contact relationship with said first layer so as to form a stack;
- (g) removing said resist coating from the top of said stack;
- (h) repeating steps (b) to (g) so as to add further thin carbon film layers to said stack until said stack reaches a desired thickness;
- and
- (i) releasing said first substrate from the bottom of said stack so as to form said electrode active material.
A method for producing an electrode active material for use in an energy storage device, the method comprising the steps of (a) providing a first substrate having a first thin carbon film layer disposed on one surface thereof;
- (b) providing a second substrate having a second thin carbon film layer disposed on one surface thereof;
- (c) applying a resist composition to said second layer so as to substantially coat said second layer;
- (d) drying said resist coating;
- (e) releasing said second substrate;
- (f) positioning said second layer on top of and in contact relationship with said first layer so as to form a stack;
- (g) removing said resist coating from the top of said stack;
- (h) repeating steps (b) to (g) so as to add further thin carbon film layers to said stack until said stack reaches a desired thickness;
- and
- (i) releasing said first substrate from the bottom of said stack so as to form said electrode active material.
A method for producing a graphene-based electrode active material for use in an energy storage device, the method comprising the steps of
- (a) forming a first graphene film layer on a first substrate;
- (b) forming a second graphene film layer on a second substrate;
- (c) applying a resist composition to said second layer so as to substantially coat said second layer;
- (d) drying said resist coating;
- (e) releasing said second substrate;
- (f) positioning said second layer on top of and in contact relationship with said first layer so as to form a stack;
- (g) removing said resist coating from the top of said stack;
- (h) repeating steps (b) to (g) so as to add further graphene film layers to said stack until said stack reaches a desired thickness;
- and
- (i) releasing said first substrate from the bottom of said stack so as to form said electrode active material.
A method for producing a graphene-based electrode active material for use in an energy storage device, the method comprising the steps of
- (a) providing a first substrate having a first thin carbon film layer disposed on one surface thereof;
- (b) providing a second substrate having a second thin carbon film layer disposed on one surface thereof;
- (c) applying a resist composition to said second layer so as to substantially coat said second layer;
- (d) drying said resist coating;
- (e) releasing said second substrate;
- (f) positioning said second layer on top of and in contact relationship with said first layer so as to form a stack;
- (g) removing said resist coating from the top of said stack;
- (h) repeating steps (b) to (g) so as to add further graphene film layers to said stack until said stack reaches a desired thickness;
- and
- (i) releasing said first substrate from the bottom of said stack so as to form said electrode active material.
Dependencies are inferred from the claim text.