Bipolar battery

1 . A bipolar battery, comprising:

a bipolar electrode comprising a bipolar substrate, said bipolar substrate having a first surface supporting a positive active composition and a second surface supporting a negative active composition, said first surface and said second surface being non-planar.

2 . A bipolar battery, comprising:

a bipolar electrode, comprising:

a bipolar substrate having corrugations, said corrugations forming first channels and second channels opposite said first channels;

a first active composition disposed in said first channels; and

a second active composition disposed in said second channels, said first and second active compositions being of opposite types.

3 . The bipolar battery of claim 2 , wherein the cross-sectional area of said first channels is greater than the cross-sectional area of said second channels.

4 . The bipolar battery of claim 3 , wherein said first active composition is a positive active composition and said second active composition is a negative active composition.

5 . The battery of claim 2 , wherein said first active composition is conformally disposed along the surface of said first channels and said second active composition is conformally disposed along the surface of said second channels.

6 . The battery of claim 2 , wherein said first active composition fills said first channels and said second active composition fills said second channels.

7 . The battery of claim 2 , wherein said first active composition comprises a nickel hydroxide material.

8 . The battery of claim 2 , wherein said second active composition comprises a hydrogen storage alloy.

9 . The battery of claim 2 , wherein said bipolar substrate comprises a metallic material.

10 . The battery of claim 2 , wherein said bipolar substrate comprises a metallic foil.

11 . The battery of claim 2 , wherein said bipolar substrate hag a thickness of less than 10 mils.

12 . The battery of claim 2 , wherein said bipolar substrate comprises a non-metallic conductive material.

13 . A bipolar battery, comprising:

a first electrode including a first substrate with first corrugations, said first corrugation forming first channels and second channels opposite said first channels; and

a second electrode adjacent said first electrode, said second electrode including a second substrate with second corrugations, said second corrugations having first channels and second channels.

14 . The bipolar battery of claim 13 , wherein said first corrugations cross said second corrugations.

15 . The bipolar battery of claim 13 , wherein said first corrugations are nested in said second corrugations.

16 . The bipolar battery of claim 13 , wherein the first channels of said first substrate have a cross sectional area which is greater than the second channels of said first substrate, the first channels of said second substrate have a cross sectional area which is greater than the second channels of said second substrate.

17 . The bipolar battery of claim 13 , wherein said first electrode is a bipolar electrode, said first substrate is a bipolar substrate and said second electrode is a monopolar electrode.

18 . The bipolar battery of claim 13 , wherein said first electrode is a bipolar electrode, said first substrate is a bipolar substrate, said second electrode is a bipolar electrode and said second substrate is a bipolar substrate.

19 . The bipolar battery of claim 13 , wherein said battery is a nickel metal hydride battery.

20 . The bipolar battery of claim 13 , wherein said battery is a lithium ion battery.

21 . The bipolar battery of claim 13 , wherein said first substrate has a first side and a second side, said second substrate has a first side and a second aide, the first side of said first substrate being a mirror image of said first side of said second substrate, the second side of said first substrate being a mirror image of said second side of said second substrate.

22 . The bipolar battery of claim 2 , wherein said first active composition is a positive active composition and said second active composition is a negative active composition.

23 . A first bipolar battery, comprising:

one or more first bipolar electrodes, each of said first bipolar electrodes including a first bipolar substrate supporting a positive active composition and a negative active composition; and

an electrolyte,

said first bipolar battery having a footprint smaller than the footprint of a second bipolar battery using a planar bipolar plate, the capacity and chemistry of said second battery being the same as the capacity and chemistry of said first battery.

24 . The first battery of claim 23 , wherein said chemistry is a nickel-metal hydride chemistry.

25 . The first battery of claim 23 , wherein said first bipolar substrate of each of said bipolar electrodes has corrugations.