Battery design in multiple dimensions
View Patent ↗Embodiments described herein relate to a battery. In one embodiment, a battery includes a first collector plate and a second collector plate arranged in parallel and spaced apart by an internal distance. The battery includes a first electrode and a second electrode disposed between the first collector and the second collector. The first electrode and the second electrode have a geometry that improves power and capacity of the battery. The battery further includes a separator disposed between the first electrode and the second electrode.
1. A battery, comprising:
a first collector plate and a second collector plate arranged in parallel and spaced apart by an internal distance;
a first electrode and a second electrode disposed between the first collector plate and the second collector plate, wherein the first electrode and the second electrode have a geometry that improves power and capacity of the battery, wherein the geometry of the first electrode includes a plurality of identical repeating teeth structures that have an irregular shape and that interlock with second electrodes that include a plurality of identical repeating teeth structures, the teeth structures of the first electrode and the second electrode being complementary; and
a separator disposed between the first electrode and the second electrode.
2. The battery of claim 1 , wherein the geometry of the first electrode and the second electrode is a complementary interlocking shape that optimizes an interface between the first electrode and the second electrode while maintaining relative volumes of the first electrode and the second electrode.
3. The battery of claim 1 , wherein the geometry of the first electrode and the second electrode is comprised of a series of teeth having a comb shape that interlock, and wherein the series of the teeth are stacked from a top to a bottom of the battery in a repeating pattern and include intervening teeth having the repeating pattern and end teeth that are distinct from the intervening teeth.
4. The battery of claim 1 , wherein a portion of the first electrode that is adjacent to the first collector plate has a first thickness that separates the second electrode from the first collector plate, and wherein a portion of the second electrode that is adjacent to the second collector has a second thickness that separates the first electrode from the second collector.
5. The battery of claim 4 , wherein a thickness of the separator is approximately 20 μm, and wherein the first thickness and the second thickness are defined according to a resolution of a manufacturing process that forms the first and second electrodes.
6. The battery of claim 1 , wherein a width of at least a portion of each tooth of the first electrode and the second electrode is in a range of 180 μm-240 μm.
7. The battery of claim 1 , wherein the plurality of repeating teeth structures are asymmetric and complementary with teeth of the first electrode having a different repeating shape than teeth of the second electrode.
8. The battery of claim 1 , wherein the first electrode is comprised of a first active material including one of lithium nickel cobalt aluminum oxide and graphite, and wherein the second electrode is comprised of a second active material including one of lithium nickel cobalt aluminum oxide and graphite.
9. The battery of claim 1 , wherein the battery is approximately 600 μm by 3000 μm by 3000 μm.
10. A battery, comprising:
a first electrode and a second electrode disposed adjacently and separated by a separator, wherein the first electrode having a first geometry and the second electrode having a second geometry, the first geometry and the second geometry being complementary and interlocking, wherein the first geometry includes a plurality of identical repeating teeth structures that have an irregular shape and that interlock with the second geometry that includes a plurality of identical repeating teething structures.
11. The battery of claim 10 , wherein the first geometry and the second geometry are comprised of a series of teeth having a comb shape that interlock.
12. The battery of claim 11 , wherein the series of the teeth are stacked from a top to a bottom of the battery in a repeating pattern and include intervening teeth having the repeating pattern and end teeth that are distinct from the intervening teeth.
13. The battery of claim 10 , wherein the first geometry is hook-shaped, and the second geometry complements the hook shape to interlock the first electrode and the second electrode.
14. The battery of claim 10 , further comprising:
a first collector plate and a second collector plate arranged in parallel and spaced apart by an internal distance, wherein the first electrode and the second electrode are disposed between the first collector plate and the second collector plate, wherein the first electrode and the second electrode include a plurality of repeating teeth structures that interlock and have an irregular shape.
15. The battery of claim 10 , wherein a portion of the first electrode that separates the second electrode from a first collector has a first thickness that is about 60 μm.
16. The battery of claim 10 , wherein the battery is a micro lithium-ion battery.
17. A micro lithium-ion battery, comprising:
a first collector plate and a second collector plate arranged in parallel and spaced apart by an internal distance;
a first electrode and a second electrode disposed adjacently between the first collector plate and the second collector plate within the internal distance, the first electrode having a first geometry and the second electrode having a second geometry that improves power and capacity of the battery,
wherein the first geometry and the second geometry are complementary and irregularly shaped to interlock the first electrode and the second electrode, and
wherein the first geometry and the second geometry are comprised of a series of teeth that are separately identical; and
a separator disposed between the first electrode and the second electrode.
18. The micro lithium-ion battery of claim 17 , wherein the series of the teeth are stacked from a top to a bottom of the battery in a repeating pattern and include intervening teeth having the repeating pattern and end teeth that are distinct from the intervening teeth.
19. The micro lithium-ion battery of claim 17 , wherein a width of at least a portion of each tooth of the first electrode and the second electrode is in a range of 180 μm-240 μm.
20. The micro lithium-ion battery of claim 17 , wherein a thickness of the separator is approximately 20 μm, and wherein a resolution of a manufacturing process that forms the first electrode and the second electrode defines a distance separating the first electrode from the second collector plate and the second electrode from the first collector plate, wherein the first electrode is comprised of a first active material including one of lithium nickel cobalt aluminum oxide and graphite, and wherein the second electrode is comprised of a second active material including one of lithium nickel cobalt aluminum oxide and graphite.