Stacked battery components and configurations
View Patent ↗Batteries according to embodiments of the present technology may include a first battery cell including a first body characterized by a first length and a first width, and a first tab extending from an edge of the first body. The first tab may be characterized by a width less than the first width of the first body. The batteries may also include a second battery cell stacked below the first battery cell. The second battery cell may include a second body characterized by a second length and a second width, and a second tab extending from an edge of the second body. The second tab may be characterized by a width less than the second width of the second body. The second tab may also be characterized by a width greater than the width of the first tab providing an extension of the second tab protruding from below the first tab.
1. A stacked battery comprising:
a plurality of battery cells electrically coupled together; and
an end plate electrically coupled with the plurality of battery cells, wherein the end plate is configured to distribute current through the plurality of battery cells, wherein each conductive layer of the plurality of conductive layers is characterized by a thickness of between about 10 μm and about 100 μm, and wherein the end plate comprises a plurality of conductive layers laminated together.
2. The stacked battery of claim 1 , wherein the plurality of conductive layers are laminated discontinuously across the end plate.
3. The stacked battery of claim 1 , further comprising a joint electrically coupled with the end plate along an edge of the end plate, wherein the joint provides electrical mating for a power cable configured to provide current to or receive current from the stacked battery.
4. The stacked battery of claim 1 , further comprising a conductive bonding promoter applied along a surface of the end plate adjacent the plurality of battery cells.
5. The stacked battery of claim 1 , wherein the plurality of conductive layers of the end plate comprise a metal selected from the group consisting of aluminum, copper, and nickel.
6. The stacked battery of claim 1 , further comprising an insulating material disposed along an edge region of a first surface of the end plate electrically coupled with the plurality of battery cells, and disposed across a second surface of the end plate opposite the first surface of the end plate.
7. The stacked battery of claim 1 , wherein the end plate is characterized by flexibility along a length of the end plate configured to maintain contact with the plurality of battery cells across a surface of the end plate during operational swelling of the plurality of battery cells.
8. The stacked battery of claim 1 , wherein each cell of the plurality of battery cells includes a tab extending from a body of the battery cell, wherein each tab is characterized by a width greater than a width of an overlying tab providing an extension of each underlying tab protruding from below each overlying tab.
9. The stacked battery of claim 8 , further comprising a plurality of voltage sensors, wherein the plurality of voltage sensors are distributed to electrically couple a voltage sensor from the plurality of voltage sensors with an individual tab from the plurality of battery cells such that each battery cell of the plurality of battery cells includes a voltage sensor electrically coupled with the tab of the battery cell, and wherein each voltage sensor comprises a lead extending from the voltage sensor in a direction parallel to the width of the tab of the battery cell of the plurality of battery cells with which the voltage sensor is electrically coupled.
10. A stacked battery comprising:
a plurality of battery cells electrically coupled together; and
an end plate electrically coupled with the plurality of battery cells, wherein the end plate is configured to distribute current through the plurality of battery cells, wherein the end plate comprises a plurality of conductive layers laminated together, and wherein the end plate is characterized by flexibility along a length of the end plate configured to maintain contact with the plurality of battery cells across a surface of the end plate during operational swelling of the plurality of battery cells.
11. The stacked battery of claim 10 , wherein the plurality of conductive layers are laminated discontinuously across the end plate.
12. The stacked battery of claim 10 , further comprising a joint electrically coupled with the end plate along an edge of the end plate, wherein the joint provides electrical mating for a power cable configured to provide current to or receive current from the stacked battery.
13. The stacked battery of claim 10 , further comprising a conductive bonding promoter applied along a surface of the end plate adjacent the plurality of battery cells.
14. The stacked battery of claim 10 , wherein the plurality of conductive layers of the end plate comprise a metal selected from the group consisting of aluminum, copper, and nickel.
15. The stacked battery of claim 10 , wherein each conductive layer of the plurality of conductive layers is characterized by a thickness of between about 10 μm and about 100 μm.
16. The stacked battery of claim 10 , further comprising an insulating material disposed along an edge region of a first surface of the end plate electrically coupled with the plurality of battery cells, and disposed across a second surface of the end plate opposite the first surface of the end plate.
17. The stacked battery of claim 10 , wherein each cell of the plurality of battery cells includes a tab extending from a body of the battery cell, wherein each tab is characterized by a width greater than a width of an overlying tab providing an extension of each underlying tab protruding from below each overlying tab.
18. The stacked battery of claim 17 , further comprising a plurality of voltage sensors, wherein the plurality of voltage sensors are distributed to electrically couple a voltage sensor from the plurality of voltage sensors with an individual tab from the plurality of battery cells such that each battery cell of the plurality of battery cells includes a voltage sensor electrically coupled with the tab of the battery cell, and wherein each voltage sensor comprises a lead extending from the voltage sensor in a direction parallel to the width of the tab of the battery cell of the plurality of battery cells with which the voltage sensor is electrically coupled.
19. A stacked battery comprising:
a plurality of battery cells electrically coupled together, wherein each cell of the plurality of battery cells includes a tab extending from a body of the battery cell, and wherein each tab is characterized by a width greater than a width of an overlying tab providing an extension of each underlying tab protruding from below each overlying tab; and
an end plate electrically coupled with the plurality of battery cells, wherein the end plate is configured to distribute current through the plurality of battery cells, wherein the end plate comprises a plurality of conductive layers laminated together.
20. The stacked battery of claim 19 , further comprising a plurality of voltage sensors, wherein the plurality of voltage sensors are distributed to electrically couple a voltage sensor from the plurality of voltage sensors with an individual tab from the plurality of battery cells such that each battery cell of the plurality of battery cells includes a voltage sensor electrically coupled with the tab of the battery cell, and wherein each voltage sensor comprises a lead extending from the voltage sensor in a direction parallel to the width of the tab of the battery cell of the plurality of battery cells with which the voltage sensor is electrically coupled.