Battery cap with cut-out sections
Various embodiments described herein relate to a battery that includes a battery cap with one or more cut-out sections. The battery cap may be used to at least partially cover a circuit board that is proximate an end of a battery cell. In various examples, the cut-out sections may be configured to accommodate one or more cell tabs of the battery that protrude above the circuit board.
1. A battery, comprising:
a battery cell having an anode tab and a cathode tab;
a circuit board having a battery monitoring integrated circuit disposed thereon,
wherein the circuit board is electrically coupled to the anode tab and the cathode tab;
a battery cap over at least a portion of the circuit board,
wherein the battery cap has a wall that comprises an inner surface and an opposing outer surface, and
wherein the wall defines one or more openings that collectively accommodate the anode tab and the cathode tab such that:
each of the anode tab and the cathode tab extends between the circuit board and the outer surface of the wall in a first direction that is orthogonal to the outer surface; and
a respective upper surface of each of the anode tab and the cathode tab is disposed within a respective opening of the one or more openings;
a first metal insert that covers the upper surface of the anode tab; and
a second metal insert that covers the upper surface of the cathode tab,
wherein the battery cap is formed of a nonconductive material and comprises one or more connectors for retaining the first metal insert and the second metal insert, wherein the first metal insert and the second metal insert are coplanar with or attached to the outer surface of the wall.
2. The battery of claim 1 , wherein the first metal insert is disposed within the respective one or more openings, between the outer surface of the wall and the upper surface of the anode tab and the second metal insert is disposed within the respective one or more openings, between the outer surface of the wall and the cathode tab.
3. The battery of claim 1 , further comprising a cosmetic label covering at least the first metal insert.
4. The battery of claim 1 , wherein the upper surface of the anode tab is recessed within the respective opening that accommodates the anode tab.
5. The battery of claim 3 , wherein:
the first metal insert extends, in the direction that is orthogonal to the outer surface of the wall, from the upper surface of the anode tab to a plane defined by the outer surface, such that an upper surface of the first metal insert is coplanar with the outer surface; and
the second metal insert extends, in the direction that is orthogonal to the outer surface, from the upper surface of the cathode tab to the plane defined by the outer surface, such that an upper surface of the second metal insert is coplanar with the outer surface.
6. The battery of claim 1 , wherein the first metal insert and the second metal insert are embedded within the battery cap.
7. The battery of claim 1 , wherein the wall has a thickness greater than a thickness of the anode tab.
8. An electronic device, comprising:
a battery, comprising:
a battery cell having an anode tab and a cathode tab;
a circuit board having a battery monitoring integrated circuit disposed thereon, wherein the circuit board is electrically coupled to the anode tab and the cathode tab;
a battery cap over at least a portion of the circuit board,
wherein the battery cap has a top wall that comprises a bottom surface and an opposing top surface, and
wherein the top wall defines one or more cut-out sections that collectively accommodate the anode tab and the cathode tab such that:
each of the anode tab and the cathode tab extends between the circuit board and the top surface of the top wall in a direction that is orthogonal to the top surface; and
a respective upper surface of each of the anode tab and the cathode tab is disposed within a respective cut-out section of the one or more cut-out sections;
a first metal insert that covers the upper surface of the anode tab;
a second metal insert that covers the upper surface of the cathode tab,
wherein the battery cap is formed of a nonconductive material and comprises one or more connectors for retaining the first metal insert and the second metal insert, wherein the first metal insert and the second metal insert are coplanar with or attached to the top surface of the wall; and
one or more processors configured to:
receive signals from the circuit board; and
manage electric power provided from the battery to a display based at least in part on the signals received from the circuit board.
9. The electronic device of claim 8 , wherein the upper surface of the anode tab is recessed within the respective cut-out section that accommodates the anode tab.
10. The electronic device of claim 8 , wherein the first metal insert and the second metal insert are embedded within the battery cap.
11. The electronic device of claim 8 , wherein:
the first metal insert extends, in the direction that is orthogonal to the surface of the display, from the upper surface of the anode tab to a plane defined by the top surface of the top wall, such that an upper surface of the first metal insert is coplanar with the top surface; and
the second metal insert extends, in the direction that is orthogonal to the surface of the display, from the upper surface of the cathode tab to the plane defined by the top surface, such that an upper surface of the second metal insert is coplanar with the top surface.
12. The electronic device of claim 8 , wherein the top wall has a thickness greater than a thickness of the anode tab.
13. The electronic device of claim 8 , further comprising a cosmetic label covering at least the first metal insert.
14. The electronic device of claim 13 , wherein the cosmetic label covers at least a portion of the battery cell.
15. The electronic device of claim 8 , further comprising:
the display, wherein the display is configured to present visual content; and
a signal channel configured to convey at least one of signals or electrical power between the circuit board and one or more components of the electronic device that are external to the battery, wherein:
at least a portion of the signal channel is in electrical contact with the circuit board; and
the battery cap at least partially covers the at least a portion of the signal channel.
16. A method of constructing a battery, the method comprising:
electrically coupling a circuit board to an anode tab and a cathode tab of a battery cell, wherein the circuit board has a battery monitoring integrated circuit disposed thereon; and
placing a battery cap over at least a portion of the circuit board, wherein:
the battery cap has a wall that defines one or more cut-out sections that collectively accommodate the anode tab and the cathode tab of the battery cell; and
the placing includes positioning the anode tab and the cathode tab within the one or more cut-out sections such that:
each of the anode tab and the cathode tab extends between the circuit board and an outer surface of the wall in a direction that is orthogonal to the outer surface; and
a respective upper surface of each of the anode tab and the cathode tab is disposed within a respective cut-out section of the one or more cut-out sections; and
covering, using a first metal insert, the upper surface of the anode tab; and
covering, using a second metal insert, the upper surface of the cathode tab,
wherein the first metal insert and the second metal insert are coplanar with or attached to the outer surface of the wall.
17. The method of claim 16 , further comprising:
covering at least the first metal insert with a cosmetic label.
18. The method of claim 16 , further comprising:
forming, using a molding process, the battery cap including the first metal insert and the second metal insert, wherein the forming comprises:
embedding the first metal insert and the second metal insert in a nonconductive material used to form the battery cap in the molding process.
19. The method of claim 18 , wherein said forming the battery cap, the first metal insert, and the second metal insert further comprises:
connecting the first metal insert and the second metal insert to the battery cap with one or more connectors.
20. The method of claim 16 , wherein the wall has a thickness greater than a thickness of the anode tab.