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 a flat inner surface and an opposing flat 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 flat outer surface of the wall in a first direction that is orthogonal to the flat 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; and
one or more protective covers, comprising a protective cover that has a surface that is coplanar with or attached to the flat outer surface of the wall, wherein the protective cover does not cover a surface of the battery cap outside the flat outer surface of the wall.
2. The battery of claim 1 , wherein the one or more protective covers are disposed within the respective one or more openings, between the flat outer surface of the wall and the respective upper surface of the anode tab or the cathode tab.
3. The battery of claim 1 , wherein the one or more protective covers comprise:
a first cover strip that covers the upper surface of the anode tab; and
a second cover strip that covers the upper surface of the cathode tab.
4. The battery of claim 3 , wherein each of the first cover strip and the second cover strip is 0.1 mm or thinner.
5. The battery of claim 3 , wherein:
the first cover strip extends, in the direction that is orthogonal to the flat outer surface of the wall, from the upper surface of the anode tab to a plane defined by the flat outer surface, such that an upper surface of the first cover strip is coplanar with the flat outer surface; and
the second cover strip extends, in the direction that is orthogonal to the flat outer surface, from the upper surface of the cathode tab to the plane defined by the flat outer surface, such that an upper surface of the second cover strip is coplanar with the flat outer surface.
6. The battery of claim 3 , further comprising:
a third cover strip having a flat surface attached to at least one of:
the upper surface of the first cover strip;
the upper surface of the second cover strip; or
the flat outer surface of the wall.
7. The battery of claim 1 , wherein:
the one or more protective covers comprise:
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; and
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.
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; and
a battery cap over at least a portion of the circuit board,
wherein the battery cap has a top wall that comprises a flat bottom surface and an opposing flat 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 flat top surface of the top wall in a direction that is orthogonal to the flat 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;
one or more protective covers, comprising a protective cover that has a surface that is coplanar with or attached to the flat top surface of the top wall, wherein the protective cover does not cover a surface of the battery cap outside the flat top surface of the top 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 protective cover is a cap wall cover strip attached to the flat top surface of the top wall.
10. The electronic device of claim 9 , wherein the cap wall cover strip covers the one or more cut-out sections.
11. The electronic device of claim 9 , wherein the one or more protective covers further comprise:
a first cover strip attached to the upper surface of the anode tab; and
a second cover strip attached to the upper surface of the cathode tab;
wherein the cap wall cover strip covers the first cover strip and the second cover strip.
12. The electronic device of claim 11 , wherein:
the first cover strip 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 flat top surface of the wall, such that an upper surface of the first cover strip is coplanar with the flat top surface; and
the second cover strip 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 flat top surface, such that an upper surface of the second cover strip is coplanar with the flat top surface.
13. The electronic device of claim 11 , wherein the first cover strip and the second cover strip comprise at least one of:
a polyethylene terephthalate (PET) material; or
a meta-aramid material.
14. The electronic device of claim 11 , wherein the first cover strip comprises tape attached to the upper surface of the anode tab via an adhesive.
15. The electronic device of claim 14 , wherein the first cover strip comprises a thickness dimension ranging from 0.05 mm to 0.1 mm.
16. The electronic device of claim 8 , wherein:
the one or more protective covers comprise:
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; and
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.
17. 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.
18. 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 enclosing 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 a flat outer surface of the wall in a direction that is orthogonal to the flat 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 one or more protective covers, at least a portion of the battery cap, wherein the one or more protective covers comprise a protective cover that has a surface that is coplanar with or attached to the flat outer surface of the wall, wherein the protective cover does not cover a surface of the battery cap outside the flat outer surface of the wall.
19. The method of claim 18 , wherein:
the protective cover is a cap wall cover strip; and
the covering comprises:
attaching a first cover strip to the upper surface of the anode tab;
attaching a second cover strip to the upper surface of the cathode tab; and
attaching the cap wall cover strip to the flat outer surface of the wall, such that the cap wall cover strip covers at least one of the first cover strip or the second cover strip.
20. The method of claim 18 , wherein:
the one or more protective covers comprise:
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; and
the method further comprises:
forming, using a molding process, the battery cap and the one or more protective covers, 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.