Shaped electrode for arresting electrode movement
A battery may include an enclosure that defines an interior volume, an electrode cell disposed within the interior volume, and a pair of retaining elements. The electrode cell may include a pair of notches formed therein. The pair of retaining elements may be disposed within volumes defined by the pair of notches. The pair of retaining elements may be connected to the enclosure and may be configured to engage with a respective notch of the pair of notches to arrest movement of the electrode cell with respect to the enclosure.
1 . A battery, comprising:
an enclosure that defines an interior volume;
an electrode cell disposed within the interior volume, wherein a pair of notches is formed in the electrode cell; and
a pair of movement retaining elements, wherein each movement retaining element of the pair of movement retaining elements is disposed within and extends outward from a respective notch of the pair of notches, wherein each movement retaining element of the pair of movement retaining elements is physically connected to the enclosure, and each movement retaining element of the pair of movement retaining elements is configured to physically engage with the respective notch of the pair of notches to arrest movement of the electrode cell with respect to the enclosure.
2 . The battery of claim 1 , wherein each movement retaining element comprises a first end and a second end, and wherein each first end is physically connected to a first surface of the enclosure and each second end is physically connected to a second surface of the enclosure.
3 . The battery of claim 1 , wherein each movement retaining element of the pair of movement retaining elements is formed from at least one of glue, elastomeric material, or tape.
4 . The battery of claim 1 , wherein the electrode cell comprises an electrode stack comprising a plurality of electrode layers, and wherein the pair of notches extends through the plurality of electrode layers.
5 . The battery of claim 1 , wherein a second pair of notches is formed in the electrode cell, and wherein the battery further comprises a second pair of movement retaining elements disposed within and extending outwards from a respective notch of the second pair of notches.
6 . The battery of claim 1 , further comprising an adhesive layer that connects an exterior surface of the electrode cell to an interior surface of the enclosure.
7 . The battery of claim 1 , wherein the pair of notches is characterized by a rectangular shape or an arcuate shape.
8 . A system, comprising:
an electrode cell comprising a plurality of electrode layers, wherein a pair of electrode notches is formed in the electrode cell, wherein each electrode notch of the pair of electrode notches extends through the plurality of electrode layers;
a pair of movement retaining elements configured to retain the electrode cell via physical engagement with the pair of electrode notches;
a first electrode tab electrically connected to the electrode cell; and
a second electrode tab electrically connected to the electrode cell.
9 . The system of claim 8 , further comprising an enclosure that defines an interior volume configured to retain the electrode cell.
10 . The system of claim 9 , wherein the first electrode tab and the second electrode tab extend from first locations within the enclosure to second locations outside of the enclosure.
11 . The system of claim 9 , wherein each movement retaining element of the pair of movement retaining elements is disposed within and extends outward from a respective electrode notch of the pair of electrode notches and is connected to the enclosure.
12 . The system of claim 9 , wherein each movement retaining element of the pair of movement retaining elements is configured to engage with a respective electrode notch of the pair of electrode notches to arrest movement of the electrode cell with respect to the enclosure.
13 . The system of claim 9 , wherein each movement retaining element comprises a first end and a second end, and wherein each first end is physically connected to a first surface of the enclosure and each second end is physically connected to a second surface of the enclosure, and wherein the first surface comprises a first interior surface of the enclosure and the second surface comprises a second interior surface of the enclosure, and wherein the first surface is positioned opposite the second surface.
14 . A battery, comprising:
an enclosure defining an interior volume and characterized by an enclosure perimeter;
an electrode stack comprising a plurality of electrode layers disposed within the interior volume and characterized by a stack perimeter, wherein an electrode protrusion is formed in the electrode stack at the stack perimeter and defines an electrode protrusion volume; and
a movement retaining element occupying a portion of the electrode protrusion volume adjacent the enclosure perimeter and configured to physically arrest movement of the electrode stack relative to the enclosure.
15 . The battery of claim 14 , wherein the electrode protrusion comprises a notch that having a lateral width that extends from the stack perimeter towards a central portion of the electrode stack and depth that extends through each electrode layer of the plurality of electrode layers.
16 . The battery of claim 14 , wherein the movement retaining element is disposed within and extends outward from the electrode protrusion volume.
17 . The battery of claim 1 , wherein the pair of notches comprises at least two notches, with a first notch formed at a first side of the electrode cell and a second notch formed at a second side of the electrode cell that is opposite the first side.
18 . The battery of claim 1 , wherein the pair of movement retaining elements are separate and distinct structures from the enclosure and the electrode cell.
19 . The battery of claim 1 , wherein each movement retaining element is disposed entirely within the interior volume of the enclosure.
20 . The battery of claim 1 , wherein each notch of the pair of notches is defined by a notch volume, and wherein each movement retaining element of the pair of movement retaining elements extends through the notch volume.