Flexible Battery Matrix for a Conformal Wearable Battery

A system comprising:

• a plurality of battery cell modules comprising a first battery cell module and a second battery cell module, wherein each battery cell module of the plurality of battery cell modules comprises:
• a lithium-ion pouch cell comprising a cathode tab and an anode tab;
• and
• an attenuating member affixed to an exterior surface of the lithium-ion pouch cell;
• and
• a flexible printed circuit board assembly (PCBA) comprising:
• a plurality of battery cell connection sections disposed in a grid-like pattern along a first surface of the flexible PCBA;
• and
• a plurality of electrical connection pad pairs comprising a first pad pair and a second pad pair, wherein each pad pair of the plurality of electrical connection pad pairs is associated with a corresponding battery cell connection section, is positioned parallel to an edge of the flexible PCBA, and is positioned parallel to a corresponding flexible region of the flexible PCBA, wherein each of the plurality of battery cell modules is electrically attached to the flexible PCBA on a second surface of the flexible PCBA in a grid-like pattern via a corresponding pad pair, wherein the second surface is opposite the first surface and wherein the first electrical connection pad pair is linearly aligned with the second electrical connection pad pair;
• wherein the flexible PCBA comprises a pair of cutouts through which a first cathode tab and a first anode tab of the first battery cell module extend, wherein the first cathode tab and the first anode tab are electrically connected to the first pad pair;
• and
• wherein the flexible PCBA comprises an edge around which a second cathode tab and a second anode tab of the second battery cell module wrap, wherein the second cathode tab and the second anode tab are electrically connected to the second pad pair.

A flexible printed circuit board assembly (PCBA) comprising:

• a plurality of battery modules physically affixed to the flexible PCBA, wherein the plurality of battery modules is arranged in a grid-like pattern, wherein a first battery module is physically affixed to the flexible PCBA adjacent to a second battery module and wherein each battery module of the plurality of battery modules comprises:
• a lithium-ion pouch cell;
• and
• an attenuating member affixed to an exterior surface of the lithium-ion pouch cell;
• a bend axis near an approximate mid-point of the flexible PCBA, wherein bending the flexible PCBA along the bend axis results in a folded configuration of the flexible PCBA;
• wherein, when the flexible PCBA is in the folded configuration, the plurality of battery modules is disposed in a flexible three-dimensional grid-like pattern on an exterior surface of the folded flexible PCBA,
• wherein the plurality of battery modules is electrically connected to the flexible PCBA via a plurality of electrical connection pads disposed parallel and adjacent to a flexible section between adjacent rows of battery modules of the grid-like pattern, wherein the electrical connection pads are on an interior surface of the folded flexible PCBA, and wherein each pad pair of the plurality of electrical connection pads is positioned parallel to an edge of the flexible PCBA and is associated with a corresponding physical connection section;
• and
• wherein first electrical connection tabs of the first battery module extend through a pair of cutouts in the flexible PCBA and wherein the first electrical connection tabs are electrically connected to a first pair of electrical connection pads of the plurality of electrical connection pads;
• and
• wherein second electrical connection tabs of the second battery module wrap around an edge of the flexible PCBA and wherein the second electrical connection tabs are electrically connected to a second pair of electrical connection pads of the plurality of electrical connection pads.