Multicavity battery module
View Patent ↗A battery module includes a battery module housing that defines an interior space. The battery module housing includes at least one interior wall that segregates the interior space into at least two cavities. The battery module housing and the at least one interior wall are formed of a flexible laminate material, and an electrochemical cell is disposed in one of the at least two cavities. The cell may include a housing formed of a flexible laminate material, or alternatively may be housing-free.
1. A battery module, the battery module including a battery module housing and an electrochemical cell disposed in the battery module housing,
the battery module housing including
a first exterior wail comprising a first sheet of a first flexible laminate material,
a second exterior wall comprising a second sheet of the first flexible laminate material, the second exterior wall, together with the first exterior wall, defining an interior space therebetween, and
at least one interior wall that segregates the interior space into at least two cavities, the at least one interior wall comprising a third sheet of the first flexible laminate material, the third sheet being disposed between the first sheet and the second sheet in a stacked arrangement of the first sheet, the second sheet and the third sheet, wherein
the electrochemical cell is disposed in one of the at least two cavities, the electrochemical cell comprising a cell housing that is formed of a second flexible laminate material, and an electrode assembly that is disposed inside the cell housing, and
a peripheral edge of the first exterior wall, a peripheral edge of the second exterior wall, and a peripheral edge of the at least one interior wall are joined together at a single, common seal joint.
2. The battery module of claim 1 , wherein the at least one interior wall is arranged in parallel to both the first exterior wall and the second exterior wall.
3. The battery module of claim 1 , wherein the electrochemical cell is one of a plurality of electrochemical cells, and each cavity of the at least two cavities includes, at most, a single one of the electrochemical cells.
4. The battery module of claim 1 , wherein a peripheral edge of the battery module housing defines a non-rectangular polygonal shape when the battery module is viewed in a direction perpendicular to the at least one interior wall.
5. The battery module of claim 1 , wherein a peripheral edge of the battery module housing defines an irregular curvilinear shape when the battery module is viewed in a direction perpendicular to the at least one interior wall.
6. The battery module of claim 1 , wherein the electrode assembly includes a single positive electrode, a single negative electrode, and a separator disposed between the positive electrode and the negative electrode.
7. The battery module of claim 6 , wherein each of the positive electrode, the negative electrode, and the separator have the form of a plate, and the positive electrode, the separator and the negative electrode are arranged in a stack such that the separator is sandwiched between the positive electrode and the negative electrode.
8. A battery module for receiving electrochemical cells, the battery module including a battery module housing, and the electrochemical cells disposed in the battery module housing,
the battery module housing including
a first exterior wall comprising a first sheet of a first flexible laminate material,
a second exterior wall comprising a second sheet of the first flexible laminate material, the second exterior wall, together with the first exterior wall, defining an interior space therebetween, and
at least one interior wall that segregates the interior space into at least two cavities, the at least one interior wall comprising a third sheet of the first flexible laminate material, the third sheet being disposed between the first sheet and the second sheet in a stacked arrangement of the first sheet, the second sheet and the third sheet,
wherein
each cavity of the at least two cavities is shaped and dimensioned to accommodate, at most, a single one of the electrochemical cells,
each cavity of the at least two cavities includes, at most, a single one of the electrochemical cells, each electrochemical cell comprising a cell housing that is formed of a second flexible laminate material, and an electrode assembly that is disposed inside the cell housing, and
a peripheral edge of the first exterior wall, a peripheral edge of the second exterior wall, and a peripheral edge of the at least one interior wall are joined together at a single, common seal joint.
9. The battery module of claim 8 , wherein the at least one interior wall is arranged in parallel to both the first exterior wall and the second exterior wall.
10. The battery module of claim 8 , wherein a peripheral edge of the battery module housing defines a non-rectangular polygonal shape when the battery module is viewed in a direction perpendicular to the at least one interior wall.
11. The battery module of claim 8 , wherein a peripheral edge of the battery module housing defines an irregular curvilinear shape when the battery module is viewed in a direction perpendicular to the at least one interior wall.
12. The battery module of claim 8 , wherein the electrode assembly includes a single positive electrode, a single negative electrode, and a separator disposed between the positive electrode and the negative electrode.
13. The battery module of claim 12 , wherein each of the positive electrode, the negative electrode, and the separator have the form of a plate, and the positive electrode, the separator and the negative electrode are arranged in a stack such that the separator is sandwiched between the positive electrode and the negative electrode.