Battery assembly
A battery assembly comprising: a first pouch cell for a battery, comprising a flexible surface to allow expansion and contraction of the first pouch cell a cooling plate having: a cell contact area for providing thermal contact between the cooling plate and the flexible surface of the first pouch cell; and an exchange contact area for providing thermal contact with a heat exchanger; a resilient interposer arranged to hold the cell contact area in thermal contact with the flexible surface of the first pouch cell in the event of expansion and/or contraction of the first pouch cell.
1. A battery assembly comprising:
a first pouch cell for a battery, comprising a flexible surface to allow expansion and contraction of the first pouch cell
a cooling plate having:
a cell contact area for providing thermal contact between the cooling plate and the flexible surface of the first pouch cell; and
an exchange contact area for providing thermal contact with a heat exchanger;
a resilient interposer arranged to hold the cell contact area in thermal contact with the flexible surface of the first pouch cell in the event of expansion and/or contraction of the first pouch cell; and
a first skin plate between the cell contact area and the flexible surface of the first pouch cell, wherein the first skin plate is thermally conductive.
2. A battery assembly comprising:
a first pouch cell for a battery, comprising a flexible surface to allow expansion and contraction of the first pouch cell
a cooling plate having:
a cell contact area for providing thermal contact between the cooling plate and the flexible surface of the first pouch cell; and
an exchange contact area for providing thermal contact with a heat exchanger;
a resilient interposer arranged to hold the cell contact area in thermal contact with the flexible surface of the first pouch cell in the event of expansion and/or contraction of a first pouch cell; and
wherein the resilient interposer is arranged to bias the cell contact area against the first skin plate.
3. A battery assembly comprising:
a plurality of pouch cells, each comprising a flexible surface to allow expansion and contraction of the pouch cells;
a heat exchange panel, for securing to a holder to enclose the battery assembly;
a plurality of cooling plates each having:
a cell contact area for providing thermal contact with the flexible surface; and
an exchange contact area transverse to the cell contact area and configured for providing thermal contact with the heat exchange panel;
wherein each cooling plate is arranged so its cell contact area is in thermal contact with the flexible surface of a respective corresponding one of the plurality of pouch cells;
the battery assembly further comprising
a plurality of securement bars, each bar holding the exchange contact area of a corresponding one of the plurality of cooling plates to the heat exchange panel;
wherein the heat exchange panel provides a lid of the holder and the lid and the securement bars together hold the battery assembly suspended in the holder.