3 results about "Cell fixing" patented technology

A battery pack according to an embodiment of this invention may comprise: a plurality of battery cells including electrode terminals on one side of a case; a cell fixing plate to which the plurality of battery cells are coupled; and a busbar assembly electrically connected to the plurality of battery cells, wherein the cell fixing plate may be arranged under the plurality of battery cells, and the busbar assembly may be arranged under the cell fixing plate.

Provided in the present invention is a compact and lightweight thermal-runaway propagation suppression structure for a lithium-ion battery module. The structure comprises: thermal insulation sleeves, which each cover a battery cell; a high-specific-heat-capacity thermally-conductive frame, in which all battery cells and thermal insulation sleeves are embedded; thermal insulation plates, which are each placed at the top of the high-specific-heat-capacity thermally-conductive frame; and cooling measures, which are arranged on side faces of the high-specific-heat-capacity thermally-conductive frame. The overall lightweight structure in the present invention enables all the battery cells to share one heat dissipation element, thereby increasing the utilization rate of the heat dissipation element; moreover, the structure in the present invention facilitates the uniform heating of each surface of each battery cell in the module, makes full use of the thermal mass of an individual battery cell, and allows all the battery cells in the module to participate in heat sharing. In addition, the frame achieves the function of fixing the battery cells, and no additional battery-cell fixing apparatus is required for assembling the battery module. Therefore, the present invention is conducive to simplifying the structure of the module, providing a thermal-runaway propagation suppression structure with a smaller volume, and reducing the loss of energy density of the battery module caused by safety measures.

A battery module according to an embodiment of the present invention may include a case, a battery cell assembly accommodated inside the case and comprising a plurality of battery cells, a cell holder disposed inside the case and including a plurality of cell fixing holes into which the battery cells are inserted, a foam portion disposed on one side of the cell holder, an immersion portion disposed on the other side of the cell holder, and a sealing member provided between the cell holder and the battery cell assembly. Here, the sealing member may be disposed between the foam portion and the immersion portion. In addition, one ends of the battery cells may be positioned in the foam portion, and the other ends of the battery cells may be positioned in the immersion portion.