Planar Web and Battery Module Including Same

原文（中国語）

A planar web includes a plurality of hollow tubes. Each hollow tube has an octagonal cross section including eight walls. The eight walls include a first surface wall and a second surface wall where each surface wall has a length A; two side walls perpendicular to the surface walls were each side wall having a length B; and four connecting walls. 0.2≤B/A≤1. Adjacent side walls of adjacent hollow tubes are bonded together to form the planar web having a first planar surface comprising the first surface walls and a second planar surface comprising the second surface walls. Each connecting wall independently connects one of the surface walls to one of the side walls. Each wall has a thickness T and each hollow tube has a height H measured from the first surface wall to the second surface wall. 0.02≤T/H≤0.25.