SPACER MATERIAL

To provide a spacer material capable of suppressing compression fracture of an elastic body.SOLUTION: A spacer material 5 disposed between battery cells 1, 2 adjacent to each other includes a first member 6 and a second member 7 having a higher shaft rigidity in the thickness direction than the first member 6. The first member 6 protrudes, with respect to the second member 7, in a direction where the battery cells 1, 2 are disposed. When the battery cells 1, 2 press the spacer material 5, if a pressing amount is less than a predetermined value, only the first member 6 abuts on the battery cells 1, 2, while if a pressing amount is equal to or more than the predetermined value, the first member 6 and the second member 7 abut on the battery cells 1, 2.SELECTED DRAWING: Figure 2 【課題】弾性体の圧縮破壊を抑制することが可能となるスペーサ材を提供する。【解決手段】スペーサ材５は、隣り合う電池セル１，２間に配置されるスペーサ材５であって、第１部材６と、厚み方向における軸剛性が第１部材６よりも高い第２部材７と、を備え、第１部材６は、第２部材７に対して電池セル１，２が配置される方向に突出しており、電池セル１，２がスペーサ材５を押圧する際、押圧量が所定値未満の場合は第１部材６のみが電池セル１，２に当接し、押圧量が所定値以上の場合は第１部材６および第２部材７が電池セル１，２に当接する。【選択図】図２