BUFFER MATERIAL FOR BATTERY

To realize a buffer material for a battery, which is adopted to sufficiently absorb a displacement amount while maintaining a sufficient reaction force.SOLUTION: A buffer material 1 for a battery comprises: a plurality of contact parts 2 each of which has an opposite surface 2a facing a rigid body, has a U-shape concave in a state of a pre-compression, and contacts a rigid body along a surface of the rigid body when compressed; and a plurality of column parts 3 that connects a contact part 2 contacted to one rigid body and a contact part 2 contacted to the other rigid body, and is deformed in an S-curved shape when compressed. The buffer material 1 for the battery has a continuous M-shaped construction formed by alternately continuing the plurality of contact parts 2 and the plurality of column parts 3. Two adjacent column parts 3 form a hollow space S between the two column parts 3 in a state of a pre-compression. Deformation of each column part 3 in an aspect where a part compressed and curved in an S-shape is housed in the space S reduces the hollow space S and the buffer material 1 for the battery is reduced in a thickness direction.SELECTED DRAWING: Figure 4 【課題】十分な反力を維持しつつ、変位量を十分に吸収するのに適したバッテリー用緩衝材を実現する。【解決手段】剛体に対向する対向面２ａであって、圧縮前の状態ではＵ字状に凹んだ形状を有し圧縮力を受けて剛体の面に沿って剛体に当接する対向面２ａをそれぞれ有する複数の当接部２と、一方の剛体に当接する当接部２と他方の剛体に当接する当接部２とを接続し、圧縮力を受けてＳ字状に湾曲した形状に変形する複数の支柱部３とを備える。バッテリー用緩衝材１は、複数の当接部２と複数の支柱部３とが交互に連なることによってＭ字形状の連続からなる構成を有し、隣接する２つの支柱部３は、圧縮前の状態では、２つの支柱部３の間に中空の空間Ｓを形成するものであり、圧縮力を受けてＳ字状に湾曲した部分が中空の空間Ｓに収容される態様で支柱部３が変形することで中空の空間Ｓが減じて厚さ方向についてバッテリー用緩衝材１が縮小する。【選択図】図４