公开(公告)号：US20250118851A1

公开(公告)日：2025-04-10

申请号：US18483201

申请日：2023-10-09

Applicant: GM Global Technology Operations LLC

Inventor： Daniel Philip Pothen ,  Paul Buchholz ,  Tejas R. Bhavsar ,  Rajesh K. Bhagirath

IPC: H01M50/291 ,  B60L50/64 ,  H01M50/209 ,  H01M50/242 ,  H01M50/249

Abstract: A battery assembly includes a first battery cell including a first surface and a first surface section. The first surface is opposite the second surface. A second battery cell includes a second surface and a second surface section. The second surface section is opposite of the second surface. A tunable spring member is provided between the first battery cell and the second battery cell. The tunable spring member includes a first spring surface facing the first surface section and a second spring surface facing the second surface. The tunable spring member includes a plurality of energy absorption zones disposed across the first spring surface and the second spring surface. A first portion of the plurality of energy absorption zones establish a first spring rate, and a second portion of the plurality of energy absorption zones establish a second spring rate that is distinct from the first spring rate.