batteries

Mechanics of High-capacity Rechargeable Batteries

Cole Fincher, Yuwei Zhang, Matt Pharr

Department of Mechanical Engineering, Texas A&M University

1. Introduction

Owing to their enormous capacities, Li-S batteries have emerged as a prime candidate for economic and sustainable energy storage. Still, potential mechanics-based issues exist that must be addressed: lithiation of sulfur produces an enormous volume expansion (~80%). In other high capacity electrodes, large expansions generate considerable stresses that can lead to mechanical damage and capacity fading.