Self-assembling solid Sb electrode enables high-capacity, low-cost Ca-Sb battery.

ABSTRACT: To decarbonize the power grid using renewable technologies without compromising its reliability, low-cost grid-scale energy storage with resilient long-term performance is required. We report a liquid metal battery that achieves high capacity, low electrode costs, and strong cycling performance by replacing the traditional liquid positive electrode with solid particles. The Ca||Sb(s) system described herein achieved 318% higher discharge capacity (715 mAh g^-1 Sb) and 71% lower electrode cost (19.1 $ kWh^-1) than the most competitive liquid metal battery chemistries yet published. The remarkable increase in specific capacity results from the self-assembly of a micro-structured electronically connected Sb network at the positive electrode during cycling while the formati

SUBMITTER: Im S 

PROVIDER: S-EPMC12290061 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature