Optical sensors for operando stress monitoring in lithium-based batteries containing solid-state or liquid electrolytes.

ABSTRACT: The study of chemo-mechanical stress taking place in the electrodes of a battery during cycling is of paramount importance to extend the lifetime of the device. This aspect is particularly relevant for all-solid-state batteries where the stress can be transmitted across the device due to the stiff nature of the solid electrolyte. However, stress monitoring generally relies on sensors located outside of the battery, therefore providing information only at device level and failing to detect local changes. Here, we report a method to investigate the chemo-mechanical stress occurring at both positive and negative electrodes and at the electrode/electrolyte interface during battery operation. To such effect, optical fiber Bragg grating sensors were embedded inside coin and Swagelok cells contai

SUBMITTER: Albero Blanquer L 

PROVIDER: S-EPMC8894478 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature