{"id":"S2025002131","label":"Liquid metal batteries","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2025002131","normalized_label":"liquid metal batteries","broader":["http://id.loc.gov/authorities/subjects/sh85128358"],"aliases":["Molten salt batteries"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2025002131","provider":"lcsh","revision":"70e6e1bac2d9ac15","taxonomy_revision":"f050b5d4780b1289","title":"Liquid metal batteries","url":"/topics/S2025002131","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5476601456484417632","address_version":"morton4x16-v1","coordinates":[0,482,52306,19456],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}