Question: What's the production if the technology is Sodium-sulfur batteries and Yes to toxic materials?
SQL: SELECT "In production" FROM "2-1646838-1" WHERE "Toxic Materials" = 'Yes' AND "Technology" = 'Sodium-sulfur batteries';

Question: What are the moving parts of Lead-Acid?
SQL: SELECT "Moving Parts" FROM "2-1646838-1" WHERE "Technology" = 'Lead-Acid';

Question: What's the room temperature with No toxic materials and No ln production?
SQL: SELECT "Room Temperature" FROM "2-1646838-1" WHERE "In production" = 'No' AND "Toxic Materials" = 'No';

Question: What's the techNology when there are No moving parts but Yes to toxic materials?
SQL: SELECT "Technology" FROM "2-1646838-1" WHERE "Toxic Materials" = 'Yes' AND "Moving Parts" = 'No';