# Flow batteries and Sulphuric acid

Their prices have moved together.

Source page: https://www.materialinsights.org/links/flow-batteries-and-sulphuric-acid/

[Flow batteries](https://www.materialinsights.org/energy/e_flow_batt/) (energy) and [Sulphuric acid](https://www.materialinsights.org/chemicals/sulphuric_acid/) (chemical): 1 relationship.

## How they are linked

### 1. Price link: electrolyte base

*Cost and price · Moderate · Both ways*

Vanadium is dissolved in sulphuric acid to make the electrolyte. Acid is cheap, so it adds little cost, and the acid index shows no link to the battery proxy, with monthly moves at -0.01.

- **-0.01** monthly change correlation
- **0.39** 12-month change correlation
- **0.30** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.