# Aluminium and Capacitors and supercapacitors

Their prices have moved together.

Source page: https://www.materialinsights.org/links/aluminium-and-capacitors-and-supercapacitors/

[Aluminium](https://www.materialinsights.org/commodities/aluminum/) (commodity) and [Capacitors and supercapacitors](https://www.materialinsights.org/energy/e_supercaps/) (energy): 1 relationship.

## How they are linked

### 1. Price link: foil and casing

*Cost and price · Weak · Both ways*

Aluminium foil collects current from the electrodes and aluminium cans hold the cells. The link barely shows in the data: monthly moves correlate at -0.05, because the proxy is dominated by small circuit capacitors priced by contract and factory scale rather than metal.

- **-0.05** monthly change correlation
- **-0.10** 12-month change correlation
- **0.68** fitted elasticity

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