> For the complete documentation index, see [llms.txt](https://docs.materialsproject.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.materialsproject.org/apps/explorer-apps/battery-explorer/background.md).

# Background

## Components

### Search

The Battery Explorer app, just like the Materials Explorer app, provides a search bar where one can search by chemical formula (eg. "CoO2") or by chemical system (eg. "Fe-P-O"). The user can also click on the periodic table to add elements to the search.

### Advanced Options

On the left tab on the app, users can choose to filter query results by composition and working ion, as well as battery properties such as average voltage or capacity.

![](/files/IjutXQJ1zRbw6QbQnhQX)

![](/files/o3upvhVdFO8TM1f8Xw1N)

### Visualization Viewer

The battery material details page provides a visualization for the host material of the battery.

### Data Table

The search result data table provides info on each entry, including formula, volume change, capacity and energy, etc.

## Thermodynamic data


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