# UC San Diego develops fluorine-free binder to simplify battery recycling

> UC San Diego announced on October 9 a fluorine-free, water-soluble binder for lithium-ion batteries. Researchers linked polyacrylic acid and carboxymethyl cellulose with citric acid to form a polymer network that holds electrode layers together.

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- Section: Technology
- Country: United States
- Published: 2026-10-15T22:33:53+00:00
- Updated: 2026-10-15T22:33:53+00:00
- Event / data period: 2026-10-09
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In experiments, soaking electrodes in water dissolved the binder and separated their coatings from metal foils. Recovered materials were regenerated and reused in batteries. The university reported comparable performance; scaling for commercial manufacturing and optimization for different battery chemistries remain ongoing.

## Data

### Source announcement

Methodology: The date identifies publication of the source announcement; this is not an independent performance measurement.

| date | label | description | status |
|---|---|---|---|
| 2026-10-09 | UC San Diego develops fluorine-free binder to simplify battery recycling | UC San Diego announced on October 9 a fluorine-free, water-soluble binder for lithium-ion batteries. Researchers linked polyacrylic acid and carboxymethyl cellulose with citric acid to form a polymer network that holds electrode layers together. | occurred |

Sources: <https://today.ucsd.edu/story/battery-manufacturing-and-recycling-could-go-green-with-this-glue> · Download data: [JSON](https://newsverum.com/api/v1/articles/uc-san-diego-fluorine-free-battery-binder-water-recycling-2026/data/source-announcement?lang=en&format=json) · [CSV](https://newsverum.com/api/v1/articles/uc-san-diego-fluorine-free-battery-binder-water-recycling-2026/data/source-announcement?lang=en&format=csv)

## Sources

- [University of California San Diego](<https://today.ucsd.edu/story/battery-manufacturing-and-recycling-could-go-green-with-this-glue>) (Source checked: 2026-10-15; Published: 2026-10-09)

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