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German Researchers Upcycle Lead Bullets for Solar Panel Efficiency

4/7/2026

Summary

Story summary

Researchers at Germany's Jülich Research Centre transformed nearly 300-year-old toxic lead bullets into a core component for perovskite solar panels.
They upcycle contaminated lead into high-purity lead iodide, essential for efficient solar cells.
The perovskite panels reach 21% efficiency, compared with over 27% for traditional panels.
The process reduces chemical use and wastewater.
Researchers aim to capture 30%-40% of lead waste from industrial cycles to enhance production.

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Story summary

Researchers at Germany's Jülich Research Centre transformed nearly 300-year-old toxic lead bullets into a core component for perovskite solar panels.
They upcycle contaminated lead into high-purity lead iodide, essential for efficient solar cells.
The perovskite panels reach 21% efficiency, compared with over 27% for traditional panels.
The process reduces chemical use and wastewater.
Researchers aim to capture 30%-40% of lead waste from industrial cycles to enhance production.