Researchers make a fluid battery that can take on any shape

WWSC researchers at Linköping University have developed a fluid battery that can take on any shape! Using lignin and conjugated polymers, the researchers created a soft, stretchable battery that can be recharged and discharged more than 500 times — while maintaining performance.
Photographer: Thor Balkhed, LiU
Photographer: Thor Balkhed, LiU

The battery can be charged and discharged more than 500 times without significant loss in capacity, making it a promising solution for future applications in wearable electronics, soft robotics, and implantable medical devices—areas where rigid batteries are unsuitable.

“We’re the first to show that capacity is independent of rigidity,” says Aiman Rahmanudin, assistant professor at Linköping University.

Red more at liu.se

The results have been published in Science Advances.

Make it flow from solid to liquid: Redox-active electrofluid for intrinsically stretchable batteries, Mohsen Mohammadi, Saeed Mardi*, Jaywant Phopase, Filippa Wentz, Jibin J. Samuel, Ujwala Ail, Magnus Berggren, Reverant Crispin, Klas Tybrandt*, Aiman Rahmanudin*, Science Advances (2025), published online on 11 April 2025. DOI: 10.1126/sciadv.adr9010

WWSC is a joint research center between KTH Royal Institute of Technology, Chalmers University of Technology and Linköping University. The base is a donation from the Knut and Alice Wallenberg Foundation. The Swedish industry is supporting WWSC via the platform Treesearch.

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