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November 2015

Controlled Porous Membranes for Better Batteries

Scientific Achievement

Molecular Foundry staff and users have combined to develop membranes for lithium-sulfur batteries made from polymers of intrinsic microporosity (PIMs) that are 500 times more effective than conventional membranes.

Significance and Impact

Lithium-sulfur batteries are well poised to provide high-density, long-term and low-cost electrochemical energy storage but current designs have limited efficiency and lifetimes due to the uncontrolled migration of soluble sulfur species through the membrane that separates the electrodes.

Research Details

C. Li, A. L. Ward, S. E. Doris, T. A. Pascal, D. Prendergast & B. A. Helms. Nano Lett. 2015 15, 9.