Fluorine-free conducting polymer binders for high-performance lithium-ion batteries

Research question

Lithium-ion batteries have revolutionized sustainable electrification with their remarkable energy density and efficiency, reshaping sectors like transportation, energy, and consumer electronics. However, the prevalent use of poly(vinylidene fluoride) (PVDF) as a binder material in almost all lithium-ion battery cathodes faces environmental challenges.

Sustainability aspects

This research proposes developing fluorine-free conducting polymer binders as alternatives to PVDF. These binders aim to balance conductivity, stability, and cost-effectiveness. The objectives include 1) developing fluorine-free conducting polymer binders with high electrical and ionic conductivities, high Young’s modulus, low swelling, and high thermal stability; 2) creating cathode and anode slurry composites; and 3) devising scalable synthesis protocols using abundant resources. The anticipated outcomes include highly efficient and stable lithium-ion batteries suitable for widespread electronics use. The project addresses key sustainability goals by promoting clean energy, responsible material consumption, and circular economy principles in the development and utilization of lithium-ion batteries.