Minimal architecture zinc–bromine battery for low cost electrochemical energy storage

Shaurjo Biswas; Aoi Senju; Robert Mohr; Thomas Hodson; Nivetha Karthikeyan; Kevin W. Knehr; Andrew G. Hsieh; Xiaofang Yang; Bruce E. Koel; Daniel A. Steingart

doi:10.1039/C6EE02782B

Minimal architecture zinc–bromine battery for low cost electrochemical energy storage†

Shaurjo Biswas,

^a Aoi Senju,^b Robert Mohr,^a Thomas Hodson,^a Nivetha Karthikeyan,^a Kevin W. Knehr,

^a Andrew G. Hsieh,^a Xiaofang Yang,^b Bruce E. Koel

^b and Daniel A. Steingart ‡*^ab

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* Corresponding authors

^a Department of Mechanical and Aerospace Engineering & the Andlinger Center for Energy and The Environment, Princeton University, NJ, USA

^b Department of Chemical and Biological Engineering, Princeton University, NJ, USA

Abstract

We demonstrate a minimal-architecture zinc–bromine battery that eliminates the expensive components in traditional systems. The result is a single-chamber, membrane-free design that operates stably with >90% coulombic and >60% energy efficiencies for over 1000 cycles. It can achieve nearly 9 W h L⁻¹ with a cost of <$100 per kWh at-scale.

Energy & Environmental Science

Minimal architecture zinc–bromine battery for low cost electrochemical energy storage†

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