A Dual-Stimuli-Responsive Sodium-Bromine Battery with Ultrahigh Energy Density.
basic_science · Level V
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- Record sourced from PubMed, PMID 29707829.
- Also identified by DOI 10.1002/adma.201800028.
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Abstract
Stimuli-responsive energy storage devices have emerged for the fast-growing popularity of intelligent electronics. However, all previously reported stimuli-responsive energy storage devices have rather low energy densities (<250 Wh kg<sup>-1</sup> ) and single stimuli-response, which seriously limit their application scopes in intelligent electronics. Herein, a dual-stimuli-responsive sodium-bromine (Na//Br<sub>2</sub> ) battery featuring ultrahigh energy density, electrochromic effect, and fast thermal response is demonstrated. Remarkably, the fabricated Na//Br<sub>2</sub> battery exhibits a large operating voltage of 3.3 V and an energy density up to 760 Wh kg<sup>-1</sup> , which outperforms those for the state-of-the-art stimuli-responsive electrochemical energy storage devices. This work offers a promising approach for designing multi-stimuli-responsive and high-energy rechargeable batteries without sacrificing the electrochemical performance.