A Dual-Stimuli-Responsive Sodium-Bromine Battery with Ultrahigh Energy Density

Faxing Wang; Hongliu Yang; Jian Zhang; Panpan Zhang; Gang Wang; Xiaodong Zhuang; Gianaurelio Cuniberti; Xinliang Feng

doi:10.1002/adma.201800028

A Dual-Stimuli-Responsive Sodium-Bromine Battery with Ultrahigh Energy Density

Adv Mater. 2018 Jun;30(23):e1800028. doi: 10.1002/adma.201800028. Epub 2018 Apr 30.

Authors

Faxing Wang^{1

2}, Hongliu Yang^{2

3

4}, Jian Zhang^{1

2}, Panpan Zhang^{1

2}, Gang Wang^{1

2}, Xiaodong Zhuang^{1

2

5}, Gianaurelio Cuniberti^{2

3

4}, Xinliang Feng^{1

2}

Affiliations

¹ Chair of Molecular Functional Materials, School of Science, Technische Universität Dresden, Mommsenstrasse 4, 01069, Dresden, Germany.
² Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062, Dresden, Germany.
³ Institute for Materials Science and Max Bergmann Center of Biomaterials, Technische Universität Dresden, 01062, Dresden, Germany.
⁴ Dresden Center for Computational Materials Science, Technische Universität Dresden, 01062, Dresden, Germany.
⁵ The State Key Laboratory of Metal Matrix Composites & Shanghai Key Laboratory of Electrical Insulation and Thermal Ageing, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Dongchuan Road 800, 200240, Shanghai, China.

PMID: 29707829
DOI: 10.1002/adma.201800028

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^-1 ) and single stimuli-response, which seriously limit their application scopes in intelligent electronics. Herein, a dual-stimuli-responsive sodium-bromine (Na//Br₂ ) battery featuring ultrahigh energy density, electrochromic effect, and fast thermal response is demonstrated. Remarkably, the fabricated Na//Br₂ battery exhibits a large operating voltage of 3.3 V and an energy density up to 760 Wh kg^-1 , 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.

Keywords: electrochromic; high energy density; multi-functions; sodium-bromine battery; thermal response.