Journal
ADVANCED MATERIALS
Volume 30, Issue 23, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201800028
Keywords
electrochromic; high energy density; multi-functions; sodium-bromine battery; thermal response
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Funding
- German Research Foundation (DFG) within the Cluster of Excellence
- Center for Advancing Electronics Dresden' (cfaed)
- ERC Grant on 2DMATER
- EU Graphene Flagship
- ESF group
- Hamburg Academy of Sciences and Humanities
- ERC proof-of-concept grant on HIPER-G
- NSFC for Excellent Young Scholars [51722304]
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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//Br-2) battery featuring ultrahigh energy density, electrochromic effect, and fast thermal response is demonstrated. Remarkably, the fabricated Na//Br-2 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.
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