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Comment
. 2014 Mar 4;111(9):3205-6.
doi: 10.1073/pnas.1401033111. Epub 2014 Feb 18.

Nonflammable electrolyte enhances battery safety

Liangbing Hu  1 , Kang Xu
Affiliations
Comment

Nonflammable electrolyte enhances battery safety

Liangbing Hu et al. Proc Natl Acad Sci U S A. .
No abstract available

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Fig. 1.
Fig. 1.
Schematic comparison between carbonate-based and PFPE-based electrolytes. The former, used in the state-of-art Li-ion batteries, are intrinsically flammable and characterized by low Li+ transference number. The latter, developed by Wong et al. (1), is nonflammable and promotes Li+ transport.
Fig. 2.
Fig. 2.
(A) In conventional nonaqueous electrolytes, Li+ is tightly solvated and slowed down in its migration by coordinating carbonate molecules, resulting in low t+. (B) In electrolytes based on highly fluorinated solvents, anion TFSI is solvated instead, thus freeing Li+ as the conducting species and resulting in almost unity t+.
See this image and copyright information in PMC

Comment on

References

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    1. Xu K. Nonaqueous liquid electrolytes for lithium-based rechargeable batteries. Chem Rev. 2004;104(10):4303–4417. - PubMed
    1. Hu Z, et al. Optically transparent, amphiphilic networks based on blends of perfluoropolyethers and poly(ethylene glycol) J Am Chem Soc. 2008;130(43):14244–14252. - PubMed
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