Controlling the intercalation chemistry to design high-performance dual-salt hybrid rechargeable batteries

Jae Hyun Cho, Muratahan Aykol, Soo Kim, Jung Hoon Ha, C. Wolverton, Kyung Yoon Chung, Kwang Bum Kim, Byung Won Cho

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

We have conducted extensive theoretical and experimental investigations to unravel the origin of the electrochemical properties of hybrid Mg2+/Li+ rechargeable batteries at the atomistic and macroscopic levels. By revealing the thermodynamics of Mg2+ and Li+ co-insertion into the Mo6S8 cathode host using density functional theory calculations, we show that there is a threshold Li+ activity for the pristine Mo6S8 cathode to prefer lithiation instead of magnesiation. By precisely controlling the insertion chemistry using a dual-salt electrolyte, we have enabled ultrafast discharge of our battery by achieving 93.6% capacity retention at 20 C and 87.5% at 30 C, respectively, at room temperature.

Original languageEnglish
Pages (from-to)16116-16119
Number of pages4
JournalJournal of the American Chemical Society
Volume136
Issue number46
DOIs
Publication statusPublished - 2014 Nov 19

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Secondary batteries
Intercalation
Electrodes
Cathodes
Salts
Electrochemical properties
Thermodynamics
Electrolytes
Density functional theory
Temperature

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Cho, J. H., Aykol, M., Kim, S., Ha, J. H., Wolverton, C., Chung, K. Y., ... Cho, B. W. (2014). Controlling the intercalation chemistry to design high-performance dual-salt hybrid rechargeable batteries. Journal of the American Chemical Society, 136(46), 16116-16119. https://doi.org/10.1021/ja508463z
Cho, Jae Hyun ; Aykol, Muratahan ; Kim, Soo ; Ha, Jung Hoon ; Wolverton, C. ; Chung, Kyung Yoon ; Kim, Kwang Bum ; Cho, Byung Won. / Controlling the intercalation chemistry to design high-performance dual-salt hybrid rechargeable batteries. In: Journal of the American Chemical Society. 2014 ; Vol. 136, No. 46. pp. 16116-16119.
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Controlling the intercalation chemistry to design high-performance dual-salt hybrid rechargeable batteries. / Cho, Jae Hyun; Aykol, Muratahan; Kim, Soo; Ha, Jung Hoon; Wolverton, C.; Chung, Kyung Yoon; Kim, Kwang Bum; Cho, Byung Won.

In: Journal of the American Chemical Society, Vol. 136, No. 46, 19.11.2014, p. 16116-16119.

Research output: Contribution to journalArticle

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