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Title: Development of Safe and Sustainable Dual-Ion Batteries Through Hybrid Aqueous/Nonaqueous Electrolytes

Abstract

In this study, a new dual-ion battery (DIB) concept based on an aqueous/non-aqueous electrolyte is reported, combining high safety in the form of a nonflammable water-in-salt electrolyte, a high cathodic stability by forming a protective interphase on the negative electrode (non-aqueous solvent), and improved sustainability by using a graphite-based positive electrode material. Far beyond the anodic stability limit of water, the formation of a stage-2 acceptor-type graphite intercalation compound (GIC) of bis(trifluoromethanesulfonyl) imide (TFSI) anions from an aqueous-based electrolyte is achieved for the first time, as confirmed by ex-situ X-ray diffraction. The choice of negative electrode material shows a huge impact on the performance of the DIB cell chemistry, i.e., discharge capacities up to 40 mAh g–1 are achieved even at a high specific current of 200 mA g–1. In particular, lithium titanium phosphate (LiTi2(PO4)3; LTP) and lithium titanium oxide (Li4Ti5O12; LTO) are evaluated as negative electrodes, exhibiting specific advantages for this DIB setup. In this work, a new DIB storage concept combining an environmentally friendly, transition-metal-free, abundant graphite positive electrode material, and a nonflammable water-based electrolyte is established, thus paving the path toward a sustainable and safe alternative energy storage technology.

Authors:
 [1];  [1];  [1];  [2];  [1];  [3];  [3];  [1];  [1]; ORCiD logo [1]
  1. Univ. of Münster (Germany)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  3. Forschungszentrum Juelich, Münster (Germany)
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program; German Federal Ministry of Education and Research (BMBF); Ministry of Economic Affairs, Innovation, Digitalization and Energy of the State of North Rhine-Westphalia (MWIDE)
OSTI Identifier:
1719113
Report Number(s):
PNNL-SA-145659
Journal ID: ISSN 1614-6832
Grant/Contract Number:  
AC05-76RL01830; 03XP0118; 313-W044A
Resource Type:
Accepted Manuscript
Journal Name:
Advanced Energy Materials
Additional Journal Information:
Journal Volume: 10; Journal Issue: 8; Journal ID: ISSN 1614-6832
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; anion intercalation; aqueous batteries; dual-ion batteries; graphite intercalation compounds; hybrid aqueous/nonaqueous electrolytes

Citation Formats

Wrogemann, Jens Matthies, Künne, Sven, Heckmann, Andreas, Rodríguez‐Pérez, Ismael A., Siozios, Vassilios, Yan, Bo, Li, Jie, Winter, Martin, Beltrop, Kolja, and Placke, Tobias. Development of Safe and Sustainable Dual-Ion Batteries Through Hybrid Aqueous/Nonaqueous Electrolytes. United States: N. p., 2020. Web. doi:10.1002/aenm.201902709.
Wrogemann, Jens Matthies, Künne, Sven, Heckmann, Andreas, Rodríguez‐Pérez, Ismael A., Siozios, Vassilios, Yan, Bo, Li, Jie, Winter, Martin, Beltrop, Kolja, & Placke, Tobias. Development of Safe and Sustainable Dual-Ion Batteries Through Hybrid Aqueous/Nonaqueous Electrolytes. United States. https://doi.org/10.1002/aenm.201902709
Wrogemann, Jens Matthies, Künne, Sven, Heckmann, Andreas, Rodríguez‐Pérez, Ismael A., Siozios, Vassilios, Yan, Bo, Li, Jie, Winter, Martin, Beltrop, Kolja, and Placke, Tobias. Wed . "Development of Safe and Sustainable Dual-Ion Batteries Through Hybrid Aqueous/Nonaqueous Electrolytes". United States. https://doi.org/10.1002/aenm.201902709. https://www.osti.gov/servlets/purl/1719113.
@article{osti_1719113,
title = {Development of Safe and Sustainable Dual-Ion Batteries Through Hybrid Aqueous/Nonaqueous Electrolytes},
author = {Wrogemann, Jens Matthies and Künne, Sven and Heckmann, Andreas and Rodríguez‐Pérez, Ismael A. and Siozios, Vassilios and Yan, Bo and Li, Jie and Winter, Martin and Beltrop, Kolja and Placke, Tobias},
abstractNote = {In this study, a new dual-ion battery (DIB) concept based on an aqueous/non-aqueous electrolyte is reported, combining high safety in the form of a nonflammable water-in-salt electrolyte, a high cathodic stability by forming a protective interphase on the negative electrode (non-aqueous solvent), and improved sustainability by using a graphite-based positive electrode material. Far beyond the anodic stability limit of water, the formation of a stage-2 acceptor-type graphite intercalation compound (GIC) of bis(trifluoromethanesulfonyl) imide (TFSI) anions from an aqueous-based electrolyte is achieved for the first time, as confirmed by ex-situ X-ray diffraction. The choice of negative electrode material shows a huge impact on the performance of the DIB cell chemistry, i.e., discharge capacities up to 40 mAh g–1 are achieved even at a high specific current of 200 mA g–1. In particular, lithium titanium phosphate (LiTi2(PO4)3; LTP) and lithium titanium oxide (Li4Ti5O12; LTO) are evaluated as negative electrodes, exhibiting specific advantages for this DIB setup. In this work, a new DIB storage concept combining an environmentally friendly, transition-metal-free, abundant graphite positive electrode material, and a nonflammable water-based electrolyte is established, thus paving the path toward a sustainable and safe alternative energy storage technology.},
doi = {10.1002/aenm.201902709},
journal = {Advanced Energy Materials},
number = 8,
volume = 10,
place = {United States},
year = {Wed Jan 15 00:00:00 EST 2020},
month = {Wed Jan 15 00:00:00 EST 2020}
}

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