Toward the design of high voltage magnesium-lithium hybrid batteries using dual-salt electrolytes

Yingwen Cheng; Daiwon Choi; Kee Sung Han; Karl T. Mueller; Ji Guang Zhang; Vincent L. Sprenkle; Jun Liu; Guosheng Li

doi:10.1039/c6cc00986g

Toward the design of high voltage magnesium-lithium hybrid batteries using dual-salt electrolytes

Yingwen Cheng, Daiwon Choi, Kee Sung Han, Karl T. Mueller, Ji Guang Zhang, Vincent L. Sprenkle, Jun Liu, Guosheng Li

Chemistry

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

We report a design of high voltage magnesium-lithium (Mg-Li) hybrid batteries through rational control of the electrolyte chemistry, electrode materials and cell architecture. Prototype devices with a structure of Mg-Li/LiFePO₄ (LFP) and Mg-Li/LiMn₂O₄ (LMO) have been investigated. A Mg-Li/LFP cell using a dual-salt electrolyte 0.2 M [Mg₂Cl₂(DME)₄][AlCl₄]₂ and 1.0 M LiTFSI exhibits voltages higher than 2.5 V (vs. Mg) and a high specific energy density of 246 W h kg^-1 under conditions that are amenable for practical applications. The successful demonstrations reported here could be a significant step forward for practical hybrid batteries.

Original language	English (US)
Pages (from-to)	5379-5382
Number of pages	4
Journal	Chemical Communications
Volume	52
Issue number	31
DOIs	https://doi.org/10.1039/c6cc00986g
State	Published - Apr 21 2016

All Science Journal Classification (ASJC) codes

Catalysis
Electronic, Optical and Magnetic Materials
Ceramics and Composites
Chemistry(all)
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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title = "Toward the design of high voltage magnesium-lithium hybrid batteries using dual-salt electrolytes",

abstract = "We report a design of high voltage magnesium-lithium (Mg-Li) hybrid batteries through rational control of the electrolyte chemistry, electrode materials and cell architecture. Prototype devices with a structure of Mg-Li/LiFePO4 (LFP) and Mg-Li/LiMn2O4 (LMO) have been investigated. A Mg-Li/LFP cell using a dual-salt electrolyte 0.2 M [Mg2Cl2(DME)4][AlCl4]2 and 1.0 M LiTFSI exhibits voltages higher than 2.5 V (vs. Mg) and a high specific energy density of 246 W h kg-1 under conditions that are amenable for practical applications. The successful demonstrations reported here could be a significant step forward for practical hybrid batteries.",

author = "Yingwen Cheng and Daiwon Choi and Han, {Kee Sung} and Mueller, {Karl T.} and Zhang, {Ji Guang} and Sprenkle, {Vincent L.} and Jun Liu and Guosheng Li",

note = "Funding Information: This work was supported by the U.S. Department of Energy (DOE) Office of Electricity Delivery and Energy Reliability under Contract No. 57558. NMR experiments were performed at EMSL, a DOE Office of Science user facility sponsored by the DOE BER and located at PNNL. PNNL is a multiprogram laboratory operated by Battelle Memorial Institute for the DOE under Contract DE-AC05-76RL01830. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2016.",

year = "2016",

month = apr,

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doi = "10.1039/c6cc00986g",

language = "English (US)",

volume = "52",

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journal = "Chemical Communications",

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publisher = "Royal Society of Chemistry",

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T1 - Toward the design of high voltage magnesium-lithium hybrid batteries using dual-salt electrolytes

AU - Cheng, Yingwen

AU - Choi, Daiwon

AU - Han, Kee Sung

AU - Mueller, Karl T.

AU - Zhang, Ji Guang

AU - Sprenkle, Vincent L.

AU - Liu, Jun

AU - Li, Guosheng

N1 - Funding Information: This work was supported by the U.S. Department of Energy (DOE) Office of Electricity Delivery and Energy Reliability under Contract No. 57558. NMR experiments were performed at EMSL, a DOE Office of Science user facility sponsored by the DOE BER and located at PNNL. PNNL is a multiprogram laboratory operated by Battelle Memorial Institute for the DOE under Contract DE-AC05-76RL01830. Publisher Copyright: © The Royal Society of Chemistry 2016.

PY - 2016/4/21

Y1 - 2016/4/21

N2 - We report a design of high voltage magnesium-lithium (Mg-Li) hybrid batteries through rational control of the electrolyte chemistry, electrode materials and cell architecture. Prototype devices with a structure of Mg-Li/LiFePO4 (LFP) and Mg-Li/LiMn2O4 (LMO) have been investigated. A Mg-Li/LFP cell using a dual-salt electrolyte 0.2 M [Mg2Cl2(DME)4][AlCl4]2 and 1.0 M LiTFSI exhibits voltages higher than 2.5 V (vs. Mg) and a high specific energy density of 246 W h kg-1 under conditions that are amenable for practical applications. The successful demonstrations reported here could be a significant step forward for practical hybrid batteries.

AB - We report a design of high voltage magnesium-lithium (Mg-Li) hybrid batteries through rational control of the electrolyte chemistry, electrode materials and cell architecture. Prototype devices with a structure of Mg-Li/LiFePO4 (LFP) and Mg-Li/LiMn2O4 (LMO) have been investigated. A Mg-Li/LFP cell using a dual-salt electrolyte 0.2 M [Mg2Cl2(DME)4][AlCl4]2 and 1.0 M LiTFSI exhibits voltages higher than 2.5 V (vs. Mg) and a high specific energy density of 246 W h kg-1 under conditions that are amenable for practical applications. The successful demonstrations reported here could be a significant step forward for practical hybrid batteries.

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DO - 10.1039/c6cc00986g

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JO - Chemical Communications

JF - Chemical Communications

IS - 31

ER -

Toward the design of high voltage magnesium-lithium hybrid batteries using dual-salt electrolytes

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