New battery strategies with a polymer/Al2O3 separator

Kyusung Park; Joon Hee Cho; Kadhiravan Shanmuganathan; Jie Song; Jing Peng; Mallory Gobet; Steven Greenbaum; Christopher J. Ellison; John B. Goodenough

doi:10.1016/j.jpowsour.2014.04.017

New battery strategies with a polymer/Al₂O₃ separator

Kyusung Park, Joon Hee Cho, Kadhiravan Shanmuganathan, Jie Song, Jing Peng, Mallory Gobet, Steven Greenbaum, Christopher J. Ellison, John B. Goodenough

Chemical Engineering and Materials Science

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

73 Scopus citations

Abstract

A low-cost, thin, flexible, and mechanically robust alkali-ion electrolyte separator is shown to allow fabrication of a safe rechargeable alkali-ion battery with alternative cathode strategies. A Na-ion battery with an insertion host as cathode and a Li-ion battery with a redox flow-through cathode are demonstrated to cycle without significant fade. The separator membrane is a composite of Al₂O₃ particles and cross-linked ethylene-oxide chains; it can be fabricated at low cost into a large-area thin membrane that blocks dendrites from an alkali-metal anode. To block a soluble ferrocene redox molecule from crossing from the cathode side to the anode in a Li-ion battery with a redox-flow cathode, a thin mixed Li⁺/ electronic-conducting film has been added to the cathode side of the composite separator. An osmosis issue was minimized by balancing concentrations of solutes on the two sides of the separator where the cathode side contains a soluble redox molecule.

Original language	English (US)
Pages (from-to)	52-58
Number of pages	7
Journal	Journal of Power Sources
Volume	263
DOIs	https://doi.org/10.1016/j.jpowsour.2014.04.017
State	Published - Oct 1 2014

Bibliographical note

Funding Information:
JBG acknowledges support from the Welch Foundation (Grant F-1066 ) and the Lawrence Berkeley National Laboratory BATT Program (project number 6998655). CJE acknowledges partial support from the Welch Foundation (Grant F-1709 ), 3M Nontenured Faculty Grant and DuPont Young Professor Award . JHC acknowledges partial financial support from LG Chem . Graduate Research Fellowship. NMR measurements at Hunter College were supported by Grant # DE-SC0005029 from the Basic Energy Sciences Division of the U.S. Department of Energy .

Keywords

Ceramic-polymer composite membrane
Charged battery
Hybrid redox flow battery
Osmosis

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Cite this

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abstract = "A low-cost, thin, flexible, and mechanically robust alkali-ion electrolyte separator is shown to allow fabrication of a safe rechargeable alkali-ion battery with alternative cathode strategies. A Na-ion battery with an insertion host as cathode and a Li-ion battery with a redox flow-through cathode are demonstrated to cycle without significant fade. The separator membrane is a composite of Al2O3 particles and cross-linked ethylene-oxide chains; it can be fabricated at low cost into a large-area thin membrane that blocks dendrites from an alkali-metal anode. To block a soluble ferrocene redox molecule from crossing from the cathode side to the anode in a Li-ion battery with a redox-flow cathode, a thin mixed Li+/ electronic-conducting film has been added to the cathode side of the composite separator. An osmosis issue was minimized by balancing concentrations of solutes on the two sides of the separator where the cathode side contains a soluble redox molecule.",

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N2 - A low-cost, thin, flexible, and mechanically robust alkali-ion electrolyte separator is shown to allow fabrication of a safe rechargeable alkali-ion battery with alternative cathode strategies. A Na-ion battery with an insertion host as cathode and a Li-ion battery with a redox flow-through cathode are demonstrated to cycle without significant fade. The separator membrane is a composite of Al2O3 particles and cross-linked ethylene-oxide chains; it can be fabricated at low cost into a large-area thin membrane that blocks dendrites from an alkali-metal anode. To block a soluble ferrocene redox molecule from crossing from the cathode side to the anode in a Li-ion battery with a redox-flow cathode, a thin mixed Li+/ electronic-conducting film has been added to the cathode side of the composite separator. An osmosis issue was minimized by balancing concentrations of solutes on the two sides of the separator where the cathode side contains a soluble redox molecule.

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