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Issue 9, 2015
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A novel solid-state Li–O2 battery with an integrated electrolyte and cathode structure

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Abstract

A high internal resistance and limited triple-phase boundaries are two critical issues that limit the performance of conventional solid-state Li–O2 batteries. In this work, we propose and fabricate a novel solid-state Li–O2 battery with an integrated electrolyte and cathode structure. This design allows a thin electrolyte layer (about 10% of that in conventional batteries) and a highly porous cathode (78% in porosity), both of which contribute to a significant reduction in the internal resistance, while increasing triple-phase boundaries. As a result, the battery outputs a discharge capacity as high as 14 200 mA h gcarbon−1 at 0.15 mA cm−2, and can sustain 100 cycles at a fixed capacity of 1000 mA h gcarbon−1. The novel integrated electrolyte and cathode structure represents a significant step toward the advancement of Li–O2 batteries.

Graphical abstract: A novel solid-state Li–O2 battery with an integrated electrolyte and cathode structure

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Publication details

The article was received on 23 May 2015, accepted on 03 Aug 2015 and first published on 04 Aug 2015


Article type: Paper
DOI: 10.1039/C5EE01604E
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Citation: Energy Environ. Sci., 2015,8, 2782-2790
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    A novel solid-state Li–O2 battery with an integrated electrolyte and cathode structure

    X. B. Zhu, T. S. Zhao, Z. H. Wei, P. Tan and G. Zhao, Energy Environ. Sci., 2015, 8, 2782
    DOI: 10.1039/C5EE01604E

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