---
_id: '7307'
abstract:
- lang: eng
  text: The non-aqueous Li–air (O2) battery is receiving intense interest because
    its theoretical specific energy exceeds that of Li-ion batteries. Recharging the
    Li–O2 battery depends on oxidizing solid lithium peroxide (Li2O2), which is formed
    on discharge within the porous cathode. However, transporting charge between Li2O2
    particles and the solid electrode surface is at best very difficult and leads
    to voltage polarization on charging, even at modest rates. This is a significant
    problem facing the non-aqueous Li–O2 battery. Here we show that incorporation
    of a redox mediator, tetrathiafulvalene (TTF), enables recharging at rates that
    are impossible for the cell in the absence of the mediator. On charging, TTF is
    oxidized to TTF+ at the cathode surface; TTF+ in turn oxidizes the solid Li2O2,
    which results in the regeneration of TTF. The mediator acts as an electron–hole
    transfer agent that permits efficient oxidation of solid Li2O2. The cell with
    the mediator demonstrated 100 charge/discharge cycles.
article_processing_charge: No
article_type: original
author:
- first_name: Yuhui
  full_name: Chen, Yuhui
  last_name: Chen
- first_name: Stefan Alexander
  full_name: Freunberger, Stefan Alexander
  id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
  last_name: Freunberger
  orcid: 0000-0003-2902-5319
- first_name: Zhangquan
  full_name: Peng, Zhangquan
  last_name: Peng
- first_name: Olivier
  full_name: Fontaine, Olivier
  last_name: Fontaine
- first_name: Peter G.
  full_name: Bruce, Peter G.
  last_name: Bruce
citation:
  ama: Chen Y, Freunberger SA, Peng Z, Fontaine O, Bruce PG. Charging a Li–O2 battery
    using a redox mediator. <i>Nature Chemistry</i>. 2013;5(6):489-494. doi:<a href="https://doi.org/10.1038/nchem.1646">10.1038/nchem.1646</a>
  apa: Chen, Y., Freunberger, S. A., Peng, Z., Fontaine, O., &#38; Bruce, P. G. (2013).
    Charging a Li–O2 battery using a redox mediator. <i>Nature Chemistry</i>. Springer
    Nature. <a href="https://doi.org/10.1038/nchem.1646">https://doi.org/10.1038/nchem.1646</a>
  chicago: Chen, Yuhui, Stefan Alexander Freunberger, Zhangquan Peng, Olivier Fontaine,
    and Peter G. Bruce. “Charging a Li–O2 Battery Using a Redox Mediator.” <i>Nature
    Chemistry</i>. Springer Nature, 2013. <a href="https://doi.org/10.1038/nchem.1646">https://doi.org/10.1038/nchem.1646</a>.
  ieee: Y. Chen, S. A. Freunberger, Z. Peng, O. Fontaine, and P. G. Bruce, “Charging
    a Li–O2 battery using a redox mediator,” <i>Nature Chemistry</i>, vol. 5, no.
    6. Springer Nature, pp. 489–494, 2013.
  ista: Chen Y, Freunberger SA, Peng Z, Fontaine O, Bruce PG. 2013. Charging a Li–O2
    battery using a redox mediator. Nature Chemistry. 5(6), 489–494.
  mla: Chen, Yuhui, et al. “Charging a Li–O2 Battery Using a Redox Mediator.” <i>Nature
    Chemistry</i>, vol. 5, no. 6, Springer Nature, 2013, pp. 489–94, doi:<a href="https://doi.org/10.1038/nchem.1646">10.1038/nchem.1646</a>.
  short: Y. Chen, S.A. Freunberger, Z. Peng, O. Fontaine, P.G. Bruce, Nature Chemistry
    5 (2013) 489–494.
date_created: 2020-01-15T12:18:43Z
date_published: 2013-05-12T00:00:00Z
date_updated: 2021-01-12T08:12:56Z
day: '12'
doi: 10.1038/nchem.1646
extern: '1'
intvolume: '         5'
issue: '6'
language:
- iso: eng
month: '05'
oa_version: None
page: 489-494
publication: Nature Chemistry
publication_identifier:
  issn:
  - 1755-4330
  - 1755-4349
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Charging a Li–O2 battery using a redox mediator
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2013'
...