---
res:
  bibo_abstract:
  - Aprotic alkali metal–oxygen batteries require reversible formation of metal superoxide
    or peroxide on cycling. Severe parasitic reactions cause poor rechargeability,
    efficiency, and cycle life and have been shown to be caused by singlet oxygen
    (1O2) that forms at all stages of cycling. However, its formation mechanism remains
    unclear. We show that disproportionation of superoxide, the product or intermediate
    on discharge and charge, to peroxide and oxygen is responsible for 1O2 formation.
    While the overall reaction is driven by the stability of peroxide and thus favored
    by stronger Lewis acidic cations such as Li+, the 1O2 fraction is enhanced by
    weak Lewis acids such as organic cations. Concurrently, the metal peroxide yield
    drops with increasing 1O2. The results explain a major parasitic pathway during
    cell cycling and the growing severity in K–, Na–, and Li–O2 cells based on the
    growing propensity for disproportionation. High capacities and rates with peroxides
    are now realized to require solution processes, which form peroxide or release
    O2via disproportionation. The results therefore establish the central dilemma
    that disproportionation is required for high capacity but also responsible for
    irreversible reactions. Highly reversible cell operation requires hence finding
    reaction routes that avoid disproportionation.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Eléonore
      foaf_name: Mourad, Eléonore
      foaf_surname: Mourad
  - foaf_Person:
      foaf_givenName: Yann K.
      foaf_name: Petit, Yann K.
      foaf_surname: Petit
  - foaf_Person:
      foaf_givenName: Riccardo
      foaf_name: Spezia, Riccardo
      foaf_surname: Spezia
  - foaf_Person:
      foaf_givenName: Aleksej
      foaf_name: Samojlov, Aleksej
      foaf_surname: Samojlov
  - foaf_Person:
      foaf_givenName: Francesco F.
      foaf_name: Summa, Francesco F.
      foaf_surname: Summa
  - foaf_Person:
      foaf_givenName: Christian
      foaf_name: Prehal, Christian
      foaf_surname: Prehal
  - foaf_Person:
      foaf_givenName: Christian
      foaf_name: Leypold, Christian
      foaf_surname: Leypold
  - foaf_Person:
      foaf_givenName: Nika
      foaf_name: Mahne, Nika
      foaf_surname: Mahne
  - foaf_Person:
      foaf_givenName: Christian
      foaf_name: Slugovc, Christian
      foaf_surname: Slugovc
  - foaf_Person:
      foaf_givenName: Olivier
      foaf_name: Fontaine, Olivier
      foaf_surname: Fontaine
  - foaf_Person:
      foaf_givenName: Sergio
      foaf_name: Brutti, Sergio
      foaf_surname: Brutti
  - foaf_Person:
      foaf_givenName: Stefan Alexander
      foaf_name: Freunberger, Stefan Alexander
      foaf_surname: Freunberger
      foaf_workInfoHomepage: http://www.librecat.org/personId=A8CA28E6-CE23-11E9-AD2D-EC27E6697425
    orcid: 0000-0003-2902-5319
  bibo_doi: 10.1039/c9ee01453e
  bibo_issue: '8'
  bibo_volume: 12
  dct_date: 2019^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/1754-5692
  - http://id.crossref.org/issn/1754-5706
  dct_language: eng
  dct_publisher: RSC@
  dct_title: Singlet oxygen from cation driven superoxide disproportionation and consequences
    for aprotic metal–O2 batteries@
...