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Evidence of enhanced ion transport in Li-rich silicate intercalation materials

Abstract:

The silicate compounds Li2MSiO4 (where M = Mn, Fe, Co) have received significant attention recently as Li intercalation electrodes. Overwhelmingly they exhibit relatively poor kinetics of ion intercalation. By synthesizing Li-rich solid solutions of the form Li2+2xFe1-xSiO4 (with 0 ≤ x ≤ 0.3), we have identified the structural requirements for fast ion transport and hence relatively fast intercalation. Specifically the presence of additional Li+ in interstitial sites, not normally occupied in...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1002/aenm.201601043

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
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Grant:
theEnergyMaterialsProgrammeGrant(EP/K016288
EnergyStorageConsortium(EP/H019596)
Publisher:
Wiley Publisher's website
Journal:
Advanced Energy Materials Journal website
Volume:
7
Issue:
11
Article number:
1601043
Publication date:
2017-01-01
Acceptance date:
2016-11-15
DOI:
EISSN:
1614-6840
ISSN:
1614-6832
Source identifiers:
661548
Keywords:
Pubs id:
pubs:661548
UUID:
uuid:5f033d2f-4bd2-4ae5-b092-34cf6c053d91
Local pid:
pubs:661548
Deposit date:
2016-11-24

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