Experimental confirmation of low surface energy in LiCoO2 and implications for lithium battery electrodes

Pardha S. Maram; Gustavo C.C. Costa; Alexandra Navrotsky

doi:10.1002/anie.201305375

Experimental confirmation of low surface energy in LiCoO₂ and implications for lithium battery electrodes

Pardha S. Maram, Gustavo C.C. Costa, Alexandra Navrotsky

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

29 Scopus citations

Abstract

Water adsorption on the surface of LiCoO₂ nanoparticles was investigated. As the water coverage increases the adsorption enthalpy decreases reaching the enthalpy of water condensation (-44kJ mol^-1). The experimentally observed average surface energy corresponding to all facets agree well with those reported from DFT calculations. The observed low surface energy is attributed to the surface Co³⁺ spin transition in nanophase LiCoO₂.

Original language	English (US)
Pages (from-to)	12139-12142
Number of pages	4
Journal	Angewandte Chemie - International Edition
Volume	52
Issue number	46
DOIs	https://doi.org/10.1002/anie.201305375
State	Published - Nov 11 2013
Externally published	Yes

Keywords

layered compounds
LiCoO
lithium ion batteries
surface energy
thermodynamics

ASJC Scopus subject areas

Catalysis
Chemistry(all)

Access to Document

10.1002/anie.201305375

Cite this

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abstract = "Water adsorption on the surface of LiCoO2 nanoparticles was investigated. As the water coverage increases the adsorption enthalpy decreases reaching the enthalpy of water condensation (-44kJ mol-1). The experimentally observed average surface energy corresponding to all facets agree well with those reported from DFT calculations. The observed low surface energy is attributed to the surface Co3+ spin transition in nanophase LiCoO2.",

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AU - Costa, Gustavo C.C.

AU - Navrotsky, Alexandra

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KW - layered compounds

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KW - lithium ion batteries

KW - surface energy

KW - thermodynamics

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