Research output per year
Research output per year
Christian Lund Jakobsen, Kasper Skovgaard Nielsen, Per Morgen, Espen Drath Bøjesen, Dorthe Bomholdt Ravnsbæk*
Research output: Contribution to journal › Journal article › Research › peer-review
Lithium vanadyl phosphate, LiVOPO4, holds interest as a Li-ion battery electrode due to the multiple active redox states of vanadium (V5+ V4+ V3+) and the high redox potential induced by vanadyl phosphate. The orthorhombic β-LiVOPO4 polymorph is of special interest owing to its low Li-ion diffusion barrier and high stability. In this work, we synthesize β-LiVOPO4 and investigate the polymorphic purity under different synthesis conditions and show that high-energy ball milling without postsintering can alter the sample morphology and thereby dramatically increase the electrochemical performance of β-LiVOPO4. Through operando powder X-ray diffraction (PXRD), the structural evolution of β-LiVOPO4 during charge and discharge is unraveled and unexpected solid solution behavior in the Li-poor β-VOPO4 is revealed.
Original language | English |
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Journal | Journal of Physical Chemistry C |
Volume | 125 |
Issue number | 44 |
Pages (from-to) | 24301-24309 |
ISSN | 1932-7447 |
DOIs | |
Publication status | Published - 11. Nov 2021 |
Research output: Thesis › Ph.D. thesis