Zachary W. Ragan
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Zachary W. Ragan has a total of 17 co-authors. Here are the top co-authors by number of shared publications:
Andrew Yang
School of Chemical Biological and Environmental Engineering Oregon State University Corvallis Oregon USA
2 shared publicationsAnkit Kumar Yadav
Department of Chemistry Oregon State University, Corvallis Oregon USA
2 shared publications- Chunsheng Wang
Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, USA
2 shared publications Guangxia Feng
Department of Chemical Engineering Stanford University Stanford California USA
2 shared publications- Hongchang Hao
Department of Chemical Engineering Stanford University Stanford California USA
2 shared publications Jing Wang
Chemical Sciences and Engineering Division Argonne National Laboratory Lemont Illinois USA
2 shared publications
Latest Publications
- 15 September 2026
- Published by Wiley in Angewandte Chemie
- Vol. 138 (44)
FePO 4 /FeF 3 Composites as High‐Capacity, Highly Reversible Cathodes for Li‐Ion Batteries
Increasing the energy density of Li‐ion batteries requires cathodes that can store more than one electron per transition‐metal center. Iron‐based conversion cathodes such as FeF 3 are attractive due to their high theoretical capacity and low cost; however, their practical performance is limited by large voltage hysteresis, sluggish kinetics, and capacity loss during cycling. Here, we report a ball‐milled FeF 3 /FePO 4 composite cathode that combines the high capacity of FeF 3 with the superior reversibility of FePO 4 . Compared to pure FeF 3 , the composite retains high capacity while exhibiting improved rate capability, lower polarization, and markedly enhanced cycling stability. After prelithiation, the composite delivers a reversible discharge capacity of 572 mAh g −1 , corresponding to a specific energy of 1175 Wh kg −1 . These results show that integration of FeF 3 and FePO 4 offers an effective route to cathodes that combine high capacity with high reversibility.
- 15 September 2026
- Published by Wiley in Angewandte Chemie
- Vol. 138 (44)
FePO 4 /FeF 3 Composites as High‐Capacity, Highly Reversible Cathodes for Li‐Ion Batteries
Increasing the energy density of Li‐ion batteries requires cathodes that can store more than one electron per transition‐metal center. Iron‐based conversion cathodes such as FeF 3 are attractive due to their high theoretical capacity and low cost; however, their practical performance is limited by large voltage hysteresis, sluggish kinetics, and capacity loss during cycling. Here, we report a ball‐milled FeF 3 /FePO 4 composite cathode that combines the high capacity of FeF 3 with the superior reversibility of FePO 4 . Compared to pure FeF 3 , the composite retains high capacity while exhibiting improved rate capability, lower polarization, and markedly enhanced cycling stability. After prelithiation, the composite delivers a reversible discharge capacity of 572 mAh g −1 , corresponding to a specific energy of 1175 Wh kg −1 . These results show that integration of FeF 3 and FePO 4 offers an effective route to cathodes that combine high capacity with high reversibility.
- 15 September 2026
- Published by Wiley in Angewandte Chemie International Edition
- Vol. 65 (44)
FePO 4 /FeF 3 Composites as High‐Capacity, Highly Reversible Cathodes for Li‐Ion Batteries
Increasing the energy density of Li‐ion batteries requires cathodes that can store more than one electron per transition‐metal center. Iron‐based conversion cathodes such as FeF 3 are attractive due to their high theoretical capacity and low cost; however, their practical performance is limited by large voltage hysteresis, sluggish kinetics, and capacity loss during cycling. Here, we report a ball‐milled FeF 3 /FePO 4 composite cathode that combines the high capacity of FeF 3 with the superior reversibility of FePO 4 . Compared to pure FeF 3 , the composite retains high capacity while exhibiting improved rate capability, lower polarization, and markedly enhanced cycling stability. After prelithiation, the composite delivers a reversible discharge capacity of 572 mAh g −1 , corresponding to a specific energy of 1175 Wh kg −1 . These results show that integration of FeF 3 and FePO 4 offers an effective route to cathodes that combine high capacity with high reversibility.
- 15 September 2026
- Published by Wiley in Angewandte Chemie International Edition
- Vol. 65 (44)
FePO 4 /FeF 3 Composites as High‐Capacity, Highly Reversible Cathodes for Li‐Ion Batteries
Increasing the energy density of Li‐ion batteries requires cathodes that can store more than one electron per transition‐metal center. Iron‐based conversion cathodes such as FeF 3 are attractive due to their high theoretical capacity and low cost; however, their practical performance is limited by large voltage hysteresis, sluggish kinetics, and capacity loss during cycling. Here, we report a ball‐milled FeF 3 /FePO 4 composite cathode that combines the high capacity of FeF 3 with the superior reversibility of FePO 4 . Compared to pure FeF 3 , the composite retains high capacity while exhibiting improved rate capability, lower polarization, and markedly enhanced cycling stability. After prelithiation, the composite delivers a reversible discharge capacity of 572 mAh g −1 , corresponding to a specific energy of 1175 Wh kg −1 . These results show that integration of FeF 3 and FePO 4 offers an effective route to cathodes that combine high capacity with high reversibility.