Topologically protected oxygen redox in a layered manganese oxide cathode for sustainable batteries
ZHANG, Qinghua
Beijing National Laboratory for Condensed Matter Physics
Yangtze River Delta Physics Research Center Co. Ltd
Beijing National Laboratory for Condensed Matter Physics
Yangtze River Delta Physics Research Center Co. Ltd
LI, Xinyan
Beijing National Laboratory for Condensed Matter Physics
College of Materials Science and Optoelectronic Technology
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Beijing National Laboratory for Condensed Matter Physics
College of Materials Science and Optoelectronic Technology
ZHANG, Qinghua
Beijing National Laboratory for Condensed Matter Physics
Yangtze River Delta Physics Research Center Co. Ltd
Beijing National Laboratory for Condensed Matter Physics
Yangtze River Delta Physics Research Center Co. Ltd
LI, Xinyan
Beijing National Laboratory for Condensed Matter Physics
College of Materials Science and Optoelectronic Technology
Beijing National Laboratory for Condensed Matter Physics
College of Materials Science and Optoelectronic Technology
SHANG, Tongtong
Beijing National Laboratory for Condensed Matter Physics
School of Physical Sciences
Beijing National Laboratory for Condensed Matter Physics
School of Physical Sciences
HU, Yong-Sheng
Beijing National Laboratory for Condensed Matter Physics
Yangtze River Delta Physics Research Center Co. Ltd
College of Materials Science and Optoelectronic Technology
Beijing National Laboratory for Condensed Matter Physics
Yangtze River Delta Physics Research Center Co. Ltd
College of Materials Science and Optoelectronic Technology
GU, Lin
Beijing National Laboratory for Condensed Matter Physics
School of Physical Sciences
Songshan Lake Materials Laboratory
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Beijing National Laboratory for Condensed Matter Physics
School of Physical Sciences
Songshan Lake Materials Laboratory
Idioma
en
Article de revue
Este ítem está publicado en
Nature Sustainability. 2022-03, vol. 5, n° 3, p. 214-224
Springer Nature
Resumen en inglés
Manganese could be the element of choice for cathode materials used in large-scale energy storage systems owning to its abundance and low toxicity levels. However, both lithium and sodium ion batteries adopting this electrode ...Leer más >
Manganese could be the element of choice for cathode materials used in large-scale energy storage systems owning to its abundance and low toxicity levels. However, both lithium and sodium ion batteries adopting this electrode chemistry suffer from rapid performance fading, suggesting a major technical barrier that must be overcome. Here we report a P3-type layered manganese oxide cathode Na 0.6 Li 0.2 Mn 0.8 O 2 (NLMO) that delivers a high capacity of 240 mAh g −1 with outstanding cycling stability in a lithium half-cell. Combined experimental and theoretical characterizations reveal a characteristic topological feature that enables the good electrochemical performance. Specifically, the-α-γ-layer stacking provides topological protection for lattice oxygen redox, whereas the reversibility is absent in P2-structured NLMO which takes a-α-β-configuration. The identified new order parameter opens an avenue towards the rational design of reversible Mn-rich cathode materials for sustainable batteries.< Leer menos
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