Synergistic energy band modulation and interfacial structure engineering for highly-reversible anionic redox in Li-rich Mn-based layered oxides
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F25%3A43932247" target="_blank" >RIV/60461373:22310/25:43932247 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/abs/pii/S2405829725004441" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S2405829725004441</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ensm.2025.104447" target="_blank" >10.1016/j.ensm.2025.104447</a>
Alternative languages
Result language
angličtina
Original language name
Synergistic energy band modulation and interfacial structure engineering for highly-reversible anionic redox in Li-rich Mn-based layered oxides
Original language description
Anionic redox plays a critical role in contributing to the high specific capacity of Li-rich Mn-based layered oxide (LLO), enabling lithium-ion batteries (LIBs) to reach energy densities up to 500 Wh kg-1 at the cell level. However, the activation of unstable O species at high voltages inevitably leads to structural instability and interfacial degradation, posing significant challenges for practical applications. Herein, we report a rapid low-temperature strategy to engineer a grain-level layer comprising surface LiZr2(PO4)3 (LZP) and an interfacial layered-spinel heterostructure on LLO, improving the reversibility of anionic redox and Li+ diffusion kinetics. The LZP surface layer modulates the antibonding (TM-O)* (TM represents a blend of 3d transition metals) and O 2p nonbonding bands in LLO, which enhance the reversibility of electron transfer and the stability of O species, thereby suppressing the irreversible structural transformation and parasitic reaction. Furthermore, the interfacial layered-spinel heterostructure forms three-dimensional (3D) Li+ diffusion channels, stabilizing structure and promoting Li+ migration. Consequently, the designed LLO exhibits an impressive discharge capacity of 303.0 mAh g-1 and outstanding cycle life with 81.0 % capacity maintenance over 500 cycles in full cells. The strategy of synergistic energy band modulation and interfacial structure engineering shows great promise in exploring advanced cathode materials for high-energy-density LIBs.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Energy Storage Materials
ISSN
2405-8297
e-ISSN
2405-8289
Volume of the periodical
80
Issue of the periodical within the volume
July 2025
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
nestránkováno
UT code for WoS article
001539345700001
EID of the result in the Scopus database
2-s2.0-105010130696