Results 211 to 220 of about 1,347 (276)

Modulating Redox Mechanism in Metal Chalcogenides by Precisely Controlling Phase Transition to Achieve Ultrafast and Ultra‐Stable Sodium‐Ion Batteries

open access: yesCarbon Energy, EarlyView.
The typical conversion Na+ storage mechanism of ZnS/ZnSe was modulated toward surface redox pseudocapacitive reaction through precisely controlling the phase transition processes. The ZnS/ZnSe electrode presents ultra‐long cycling stability of 803 mAh g−1 after 1800 cycles and a capacity retention of 89% at ultrahigh current density of 20 A g−1 ...
Yishun Xie   +13 more
wiley   +1 more source

Commentary: an eye on PET quantification. [PDF]

open access: yesMol Imaging Biol, 2015
Walker MD, Sossi V.
europepmc   +1 more source

Unlocking Iron Redox Depth for High‐Energy Layered Sodium Oxide Cathodes

open access: yesCarbon Energy, EarlyView.
Valence engineering strategy is introduced into layered NiFeMn‐based oxide cathodes to intensify the cationic redox capacity by reconfiguring Fe's local chemical environment and unlocking unprecedented redox depth. The cathode shows reversible O3 → P3 → OP2 transition, low volume variation, and high structural integrity.
Yadong Song   +10 more
wiley   +1 more source

Magnetic‐Field Modulation of Na3V2(PO4)3 Crystal Orientation for Enhanced Sodium‐Ion Battery Performance

open access: yesCarbon Energy, EarlyView.
A universal and efficient strategy of “magnetic‐field modulated the preferred crystal orientation” with strong industrial compatibility has been proposed to effectively improve the electrochemical performance and thermal safety of Na3V2(PO4)3 ||HC batteries for the first time.
Pengcheng Wang   +8 more
wiley   +1 more source

Electronic Resonance Network Stabilized Crystal Structure in High‐Nickel Cathodes for Lithium‐Ion Batteries

open access: yesCarbon Energy, EarlyView.
Transition metal (TM) ions with empty eg orbitals induce single‐electron delocalization in Ni3+ to form the resonance structure of Ni─OO─TM through the high‐entropy effect. High‐nickel cathode materials with electron resonance structure have the advantages of improving thermodynamic stability, suppressing phase transitions, and mitigating lattice ...
Yi Li   +8 more
wiley   +1 more source

Ultrafast Sodium‐Ion Storage in Self‐Doped 2D PVP‐VS4/Ti3C2Tx Hybrids for High‐Performance Sodium‐Ion Half/Full Batteries

open access: yesCarbon Energy, EarlyView.
Self‐doped PVP‐VS4/Ti3C2Tx with sulfur vacancies enhances the structural stability and exhibits excellent electrochemical performance. ABSTRACT Transition metal sulfides demonstrate remarkable theoretical specific capacities, making them highly desirable anode materials for sodium‐ion batteries (SIBs).
Mingxuan Tang   +5 more
wiley   +1 more source

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