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View article: Recovery of High-Voltage Oxygen Redox Activity by Eliminating Residual Oxygen Dimers
Recovery of High-Voltage Oxygen Redox Activity by Eliminating Residual Oxygen Dimers Open
Oxygen-redox layered oxides are promising electrode materials with the potential for superior energy density; however, their real-world employment is hindered by severe electrochemical irreversibility. The fundamental origin of this irreve…
View article: Toward Practical Li‐Ion Cells With Li/Mn‐Rich Layered Oxide Cathodes: A Techno‐Economic Perspective on Material and Cell Design
Toward Practical Li‐Ion Cells With Li/Mn‐Rich Layered Oxide Cathodes: A Techno‐Economic Perspective on Material and Cell Design Open
Li/Mn‐rich layered oxide (LMR) cathode active materials offer a pathway towards high specific energy and low‐cost Li ion batteries (LIBs) due to their high practical specific discharge capacity (>250 mAh g −1 ) at moderate discharge voltag…
View article: Uniform pore structure enables negligible degradation in undoped and uncoated Ni-rich cathodes
Uniform pore structure enables negligible degradation in undoped and uncoated Ni-rich cathodes Open
Ni-rich layered oxide positive electrodes (cathodes) for lithium-ion batteries exhibit chemo-mechanical failures, with the consensus pointing to high-voltage phase transitions as the root cause. To mitigate these issues, compositional modi…
View article: Uniform pore structure enables negligible degradation in undoped and uncoated Ni-rich cathodes
Uniform pore structure enables negligible degradation in undoped and uncoated Ni-rich cathodes Open
Ni-rich layered oxide positive electrodes (cathodes) for lithium-ion batteries exhibit chemo-mechanical failures, with the consensus pointing to high-voltage phase transitions as the root cause. To mitigate these issues, compositional modi…
View article: Electro-chemo-mechanical failure in layered oxide cathodes caused by rotational stacking faults
Electro-chemo-mechanical failure in layered oxide cathodes caused by rotational stacking faults Open
Electro-chemo-mechanical degradation is one of the most common causes of capacity deterioration in high-energy-density cathodes, particularly intercalation-based layered oxides. Here, we reveal a presence of rotational stacking faults (RSF…
View article: Coupling the structure evolution and the oxygen redox electrochemistry in layered transition metal oxides
Coupling the structure evolution and the oxygen redox electrochemistry in layered transition metal oxides Open
Lattice oxygen redox activity offers an unexplored way to access the latent superior electrochemical property of transition metal oxides for rechargeable batteries. However, the redox reaction of the lattice oxygen is often accompanied by …
View article: Revisiting the role of Zr doping in Ni-rich layered cathodes for lithium-ion batteries
Revisiting the role of Zr doping in Ni-rich layered cathodes for lithium-ion batteries Open
The suppression of oxygen oxidation is proposed as the critical origin of Zr doping on LiNi 0.92 Co 0.04 Mn 0.04 O 2 layered oxide LIB cathode material.