Results 61 to 70 of about 2,527,276 (248)

Mitigating the capacity and voltage decay of lithium-rich layered oxide cathodes by fabricating Ni/Mn graded surface

, 2017
A Ni/Mn-graded surface is proposed to suppress the unwanted phase transformations and side-reactions of high-energy lithium-rich layered oxide cathodes, and thus to mitigate their capacity and voltage decay.
Yangyang Wang, Lianqi Zhang, Shilun Gao, Peiyu Hou, Feng Li   +4 more
core   +1 more source

Opening a New Horizon for the Facile Synthesis of Long-Life Ni-Rich Layered Cathode

, 2023
The compositional partitioning of the Li[NixCoyMn1–x–y]O2 layered cathodes, wherein the unstable but capacity-maximizing Ni-enriched compartment is encapsulated by a chemically protective Mn-rich shell, has been proven to improve the cycling performance ...
Myoung-Chan Kim (16846880), Dong-Hwi Kim (16846883), Sang-Mun Han, Myoung-Chan Kim, Yang-Kook Sun, Ji-Hyun Ryu, Min-Su Kim, Geon-Tae Park (5436113), Geon-Tae Park, Dong-Hwi Kim, Sang-Mun Han (16846877), Ji-Hyun Ryu (15375664), Min-Su Kim (183958), Yang-Kook Sun (1438129)   +13 more
core   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +1 more source

Electronic structure regulation enables sustainable anionic redox in Li-rich layered sulfides

Review of Materials Research
The exploitation of emerging anionic redox chemistry opens a promising pathway to boost the capacity of Li-rich layered cathodes. Lithium-rich layered sulfides are receiving unprecedented emphasis to achieve sustainable capacity based on sulfur redox ...
Jing-Chang Li, Haibo Zhao, Yu Sun, Jiaming Tian, Jie Yang, Lihua Zhao, Shaohua Guo   +6 more
doaj   +1 more source

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

Advanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar, María del Carmen Giménez‐López   +1 more
wiley   +1 more source

Quantifying Electrochemical Degradation in Single-Crystalline LiNi_{0.8}Mn_{0.1}Co_{0.1}O_{2}–Graphite Pouch Cells through Operando X-Ray and Postmortem Investigations

PRX Energy
Layered nickel-rich lithium transition-metal oxides (LiNi_{x}Mn_{y}Co_{1−x−y}O_{2}; where x ≥ 0.8), with single-crystalline morphology, are promising future high-energy-density Li-ion battery cathodes due to their ability to mitigate particle-cracking ...
Ashok S. Menon, Nickil Shah, James A. Gott, Eleni Fiamegkou, Matthew J. W. Ogley, Galo J. Páez Fajardo, Naoum Vaenas, Ieuan Ellis, N. Ravichandran, P. Cloetens, D. Karpov, J.M. Warnett, Paul Malliband, David Walker, Geoff West, Melanie Loveridge, Louis F.J. Piper   +16 more
doaj   +1 more source

Reconstructing Residual‐Solvent‐Involved Li+ Coordination in PVDF‐HFP Polymer Electrolytes for Stable Lithium Metal Batteries

Advanced Functional Materials, EarlyView.
2,2,2‐trifluoroethanamide‐mediated coordination regulation reconstructs the local Li+ environment in PVDF‐HFP polymer electrolytes by weakening residual DMF‐dominated coordination and promoting TFSI−‐involved anion‐rich solvation. This strategy facilitates Li+ migration and interfacial desolvation, promotes the formation of a thin inorganic‐rich SEI ...
Xiangsong Jiang, Qi Liu, Haohan Chen, Jianwei Lu, Yupeng Feng, Youwei Wang, Tianhao Zhao, Na Jiang, Wei Yang, Fei Li, Chunwei Dong, Shubiao Xia, Zhenzhen Shen, Weiwei Lei, Dan Liu, Jianping Long, Shimou Chen, Anjun Hu   +17 more
wiley   +1 more source

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

Advanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow, Hsi‐Wen Wu, Aimin Li, Yalou Guo, Duhong Chen, Jie Zhang, Paul A. Webley   +6 more
wiley   +1 more source

Operando single-particle imaging reveals that asymmetric ion flux contributes to capacity degradation in aged Ni-rich layered cathodes [PDF]

Using an operando optical scattering technique, we identify markedly asymmetric Li-ion flux in aged single crystalline NMC cathodes, primarily caused by an uneven growth of rocksalt phase across the particle surface.

core   +7 more sources

Electrochemical Diagnosis of Cathode Active Material Particle-Size Effects on Interfacial Contact in All-Solid-State Battery Composite Cathodes

Energies
Quantitative evaluation of the interfacial contact characteristics between the cathode active material (CAM) and solid electrolyte (SE) in all-solid-state battery (ASSB) composite cathodes is essential for improving electrochemical performance.
So-Young Joo, Heon-Cheol Shin
doaj   +1 more source