Results 81 to 90 of about 2,288,729 (253)

Nickel-dependent interfacial chemistry in layered oxide cathodes: insights from X-ray photoelectron spectroscopy and electrochemical quartz crystal microbalance measurements [PDF]

EES Batteries
NMC (LiNixCoyMnzO2; x + y + z ≈ 1) cathodes are widely used in Li-ion batteries for long-range vehicle applications. The Ni content in NMC cathodes directly affects practical capacity and, therefore, the energy densities of Li-ion batteries.
Monica J. Theibault, Dennis Nordlund, Marca Doeff, Wei Tong   +3 more
doaj   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

Advanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies, Bin Han, Paolo Samorì   +2 more
wiley   +1 more source

Dual‐Anion Electrolyte Additives Regulating Solvation Structure Toward Stable High‐Voltage Lithium Metal Batteries with NCM90 Cathodes

ChemistryEurope
Lithium metal batteries (LMBs) with high‐voltage high‐Ni cathodes (LiNixCoyMnzO2, x ≥ 0.8) are highly promising for next‐generation high‐energy‐density storage systems. However, the combination of reactive Li anodes, ultrahigh‐Ni‐content cathodes (NCM90,
Fulu Chu, Lixian Wang, Zehao An, Tong Yu, Xin Xue, Yu Xuan, Baolei Wang, Wenshuo Hou, Longwei Liang, Linrui Hou, Changzhou Yuan   +10 more
doaj   +1 more source

Hopping‐Mediated Zero‐Bias Photocharge Retention in Solution‐Processed Van Der Waals Heterostructures

Advanced Functional Materials, EarlyView.
Liquid–liquid interface assembly enables the fabrication of solution‐processed MoS2 and WSe2 centimeter‐scale, nanometer‐thick type‐II heterostructures on paper. Interfacial charge separation and hopping‐limited recombination produce rectification and persistent photocharge retention at zero bias.
Aniello Pelella, Andrea Sessa, Yi‐Chen Tsai, Xuzhao Liu, Abdul Mannan, George Greaves, Yahya Saboon, Ben Spencer, Antonio Di Bartolomeo, Cinzia Casiraghi, Jessica Boland, Alessandro Grillo   +11 more
wiley   +1 more source

Design and synthesis of Ni-rich and low/no-Co layered oxide cathodes for Li-ion batteries

, 2023
Li-ion batteries (LIBs) have achieved remarkable success in electric vehicles (EVs), consumer electronics, grid energy storage, and other applications thanks to a wide range of electrode materials that meet the performance requirements of different ...
Yang, Zhijie
core  

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

Constructing Stable Sub/Surface Structure to Boost Superior Cyclabilities of Single‐Crystalline Ni‐Rich Cathode

Advanced Science
Under prolonged high‐voltage cycling, single‐crystalline Ni‐rich cathodes are prone to severe transition metal dissolution, irreversible phase transformations, and reduced structural stability, which significantly hinder their practical application ...
Youqi Chu, Kai Wang, Changdong Chen, Dixing Ni, Qimeng Zhang, Hao Wang, Fan Peng, Anjie Lai, Gemeng Liang, Chenghao Yang   +9 more
doaj   +1 more source

Limiting cationic mixing and lattice oxygen loss of single-crystalline Ni-rich Co-poor cathodes for high-voltage Li-ion batteries

Green Energy & Environment
Developing cost-effective single-crystalline Ni-rich Co-poor cathodes operating at high-voltage is one of the most important ways to achieve higher energy Li-ion batteries.
Hujun Zhang, Haifeng Yu, Ling Chen, Muslum Demir, Qilin Cheng, Hao Jiang   +5 more
doaj   +1 more source

Effects of LLZO Microstructure Porosity, LLZO/Li‐Metal Interfacial Polarization Resistance, and Applied Areal Current Density on Li‐Metal Dendrite Formation in LLZO Bilayer Symmetric Cells

Advanced Functional Materials, EarlyView.
The effects of solid‐state electrolyte architecture and electrolyte/electrode interfacial polarization resistance on Critical Current Density and the risks for “interfacial” and “internal” Li‐metal dendrite formation were investigated in simulations of FIB‐reconstructed porous‐dense Li7La3Zr2O12 (LLZO) “bilayers”, providing insight for full cells ...
Tanner R. Hamann, Jon O'Neill, Eric D. Wachsman   +2 more
wiley   +1 more source

Graphene/PVDF Composites for Ni-rich Oxide Cathodes toward High-Energy Density Li-ion Batteries

, 2021
Li-ion batteries (LIBs) employ porous, composite-type electrodes, where few weight percentages of carbonaceous conducting agents and polymeric binders are required to bestow electrodes with electrical conductivity and mechanical robustness.
Weerawat To A Ran, Soo Min Hwang, Chang Won Park, Dongmok Whang, Jae Kwon Seo, Jung-Hun Lee, Young-Jun Kim   +6 more
core   +1 more source