Results 51 to 60 of about 2,527,276 (248)

Mitigating reaction heterogeneity in Li-rich layered cathodes through surface-phase regulation enabled by tailored concentration gradients engineering

Green Energy & Environment
Lithium-rich layered oxides are promising cathodes for high-energy lithium-ion batteries, yet their applications are hindered by voltage decay, structural instability, and heterogeneous reaction dynamics.
Yujia Wu, Yuefeng Su, Jinyang Dong, Yun Lu, Jianan Hao, Huiquan Che, Teng Yang, Yiya Wang, Ning Li, Yibiao Guan, Feng Wu, Lai Chen   +11 more
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

Spatially Regulated Lithium Plating via Li2O‐Rich Interphase Enables Durable Fast‐Charging Hybrid Lithium Batteries

Advanced Functional Materials, EarlyView.
A Li2O‐rich solid electrolyte interphase (SEI) is engineered on graphite through a propylene carbonate‐based electrolyte to spatially regulate Li plating. The homogeneous interphase lowers Li nucleation barriers, promotes conformal Li deposition around graphite particles, and suppresses dendritic accumulation, enabling durable hybrid Li‐ion/Li‐metal ...
Robert Kuphal, Jingjing Liu, Junxiang Liu, Tao Ma, Yi Ding, Mahmood Haq, Satish Udpa, Stephen J. Harris, Chengcheng Fang   +8 more
wiley   +1 more source

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

Advanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon, Sangbin Park, Jaewoo Jung, Seongeun Lee, Chanwoo Jung, Min‐Sik Park, Won‐Sub Yoon   +6 more
wiley   +1 more source

Selective Lithium Recovery from Spent NCM811 Cathodes via MnSO₄-Assisted Rapid Thermal Reconstruction and Water Leaching

Separations
The increasing generation of spent Ni-rich layered cathodes creates an urgent demand for efficient lithium recovery and value-added reutilisation of transition-metal components.
Zhengwu Peng, Ruili Zheng, Xiangyu Wang, Zhen Wan, Xiaolin Pan, Zhi Wang, Zongliang Zhang, Dong Wang, Guoyu Qian   +8 more
doaj   +1 more source

The Role of Ni and Co in Suppressing O‐Loss in Li‐Rich Layered Cathodes [PDF]

, 2020
Lithium‐rich transition metal cathodes can deliver higher capacities than stoichiometric materials by exploiting redox reactions on oxygen. However, oxidation of O2− on charging often results in loss of oxygen from the lattice. In the case of Li2MnO3 all
House, Robert, Juan G. Lozano, Peter G. Bruce, Guerrini, Niccolo, Robert A. House, James W. Somerville, Rees, Gregory, Liyu Jin, Matthew R. Roberts, Edouard Boivin, Jin, Liyu, Christian Kuss, Lozano, Juan, Kuss, Christian, Roberts, Matthew, Bruce, Peter, Somerville, James, Niccolo Guerrini, Gregory J. Rees, Boivin, Edouard   +19 more
core   +1 more source

Balancing Hydrophobicity and Hydrophilicity: Dual Filler‐Engineered Proton Exchange Membranes for Durable, High‐Power Fuel Cells

Advanced Functional Materials, EarlyView.
Polarity‐matched Zr–MOFs program Nafion's nanoscale morphology during solution casting. Hydrophilic UiO‐66 preserves hydrated pathways, while hydrophobic UiO‐67 increases the proton hopping sites by densifying ionic clusters. Combining both fillers yields a membrane that delivers 176 mS cm−1 conductivity, reaches 1.46 W cm−2 under 200 kPa, and triples ...
Yonghwi Cho, Yunseong Ji, Minkyu Choi, Junsu Kim, Yejin Kim, Su Jeong Lee, Wooyoung Choi, Choong Hoo Lee, Ju Yeon Kim, Ohchan Kwon, Hanim Kim, Du Yeol Ryu, Ki Chul Kim, Dae Woo Kim   +13 more
wiley   +1 more source

Graphene collage on Ni-rich layered oxide cathodes for advanced lithium-ion batteries

Nature Communications, 2021
Li-ion battery electrodes contain inactive materials, such as conducting agents and polymeric binders, which limit the energy density. Here, the authors demonstrate highly dense Ni-rich cathodes with improved volumetric capacities by coating graphene and
Chang Won Park, Jung-Hun Lee, Jae Kwon Seo, Won Young Jo, Dongmok Whang, Soo Min Hwang, Young-Jun Kim   +6 more
doaj   +1 more source

Heuristic solution for achieving long-term cycle stability for Ni-rich layered cathodes at full depth of discharge

, 2021
The demand for energy sources with high energy densities continues to push the limits of Ni-rich layered oxides, which are currently the most promising cathode materials in automobile batteries.
Yoon, Chong S., Nam, Gyeong Won, Kaghazchi, Payam, Son, Byoung-Ki, Kuo, Liang-Yin, Sun, Yang-Kook, Kim, Un-Hyuck, Park, Geon-Tae, Liu, Jun   +8 more
core   +1 more source

Tracking Battery Microstructural Degradation Through Directional Thermal Transport Signatures

Advanced Functional Materials, EarlyView.
In lithium‐ion batteries, heat conduction varies between the through‐plane and in‐plane directions because of the cell's layered structure. Therefore, cell degradation influences thermal conductivity in each direction uniquely due to detailed microstructural and compositional changes.
Mohammad Shoghi Tekmedash, Rituparna Mohanty, Jack Leber, David Nageb, Mirella Richard, Sharan Singh, Amin Reihani   +6 more
wiley   +1 more source