Results 41 to 50 of about 26,991 (265)

Improvement of High-Voltage Electrochemical Performance of Surface Modified LiNi0.6Co0.2Mn0.2O2 Cathode by La2O3 Coating

International Journal of Electrochemical Science, 2018
Layered transition-metal oxides LiNi0.6Co0.2Mn0.2O2 (NCM 622) due to their poor stability when worked at high operating voltage have limited their applications in industy.
Jianxiong Liu, Xiaodong Jiang, Yannan Zhang, Peng Dong, Jianguo Duan, Yingjie Zhang, Yunfeng Luo, Zewei Fu, Yuhan Yao, Chengyi Zhu, Xiaohua Yu, Zhaolin Zhan   +11 more
doaj   +1 more source

Atomically Dispersed Ni Site Catalysts Accelerating Sluggish Sulfur Redox Kinetics in Nonaqueous Zn‐S Batteries

Advanced Functional Materials, EarlyView.
An atomically dispersed Ni catalyst featuring Ni‐N4 coordination is developed as a sulfur host for nonaqueous Zn─S batteries. This configuration modulates the electronic structure to lower activation barriers during rate‐limiting steps and promotes a robust ZnF2‐rich cathode‐electrolyte interphase, thereby accelerating sulfur redox kinetics ...
Junhyuk Ji, Dongwoo Kim, Nuri Moon, Daehwan Kim, Keon Kim, Nahyung Kim, Young Yong Kim, Won Bae Kim   +7 more
wiley   +1 more source

Boosting Li+ Diffusion in Lithium-Rich Oxides through Intrinsic Structural Design: Insights and Design Principles

Nano-Micro Letters
Highlights Sluggish Li+ transport limits high-power output and fast charging in lithium-rich oxides, governed by intrinsic factors (crystal structure, distortion, and reaction kinetics) and external factors (cathode/electrolyte interface behavior ...
Lifeng Xu, Min Hong, Jingjing Guo, Fangming Shen, Da Xu, Jinjian Zhang, Ying Zhang, Jianhui Zheng, Jun Lu   +8 more
doaj   +1 more source

Challenges and strategic approaches to constructing the full life cycle value chain of layered cathode materials for sodium-ion batteries

Nano Research Energy
Amid the escalating global environmental and energy crises, sodium-ion batteries (SIBs) are emerging as a significant complement to lithium-ion batteries (LIBs), owing to their high voltage platform, excellent safety, wide temperature range, and low cost.
Qingfeng Liu, Yuyun Li, Yongyou Su, Yi Fan, Fanbin Hu, Changjiang Li, Le Tian, Yun Luo, Baotong Cao, Liqianyun Xu, Qi Meng, Peng Dong   +11 more
doaj   +1 more source

Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion

Advanced Materials, EarlyView.
This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang, Gonzalo Rivera‐Sierra, Shirin Siahjani‐Gultekin, Jenifer Rubio‐Magnieto, Anis Allagui, Ignacio Sanjuán, David Franco, Antonio Guerrero, Enrique H. Balaguera, Juan Bisquert   +9 more
wiley   +1 more source

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

Advanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal, Jonathan Caroni, Asia Patriarchi, Olivera Luzanin, Rafael Ramos, Jan Bitenc, Manuel Melle‐Franco, Manuel Souto   +7 more
wiley   +1 more source

A Method for Improving the Electrochemical Properties of a Li1.2Ni0.15Co0.1Mn0.55O2 Cathode Material

International Journal of Electrochemical Science, 2017
A method for improving the electrochemical properties of Li1.2Ni0.15Co0.1Mn0.55O2 is described in this paper. The improvement of the electrochemical properties of Li1.2Ni0.15Co0.1Mn0.55O2 was achieved by introducing small amounts of H2O molecules.
Ying-jie Zhang, Zhe-zhong Shi, Hong-ren Mao, Zhen-ping Qiu, Cheng-yun Yang, Hai-bo Luo, Peng Dong   +6 more
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

A new opportunity for biomass-derived carbon in highly stable Li-O2 battery: A review

Nano Research Energy
Lithium-oxygen (Li-O2) battery is notable for the high theoretical energy density, and its widespread adoption has the potential to fundamentally transform the energy consumption landscape. However, the development of Li-O2 batteries has been hindered by
Guanjun Liu, Shaojie Qin, Xiping Zhang, Dan You, Yanjia Zhang, Xiaoyuan Zeng, Yiyong Zhang, Ziyi Zhu, Yingjie Zhang, Xue Li   +9 more
doaj   +1 more source

A Geometrically Transient Platform for Bioelectronic Implants

Advanced Materials, EarlyView.
Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik, John D. Goodwin, Atharv Naik, Philip Coatsworth, Ioi Chit Cheung, Farbod Amirghasemi, Anies Sohi, Ehsan Abedi, Tayeb Tadlaoui, Maral P. S. Mousavi, Andriy S. Kozlov, Victoria Salem, Andrew S. Cowburn, Firat Guder   +13 more
wiley   +1 more source