Results 21 to 30 of about 151,328 (313)

Study on Robust Design for Aviation Gear Reducer

Hangkong gongcheng jinzhan, 2018
Aviation gear reducer usually has high requirements for weight, strength, reliability and efficiency. Considering the random characteristic of working conditions, the difference of technological level and the fluctuation of mechanical parameters such as ...
Han Binghai
doaj   +1 more source

Unlocking Ultra‐Long Cycle Stability of Li Metal Electrode by Separators Modified by Porous Red Phosphorus Nanosheets

Advanced Functional Materials, EarlyView.
Coating the standard polypropylene separator with a porous red phosphorous nanosheet greatly improves cycling performance in Li electrode cells. The phosphorus‐based surface chemistry deactivates electrolyte solvent decomposition and enhances the cleavage of F‐containing salt, resulting in an inorganic‐dominated electrolyte interphase (SEI) composition
Jiangpeng Wang, Mingzi Sun, Feng Lang, Zhijun Cai, Xitao Hu, Yao Gao, Chao Lin, Xueqiang Zhang, Bolong Huang, Quan Li   +9 more
wiley   +1 more source

Boosting the Energy Density of “Anode‐Free” Lithium Metal Batteries via Electrospun Polymeric Scaffolds

Advanced Functional Materials, EarlyView.
While host structures are known to enhance the reversibility and safety of lithium metal deposition, their additional volume and weight often decrease the battery's energy density and specific energy. By combining a lightweight and porous scaffold of electrospun polymer with a thinner separator, this article demonstrates a simultaneous improvement of ...
Lennart Wichmann, Bärbel Tengen, Peng Yan, Peter Lennartz, Isidora Cekic‐Laskovic, Martin Winter, Gunther Brunklaus   +6 more
wiley   +1 more source

Superharmonic proton motion in high-energy-density organic electrodes for aqueous zinc batteries

Nature Communications
The limited proton transfer kinetics within organic positive electrodes restricts the proton storage capacity and hinders achieving high energy density in aqueous zinc-organic batteries.
Boyu Li, Jiabin Ma, Ke Yang, Yuhang Li, Maggie Ng, Yuetao Ma, Xufei An, Xing Cheng, Jinshuo Mi, Man-Chung Tang, Yan-Bing He, Feiyu Kang   +11 more
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Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Homogeneous polymer-ionic solvate electrolyte with weak dipole-dipole interaction enabling long cycling pouch lithium metal battery

Nature Communications
Solid polymer electrolytes (SPEs) are considered as promising electrolytes for high-voltage lithium metal batteries. Whereas, the strong dipole-dipole interaction in polymer electrolytes limits the enhancement of the ionic conductivity.
Likun Chen, Tian Gu, Jinshuo Mi, Yuhang Li, Ke Yang, Jiabin Ma, Xufei An, Yuyuan Jiang, Danfeng Zhang, Xing Cheng, Shaoke Guo, Zhuo Han, Tingzheng Hou, Yidan Cao, Ming Liu, Wei Lv, Yan-Bing He, Feiyu Kang   +17 more
doaj   +1 more source

Effects of Goethite/Birnessite on Antimony Speciation in Yellow Soil from an Antimony Mining Area under Simulated Natural Conditions

Yankuang ceshi
The antimony (Sb) mining area and its surrounding soil are severely polluted with antimony, and the degree of antimony pollution is closely related to its speciation in the soil.
Jingguang LIU, Ping ZHAO, Wei REN, Xue MA, Kaiying HE, Xiaping ZHU   +5 more
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Improving electrochemical performance of LiNi0.5Mn1.5O4 positive electrodes via regulated cathode electrolyte interphase

Chemical Engineering Journal Advances, 2023
LiNi0.5Mn1.5O4 has been thoroughly investigated as one of the most promising high-voltage positive materials for Li-ion batteries, owing to its low cost, high energy density and good stability.
Zheng Lian, Bao Zhang, Yannan Zhang, Xiaohua Yu, Zhengwu Wang, Yixue Huang, Jianguo Duan, Ding Wang, Xiaoyuan Zeng, Peng Dong, Yingjie Zhang   +10 more
doaj   +1 more source

Encapsulating Zinc Powder in MXene/Silk Scaffolds with Zincophilic‐Hydrophobic Polymer for Flexible Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work develops flexible zinc‐ion batteries (FZIBs) using a zincophilic/hydrophobic polymer (thermoplastic polycarbonate‐based polyurethane, TPCU) to protect Zn powder anodes and MXene/Silk (MXS) as flexible current collectors. The designed TPCU‐ZnP@MXS structure enables uniform Zn deposition, yielding dendrite‐free anodes with stable cycling ...
Zixuan Yang, Zhiyu Wang, Junlun Cao, Han Wang, Weiwei Lei, Jingliang Li, Joselito M. Razal, Xungai Wang, Dan Liu   +8 more
wiley   +1 more source

Facile Electrochemical Synthesis of Bifunctional Needle-like Co-P Nanoarray for Efficient Overall Water Splitting

Molecules, 2023
The development of low-cost and high-performance bifunctional electrocatalysts for overall water splitting is still challenging. Herein, we employed a facile electrodeposition method to prepare bifunctional cobalt phosphide for overall water splitting ...
Xiong He, Jiayang Cai, Jie Zhou, Qiyi Chen, Qijun Zhong, Jinghua Liu, Zijun Sun, Dezhi Qu, Yudong Li   +8 more
doaj   +1 more source