Results 151 to 160 of about 9,543 (327)

Monodisperse High‐Entropy Metal Oxide Nanoparticles Encapsulated Within 2D Porous Carbon Sheets for Enhanced Catalytic Activity in Lithium–Sulfur Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study synthesizes monodisperse oxide nanoparticles with abundant ionic vacancies encapsulated in 2D porous carbon sheets via pyrolysis of a high‐entropy precursor, constructing a cross‐scale catalytic interface. It enables Li‐S batteries with a high capacity of 761 mAh g−1 at 3 C and retains 80.44% capacity after 1000 cycles at 1 C.
Zeyu Xue, Yuan Gao, Xixi Liu, Fangquan Wang, Yu‐Lun Chueh, Chunming Gao, Zexiang Chen, Caijun Zheng, Huifang Lv, Hualiang Wei, Zhiyu Zhou, Yan Wang, Zheng Liu, Yang Zhao, Ruxiang Xu   +14 more
wiley   +1 more source

Multi‐Dimensional Conductive Nanocomposites for Flexible Electronics

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Multi‐dimensional conductive nanocomposites integrate 0D, 1D, and 2D nanomaterials through spatial structure regulation and interface engineering, achieving “1 + 1 > 2” synergistic effects. By leveraging 0D filling to reduce contact resistance, 1D bridging to construct continuous conductive paths, and 2D supporting to enhance mechanical stability ...
Tianyu Wang, Ruimin Cai, Abbas Ali, Lizhe Li, Li Yang, Hulin Zhang, Xuge Fan, Yumin Xia, Wenyong Lai, Linmao Qian, Tiehu Li, Guosheng Shao, Liang Tian   +12 more
wiley   +1 more source

Unraveling Synergistic Regulation Mechanism in Nitrogen/Sulfur Co‐Doped Biomass‐Derived Hard Carbon Toward Durable Sodium‐Ion Battery Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Nitrogen/sulfur co‐doping optimizes the electron and spatial structure of biomass‐derived hard carbon, and the anode demonstrates superior long‐term cycling stability over 2000 cycles, validating an improved “adsorption‐intercalation‐pore filling” mechanism.
Qian Long, Fangyuan Zhang, Jiayu Qu, Songtao Li, Renfei Cheng, Yaning Zhao, Di Guo, Zhengwang Zhu, Haifeng Zhang   +8 more
wiley   +1 more source

Heteroatom‐Synergistic Effect on Anchoring Polysulfides In Chalcone‐Linked Nanographene Covalent Organic Frameworks for High‐Performance Li─S Batteries

Advanced Science
Lithium‐sulfur (Li─S) batteries are an attractive option for future energy storage devices because they offer higher theoretical specific capacity, energy density, and cost‐effectiveness than commercial lithium‐ion batteries.
Kayaramkodath Chandran Ranjeesh, Bharathkumar H. Javaregowda, Safa Gaber, Preeti Bhauriyal, Sushil Kumar, Tina Skorjanc, Matjaž Finšgar, Thomas Heine, Kothandam Krishnamoorthy, Dinesh Shetty   +9 more
doaj   +1 more source

Fabrication of NiFe-LDHs Modified Carbon Nanotubes as the High-Performance Sulfur Host for Lithium–Sulfur Batteries

Nanomaterials
Lithium–sulfur batteries offer the potential for significantly higher energy density and cost-effectiveness. However, their progress has been hindered by challenges such as the “shuttle effect” caused by lithium polysulfides and the volume expansion of ...
Lingwei Zhang, Runlan Li, Wenbo Yue
doaj   +1 more source

RuO2‐Based High‐Entropy Oxide and Its Asymmetric Catalysis on Polysulfide Conversion in Lithium–Sulfur Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
RuO2‐based high‐entropy metal oxide shows an asymmetric catalysis on polysulfide conversion with an inferior kinetics enhancement of polysulfide generation, but a superior promotion of Li2S deposition, which greatly favors the inhibition of shuttle effect and the improvement of battery performance. High‐entropy oxides with five or more metal components
Jingyi Zhou, Youliang Wang, Guixiang Zhong, Liyuan Tian, Yeqiang Che, Ze Zhang   +5 more
wiley   +1 more source

Development of sulfur based polymers for rechargeable lithium batteries [PDF]

, 2016
Lithium-ion (Li-ion) batteries are in the front edge of recent achievements concerning energy storage. However, Li-ion devices are reaching their maximum regarding energy density storage which restricts their appiicatíon in systems with large power ...
Almeida, Carlos M.F., Costa, Mário Rui, Dias, Rolando, Queiroz, A.M.   +3 more
core  

The Dimensional Revolution of Phosphorus: From Allotropicity to Battery System Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Phosphorus‐based materials are promising high‐capacity anodes classified by dimension (0D–3D) to systematically explore their properties and composite strategies. When combined with materials such as carbon to form heterostructures, the electrical conductivity and stability are effectively enhanced.
Shuhan Zhang, Zhiyuan Zhang, Ziying Pan, Kaixuan Hu, Yameng Yin, Yapan Wu, Caihong Yang, Lei Zheng, Dongsheng Li   +8 more
wiley   +1 more source

Advanced high-temperature batteries [PDF]

Recent results for Li-Al/FeS2 cells and bipolar battery design have shown the possibility of achieving high specific energy (210 Wh/kg) and high specific power (239 W/kg) at the cell level for an electric vehicle application.
Nelson, P. A.
core   +1 more source

Synthesis and Electrochemical Performance of Biochar/Sulfur Composites as Cathode Materials for Lithium-Sulfur Battery [PDF]

, 2015
单质硫具有资源丰富、无毒、廉价等优势，能提供高达1675mAh/g的理论容量，以硫和金属锂构建的锂硫电池能量密度为2600Wh/kg。但由于硫及其放电产物导电性差，中间产物多硫化锂的溶解及体积膨胀等问题，导致电极的活性材料利用率低和循环性差，限制了其应用。通过碳材料的引入可以获得导电复合材料，抑制多硫化物的穿梭，从而实现硫正极材料的高效利用；从生物质衍生而来的生物碳更具有简单易得，价格低廉，便于规模化，环保，资源可再生等优点，因此本文为以生物碳材料为主线 ...
吴娇红
core