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Items from 1 to 20 out of 5,703 results

article

Air‐Stable Na_3.5C₆O₆ as a Sodium Compensation Additive in Cathode of Na‐Ion Batteries

Mengyan Cao, Liang Xu, Yujie Guo, Yixin Li, more

Small > 20 > 42 > n/a - n/a

Sodium‐ion battery (SIB) is a candidate for the stationary energy storage systems because of the low cost and high abundance of sodium. However, the energy density and lifespan of SIBs suffer severely from the irreversible consumption of the Na‐ions for the formation of the solid electrolyte interphase (SEI) layer and other side reactions on the electrodes. Here, Na_3.5C₆O₆ is proposed as an air‐stable...

article

Multifunctional Scavenger Boosts Cathode Interfacial Stability with Reduced Water Footprint for Direct Recycling of Spent Lithium‐Ion Batteries

Xiaolu Yu, Sicen Yu, Jiao Lin, Varun Gupta, more

Advanced Materials > 36 > 41 > n/a - n/a

The burgeoning accumulation of spent lithium‐ion batteries (LIBs), a byproduct from the widespread adoption of portable electronics and electric vehicles, necessitates efficient recycling strategies. Direct recycling represents a promising strategy to maximize the value of LIB waste and minimize harmful environmental outcomes. However, current efforts to large‐scale direct recycling face challenges...

article

Chimie Douce Derived Novel P2‐Type Layered Oxide for Potassium‐Ion Batteries (Adv. Funct. Mater. 41/2024)

Pawan Kumar Jha, Alexander Golubnichiy, Dorothy Sachdeva, Abhik Banerjee, more

Advanced Functional Materials > 34 > 41 > n/a - n/a

Chimie Douce The image illustrates chimie douce as a route to produce K‐ion battery cathodes from layered Na‐ion cathodes. The chimie douce (or soft chemistry) route acts as a net to screen K‐ions in place of Na‐ions in layered oxides. In article number 2410665, Prabeer Barpanda and co‐workers show that the resulting K‐ion cathodes work as efficient cathodes for secondary potassium‐ion batteries suitable...

article

Chimie Douce Derived Novel P2‐Type Layered Oxide for Potassium‐Ion Batteries

Pawan Kumar Jha, Alexander Golubnichiy, Dorothy Sachdeva, Abhik Banerjee, more

Advanced Functional Materials > 34 > 41 > n/a - n/a

The emergence of K‐ion batteries (KIBs) heralds a promising frontier in energy storage technology, offering the potential for high specific energy density, long cycle life, and robust power capabilities, all while utilizing the abundant resources of potassium. In response to the challenges posed by synthetic intricacies related to K‐based cathodes, the effort is directed toward employing soft chemistry...

article

A 3.2 V Binary Layered Oxide Cathode for Potassium‐Ion Batteries

Pawan Kumar Jha, Shubham Kumar Parate, Krishnakanth Sada, Kazuki Yoshii, more

Small > 20 > 37 > n/a - n/a

Potassium‐ion batteries (KIBs) can offer high energy density, cyclability, and operational safety while being economical due to the natural abundance of potassium. Utilizing graphite as an anode, suitable cathodes can realize full cells. Searching for potential cathodes, this work introduces P3‐type K_0.5Ni_1/3Mn_2/3O₂ layered oxide as a potential candidate synthesized by a simple solid‐state method...

article

A 3.2 V Binary Layered Oxide Cathode for Potassium‐Ion Batteries (Small 37/2024)

Pawan Kumar Jha, Shubham Kumar Parate, Krishnakanth Sada, Kazuki Yoshii, more

Small > 20 > 37 > n/a - n/a

Potassium‐Ion Batteries Exploring Co‐free sustainable cathode materials for potassium‐ion batteries. In article number 2402204, Prabeer Barpanda and co‐workers introduce P3‐type K_0.5Ni_0.33Mn_0.67O₂ layered oxide as a novel 3.2 V cathode. It involves row and honeycomb ordering of Mn and Ni. Computational screening and electrochemical analyses reveal it as a robust insertion material involving solid‐solution...

article

Effective Promotion of the Activity and Stability of Cathodes for Protonic Ceramic Fuel Cells

Hui Gao, Fan He, Feng Zhu, Jiaojiao Xia, more

Advanced Functional Materials > 34 > 33 > n/a - n/a

Protonic ceramic fuel cells (PCFCs) are emerging as effective devices for their excellent capability of converting energy. However, the sluggish oxygen reduction reaction (ORR) and poor durability of cathodes greatly limit their widespread commercialization. Herein, a multi‐cationic oxide nano‐catalyst with a nominal composition of Pr_0.2Ce_0.2Ni_0.2Co_0.2Fe_0.2O_x (denoted as PCNCFO) is designed and reported,...

article

Doping Regulation Stabilizing δ‐MnO₂ Cathode for High‐Performance Aqueous Aluminium‐ion Batteries

Shuimei Chen, Yueqi Kong, Cheng Tang, Nashaat Ahmed Gadelhak, more

Small > 20 > 32 > n/a - n/a

δ‐MnO₂ is a promising cathode material for aqueous aluminium‐ion batteries (AAIBs) for its layered crystalline structure with large interlayer spacing. However, the excellent Al ion storage performance of δ‐MnO₂ cathode remains elusive due to the frustrating structural collapse during the intercalation of high ionic potential Al ion species. Here, it is discovered that introducing heterogeneous metal...

article

Facile Deficiency Engineering in a Cobalt‐Free Perovskite Air Electrode to Achieve Enhanced Performance for Protonic Ceramic Fuel Cells

Qirui Ye, Huaqing Ye, Zilin Ma, Haoqing Lin, more

Small > 20 > 28 > n/a - n/a

As a crucial component responsible for the oxygen reduction reaction (ORR), cobalt‐rich perovskite‐type cathode materials have been extensively investigated in protonic ceramic fuel cell (PCFC). However, their widespread application at a commercial scale is considerably hindered by the high cost and inadequate stability. In response to these weaknesses, the study presents a novel cobalt‐free perovskite...

article

Electrochemical Investigations of Sulfur‐Decorated Organic Materials as Cathodes for Alkali Batteries

Qiang Fu, Lei Zhao, Xianlin Luo, Jan Hobich, more

Small > 20 > 24 > n/a - n/a

Alkali metal–sulfur batteries (particularly, lithium/sodium‐ sulfur (Li/Na–S)) have attracted much attention because of their high energy density, the natural abundance of sulfur, and environmental friendliness. However, Li/Na–S batteries still face big challenges, such as limited cycle life, poor conductivity, large volume changes, and the “shuttle effect” caused by the high solubility of Li/Na–polysulfides...

article

Electrostatically Shielded Transportation Enabling Accelerated Na⁺ Diffusivity in High‐Performance Fluorophosphate Cathode for Sodium‐Ion Batteries

Jinjin Wang, Hongbo Jing, Xiaomei Wang, Yaqing Xue, more

Advanced Functional Materials > 34 > 24 > n/a - n/a

A typical polyanionic based material Na₃V₂(PO₄)₂O₂F (Na₃VPO₂F) attracts much interest as a cathode for large‐scale sodium‐ion batteries in consideration of its stable structure and remarkable energy density. Nevertheless, the large coulombic attraction and repulsion suffered by the mobile Na⁺ from structural anions and surrounding Na⁺, respectively, result in a torpid reaction kinetics and inferior...

article

Mitigating Sodium Ordering for Enhanced Solid Solution Behavior in Layered NaNiO₂ Cathodes

Krishnakanth Sada, Steven Kmiec, Arumugam Manthiram

Angewandte Chemie International Edition > 63 > 25 > n/a - n/a

The O‐type layered nickel oxides suffer from undesired cooperative Jahn–Teller distortion stemming from Ni³⁺ ions and undergo multiple biphasic structural transformations during the insertion/extraction of large Na⁺ ions, posing a significant challenge to stabilize the structural integrity. We present here a systematic investigation of the impact of substituting 5 % divalent (Mg²⁺) or trivalent (Al...

article

Mitigating Sodium Ordering for Enhanced Solid Solution Behavior in Layered NaNiO₂ Cathodes

Krishnakanth Sada, Steven Kmiec, Arumugam Manthiram

Angewandte Chemie > 136 > 25 > n/a - n/a

article

Advanced Polymers in Cathodes and Electrolytes for Lithium–Sulfur Batteries: Progress and Prospects

Zihui Song, Wanyuan Jiang, Borui Li, Yunpeng Qu, more

Small > 20 > 19 > n/a - n/a

Lithium–sulfur (Li–S) batteries, which store energy through reversible redox reactions with multiple electron transfers, are seen as one of the promising energy storage systems of the future due to their outstanding advantages. However, the shuttle effect, volume expansion, low conductivity of sulfur cathodes, and uncontrollable dendrite phenomenon of the lithium anodes have hindered the further application...

article

Superior Durability and Activity of a Benchmark Triple‐Conducting Cathode by Tuning Thermo‐Mechanical Compatibility for Protonic Ceramic Fuel Cells

Zhexiang Yu, Lin Ge, Qing Ni, Yifeng Zheng, more

Advanced Functional Materials > 34 > 19 > n/a - n/a

As a benchmark triple‐conducting cathode, BaCo_0.4Fe_0.4Zr_0.1Y_0.1O₃₋_δ (BCFZY) has been widely investigated for protonic ceramic fuel cells (PCFC) in recent years. However, the reported electrochemical performance of BCFZY cathode differs, which is determined in this work to originate from the thermal expansion mismatch between BCFZY and electrolyte. Accordingly, two strategies for enhanced thermo‐mechanical...

article

Optimizing the Electron Spin States of Na₄Fe₃(PO₄)₂P₂O₇ Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage (Adv. Funct. Mater. 16/2024)

Yukun Xi, Xiaoxue Wang, Hui Wang, Mingjun Wang, more

Advanced Functional Materials > 34 > 16 > n/a - n/a

Sodium Storage In article number 2309701, Xifei Li, Mingjun Wang, and co‐workers report that the electron spin state of Na₄Fe₃(PO₄)₂P₂O₇ cathode can be optimized from low‐spin to medium‐spin via Mn/F dual‐doping, thus decreasing the band gap and increasing the electronic conductivity of the material, which thereby results in superior sodium storage.

article

Optimizing the Electron Spin States of Na₄Fe₃(PO₄)₂P₂O₇ Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage

Yukun Xi, Xiaoxue Wang, Hui Wang, Mingjun Wang, more

Advanced Functional Materials > 34 > 16 > n/a - n/a

A NASICON‐type Mn/F dual‐doping Na₄Fe₃(PO₄)₂P₂O₇ cathode material is successfully synthesized via a spray drying method. A medium‐spin of Fe is measured by DFT calculation, X‐ray absorption near edge structure (XANES), temperature‐dependent magnetization susceptibility (M−T) measurement, and electron paramagnetic resonance (EPR) tests. It indicates that the e_g orbital occupation of Fe²⁺ can be finely...

article

Accelerated Confined Mass Transfer of MoS₂ 1D Nanotube in Photo‐Assisted Metal–Air Batteries

Shuang Liang, Li‐Jun Zheng, Li‐Na Song, Xiao‐Xue Wang, more

Advanced Materials > 36 > 15 > n/a - n/a

Applying solar energy into energy storage battery systems is challenging in achieving green and sustainable development, however, the efficient progress of photo‐assisted metal–air batteries is restricted by the rapid recombination of photogenerated electrons and holes upon the photocathode. Herein, a 1D‐ordered MoS₂ nanotube (MoS₂‐ONT) with confined mass transfer can be used to extend the lifetime...

article

Advances of Zn Metal‐Free “Rocking‐Chair”‐Type Zinc Ion Batteries: Recent Developments and Future Perspectives

Youcun Bai, Heng Zhang, Wenhao Liang, Chong Zhu, more

Small > 20 > 8 > n/a - n/a

Aqueous zinc ion battery (AZIBs) has attracted the attention of many researchers because of its safety, economy, environmental protection, and high ionic conductivity of electrolytes. However, the battery greatly suffers from zinc dendrite produced by zinc metal anode leading to poor cycle life and even unsafe problems, which limit its further development for various important applications. It is...

article

Regulation of Anion Redox Activity via Solid‐Acid Modification for Highly Stable Li‐Rich Mn‐Based Layered Cathodes

Han‐xin Wei, Yu‐ming Liu, Yu‐hong Luo, Ying‐de Huang, more

Advanced Functional Materials > 34 > 7 > n/a - n/a

Anionic redox activity can trigger structural instability in Li‐rich Mn‐based cathodes. Lattice oxygen activity can be tuned through liquid acid‐induced spinel phases and oxygen vacancies. However, the liquid‐acid‐modified surface is still attacked by the electrolyte. Besides, the underlying mechanism of spinel phase suppression of lattice oxygen activity is controversial. Here, a solid acid strategy...

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Air‐Stable Na_3.5C₆O₆ as a Sodium Compensation Additive in Cathode of Na‐Ion Batteries

Multifunctional Scavenger Boosts Cathode Interfacial Stability with Reduced Water Footprint for Direct Recycling of Spent Lithium‐Ion Batteries

Chimie Douce Derived Novel P2‐Type Layered Oxide for Potassium‐Ion Batteries (Adv. Funct. Mater. 41/2024)

Chimie Douce Derived Novel P2‐Type Layered Oxide for Potassium‐Ion Batteries

A 3.2 V Binary Layered Oxide Cathode for Potassium‐Ion Batteries

A 3.2 V Binary Layered Oxide Cathode for Potassium‐Ion Batteries (Small 37/2024)

Effective Promotion of the Activity and Stability of Cathodes for Protonic Ceramic Fuel Cells

Doping Regulation Stabilizing δ‐MnO₂ Cathode for High‐Performance Aqueous Aluminium‐ion Batteries

Facile Deficiency Engineering in a Cobalt‐Free Perovskite Air Electrode to Achieve Enhanced Performance for Protonic Ceramic Fuel Cells

Electrochemical Investigations of Sulfur‐Decorated Organic Materials as Cathodes for Alkali Batteries

Electrostatically Shielded Transportation Enabling Accelerated Na⁺ Diffusivity in High‐Performance Fluorophosphate Cathode for Sodium‐Ion Batteries

Mitigating Sodium Ordering for Enhanced Solid Solution Behavior in Layered NaNiO₂ Cathodes

Mitigating Sodium Ordering for Enhanced Solid Solution Behavior in Layered NaNiO₂ Cathodes

Advanced Polymers in Cathodes and Electrolytes for Lithium–Sulfur Batteries: Progress and Prospects

Superior Durability and Activity of a Benchmark Triple‐Conducting Cathode by Tuning Thermo‐Mechanical Compatibility for Protonic Ceramic Fuel Cells

Optimizing the Electron Spin States of Na₄Fe₃(PO₄)₂P₂O₇ Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage (Adv. Funct. Mater. 16/2024)

Optimizing the Electron Spin States of Na₄Fe₃(PO₄)₂P₂O₇ Cathodes via Mn/F Dual‐Doping for Enhanced Sodium Storage

Accelerated Confined Mass Transfer of MoS₂ 1D Nanotube in Photo‐Assisted Metal–Air Batteries

Advances of Zn Metal‐Free “Rocking‐Chair”‐Type Zinc Ion Batteries: Recent Developments and Future Perspectives

Regulation of Anion Redox Activity via Solid‐Acid Modification for Highly Stable Li‐Rich Mn‐Based Layered Cathodes

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