Search results for: Gang Sun

Items from 1 to 20 out of 942 results

article

Enabling the Strengthened Structural and Interfacial Stability of High‐Nickel LiNi_0.9Co_0.05Mn_0.05O₂ Cathode by a Coating‐Doping‐Microstructure Regulation Three‐In‐One Strategy

Yue Zou, Yonglin Tang, Qizheng Zheng, Haitang Zhang, more

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

High‐nickel layered cathodes exhibit great promise in advancing high‐energy‐density batteries owing to their significant advantages in high energy capacity and low cost, but they suffer severe structural and interfacial deterioration during cycling, resulting in safety risk and reduced cycle life. Herein, drawing inspiration from the low melting point infusion capability of Sb₂Se₃, a three‐pronged...

article

Achieving High‐Capacity Cathode Presodiation Agent Via Triggering Anionic Oxidation Activity in Sodium Oxide

Yilong Chen, Yuanlong Zhu, Zhefei Sun, Xiaoxiao Kuai, more

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

Compensating for the irreversible loss of limited active sodium (Na) is crucial for enhancing the energy density of practical sodium‐ion batteries (SIBs) full‐cell, especially when employing hard carbon anode with initially lower coulombic efficiency. Introducing sacrificial cathode presodiation agents, particularly those that own potential anionic oxidation activity with a high theoretical capacity,...

article

Non‐Resonant Structure Induces N‐Rich Solid Electrolyte Interface toward Ultra‐Stable Solid‐State Lithium‐Metal Batteries

Shuoxiao Zhang, Han Liu, Zhengbo Liu, Yajun Zhao, more

Advanced Functional Materials > 34 > 36 > n/a - n/a

The practical application of all‐solid‐state lithium metal batteries (ASSLMBs) is limited by lithium (Li) anode instability including Li dendrite formation and deteriorating interface with electrolytes. Here, a functional additive, isosorbide mononitrate (ISMN) with a non‐resonant structure (O₂−N−O−) is reported, which improves its reactivity and is utilized to build a stable N‐rich solid electrolyte...

article

Study on hydrophobic modification of starch‐based foam with fumigating and spraying

Gang Sun, Zhiqing Yuan, Chenyu Sun, Yunchun Wang

Polymer Engineering & Science > 64 > 9 > 4421 - 4429

To enhance water resistance of starch‐based foam, based on the porous and irregular surface feature of foam, fumigating hexamethyldisilazane (HMDS) and spraying nano‐SiO₂/ethanol solution were utilized to enhance hydrophobic properties of the starch‐based foam. Homemade starch‐molded foams were used for hydrophobic modification studies, the results showed that fumigating HMDS can lead to the formation...

article

A Cable‐Stayed Honeycomb Superstructure to Improve the Stability of Li‐Rich Materials via Inhibiting Interlaminar Lattice Strain

Yun‐shan Jiang, Zhong‐miao Liao, Fu‐da Yu, Wang Ke, more

Advanced Materials > 36 > 31 > n/a - n/a

In layered Li‐rich materials, over stoichiometric Li forms an ordered occupation of LiTM₆ in transition metal (TM) layer, showing a honeycomb superstructure along [001] direction. At the atomic scale, the instability of the superstructure at high voltage is the root cause of problems such as capacity/voltage decay of Li‐rich materials. Here a Li‐rich material with a high Li/Ni disorder is reported,...

article

The genetic diversity in the ancient human population of Upper Xiajiadian culture

Kong‐Yang Zhu, Zhi‐Ping Zhang, Le Tao, Run‐Qi Jiang, more

Journal of Systematics and Evolution > 62 > 4 > 785 - 793

The West Liao River (WLR) and Yellow River (YR) basins are two major centers of millet farming in northern China. The result from flotation analyses and the spatial distribution of archeological sites indicate that two distinct survival strategies—agriculture and pastoralism were adopted in the southern and western regions of the WLR. Previous studies of ancient populations from the western area of...

article

Mechanochemical Synthesis of Arylsilanes via Barbier‐Type Reaction between Aryl Halides and Chlorosilanes with Magnesium

Lianze Zong, Ruizhi Sun, Xixi Hu, Jiarui Zhang, more

Advanced Synthesis & Catalysis > 366 > 7 > 1509 - 1516

The reaction of chlorosilanes with organometallic reagents is an old and well‐developed approach to organosilicon compounds, however, its application was limited due to the sensitivity of organometallic reagents to air, water. Here we display a mechanochemical access to arylsilanes via Barbier‐type reaction of chlorosilanes with aryl halide with magnesium. By treatment of the two halides with Mg powder...

article

Visualizing and Regulating Dynamic Evolution of Interfacial Electrolyte Configuration during De‐solvation Process on Lithium‐Metal Anode

Junhao Wang, Jing Luo, Haichuan Wu, Xiaoyu Yu, more

Angewandte Chemie International Edition > 63 > 17 > n/a - n/a

Acting as a passive protective layer, solid‐electrolyte interphase (SEI) plays a crucial role in maintaining the stability of the Li‐metal anode. Derived from the reductive decomposition of electrolytes (e.g., anion and solvent), the SEI construction presents as an interfacial process accompanied by the dynamic de‐solvation process during Li‐metal plating. However, typical electrolyte engineering...

article

Visualizing and Regulating Dynamic Evolution of Interfacial Electrolyte Configuration during De‐solvation Process on Lithium‐Metal Anode

Junhao Wang, Jing Luo, Haichuan Wu, Xiaoyu Yu, more

Angewandte Chemie > 136 > 17 > n/a - n/a

article

Lattice Engineering on Li₂CO₃‐Based Sacrificial Cathode Prelithiation Agent for Improving the Energy Density of Li‐Ion Battery Full‐Cell

Yuanlong Zhu, Yilong Chen, Jianken Chen, Jianhua Yin, more

Advanced Materials > 36 > 13 > n/a - n/a

Developing sacrificial cathode prelithiation technology to compensate for active lithium loss is vital for improving the energy density of lithium‐ion battery full‐cells. Li₂CO₃ owns high theoretical specific capacity, superior air stability, but poor conductivity as an insulator, acting as a promising but challenging prelithiation agent candidate. Herein, extracting a trace amount of Co from LiCoO...

article

Graphitic Armor: A Natural Molecular Sieve for Robust Hydrogen Electroxidation

Hai‐Wen Chen, De‐Quan Cao, Shi‐Jun Xie, Jia‐Jun Dai, more

Angewandte Chemie International Edition > 63 > 14 > n/a - n/a

Carbon coating layers have been found to improve the catalytic performance of transition metals, which is usually explained as an outcome of electronic synergistic effect. Herein we reveal that the defective graphitic carbon, with a unique interlayer gap of 0.342 nm, can be a highly selective natural molecular sieve. It allows efficient diffusion of hydrogen molecules or radicals both along the in‐plane...

article

Graphitic Armor: A Natural Molecular Sieve for Robust Hydrogen Electroxidation

Hai‐Wen Chen, De‐Quan Cao, Shi‐Jun Xie, Jia‐Jun Dai, more

Angewandte Chemie > 136 > 14 > n/a - n/a

article

Lattice‐Matched Interfacial Modulation Based on Olivine Enamel‐Like Front‐Face Fabrication for High‐Voltage LiCoO₂

Yawen Yan, Shiyuan Zhou, Yichun Zheng, Haitang Zhang, more

Advanced Functional Materials > 34 > 8 > n/a - n/a

The high‐voltage induced undesirable surface passivation bilayer (cathode/electrolyte interface and cation‐densified surface phase) of LiCoO₂ inevitably leads to battery degradation. Herein, a continual/uniform enamel‐like olivine layer on LiCoO₂ surface is fabricated by employing a high‐speed mechanical fusion method . The enamel‐like layer suppresses interfacial side reactions by tuning EC dehydrogenation,...

article

Solvation Structure and Derived Interphase Tuning for High‐Voltage Ni‐Rich Lithium Metal Batteries with High Safety Using Gem‐Difluorinated Ionic Liquid Based Dual‐Salt Electrolytes

Yixing Li, Fangwei Ding, Yueyue Shao, Hongyu Wang, more

Angewandte Chemie > 136 > 8 > n/a - n/a

Stabilizing electrolytes for high‐voltage lithium metal batteries (LMBs) is crucial yet challenging, as they need to ensure stability against both Li anodes and high‐voltage cathodes (above 4.5 V versus Li/Li⁺), addressing issues like poor cycling and thermal runaway. Herein, a novel gem‐difluorinated skeleton of ionic liquid (IL) is designed and synthesized, and its non‐flammable electrolytes successfully...

article

Solvation Structure and Derived Interphase Tuning for High‐Voltage Ni‐Rich Lithium Metal Batteries with High Safety Using Gem‐Difluorinated Ionic Liquid Based Dual‐Salt Electrolytes

Yixing Li, Fangwei Ding, Yueyue Shao, Hongyu Wang, more

Angewandte Chemie International Edition > 63 > 8 > n/a - n/a

article

Manipulated Fluoro‐Ether Derived Nucleophilic Decomposition Products for Mitigating Polarization‐Induced Capacity Loss in Li‐Rich Layered Cathode

Baodan Zhang, Haitang Zhang, Haiyan Luo, Haiming Hua, more

Angewandte Chemie International Edition > 63 > 6 > n/a - n/a

Electrolyte engineering is a fascinating choice to improve the performance of Li‐rich layered oxide cathodes (LRLO) for high‐energy lithium‐ion batteries. However, many existing electrolyte designs and adjustment principles tend to overlook the unique challenges posed by LRLO, particularly the nucleophilic attack. Here, we introduce an electrolyte modification by locally replacing carbonate solvents...

article

Manipulated Fluoro‐Ether Derived Nucleophilic Decomposition Products for Mitigating Polarization‐Induced Capacity Loss in Li‐Rich Layered Cathode

Baodan Zhang, Haitang Zhang, Haiyan Luo, Haiming Hua, more

Angewandte Chemie > 136 > 6 > n/a - n/a

article

Implanting Transition Metal into Li₂O‐Based Cathode Prelithiation Agent for High‐Energy‐Density and Long‐Life Li‐Ion Batteries

Yilong Chen, Yuanlong Zhu, Wenhua Zuo, Xiaoxiao Kuai, more

Angewandte Chemie International Edition > 63 > 5 > n/a - n/a

Compensating the irreversible loss of limited active lithium (Li) is essentially important for improving the energy‐density and cycle‐life of practical Li‐ion battery full‐cell, especially after employing high‐capacity but low initial coulombic efficiency anode candidates. Introducing prelithiation agent can provide additional Li source for such compensation. Herein, we precisely implant trace Co...

article

Implanting Transition Metal into Li₂O‐Based Cathode Prelithiation Agent for High‐Energy‐Density and Long‐Life Li‐Ion Batteries

Yilong Chen, Yuanlong Zhu, Wenhua Zuo, Xiaoxiao Kuai, more

Angewandte Chemie > 136 > 5 > n/a - n/a

article

One‐Step Surface‐to‐Bulk Modification of High‐Voltage and Long‐Life LiCoO₂ Cathode with Concentration Gradient Architecture

Yawen Yan, Qiu Fang, Xiaoxiao Kuai, Shiyuan Zhou, more

Advanced Materials > 36 > 1 > n/a - n/a

Raising the charging cut‐off voltage of layered oxide cathodes can improve their energy density. However, it inevitably introduces instabilities regarding both bulk structure and surface/interface. Herein, exploiting the unique characteristics of high‐valence Nb⁵⁺ element, a synchronous surface‐to‐bulk‐modified LiCoO₂ featuring Li₃NbO₄ surface coating layer, Nb‐doped bulk, and the desired concentration...

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INFONA - science communication portal

Search results for: Gang Sun

Enabling the Strengthened Structural and Interfacial Stability of High‐Nickel LiNi_0.9Co_0.05Mn_0.05O₂ Cathode by a Coating‐Doping‐Microstructure Regulation Three‐In‐One Strategy

Achieving High‐Capacity Cathode Presodiation Agent Via Triggering Anionic Oxidation Activity in Sodium Oxide

Non‐Resonant Structure Induces N‐Rich Solid Electrolyte Interface toward Ultra‐Stable Solid‐State Lithium‐Metal Batteries

Study on hydrophobic modification of starch‐based foam with fumigating and spraying

A Cable‐Stayed Honeycomb Superstructure to Improve the Stability of Li‐Rich Materials via Inhibiting Interlaminar Lattice Strain

The genetic diversity in the ancient human population of Upper Xiajiadian culture

Mechanochemical Synthesis of Arylsilanes via Barbier‐Type Reaction between Aryl Halides and Chlorosilanes with Magnesium

Visualizing and Regulating Dynamic Evolution of Interfacial Electrolyte Configuration during De‐solvation Process on Lithium‐Metal Anode

Visualizing and Regulating Dynamic Evolution of Interfacial Electrolyte Configuration during De‐solvation Process on Lithium‐Metal Anode

Lattice Engineering on Li₂CO₃‐Based Sacrificial Cathode Prelithiation Agent for Improving the Energy Density of Li‐Ion Battery Full‐Cell

Graphitic Armor: A Natural Molecular Sieve for Robust Hydrogen Electroxidation

Graphitic Armor: A Natural Molecular Sieve for Robust Hydrogen Electroxidation

Lattice‐Matched Interfacial Modulation Based on Olivine Enamel‐Like Front‐Face Fabrication for High‐Voltage LiCoO₂

Solvation Structure and Derived Interphase Tuning for High‐Voltage Ni‐Rich Lithium Metal Batteries with High Safety Using Gem‐Difluorinated Ionic Liquid Based Dual‐Salt Electrolytes

Solvation Structure and Derived Interphase Tuning for High‐Voltage Ni‐Rich Lithium Metal Batteries with High Safety Using Gem‐Difluorinated Ionic Liquid Based Dual‐Salt Electrolytes

Manipulated Fluoro‐Ether Derived Nucleophilic Decomposition Products for Mitigating Polarization‐Induced Capacity Loss in Li‐Rich Layered Cathode

Manipulated Fluoro‐Ether Derived Nucleophilic Decomposition Products for Mitigating Polarization‐Induced Capacity Loss in Li‐Rich Layered Cathode

Implanting Transition Metal into Li₂O‐Based Cathode Prelithiation Agent for High‐Energy‐Density and Long‐Life Li‐Ion Batteries

Implanting Transition Metal into Li₂O‐Based Cathode Prelithiation Agent for High‐Energy‐Density and Long‐Life Li‐Ion Batteries

One‐Step Surface‐to‐Bulk Modification of High‐Voltage and Long‐Life LiCoO₂ Cathode with Concentration Gradient Architecture

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