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Developing High-Energy, Stable All-Solid-State Lithium Batteries Using Aluminum-Based Anodes and High-Nickel Cathodes

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Nano-Micro Letters 2025年第1期17卷 1-15页

作者： Wu, Xin Wang, Meiyu Pan, Hui Sun, Xinyi Tang, Shaochun Zhou, Haoshen He, Ping Center of Energy Storage Materials & Technology Department of Energy Science and Engineering College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid-State Microstructures and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China Department of Materials Science and Engineering College of Engineering and Applied Sciences Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid-State Microstructures and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing210093 China

Aluminum (Al) exhibits excellent electrical conductivity, mechanical ductility, and good chemical compatibility with high-ionic-conductivity electrolytes. This makes it more suitable as an anode material for all-solid-state lithium batteries (ASSLBs) compared to the overly reactive metallic lithium anode and the mechanically weak silicon anode. This study finds that the pre-lithiated Al anode demonstrates outstanding interfacial stability with the Li6PS5Cl (LPSCl) electrolyte, maintaining stable cycling for over 1200 h under conditions of deep charge–discharge. This paper combines the pre-lithiated Al anode with a high-nickel cathode, LiNi0.8Co0.1Mn0.1O2, paired with the highly ionic conductive LPSCl electrolyte, to design an ASSLB with high energy density and stability. Using anode pre-lithiation techniques, along with dual-reinforcement technology between the electrolyte and the cathode active material, the ASSLB achieves stable cycling for 1000 cycles at a 0.2C rate, with a capacity retention rate of up to 82.2%. At a critical negative-to-positive ratio of 1.1, the battery’s specific energy reaches up to 375 Wh kg−1, and it maintains over 85.9% of its capacity after 100 charge–discharge cycles. This work provides a new approach and an excellent solution for developing low-cost, high-stability all-solid-state batteries. (Figure presented.) © The Author(s) 2025.

关键词： Solid-State Batteries

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Abnormal dielectric behavior of glaserite-type Ba_(3−x)Sr_(x)MgSi_(2)O_(8)solid solution

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Journal of advanced Ceramics 2025年第2期14卷 77-86页

作者： Jiaqing Yang Peng Lei Xiaoqiang Song Changzhi Yin Meng Zhang Weicheng Lei Yiyang Cai Mingfei Cheng Yaodong Liu Zihang Chen Yaqing Hu Wenzhong Lu Wen Lei School of Optical and Electronic Information Key Lab of Functional Materials for Electronic Information(B)of MOEHuazhong University of Science and TechnologyWuhan 430074China Wenzhou Key Laboratory of Microwave Communication Materials and Devices Wenzhou Advanced Manufacturing Institute of HUSTWenzhou 325035China

The temperature coefficient of the resonant frequency(τ_(f))of low-permittivity(ε_(r))microwave dielectric ceramics is required to be near 0 ppm/℃for practical ***,owing to the polarization mechanism,τ_(f)of low-ε_(r)microwave dielectric ceramics is generally ***,a novel microwave dielectric ceramic,Ba_(3−x)Sr_(x)MgSi_(2)O_(8),with an abnormal positiveτ_(f)at the applied temperature is *** this study,Sr^(2+)with a relatively small ionic radius was introduced to replace Ba^(2+),and a single-phase solid solution was formed(x>0.5).Ba_(3−x)Sr_(x)MgSi_(2)O_(8)ceramics were discussed in glaserite-type topology with space groups of P_(3)^(-)for x≤0.5,relatively high symmetry P_(3)^(-)m1 for 0.5functional theory simulation calculations revealed that the preferential occupation of Sr^(2+)ions could decrease the intrinsic formation energy and improve the microwave dielectric properties by mitigating the ionic size mismatch within the crystal *** present research offers a strategy for discovering novel microwave dielectric ceramics with abnormalτ_(f)values,which could serve as τ_(f)regulators in practical applications because of their low cost and excellent microwave dielectric properties.

关键词： microwave dielectric ceramics abnormal dielectric behavior ion size mismatch [SiO4]tetrahedra tilting phase transition density functional theory(DFT)

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Enhancing the mechanical properties and oxidation resistance of high-entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C0.95 ceramics through nitrogen doping

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Journal of Materials science and technology 2025年 235卷 12-27页

作者： Xia, Liansen Hu, Peitao Dong, Shun Xin, Jianqiang Gui, Kaixuan Zhang, Xinghong Zhou, Yanchun Science and Technology on Advanced Composite in Special Environments Laboratory Harbin Institute of Technology Harbin150001 China Institute for Aero Engine Tsinghua University Beijing100084 China School of Materials Science and Engineering Anhui Polytechnic University Wuhu241000 China School of Materials Science and Engineering Zhengzhou University Zhengzhou450001 China

High-entropy carbide ceramics (HECCs) exhibit superior properties compared to their constituent binary compounds. However, high synthesis and sintering temperature are main obstacles that limit their widespread applications. To address this issue, compositional and particle size controllable high-entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)Cx powders were successfully prepared by a sugar hydrogel combined with the carbothermal reduction method. Owing to the introduction of carbon vacancy, the temperature for the formation of single-phase solid solution of the high-entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)Cx powders was decreased, and the addition of nitrogen decreased the densification temperature of the high-entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C0.95 ceramic by 200 °C. In addition, the flexural strength and fracture toughness of the high-entropy (Ti0.2Zr0.2Hf0.2Nb0.2Ta0.2)C0.95 ceramic were improved by 29 % and 30 %, respectively, compared with those without nitrogen doping. Atomic-resolution high angle annular dark field scanning transmission electron microscopy (HAADF-STEM) and energy dispersive spectroscopy (EDS) mapping reveal that the segregation of N and small cation Ti as well as large lattice strains are responsible for the enhanced mechanical properties. Furthermore, with the introduction of nitrogen, the onset oxidation temperature (OOT) was increased, while the parabolic oxidation rate constant was decreased, revealing the beneficial effect of nitrogen doping on oxidation resistance. These results demonstrate that nitrogen doping can not only improve the mechanical properties of HECCs but also enhance the oxidation resistance, which paves the way for the wide application of HECCs. © 2025

关键词： Fracture toughness

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Prediction of New functional Fluorooxoborates with Expected Anionic Framework:A Case of CaB_(3)O_(5)F

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Chinese Physics Letters 2025年第3期42卷 85-92页

作者： Ke-Wang Zhang Wen-Qi Jin Ke Li Abudukadi Tudi Lin-Lin Liu Cong-Wei Xie Yu Xie Research Center for Crystal Materials CAS Key Laboratory of Functional Materials and Devices for Special Environmental ConditionsXinjiang Key Laboratory of Functional Crystal MaterialsXinjiang Technical Institute of Physics&ChemistryCASUrumqi 830011China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Materials Simulation Methods&Software of Ministry of Education International Center of Future ScienceKey Laboratory of Physics and Technology for Advanced Batteries(Ministry of Education)College of PhysicsJilin UniversityChangchun 130012China

The prediction of new fluorooxoborates as ultraviolet(UV)/deep ultraviolet(DUV)opto-electronic functional materials from a largely unexplored chemical space is a challenging *** has been suggested that the anionic frameworks formed by B–O and B–O–F units significantly determine the physical properties of ***,the rational design of anionic frameworks could facilitate the materials discovery ***,we propose that a candidate anionic framework can be efficiently derived from an existing one by slightly altering its oxygen *** this idea,we hypothesized the existence of a 1D[B_(3)O_(5)F]_(∞)chain from the wellknown 2D[B_(6)O_(9)F_(2_)]_(∞)***,seven CaB_(3)O_(5)F structures with the expected anionic framework were successfully ***-principles calculations show that all these structures have potential in the UV/DUV birefringent or nonlinear optical(NLO)material field,indicating that the 1D[B_(3)O_(5)F]_(∞)chain is indeed a promising anionic framework for achieving UV/DUV birefringent and NLO performance.

关键词： process borate anionic

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Dual-functional additive of cesium ion for achieving ultrahigh efficiency of persistent phosphorescence in existing polymer-based materials

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science China Chemistry 2025年第2期68卷 754-762页

作者： Yao Liu Jinzheng Chen Yiling Miao Kaimin Zhang Faxu Lin Huahua Huang Lina Zhang Zhan Yang Yi Zhang Zhenguo Chi Zhiyong Yang Key Laboratory for Polymeric Composite&Functional Materials of Ministry of Education Guangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional FilmsGuangdong Basic Research Center of Excellence(GBRCE)for Functional Molecular EngineeringSchool of ChemistrySun Yat-sen UniversityGuangzhou 510275China School of Materials Science and Engineering Sun Yat-sen UniversityGuangzhou 510275China College of Materials Science and Engineering Hebei University of EngineeringHandan 056038China School of Environmental and Chemical Engineering Wuyi UniversityJiangmen 529020China

Despite great achievements obtained for polymer-based room-temperature phosphorescence(RTP)materials,the limited efficiencies of persistent RTP still hinder their ***,a simple and universal strategy of using the dual-functional additive of Cs+was presented,which could simultaneously enhance the efficiency(Φp)and maintain the long lifetime(τp)of RTP in existing polymer-based systems with various phosphors and *** them,the commercial emitter(TpB)-doped polyvinyl alcohol(PVA)/Cs_(2)CO_(3) system possessed an extremely high Φp up to 75.5% and still maintained a longτp of 2.13 s,by introducing the heavy-atom effect and an extra network of ionic bonding through the Cs+***,the temperature resistance of RTP in TpB@PVA/Cs+film could also be improved to 85℃.More satisfactorily,the efficiency of Förster resonance energy transfer(FRET)from RTP to near-infrared(NIR)was also remarkably enhanced in the multi-component *** work provides a simple and universal strategy for developing polymer systems with high RTP performance.

关键词： persistent phosphorescence cesium carbonate efficiency heavy-atom effect ionic interaction

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Ultrasonic sprayed hollow ceramic/carbon microspheres function as thermal insulation, ablative resistance, and electromagnetic shielding materials

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Ceramics International 2025年第13期51卷 18029-18037页

作者： Qin, Chuhui Zhong, Hangyu Hu, Hongli Kang, Zhonglei Zhang, Bo-xing South China Advanced Institute for Soft Matter Science and Technology School of Emergent Soft Matter South China University of Technology Guangzhou510640 China Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices South China University of Technology Guangzhou510640 China

Hollow ceramic/carbon microspheres (HCCMs) have widespread applications for thermal insulation and ablative resistance materials in aerospace areas, attributed to their multiple advantages such as low density, low thermal conductivity, oxidation and high-temperature resistance. In this work, we fabricated HCCMs with diameters around 18–242 μm by the ultrasonic spray method, using mixed solutions of poly(acrylonitrile) (PAN), polyvinyl pyrrolidone (PVP), and preceramic polymers as starting materials. After optimizing the morphology of HCCMs, we introduced them as fillers into phenolic resin (PR). By adjusting the ratio between HCCMs and PR, the optimal properties were obtained at a loading content of 30 wt% of HCCMs. The density of as-obtained PR composite was 0.70 g/cm3, the thermal conductivity was 0.27 W/(m·K), and the maximum electromagnetic shielding effectiveness was 76.30 dB at the frequency of 8–12 GHz. This work develops a powerful approach to fabricating HCCMs, and demonstrates their typical application as fillers in PR to improve thermal insulation, electromagnetic shielding, and ablative resistance performance. © 2025 Elsevier Ltd and Techna Group S.r.l.

关键词： Microspheres

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High-Temperature-Resistant Aerogel composites for Pressure and Temperature Sensing

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Chemistry of Materials 2025年第9期37卷 3295-3304页

作者： Chen, Yankun Yan, Xue Wang, Rui Jin, Gaoling Kong, Lei Xu, Qian Zhao, Hongyang Kuang, Minxuan Zhang, Xiuqin Beijing Key Laboratory of Clothing Materials R & D and Assessment Beijing Engineering Research Center of Textile Nanofiber School of Materials Design & Engineering Beijing Institute of Fashion Technology Beijing100029 China Science and Technology on Advanced Functional Composites Laboratory Aerospace Research Institute of Materials & Processing Technology Beijing100076 China

Robust high-temperature intelligent composite materials exhibit vast potential in the aerospace, fire protection, and energy sectors. The common fabrication approach of high-temperature intelligent composites involves embedding optical fibers or rigid sensors within the composite. However, this approach endangers the structural integrity of the composite, potentially inducing mechanical damage under increased pressure. In this work, flexible silica aerogel/fabric composites (SAFCs) with temperature and pressure sensing capabilities at elevated temperatures were fabricated via printing and composite techniques. The SAFC pressure sensor benefits from robust mechanical and thermal properties, providing long-term reliable sensing performance at elevated temperatures up to 300 °C with a rapid response time (300 ms), large detection range (0-380 kPa), and significant fatigue resistance. SAFC’s outstanding thermal insulation established a temperature gradient across the heat source and environment, allowing thermoelectric potential production via the Seebeck effect and response to temperature alterations. This study presents a concept for fabricating aerogel/fabric sensing composites that can be applied in high-temperature environments. © 2025 American Chemical Society.

关键词： Thermal insulation

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Blocking thermal runaway propagation in large-format sodium-ion battery system through localized energy release

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Journal of Energy Chemistry 2025年第5期104卷 514-526页

作者： Yongchun Dang Yongchao Yu Zhenpo Wang Peng Liu Xunli Zhou Yongjie Zhao Peipei Qi Fei Xu Lei Li National Engineering Research Center of Electric Vehicles Beijing Co-Innovation Centre for Electric Vehicles Beijing Institute of Technology Beijing Institute of Technology Chongqing Innovation Center Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Research Center of Do-Fluoride New Energy Technology Co. Ltd.

Cascading thermal runaway(TR) propagation poses a critical safety concern for large-format sodium-ion battery(SIB) systems because of the heightened risks of fires or explosions. However, effectively suppressing TR propagation without introducing unintended side effects remains a significant ***, we demonstrate a localized energy release method to mitigate TR, by reducing the state of charge(SOC) of cells adjacent to the thermally runaway unit. We discover that as the SOCs decreased from 100%to 25%, the TR trigger temperature decreased significantly, and the maximum temperature decrease from 367 to 229 ℃. Meanwhile, the volume of gas decreased to one-third of its original value, while the range of explosion limits significantly narrowed. The analysis of the morphology of the debris further confirms that the structural damage is greater at higher SOC levels. Moreover, an Entropy Weight and Technique for Order Preference by Similarity to an Ideal Solution(EW-TOPSIS) method has been established to assess the safety status of SIBs, showing that the TR possibility is nearly linear with the SOCs, and the TR hazard is exponentially related to the SOCs. Finally, when the SOC of cells adjacent to the TR cell is reduced to 25%, TR can be directly blocked without the need for additional cooling or thermal insulation methods. This study not only advances the understanding of TR behavior in SIBs but also offers a straightforward approach to mitigating the TR risk in SIB systems.

关键词： Localized energy release Safety assessment Sodium-ion battery Thermal runaway

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Carbon Nanofiber/Polyaniline composite Aerogel with Excellent Electromagnetic Interference Shielding,Low Thermal Conductivity,and Extremely Low Heat Release

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Nano-Micro Letters 2025年第4期17卷 77-95页

作者： Mingyi Chen Jian Zhu Kai Zhang Hongkang Zhou Yufei Gao Jie Fan Rouxi Chen Hsing-Lin Wang School of Textile Science and Engineering Tiangong UniversityTianjin 300387People’s Republic of China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055People’s Republic of China School of Innovation and Entrepreneurship Southern University of Science and TechnologyShenzhen 518055People’s Republic of China Guangdong Provincial Key Laboratory of Energy Materials for Electric Power Southern University of Science and TechnologyShenzhen 518055People’s Republic of China Ministry of Education Key Laboratory of Advanced Textile Composite Materials Tiangong UniversityTianjin 300387People’s Republic of China

The rapid development of communication technology and high-frequency electronic devices has created a need for more advanced electromagnetic interference(EMI)shielding *** response to this demand,a study has been conducted to develop multifunctional carbon nanofibers(CNFs)/polyaniline(PANI)aerogels with excellent electromagnetic interference shielding,flame retardancy,and thermal insulation *** process involved freeze-drying of electrospun CNFs and PANI nanoparticles followed by in situ growth PANI to coat the CNFs,creating the core-shell structured CNFs/PANI composite fiber and its hybrid aerogels(CP-3@PANI).The interaction between PANI and aniline(ANI)provides attachment sites,allowing additional ANI adsorption into the aerogel for in situ *** results in PANI uniformly covering the surface of the CNFs,creating a core-shell composite fiber with a flexible CNF core and PANI *** process enhances the utilization rate of the ANI monomer and increases the PANI content loaded onto the ***,effective connections are established between the CNFs,forming a stable,conductive three-dimensional network *** prepared CP-3@PANI aerogels exhibit excellent EMI shielding efficiency(SE)of 85.4 dB and specific EMI SE(SE d^(-1))of 791.2 dB cm^(3)g^(-1)in the *** to the synergistic flame-retardant effect of CNFs,PANI,and the dopant(phytic acid),the CP-3@PANI aerogels demonstrate outstanding flame-retardant and thermal insulation properties,with a peak heat release rate(PHRR)as low as 7.8 W g^(-1)and a total heat release of only 0.58 kJ g^(-1).This study provides an effective strategy for preparing multifunctional integrated EMI shielding materials.

关键词： CNFs/PANI hybrid aerogels EMI shielding Flame retardancy Thermal insulation

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PtPdAg nanotrees with low Pt content for high CO tolerance within formic acid and methanol electrooxidation

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Rare Metals 2025年第1期44卷 300-310页

作者： Yu-Fei Wang Shou-Lin Zhang Yu-Xin Deng Shi-Han Luan Cai-Kang Wang Lin-Fei Ding Xian Jiang Dong-Mei Sun Ya-Wen Tang Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Centre of Biomedical Functional MaterialsSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023China School of New Energy Nanjing University of Science and TechnologyJiangyin 214443China Advanced Analysis and Testing Center Nanjing Forestry UniversityNanjing 210037China

To efficiently diminish the Pt consumption while concurrently enhancing the anodic reaction kinetics,a straightforward synthesis for PtPdAg nanotrees(NTs)with exceedingly low Pt content is presented,utilizing the galvanic replacement reaction between the initially prepared PdAg NTs and Pt *** to the multilevel porous tree-like structure and the incorporation of low amounts of Pt,the electrocatalytic activity and stability of PtPdAg NTs are markedly enhanced,achieving 1.65 and 1.69 A·mg^(-1)Pt+Pd for the anodic reactions of formic acid oxidation(FAOR)and methanol oxidation(MOR)within DLFCs,surpassing the performance of PdAg NTs,as well as that of commercial Pt and Pd *** functional theory(DFT)calculations reveal that the addition of low amounts of Pt leads to an increase in the d-band center of PtPdAg NTs and lower the COads adsorption energy to-1.23 eV,enhancing the anti-CO toxicity properties *** approach offers an effective means for designing low Pt catalysts as exceptional anodic electrocatalysts for direct liquid fuel cells.

关键词： PtPdAg nanotrees Low Pt Bifunctional electrocatalysts Methanol oxidation reaction Formic acid oxidation

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