ACS Applied Energy Materials最新文献

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Electrochemical Coinsertion of Magnesium and Lithium Ions with Silicon Anode: An Integrated Experiment and Finite Element Simulation Approach 镁锂离子与硅阳极的电化学共插:综合实验与有限元模拟方法
IF 5.5 3区 材料科学
ACS Applied Energy Materials Pub Date : 2025-09-05 DOI: 10.1021/acsaem.5c02147
Zicheng Yang, , , Saida S. Cora, , , Vincent Briselli, , and , Niya Sa*, 
{"title":"Electrochemical Coinsertion of Magnesium and Lithium Ions with Silicon Anode: An Integrated Experiment and Finite Element Simulation Approach","authors":"Zicheng Yang,&nbsp;, ,&nbsp;Saida S. Cora,&nbsp;, ,&nbsp;Vincent Briselli,&nbsp;, and ,&nbsp;Niya Sa*,&nbsp;","doi":"10.1021/acsaem.5c02147","DOIUrl":"https://doi.org/10.1021/acsaem.5c02147","url":null,"abstract":"<p >Silicon is one of the most promising anode materials for high-capacity lithium-ion batteries. Introducing binary cations with a small amount of Mg<sup>2+</sup> into the Li-ion electrolyte has shown promising outcomes in stabilizing Si. However, the mechanisms by which a binary cation matrix enhances the anode stability remain unclear. In this work, the insertion kinetics and quasi-equilibrium potential of Si in a binary cation electrolyte matrix containing Li<sup>+</sup> and Mg<sup>2+</sup> are thoroughly investigated, and results from finite-element simulations reveal that the Mg<sup>2+</sup> coinsertion process is electrochemically favorable in a Li-rich environment of Si. Li-rich conditions with a total state of charge (SOC) &gt;89.4% facilitate the Mg coinsertion process, whereas Li-poor environments are less favorable for Mg coinsertion. Findings from this work unveil the electrochemical coinsertion mechanisms of Mg and Li with Si, offering valuable guidance for the design of high-capacity batteries.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13797–13807"},"PeriodicalIF":5.5,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modulating Charge Carrier Dynamics through Selective Surface Deposition of a CdS Layer to Boost the Performance of AgBiS2 Q-Dot-Sensitized Solar Cells 通过选择性表面沉积CdS层调制载流子动力学以提高AgBiS2 q点敏化太阳能电池的性能
IF 5.5 3区 材料科学
ACS Applied Energy Materials Pub Date : 2025-09-05 DOI: 10.1021/acsaem.5c01968
Dimuthumal Rajakaruna, , , Hong-yi Tan, , , Chang-Feng Yan, , and , Jayasundera Bandara*, 
{"title":"Modulating Charge Carrier Dynamics through Selective Surface Deposition of a CdS Layer to Boost the Performance of AgBiS2 Q-Dot-Sensitized Solar Cells","authors":"Dimuthumal Rajakaruna,&nbsp;, ,&nbsp;Hong-yi Tan,&nbsp;, ,&nbsp;Chang-Feng Yan,&nbsp;, and ,&nbsp;Jayasundera Bandara*,&nbsp;","doi":"10.1021/acsaem.5c01968","DOIUrl":"https://doi.org/10.1021/acsaem.5c01968","url":null,"abstract":"<p >Despite having strong photoconductivity and a high absorption coefficient in Q-dot AgBiS<sub>2</sub>, the efficiency of environmentally friendly light-harvesting AgBiS<sub>2</sub>-based solar cells remains low at 10.0%, far below the theoretically estimated 20% efficiency with a current density of 22 mA/cm<sup>2</sup> and <i>V</i><sub>oc</sub> of 980 mV. The inherent short-carrier diffusion lengths and trap-assisted recombination properties of AgBiS<sub>2</sub> nanoparticles limit its thickness to ∼60 nm, beyond which a light parasite effect decreases performance. In this study, the charge carrier dynamics of the AgBiS<sub>2</sub> nanocrystalline film were modulated to minimize trap-assisted surface recombination and improve light harvesting by selective CdS layer coating in AgBiS<sub>2</sub> nanocrystals that resulted in an increase in <i>J</i><sub>sc</sub>, <i>V</i><sub>oc</sub>, and fill factor to 15.0 mA/cm<sup>2</sup>, 0.352 V, and 47.0%, respectively, in contrast to AgBiS<sub>2</sub> without a CdS layer, which was 6.0 mA/cm<sup>2</sup>, 0.248 V, and 37.0%. The electrochemical impedance data, IPCE measurements, and analysis of open-circuit voltage decay and intensity-dependent current/voltage parameters confirmed that the enhanced device performance was mostly due to a decrease in intrinsic trap-assisted recombination and the optical spacer effect. This study uniquely demonstrates the dual role of a selectively deposited CdS layer in AgBiS<sub>2</sub> nanocrystals, which inhibits trap-assisted recombination while also acting as a scattering layer.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13695–13706"},"PeriodicalIF":5.5,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
p-Type Thermoelectricity of CrN Thin Films by Mg Doping Mg掺杂CrN薄膜的p型热电性能
IF 5.5 3区 材料科学
ACS Applied Energy Materials Pub Date : 2025-09-05 DOI: 10.1021/acsaem.5c01663
Takashi Aizawa*, , , Frank F. Yun, , and , Takao Mori*, 
{"title":"p-Type Thermoelectricity of CrN Thin Films by Mg Doping","authors":"Takashi Aizawa*,&nbsp;, ,&nbsp;Frank F. Yun,&nbsp;, and ,&nbsp;Takao Mori*,&nbsp;","doi":"10.1021/acsaem.5c01663","DOIUrl":"https://doi.org/10.1021/acsaem.5c01663","url":null,"abstract":"<p >Because of the high power factor of chromium nitride (CrN) when used in thin films, it has recently attracted widespread attention as a promising high-performance thermoelectric material. Several reports have described studies of alloying or doping of CrN thin films to control and enhance the thermoelectric properties. Most reported CrN thin films have been fabricated as n-type charge carriers. Recent reports have described that nitrogen deficiency and alloying with V or W enhance n-type behavior and increase the power factor. Although V has fewer valence electrons than Cr, it has been shown not to change the carrier polarity. Our measurements have revealed that Mg-doped CrN thin films deposited using the reactive magnetron sputtering method change the polarity to p-type charge carriers, which is consistent with our calculations. The maximum observed power factors of the fabricated ∼8% Mg-alloyed CrN thin-film samples were 0.6 mW·m<sup>–1</sup>·K<sup>–2</sup> at room temperature to 0.9 mW·m<sup>–1</sup>·K<sup>–2</sup> at approximately 550 K.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13360–13366"},"PeriodicalIF":5.5,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsaem.5c01663","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Engineering CuNd(2–x)GdxO4@CNT Interfaces for Superior Electrocatalytic Water Splitting via Extensive Active Site Generation 工程CuNd(2-x)GdxO4@CNT界面优越的电催化水裂解通过广泛的活性位点产生
IF 5.5 3区 材料科学
ACS Applied Energy Materials Pub Date : 2025-09-04 DOI: 10.1021/acsaem.5c02121
Anto Priyanka E, , , Sreenivasan Nagappan, , , J. Judith Vijaya*, , and , Subrata Kundu*, 
{"title":"Engineering CuNd(2–x)GdxO4@CNT Interfaces for Superior Electrocatalytic Water Splitting via Extensive Active Site Generation","authors":"Anto Priyanka E,&nbsp;, ,&nbsp;Sreenivasan Nagappan,&nbsp;, ,&nbsp;J. Judith Vijaya*,&nbsp;, and ,&nbsp;Subrata Kundu*,&nbsp;","doi":"10.1021/acsaem.5c02121","DOIUrl":"https://doi.org/10.1021/acsaem.5c02121","url":null,"abstract":"<p >Creation of a sustainable energy future necessitates the production of high energy density fuels like hydrogen. Ultimately, progress toward a hydrogen economy is intrinsically linked to advancements in electrocatalysts for efficient water electrolysis. In this study, CuNd<sub>(2–<i>x</i>)</sub>Gd<sub><i>x</i></sub>O<sub>4</sub> nanoparticles embedded on a CNT matrix were engineered as an efficient bifunctional electrocatalyst for total water splitting. The catalyst features a high density of active sites coupled with a significantly augmented surface area and optimized interfacial charge accumulation. These synergistic attributes promote efficient surface ion adsorption and product desorption, yielding an enhanced electrocatalytic activity. Consequently, the catalyst demonstrated robust performance, achieving overpotentials of 114 and 230 mV at 10 mA cm<sup>–2</sup> for HER and OER, respectively, while maintaining remarkable stability for 50 h. The faradaic efficiency was found to be 95.55 and 95.82% for HER and OER, respectively. The experimental investigations further substantiated the concurrent action of both AEM and LOM mechanistic pathways governing electrocatalytic water splitting over the developed catalyst. As a high-performance alkaline water electrolyzer, the bifunctional electrocatalyst required 1.61 V at 10 mA cm<sup>–2</sup>. This study contributes valuable insights into the rational design and precise tuning of electrocatalysts to optimize the performance in sustainable energy generation.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13784–13796"},"PeriodicalIF":5.5,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Complexation-Driven Design of Ultrafine Manganese Ferrocyanide-Based Electrodes for High-Performance Supercapacitors Enabling Low-Frequency Waveform Generation 能产生低频波形的高性能超级电容器用基于氰化铁锰的超细电极络合驱动设计
IF 5.5 3区 材料科学
ACS Applied Energy Materials Pub Date : 2025-09-04 DOI: 10.1021/acsaem.5c02024
Pooja Kumari, , , Chandan Saha, , , Mustafizur Hazarika, , and , Kaushik Mallick*, 
{"title":"Complexation-Driven Design of Ultrafine Manganese Ferrocyanide-Based Electrodes for High-Performance Supercapacitors Enabling Low-Frequency Waveform Generation","authors":"Pooja Kumari,&nbsp;, ,&nbsp;Chandan Saha,&nbsp;, ,&nbsp;Mustafizur Hazarika,&nbsp;, and ,&nbsp;Kaushik Mallick*,&nbsp;","doi":"10.1021/acsaem.5c02024","DOIUrl":"https://doi.org/10.1021/acsaem.5c02024","url":null,"abstract":"<p >Supercapacitors are widely recognized as essential energy storage devices because of their fast-charging capability, high power output, and excellent cycle stability. These features make them highly suitable for various applications such as electric vehicles, backup power systems, and portable electronics. In this study, manganese ferrocyanide (MFC) nanoparticles were synthesized via an organic-molecule-assisted complexation method and investigated as electrode materials for advanced supercapacitors. Structural analysis confirmed a crystalline cubic structure with Mn<sup>2+</sup> and Fe<sup>2+</sup> ions arranged in octahedral coordination. The MFC-based electrode demonstrated pseudocapacitive behavior with a specific capacitance (<i>S</i><sub><i>P</i></sub><i>C</i>) of 584 F·g<sup>–1</sup> at 5 A·g<sup>–1</sup> in a half-cell configuration. An asymmetric supercapacitor (ASC) utilizing activated carbon as the negative electrode and MFC as the positive electrode achieved a maximum <i>S</i><sub><i>P</i></sub><i>C</i> of 77 F·g<sup>–1</sup> at 1 A·g<sup>–1</sup>, with maximum energy density, <i>ED</i><sub><i>n</i></sub>, of 54 Wh·kg<sup>–1</sup> and power density, <i>PD</i><sub><i>n</i></sub>, of 6.0 kW·kg<sup>–1</sup>. The device at 2 A·g<sup>–1</sup> retained 87% of its initial <i>S</i><sub><i>P</i></sub><i>C</i> and maintained 90% Coulombic efficiency after 5000 continuous charge–discharge cycles, demonstrating the long-term durability of the device. The ASC was integrated into an oscillator circuit, demonstrating low-frequency waveform generation suitable for electronic circuit applications. The dual functionality highlights the potential of manganese ferrocyanide-based material for both energy storage and signal generation in low-power electronic systems.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13683–13694"},"PeriodicalIF":5.5,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsaem.5c02024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of Inverted Sulfurization on the Photovoltaic Properties of the Cu2Sn1–xGexS3 Absorber Layer in a Solar Cell 反向硫化对太阳能电池中Cu2Sn1-xGexS3吸收层光伏性能的影响
IF 5.5 3区 材料科学
ACS Applied Energy Materials Pub Date : 2025-09-04 DOI: 10.1021/acsaem.5c01650
Ayaka Kanai*, , , Takeshi Tasaki, , , Ryodai Ichihara, , , Kunihiko Tanaka, , and , Hideaki Araki, 
{"title":"Effects of Inverted Sulfurization on the Photovoltaic Properties of the Cu2Sn1–xGexS3 Absorber Layer in a Solar Cell","authors":"Ayaka Kanai*,&nbsp;, ,&nbsp;Takeshi Tasaki,&nbsp;, ,&nbsp;Ryodai Ichihara,&nbsp;, ,&nbsp;Kunihiko Tanaka,&nbsp;, and ,&nbsp;Hideaki Araki,&nbsp;","doi":"10.1021/acsaem.5c01650","DOIUrl":"https://doi.org/10.1021/acsaem.5c01650","url":null,"abstract":"<p >Cu<sub>2</sub>Sn<sub>1–<i>x</i></sub>Ge<sub><i>x</i></sub>S<sub>3</sub> (CTGS) is a promising material for sustainable thin-film photovoltaics owing to its tunable band gap and high absorption coefficient. To improve the efficiency of CTGS solar cells, we developed a modified sulfurization process in which CTGS films were placed in an inverted position within a graphite box. This downward configuration suppressed the surface evaporation of sulfur and tin sulfide, resulting in a more uniform surface composition than that of the conventional upward configuration. As CTGS compounds exhibit defect properties that are highly sensitive to composition, maintaining a Cu-poor surface helps to preserve favorable defect characteristics. The modified process may have contributed to suppressing the formation of Cu-rich secondary phases, which could aid in enhancing device performance. Specifically, the power conversion efficiency increased from 1.50% with the upward configuration to 4.92% in the downward configuration when <i>x</i> = 0.1. These findings highlight the importance of the sulfurization configuration and offer a promising strategy for further improving the performance of CTGS solar cells.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13350–13359"},"PeriodicalIF":5.5,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and Thermoelectric Properties of Nickel Tetrathiolate Metallopolymers 四硫酸镍金属聚合物的合成及其热电性能
IF 5.5 3区 材料科学
ACS Applied Energy Materials Pub Date : 2025-09-04 DOI: 10.1021/acsaem.5c01874
Po-Shen Lin, , , Katsuki Yaginuma, , , Yu-Chuan Liu, , , Jhih-Min Lin, , , Shih-Huang Tung, , , Hidetoshi Matsumoto, , , Minoru Ashizawa*, , and , Cheng-Liang Liu*, 
{"title":"Synthesis and Thermoelectric Properties of Nickel Tetrathiolate Metallopolymers","authors":"Po-Shen Lin,&nbsp;, ,&nbsp;Katsuki Yaginuma,&nbsp;, ,&nbsp;Yu-Chuan Liu,&nbsp;, ,&nbsp;Jhih-Min Lin,&nbsp;, ,&nbsp;Shih-Huang Tung,&nbsp;, ,&nbsp;Hidetoshi Matsumoto,&nbsp;, ,&nbsp;Minoru Ashizawa*,&nbsp;, and ,&nbsp;Cheng-Liang Liu*,&nbsp;","doi":"10.1021/acsaem.5c01874","DOIUrl":"https://doi.org/10.1021/acsaem.5c01874","url":null,"abstract":"<p >Sulfur–nickel (S–Ni) complex polymers are characterized by a planar tetra-coordinated structure in which four sulfur atoms surround a central nickel atom and exhibit stable electrical and thermal properties even in the absence of external doping. In this study, a new synthetic strategy incorporating cyanoethyl groups is employed to improve the solubility of the ligand precursors. Utilizing this approach, the following three novel S–Ni complex polymers are successfully synthesized: <b>NiTTFtt</b>, with tetrathiafulvalene (TTF) as the donor unit in the backbone, <b>NiDMTtt</b>, featuring a thiophene-inserted TTF backbone, and <b>NiDMT2tt</b>, integrating thienothiophene into the TTF backbone. As a result, the <b>NiDMTtt and NiDMT2tt each</b> exhibit bent-shaped configurations at the alkene part. To further tune the polymer composition, two alkali metal counterions (Na<sup>+</sup> and K<sup>+</sup>) are introduced, along with partial incorporation of Ni<sup>2+</sup> ions, thus resulting in the formation of six distinct S–Ni complex polymers. These materials are processed into thermoelectric pellets for performance evaluation. Among them, the <b>NiTTFtt</b> exhibits the highest electrical conductivity of 575.90 S cm<sup>–1</sup>, while the <b>NiDMTtt</b> and <b>NiDMT2tt</b> display lower electrical conductivities but higher Seebeck coefficients of up to 37.09 μV K<sup>–1</sup>. Further, the effects of doping with alkali metal ions are systematically investigated, thereby revealing a new strategy for enhancing the thermoelectric properties of S–Ni complex polymers. This work provides valuable insights into the molecular design and functional tuning of metallopolymers for high-performance thermoelectric applications.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13499–13509"},"PeriodicalIF":5.5,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsaem.5c01874","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of the Detrimental Impact of Residual Solvent in Solid Electrolyte Membranes for Sulfide All-Solid-State Batteries 固体电解质膜中残留溶剂对硫化物全固态电池的有害影响分析
IF 5.5 3区 材料科学
ACS Applied Energy Materials Pub Date : 2025-09-04 DOI: 10.1021/acsaem.5c02274
Hyeonjin Cho, , , Dongjin Sim, , , You-Jin Lee, , , Jun-Woo Park, , , Junho Park, , , Yoon-Cheol Ha, , , Jeong-Hee Choi*, , and , Heetaek Park*, 
{"title":"Analysis of the Detrimental Impact of Residual Solvent in Solid Electrolyte Membranes for Sulfide All-Solid-State Batteries","authors":"Hyeonjin Cho,&nbsp;, ,&nbsp;Dongjin Sim,&nbsp;, ,&nbsp;You-Jin Lee,&nbsp;, ,&nbsp;Jun-Woo Park,&nbsp;, ,&nbsp;Junho Park,&nbsp;, ,&nbsp;Yoon-Cheol Ha,&nbsp;, ,&nbsp;Jeong-Hee Choi*,&nbsp;, and ,&nbsp;Heetaek Park*,&nbsp;","doi":"10.1021/acsaem.5c02274","DOIUrl":"https://doi.org/10.1021/acsaem.5c02274","url":null,"abstract":"<p >Developing thin solid electrolyte membranes is critical for achieving high-energy-density batteries and typically requires a slurry-casting process. Whereas lab-scale studies generally employ vacuum drying, industrial roll-to-roll manufacturing relies on hot air drying, which can leave residual solvent in both the electrodes and the solid electrolyte membrane. Insufficient removal of this solvent can increase the cell overpotential. However, its impact on all-solid-state batteries remains underreported. In this study, we investigated the effects of residual solvent in Li<sub>6</sub>PS<sub>5</sub>Cl-based solid electrolyte membranes, quantified it by gas chromatography, and correlated the results with fast charge capability and cycle stability. The findings provide practical guidelines for optimizing solvent drying processes during the scale-up of sulfide-based, all-solid-state batteries.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13920–13928"},"PeriodicalIF":5.5,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultra-low-Dosage Lignin-Derived PHU-Enhanced PVDF Binders for High-Performance Lithium Metal Batteries 高性能锂金属电池用超低剂量木质素衍生phu增强PVDF粘结剂
IF 5.5 3区 材料科学
ACS Applied Energy Materials Pub Date : 2025-09-04 DOI: 10.1021/acsaem.5c02260
Miaoyou Li, , , Bailiang Xue*, , , Xiaojie Xie, , , Mengqi Song, , , Wenliang Wang, , , Haiwei Wu, , , Wei Zhao, , and , Weijing Chen*, 
{"title":"Ultra-low-Dosage Lignin-Derived PHU-Enhanced PVDF Binders for High-Performance Lithium Metal Batteries","authors":"Miaoyou Li,&nbsp;, ,&nbsp;Bailiang Xue*,&nbsp;, ,&nbsp;Xiaojie Xie,&nbsp;, ,&nbsp;Mengqi Song,&nbsp;, ,&nbsp;Wenliang Wang,&nbsp;, ,&nbsp;Haiwei Wu,&nbsp;, ,&nbsp;Wei Zhao,&nbsp;, and ,&nbsp;Weijing Chen*,&nbsp;","doi":"10.1021/acsaem.5c02260","DOIUrl":"https://doi.org/10.1021/acsaem.5c02260","url":null,"abstract":"<p >Lithium metal batteries (LMBs) have emerged as a pivotal next-generation energy storage technology due to their exceptional theoretical energy density. Their development faces fundamental challenges from conventional poly(vinylidene fluoride) (PVDF) binders, including high crystallinity, insufficient adhesion, and poor interfacial compatibility with electrode active materials. In this work, we developed a convenient one-pot strategy to enhance the performance of the traditional PVDF binder by using lignin-derived polyhydroxyurethane (PHU). The ultra-low-dosage (1 wt %) lignin-derived PHU-modified PVDF binder (LP1) effectively enhanced the flexible amorphous domains and interfacial adhesion, leading to significantly improved Li<sup>+</sup> transport and cyclic stability. The electrode with LP1 binder exhibited a substantially higher Li<sup>+</sup> diffusion coefficient of 3.47 × 10<sup>–14</sup> cm<sup>2</sup> s<sup>–1</sup> than that of the PVDF binder (2.05 × 10<sup>–15</sup> cm<sup>2</sup> s<sup>–1</sup>). The LP1-based battery demonstrated a capacity retention of 93.8% after 400 cycles at 1C compared to the 82.5% of the PVDF-based battery. This work not only establishes a foundation for the application of lignin-derived binders but also provides important guidance for binder design toward next-generation binder systems in advanced LMBs.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"8 18","pages":"13911–13919"},"PeriodicalIF":5.5,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pyrolysis in Molten Salts Converts Plastics into a Mesoporous Electrocatalyst with a High Density of Atomic Fe–N–C Active Site 熔融盐热解将塑料转化为具有高密度原子Fe-N-C活性位点的介孔电催化剂
IF 5.5 3区 材料科学
ACS Applied Energy Materials Pub Date : 2025-09-04 DOI: 10.1021/acsaem.5c02022
Dhilip Kanna Ashok Kumar, , , Bomin Li, , , Saurabh Prakash Pethe, , , Iddrisu B. Abdul Razak, , , Mariappan Parans Paranthaman, , and , Yingwen Cheng*, 
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