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Recent Development and Modification of Perovskite-Based CO2 Electrolysis Solid Oxide Electrolysis Cell Cathode. 钙钛矿基CO2电解固体氧化物电解电池阴极的研究进展与改进。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-10-16 DOI: 10.1002/cssc.202501327
Xu Han, Cancan Peng, Sebete Mabaleha, Yao Zheng, Xiaoyong Xu
{"title":"Recent Development and Modification of Perovskite-Based CO<sub>2</sub> Electrolysis Solid Oxide Electrolysis Cell Cathode.","authors":"Xu Han, Cancan Peng, Sebete Mabaleha, Yao Zheng, Xiaoyong Xu","doi":"10.1002/cssc.202501327","DOIUrl":"https://doi.org/10.1002/cssc.202501327","url":null,"abstract":"<p><p>Electrochemical reduction reaction of carbon dioxide (CO<sub>2</sub>RR) to carbon monoxide (CO) via high-temperature solid oxide electrolysis cells (SOECs) offers a promising pathway for reducing carbon dioxide emissions and achieving carbon neutrality, addressing critical challenges in climate change mitigation and sustainable energy transition. However, the commercialization of this technology is still hindered by poor cathode activity and cathode degradation. This review provides a comprehensive overview of the cathode materials for CO<sub>2</sub>RR to CO in SOECs, with a particular focus on perovskite-based cathodes, their modification strategies, and recent research advances. The thermodynamic fundamentals of CO<sub>2</sub> reduction and the mechanistic pathways of CO<sub>2</sub> conversion on perovskite surfaces are summarized. Various perovskite cathode materials and their corresponding electrochemical performances achieved through different modification approaches are reviewed. Furthermore, the influence factors, including temperature, applied potential, CO<sub>2</sub> feeding concentration, and electrode thickness, on SOEC performance highlighted in detail. Recent progress in the exploration of large-scale applications for high-temperature CO<sub>2</sub> electrolysis is also discussed. Finally, the major challenges and future perspectives in this field are outlined. This review provides a comprehensive understanding of the current state of research on perovskite-based SOEC cathodes and offers valuable insights into the further development and practical application of SOEC technologies.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501327"},"PeriodicalIF":6.6,"publicationDate":"2025-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145306462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efficient Integration of 5-Hydroxymethylfurfural Oxidation to 2,5-Furandicarboxylic Acid with Electrochemical Reduction of CO2 to Tunable Syngas Production in a Flow Cell. 5-羟甲基糠醛氧化为2,5-呋喃二羧酸的高效集成与电化学还原CO2在流动电池中的可调合成气生产。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-10-16 DOI: 10.1002/cssc.202502122
Moritz Lukas Krebs, Anil Kumar Sihag, Eko Budiyanto, Harun Tüysüz, Christian M Pichler, Ferdi Schüth
{"title":"Efficient Integration of 5-Hydroxymethylfurfural Oxidation to 2,5-Furandicarboxylic Acid with Electrochemical Reduction of CO<sub>2</sub> to Tunable Syngas Production in a Flow Cell.","authors":"Moritz Lukas Krebs, Anil Kumar Sihag, Eko Budiyanto, Harun Tüysüz, Christian M Pichler, Ferdi Schüth","doi":"10.1002/cssc.202502122","DOIUrl":"https://doi.org/10.1002/cssc.202502122","url":null,"abstract":"<p><p>Pairing electrochemical CO<sub>2</sub> reduction (CO<sub>2</sub>RR) with the oxygen evolution reaction (OER) significantly limits overall system efficiency due to the high energy demand of the OER and low product value. Here, a scalable electrochemical platform is present that couples CO<sub>2</sub>RR with the oxidation of 5-hydroxymethylfurfural (HMF) to the high-value product 2,5-furandicarboxylic acid (FDCA). Using a bimetallic FeCo-modified Ni-anode, prepared via a Fenton-like surface treatment, achieves >95% FDCA yield and Faradaic efficiency under industrially relevant conditions by oxidizing stable Cannizzaro-derived intermediates. Integration with CO<sub>2</sub>RR in an electrochemical flow cell enables syngas production with tunable H<sub>2</sub>/CO ratios (0.1-4) and >92% overall Faradaic efficiency. Simultaneously, FDCA is produced at the anode with ≈89% Faradaic efficiency and yields exceeding 90%. Economic analysis indicates an 11-12% improvement in overall energy efficiency, with FDCA contributing more than 96% of the system revenue. This work establishes a scalable, energy-efficient platform for concurrent CO<sub>2</sub> utilization and biomass upgrading, advancing sustainable electrochemical production.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202502122"},"PeriodicalIF":6.6,"publicationDate":"2025-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrochemical CO2 Capture, Release, and Reduction by a Benzothiadiazole Molecule with Multiple Redox States. 具有多种氧化还原状态的苯并噻唑分子的电化学CO2捕获、释放和还原。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-10-16 DOI: 10.1002/cssc.202501724
Martin Axelsson, Carlos Enrique Torres-Mendez, Mun Hon Cheah, Haining Tian
{"title":"Electrochemical CO<sub>2</sub> Capture, Release, and Reduction by a Benzothiadiazole Molecule with Multiple Redox States.","authors":"Martin Axelsson, Carlos Enrique Torres-Mendez, Mun Hon Cheah, Haining Tian","doi":"10.1002/cssc.202501724","DOIUrl":"https://doi.org/10.1002/cssc.202501724","url":null,"abstract":"<p><p>Using small organic molecular redox carriers to reversibly capture CO<sub>2</sub> and convert it to carbon-based chemicals is a promising approach to mitigate the ongoing climate crisis. 2,1,3-benzothiadiazole (BT) is an interesting unit due to its proven interaction with CO<sub>2</sub> upon reduction and the ease of tuning its structure. In this work, by introducing two CN in BT, the molecule 2,1,3-benzothiadiazole-4,7-dicarbonitrile (BTDN) has multiple reduced states as compared to BT and is found to interact with CO<sub>2</sub> at multiple reduced states. The work is carried out with a combination of (spectro-)electrochemical and computational studies. Cyclic voltammetry experiments in the presence of CO<sub>2</sub> show a clear interaction between BTDN and CO<sub>2</sub> upon the second reduction of BTDN and a large current increase at the third reduction. Density functional theory calculations prove a large variety of possible CO<sub>2</sub>-bound species that can match the experimental data. The binding of CO<sub>2</sub> on BTDN is found to be reversible upon the oxidation of the species, especially with low concentrations of CO<sub>2</sub>. From NMR and IR experiments, certain amount of reduced product - oxalate is detected after bulk electrolysis at the third reduction potential in the presence of CO<sub>2</sub>, showing the potential toward electrocatalysis after structural tuning and systematical optimization.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501724"},"PeriodicalIF":6.6,"publicationDate":"2025-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
One-Step Extreme Delignification to Simultaneously Produce High-Purity Cellulose and Phenolated Lignin. 一步极端脱木质素同时生产高纯度纤维素和酚化木质素。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-10-16 DOI: 10.1002/cssc.202501445
Yongchao Zhang, Ruijie Wu, Shuzhen Ni, Xiaoqian Chen, Zhaojiang Wang, Zongquan Li, Yingjuan Fu, Menghua Qin, Chunlin Xu
{"title":"One-Step Extreme Delignification to Simultaneously Produce High-Purity Cellulose and Phenolated Lignin.","authors":"Yongchao Zhang, Ruijie Wu, Shuzhen Ni, Xiaoqian Chen, Zhaojiang Wang, Zongquan Li, Yingjuan Fu, Menghua Qin, Chunlin Xu","doi":"10.1002/cssc.202501445","DOIUrl":"https://doi.org/10.1002/cssc.202501445","url":null,"abstract":"<p><p>Current forest product strategies, involving cooking and multistage bleaching processes, primarily focus on producing high-quality (e.g., high brightness) cellulose fibers, generating low-quality lignin that is typically burnt for energy production. Here, a formic acid-phenol-water system (FP) for achieving extreme delignification is developed, simultaneously producing high-purity/brightness cellulose pulp fiber and phenolated lignin directly from lignocellulosic biomass. The strategy allows to establish a competitive reaction mechanism by introducing active phenol to replace lignin fragments and to react preferentially with lignin-reactive intermediates, enhancing the lignin removal rate while avoiding its condensation. The directly produced cellulose pulp with superior purity enables it to be adapted to different application areas, e.g., dissolving pulp for textile. Importantly, the in situ phenolated lignin from FP fractionation possesses high reactivity and can be directly considered as bioadhesive for plywood production. This efficient one-pot fractionation process demonstrates a sustainable pathway for building an economic and environmental biorefinery platform.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501445"},"PeriodicalIF":6.6,"publicationDate":"2025-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Highly Selective Photocatalytic Conversion of 5-Hydroxymethylfurfural to 2,5-Diformylfuran by ZnS Nanocrystals. ZnS纳米晶体高选择性光催化5-羟甲基糠醛转化为2,5-二甲酰呋喃。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-10-16 DOI: 10.1002/cssc.202501489
Zhenhuan Wei, Jianling Zhang, Meiling Li, Yingzhe Zhao, Haoxiang Wang, Changzhi Li, Qingli Qian, Buxing Han, Qian Li, Jing Tai
{"title":"Highly Selective Photocatalytic Conversion of 5-Hydroxymethylfurfural to 2,5-Diformylfuran by ZnS Nanocrystals.","authors":"Zhenhuan Wei, Jianling Zhang, Meiling Li, Yingzhe Zhao, Haoxiang Wang, Changzhi Li, Qingli Qian, Buxing Han, Qian Li, Jing Tai","doi":"10.1002/cssc.202501489","DOIUrl":"https://doi.org/10.1002/cssc.202501489","url":null,"abstract":"<p><p>The photocatalytic oxidation of 5-hydroxymethylfurfural (5-HMF) to 2,5-diformylfuran (DFF) is very attractive for its economic and environmental values. How to improve the selectivity to DFF and suppress the deep oxidation to by-products (e.g., 5-formyl-2-furancarboxylic acid, 2,5-furandicarboxylic acid, and maleic acid) is challenging. Here, the utilization of ZnS nanocrystals (7-8 nm) is proposed with different crystalline structures for the photocatalytic oxidation of 5-HMF to DFF. By using the cubic ZnS nanocrystals, the selectivity and yield of DFF can both reach 99%. The underlying mechanism for the high performance of cubic ZnS nanocrystals is studied by combination of photoelectric properties, quenching experiments, in situ electron spin resonance measurements, and theoretical calculations. It is found that the cubic ZnS nanocrystals have medium ability for both adsorbing and activating O<sub>2</sub>, thus suppressing the deep oxidation of 5-HMF to by-products and improving the DFF selectivity.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501489"},"PeriodicalIF":6.6,"publicationDate":"2025-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145306520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanoflower Balls Loaded with Nonprecious Metals Efficient Resist Photocorrosion for Photocatalytic Hydrogen Evolution. 负载非贵金属的纳米花球光催化析氢高效抗光腐蚀。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-10-15 DOI: 10.1002/cssc.202501761
Bolin Yang, Fei Jin, Zhiliang Jin, Noritatsu Tsubaki
{"title":"Nanoflower Balls Loaded with Nonprecious Metals Efficient Resist Photocorrosion for Photocatalytic Hydrogen Evolution.","authors":"Bolin Yang, Fei Jin, Zhiliang Jin, Noritatsu Tsubaki","doi":"10.1002/cssc.202501761","DOIUrl":"https://doi.org/10.1002/cssc.202501761","url":null,"abstract":"<p><p>The production of hydrogen via solar driven photocatalytic water splitting represents a promising pathway to green energy. In this study, the promising bimetallic sulfide Zn<sub>2</sub>In<sub>2</sub>S<sub>5</sub> is chosen to break through its inherent performance limitations. Loading the cocatalyst NiMoS<sub>4</sub> encapsulated by nanoflower spheres of Zn<sub>2</sub>In<sub>2</sub>S<sub>5</sub> has the property of significantly inhibiting photocorrosion. The hydrogen evolution rate of the NiMoS<sub>4</sub>/ Zn<sub>2</sub>In<sub>2</sub>S<sub>5</sub> composite under simulated sunlight is 5.64 mmol g<sup>-1</sup> h<sup>-1</sup>, which is three times higher than that of the main catalyst Zn<sub>2</sub>In<sub>2</sub>S<sub>5</sub>. It is derived from physical phase analytical characterization, photoelectrochemical characterization and density functional theory computational simulation, confirming that the introduction of the NiMoS<sub>4</sub> cocatalyst is a key factor in enhancing the efficiency of the hydrogen evolution reaction by promoting the electron enrichment effect and increasing the catalytically active sites. It is aimed to synergistically enhance the photogenerated carrier separation efficiency and facilitate the conversion of solar energy into chemical energy, providing inspiration for developing efficient and stable photocatalyst systems.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501761"},"PeriodicalIF":6.6,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electro-Stimulated Dual-Species Catalysis Enables CO2 Fixation Toward Selective 1,4-Butanedioic Acid Biosynthesis. 电刺激双物种催化使CO2固定选择性1,4-丁二酸生物合成。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-10-15 DOI: 10.1002/cssc.202501802
Triya Mukherjee, Venkata Mohan S
{"title":"Electro-Stimulated Dual-Species Catalysis Enables CO<sub>2</sub> Fixation Toward Selective 1,4-Butanedioic Acid Biosynthesis.","authors":"Triya Mukherjee, Venkata Mohan S","doi":"10.1002/cssc.202501802","DOIUrl":"https://doi.org/10.1002/cssc.202501802","url":null,"abstract":"<p><p>Succinic acid (SA)/1,4-Butanedioic acid is a key platform-chemical with broad industrial relevance, yet its biocatalytic production is constrained by redox imbalance, by-product accumulation, and limited CO<sub>2</sub> sequestration. This study overcomes the above limitations and enhanced the SA production (0.6 g g<sup>-1</sup>; 6 g L<sup>-1</sup>) by dual-species catalysis using Citrobacter amalonaticus (NCIM 5782, CA) and Bacillus subtilis (BS, NCIM 5781), in a bioelectrocatalytic system. Comprehensive gene-expression-profiling revealed upregulation of phosphoenolpyruvate carboxylase (ppc/PPC) in CA and pyruvate carboxylase (pyc/PYC) in BS, reflecting intensified carboxylation activity via the reductive tricarboxylic acid pathway. Protein/structural modeling/docking of PPC and PYC demonstrated enhanced catalytic-site exposure under electro-fermentative co-culture conditions, correlating with greater carboxylation efficacy. Notably, beyond extracellular-CO<sub>2</sub> fixation, intracellular-CO<sub>2</sub> sequestration is also evident, as indicated by a marked enrichment of H<sub>2</sub> in the biogas produced during dual-species-catalysis compared to monoculture systems. Thermodynamic and electrochemical evaluation indicated greater stability and electron flow in co-culture reactors (R9:ΔG = -42.29 kJ) compared to monocultures. Collectively, this study presents a scalable hybrid bioelectrochemical strategy leveraging species-specific metabolic roles and electron-steering to facilitate high-yield, selective SA production, offering a promising blueprint for sustainable carbon-based biomanufacturing.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501802"},"PeriodicalIF":6.6,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nb Doping Enhancing Structure Stability and High-Temperature Electrochemical Performances of LiFe0.5Mn0.5PO4 Cathode Material in Lithium-Ion Batteries. 铌掺杂提高锂离子电池正极材料LiFe0.5Mn0.5PO4结构稳定性及高温电化学性能
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-10-15 DOI: 10.1002/cssc.202501321
Danfeng Zhang, Jiaxiu Sun, Zhiqi Ren, Yuhang Wang, Zongsheng Qiu, Jianwen Yang, Yongbin He, Meng Qin, Fei Sun, Lianming Zhang, Bin Huang, Yanwei Li, Shunhua Xiao
{"title":"Nb Doping Enhancing Structure Stability and High-Temperature Electrochemical Performances of LiFe<sub>0.5</sub>Mn<sub>0.5</sub>PO<sub>4</sub> Cathode Material in Lithium-Ion Batteries.","authors":"Danfeng Zhang, Jiaxiu Sun, Zhiqi Ren, Yuhang Wang, Zongsheng Qiu, Jianwen Yang, Yongbin He, Meng Qin, Fei Sun, Lianming Zhang, Bin Huang, Yanwei Li, Shunhua Xiao","doi":"10.1002/cssc.202501321","DOIUrl":"https://doi.org/10.1002/cssc.202501321","url":null,"abstract":"<p><p>The application of LiFe<sub>1-y</sub>Mn<sub>y</sub>PO<sub>4</sub> (0 < y < 1) cathode materials with high voltage and high specific energy for lithium-ion batteries is restrained by capacity decay, structure degradation, and low Li<sup>+</sup>/electronic conductivity, especially at high temperature. In this study, the Nb<sup>5+</sup>-doped olivine-structured LiFe<sub>0.5</sub>Mn<sub>0.5-x</sub>Nb<sub>x</sub>PO<sub>4</sub> (LFMP-xNb, x = 0%, 0.5%, 1%, 2%, and 3%) are synthesized and characterized using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, infrared spectroscopy, X-ray photoelectron spectroscopy, and electrochemical techniques. The lattice parameters (a, b, c, and V), PO and TMO bond lengths, and particle size are reduced with Nb doping, and the structure stability, electronic/Li<sup>+</sup> transport rate, and electrochemical performances are improved. The preferred LFMP-1%Nb sample delivers an initial discharge specific capacity of 160.57 mAh g<sup>-1</sup> at 0.1 C with a coulombic efficiency of 91.38%, and a specific capacity of 91.23 mAh g<sup>-1</sup> at 10 C, and a capacity retention rate of 78.71% with a residual capacity of 106.10 mAh g<sup>-1</sup> after 1000 cycles at 1 C. Especially at 55 °C temperature, it can give a discharge specific capacity of 142.9 mAh g<sup>-1</sup> and a capacity retention rate of 73.14% after 1000 cycles at 1 C.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501321"},"PeriodicalIF":6.6,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-Performance Poly(ethylene Oxide)-Based Composite Solid Electrolyte with Enhanced Room-Temperature Ionic Conductivity for Lithium-Metal Batteries. 具有增强锂金属电池室温离子电导率的高性能聚环氧乙烷基复合固体电解质。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-10-14 DOI: 10.1002/cssc.202500794
Guoxu Wang, Qinghua Liu, Shang-Sen Chi, Qiujun Wang
{"title":"High-Performance Poly(ethylene Oxide)-Based Composite Solid Electrolyte with Enhanced Room-Temperature Ionic Conductivity for Lithium-Metal Batteries.","authors":"Guoxu Wang, Qinghua Liu, Shang-Sen Chi, Qiujun Wang","doi":"10.1002/cssc.202500794","DOIUrl":"https://doi.org/10.1002/cssc.202500794","url":null,"abstract":"<p><p>Poly(ethylene oxide) (PEO)-based solid-state polymer electrolytes have emerged as one of the most promising candidates for high-energy-density lithium-metal batteries in energy storage applications. However, their notably low ionic conductivity has significantly hindered PEO-based polymer electrolytes' practical application and development, particularly at room temperature (RT). To address the critical challenge of low RT ionic conductivity in PEO-based solid-state electrolytes, this study develops a composite solid electrolyte (CSE) synergistically reinforced by high-concentration lithium salts and Al<sub>2</sub>O<sub>3</sub> filler. The \"polymer-in-salt\" strategy disrupts PEO crystallinity via concentrated Li salt to form continuous ion channels, while Al<sub>2</sub>O<sub>3</sub> further suppresses crystallization and bridges ionic cluster transport. This dual optimization achieves an ultrahigh ionic conductivity of 9.62 × 10<sup>-4</sup> S cm<sup>-1</sup> and a 4.8 V electrochemical stability window at RT. The Li symmetric cell exhibits stable cycling for 1000 h at 1 mA cm<sup>-2</sup>/1 mAh cm<sup>-2</sup>, and the all-solid-state Li//LiFePO<sub>4</sub> coin cell retains 70.7% capacity after 300 cycles at 0.1C. Moreover, Li//LiFePO<sub>4</sub> pouch cell maintains 96.4% capacity over 100 cycles at RT. This work establishes a new paradigm for material design and performance enhancement in practical solid-state lithium batteries.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202500794"},"PeriodicalIF":6.6,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145290501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimized Thermal Treatment of Lithium-Ion Battery Components as a Basis for Sustainable Pyrometallurgy. 锂离子电池部件的优化热处理是可持续热冶金的基础。
IF 6.6 2区 化学
ChemSusChem Pub Date : 2025-10-14 DOI: 10.1002/cssc.202501753
Anna Pražanová, Jan Kočí, Jonáš Uřičář, Dominik Pilnaj, Daniel-Ioan Stroe, Vaclav Knap
{"title":"Optimized Thermal Treatment of Lithium-Ion Battery Components as a Basis for Sustainable Pyrometallurgy.","authors":"Anna Pražanová, Jan Kočí, Jonáš Uřičář, Dominik Pilnaj, Daniel-Ioan Stroe, Vaclav Knap","doi":"10.1002/cssc.202501753","DOIUrl":"https://doi.org/10.1002/cssc.202501753","url":null,"abstract":"<p><p>The escalating global demand for lithium-ion batteries necessitates efficient and sustainable end-of-life management. Major recycling routes such as pyrometallurgy and hydrometallurgy offer promising paths for metal recovery, but their efficiency often depends on the pretreatment of spent batteries. However, optimizing low-temperature pretreatment for complete organic removal while preserving active material integrity remains challenging. This study investigated thermal decomposition and surface changes of key battery components-lithium nickel manganese cobalt oxide (NMC622) cathode, graphite anode, and polymeric separator-from 100 to 800 °C, focusing on the 400-650 °C industrial interval. Material responses were characterized using thermo-gravimetric analysis coupled with mass spectrometry, isothermal mass loss, and scanning electron microscopy with energy-dispersive X-ray spectroscopy. A 500 °C treatment was identified as optimal, enabling complete organic carbon removal within 1 h without compromising the NMC spinel structure or current collector degradation. This precise control reduces energy consumption and mitigates hazardous gas release, enhancing environmental sustainability and providing a practical, scalable, and cost-effective strategy for improving battery recycling. These findings help to define the parameters for efficient electroactive material separation. This work advances the understanding of low-temperature thermal pretreatment for battery recycling, supporting a circular economy for critical materials.</p>","PeriodicalId":149,"journal":{"name":"ChemSusChem","volume":" ","pages":"e202501753"},"PeriodicalIF":6.6,"publicationDate":"2025-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145285172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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