{"title":"A thermoresponsive electrolyte additive for high-energy, long-cycling, and safe lithium batteries","authors":"Yong Zeng, Fangzheng Liu, Qiao Zhang, Dejian Cheng, Yingchun Xu, Shang-Sen Chi, Xiaoxiong Xu, Chaoyang Wang, Jun Wang, Kang Xu, Yonghong Deng, Hongli Xu","doi":"10.1016/j.joule.2025.102100","DOIUrl":"https://doi.org/10.1016/j.joule.2025.102100","url":null,"abstract":"Simultaneously achieving both high energy density and intrinsic safety in lithium-based batteries remains a fundamental challenge. Here, we resolve this dilemma by designing a thermoresponsive additive that improves the electrochemical performance of the batteries at normal service temperatures, while activating safety intervention under high temperatures to avert thermal runaway. At lower temperatures below polymerization, 3-phenyl-7-(trifluoromethyl)-3,4-dihydro-2H-1,3-benzoxazine (mCF<sub>3</sub>-BA) contributes to forming a highly stable solid electrolyte interphase (SEI)/cathode electrolyte interphase (CEI) during initial charge/discharge cycles, as evidenced by the 98.1% capacity retention at the 100<sup>th</sup> cycle for a 500 mAh Li||LiNi<sub>0.8</sub>Co<sub>0.1</sub>Mn<sub>0.1</sub>O<sub>2</sub> (NCM811) pouch cell and 80% at the 800<sup>th</sup> cycle for a 1,800 mAh Si@Gr450 (mixture of Si and graphite with a designated capacity of 450 mAh g<sup>−1</sup>)||NCM811 pouch cell. At elevated temperatures upon thermal abuse, the rapid polymerization of mCF<sub>3</sub>-BA creates an insulating thermoset network that physically prevents electrode contact and chemical crosstalk. Such a mechanism elevates the thermal runaway threshold temperature (T₂) by 34.5°C and 43.9°C for 500 mAh Li||NCM811 and 1,800 mAh Si@Gr450||NCM811 lithium batteries, respectively.","PeriodicalId":343,"journal":{"name":"Joule","volume":"96 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Shear flow strategy for coating homogeneity of organic materials in perovskite solar cells and modules","authors":"You Gao, Youpeng Wang, Penghui Yang, Biao Shi, Zhen Liu, Shuainan Liu, Sihan Li, Yali Liu, Xin Ge, Pengfei Liu, Yuan Luo, Cong Sun, Xiaona Du, Pengyang Wang, Ying Zhao, Jun Shao, Xiaodan Zhang","doi":"10.1016/j.joule.2025.102098","DOIUrl":"https://doi.org/10.1016/j.joule.2025.102098","url":null,"abstract":"The non-uniformity of the perovskite layer is a critical bottleneck limiting performance improvements in large-area perovskite solar cells (PSCs). In the evaporation-solution hybrid method, the Marangoni effect occurs due to variations in local organic material concentration during the coating process, leading to material clustering and coffee-ring effects, which hinder device performance. Here, we discussed the air-blowing process during coating and identified shear flow as the key factor affecting film homogeneity. By modulating the shear flow intensity, the surface tension gradient induced by local concentration differences is adjusted, mitigating the Marangoni effect and resulting in uniform perovskite films. Consequently, perovskite/silicon tandem solar cells (PS-TSCs) achieved 27.36% efficiency (64.64 cm<sup>2</sup> aperture area), whereas perovskite modules (PSMs) reached 21.83% efficiency (810 cm<sup>2</sup> aperture area).","PeriodicalId":343,"journal":{"name":"Joule","volume":"27 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JoulePub Date : 2025-08-25DOI: 10.1016/j.joule.2025.102099
Shangwei Zhou, Wenjia Du, Bastian Mager, Paul R. Shearing, Thomas S. Miller, Rhodri Jervis
{"title":"Batch diagnosis of batteries within one second","authors":"Shangwei Zhou, Wenjia Du, Bastian Mager, Paul R. Shearing, Thomas S. Miller, Rhodri Jervis","doi":"10.1016/j.joule.2025.102099","DOIUrl":"https://doi.org/10.1016/j.joule.2025.102099","url":null,"abstract":"As demand grows for scalable and sustainable energy storage, fast and affordable diagnostics are urgently needed, especially for factory-level cell sorting and second-life assessments. Electrochemical impedance spectroscopy (EIS) is widely used but remains too slow, complex, and costly for large-scale use. This work introduces a multi-channel and multi-frequency electrical excitation response (MMER) technique that captures comparable impedance-related information at a fraction of the time and cost. MMER can diagnose entire battery modules in 1 s, regardless of cell count. It uses a binary multi-frequency excitation signal, implemented on simple hardware such as programmable logic devices. Unlike EIS, MMER avoids frequency-domain transformation and impedance fitting. Instead, it compares raw voltage responses under a shared excitation current to reveal performance variations. Experiments show MMER tracks cell health in line with EIS while reducing test time by over 99%. It supports real-time diagnostics even during high-rate cycling and extends to other electrochemical systems.","PeriodicalId":343,"journal":{"name":"Joule","volume":"27 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JoulePub Date : 2025-08-25DOI: 10.1016/j.joule.2025.102102
Samuel Johnson, Daniel Morales, Kell Fremouw, Isaac E. Gould, Tomoko Borsa, Steve Johnston, Axel Palmstrom, Ryan A. DeCrescent, Michael D. McGehee
{"title":"How non-ohmic contact-layer diodes in perovskite pinholes affect abrupt low-voltage reverse-bias breakdown and destruction of solar cells","authors":"Samuel Johnson, Daniel Morales, Kell Fremouw, Isaac E. Gould, Tomoko Borsa, Steve Johnston, Axel Palmstrom, Ryan A. DeCrescent, Michael D. McGehee","doi":"10.1016/j.joule.2025.102102","DOIUrl":"https://doi.org/10.1016/j.joule.2025.102102","url":null,"abstract":"Perovskite solar cells (PSCs) rapidly degrade under reverse bias, a condition that may occur during partial shading. Here, we use electrical measurements, electron microscopy, and optical and thermal imaging to investigate abrupt breakdown and hotspotting under low reverse potentials (<|−2| V). We show that microscopic pinholes in the perovskite layer cause rapid, destructive breakdown under reverse bias despite minimally reducing power conversion efficiencies. Measurements on miniature (200-micrometer diameter) PSCs and perovskite-free transport-layer diodes indicate that abrupt, low-voltage breakdown occurs in nanoscale to micrometer-scale defects and that metal migration and filamentation are unlikely causes. Reverse-bias stability substantially improves when pinholes in the perovskite and transport layers are eliminated. Atomic layer deposition of tin oxide prevents abrupt breakdown by ensuring physical separation between electrodes—not by blocking metal ion migration. Perovskite researchers should adopt cleaner, more uniform deposition techniques to enable robust PSCs for further research and commercial applications.","PeriodicalId":343,"journal":{"name":"Joule","volume":"23 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JoulePub Date : 2025-08-21DOI: 10.1016/j.joule.2025.102074
Xinyang Che, Lijun Liu, Wei He
{"title":"Assess space-based solar power for European-scale power system decarbonization","authors":"Xinyang Che, Lijun Liu, Wei He","doi":"10.1016/j.joule.2025.102074","DOIUrl":"https://doi.org/10.1016/j.joule.2025.102074","url":null,"abstract":"Meeting net-zero targets is challenging, as terrestrial renewables face intermittency and regional constraints. Here, we assess space-based solar power, a near-constant source, using a high-resolution, Europe-wide capacity-expansion and dispatch model. We assess two advanced designs: (1) a near-baseload, low-TRL (technology readiness level) heliostat design and (2) a partially intermittent, higher-TRL planar design, using NASA’s 2050 forecast. We find that the heliostat design can cut total system costs by 7%–15%, offset up to 80% of wind and solar, and reduce battery usage by over 70%, although hydrogen remains vital for seasonal balancing. The planar design, by contrast, is uneconomical at its forecast costs. Sensitivity analyses reveal relative cost thresholds for both designs, at which space-based solar shifts from cost-prohibitive to complementary and ultimately to a dominant baseload source for net-zero transitions. These results provide robust techno-economic benchmarks, highlighting new net-zero pathways and guiding policymakers and industry toward large-scale, low-intermittency renewables.","PeriodicalId":343,"journal":{"name":"Joule","volume":"17 1","pages":""},"PeriodicalIF":39.8,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144901300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Acidified gas phase enables long-term stable CO2 electrolysis","authors":"Yixin Chen , Xingyu Ding , Zuxin Wen , Xianbiao Fu","doi":"10.1016/j.joule.2025.102095","DOIUrl":"10.1016/j.joule.2025.102095","url":null,"abstract":"<div><div>In a recent issue of <em>Science</em>, Hao et al. reported a highly effective “acid-humidification” strategy, utilizing volatile acid vapors to mitigate salt precipitation during electrochemical CO<sub>2</sub> reduction. This method enabled 100 cm<sup>2</sup> electrolyzers to operate for over 4,500 h at 100 mA cm<sup>−2</sup>, advancing practical CO<sub>2</sub> electroreduction technologies.</div></div>","PeriodicalId":343,"journal":{"name":"Joule","volume":"9 8","pages":"Article 102095"},"PeriodicalIF":35.4,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144863286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JoulePub Date : 2025-08-20DOI: 10.1016/j.joule.2025.102094
Yuanyuan Xue , Gengfeng Zheng
{"title":"Efficient electroreduction of CO2 to C3+ chemicals by a formaldehyde condensation mechanism","authors":"Yuanyuan Xue , Gengfeng Zheng","doi":"10.1016/j.joule.2025.102094","DOIUrl":"10.1016/j.joule.2025.102094","url":null,"abstract":"<div><div>The CO<sub>2</sub> electroreduction is promising for mitigating carbon emissions and producing value-added chemicals, but the direct CO<sub>2</sub>-to-C<sub>3+</sub> conversion has still remained highly challenging. A recent report in <em>Nature Catalysis</em> demonstrated a reconstructed CuP<sub>2</sub> catalyst for efficient CO<sub>2</sub> electroreduction to C<sub>3+</sub> products and proposed a new formaldehyde condensation coupling mechanism.</div></div>","PeriodicalId":343,"journal":{"name":"Joule","volume":"9 8","pages":"Article 102094"},"PeriodicalIF":35.4,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144863285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JoulePub Date : 2025-08-20DOI: 10.1016/j.joule.2025.102010
Yunhong Che , Vivek N. Lam , Jinwook Rhyu , Joachim Schaeffer , Minsu Kim , Martin Z. Bazant , William C. Chueh , Richard D. Braatz
{"title":"Diagnostic-free onboard battery health assessment","authors":"Yunhong Che , Vivek N. Lam , Jinwook Rhyu , Joachim Schaeffer , Minsu Kim , Martin Z. Bazant , William C. Chueh , Richard D. Braatz","doi":"10.1016/j.joule.2025.102010","DOIUrl":"10.1016/j.joule.2025.102010","url":null,"abstract":"<div><div><span>Diverse usage patterns induce complex and variable aging behaviors in lithium-ion batteries, complicating accurate health diagnosis and prognosis. In this work, we leverage portions of operational measurements from charging or dynamic discharging in combination with an interpretable machine learning model to enable rapid, onboard battery health diagnostics and prognostics without offline diagnostic testing and access to </span>historical data<span>. We integrate mechanistic constraints derived from differential voltage analysis within an encoder-decoder to extract electrode health states in a physically interpretable latent space, which enables improved reconstruction of the degradation path with onboard aging mechanisms tracking. The diagnosis model can be flexibly applied across diverse applications with slight fine-tuning. We demonstrate the model’s versatility by applying it to three battery-cycling datasets consisting of 422 cells under different operating conditions, with a mean absolute error of less than 2% for health diagnosis under varying conditions, highlighting the utility of an interpretable, diagnostic-free model.</span></div></div>","PeriodicalId":343,"journal":{"name":"Joule","volume":"9 8","pages":"Article 102010"},"PeriodicalIF":35.4,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144516176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JoulePub Date : 2025-08-20DOI: 10.1016/j.joule.2025.102051
Wanjie Song , Xiaolin Ge , Liang Wu , Zhengjin Yang , Tongwen Xu
{"title":"Bottlenecks of commercializing anion exchange membranes for energy devices","authors":"Wanjie Song , Xiaolin Ge , Liang Wu , Zhengjin Yang , Tongwen Xu","doi":"10.1016/j.joule.2025.102051","DOIUrl":"10.1016/j.joule.2025.102051","url":null,"abstract":"<div><div>Anion exchange membranes (AEMs) enable the selective transport of anions, playing a crucial role in renewable electrochemical energy conversion technologies. Recent decades have witnessed significant breakthroughs in AEM design strategies, synthesis methodologies, and performance optimization. Unfortunately, moving from fundamental research to commercialization remains a huge challenge despite the great market demand for AEM. In this review, we first discuss the current technological requirements and analyze the state of AEM. Then, we focus on the bottlenecks encountered and solved in scaling up chemical reactions and implementing roll-to-roll (R2R) manufacturing processes. Finally, we prospect the future development of commercial AEM from the monomer structure-membrane stability relationships, mechanism understanding in amplification polymerization, and environment and cost-effectiveness assessments. This comprehensive analysis aims to bridge the gap between fundamental research and the commercialization of AEM and to accelerate the deployment of AEM in relevant technologies.</div></div>","PeriodicalId":343,"journal":{"name":"Joule","volume":"9 8","pages":"Article 102051"},"PeriodicalIF":35.4,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144701796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JoulePub Date : 2025-08-20DOI: 10.1016/j.joule.2025.102007
Yeongju Jung , Seongmin Jeong , Gyu Heo , Kyung Rok Pyun , Seok Hwan Choi , Junhyuk Bang , Jae Gun Lee , Hongchan Kim , Jaeho Shin , Sukjoon Hong , Jinwoo Lee , Daeyeon Won , Jaeman Song , Seung Hwan Ko
{"title":"Monolithic integration of radiative cooling and solar heating functionalities by laser-induced pyrolysis","authors":"Yeongju Jung , Seongmin Jeong , Gyu Heo , Kyung Rok Pyun , Seok Hwan Choi , Junhyuk Bang , Jae Gun Lee , Hongchan Kim , Jaeho Shin , Sukjoon Hong , Jinwoo Lee , Daeyeon Won , Jaeman Song , Seung Hwan Ko","doi":"10.1016/j.joule.2025.102007","DOIUrl":"10.1016/j.joule.2025.102007","url":null,"abstract":"<div><div>Conventional thermal management systems contribute significantly to environmental challenges, motivating the exploration of zero-energy techniques such as radiative cooling and solar heating. In this study, an innovative strategy is introduced to transform transparent polydimethylsiloxane into a versatile material via laser-induced pyrolysis. By precisely controlling laser intensity, the material is engineered for multi-thermal management, exhibiting high reflectivity and thermal emission for effective cooling under high-energy processing and strong solar absorption for notable heating under low-energy conditions. Simulation results indicate that applying this material to building roofs could reduce annual energy consumption by up to 26.5%. Moreover, its capability to form Janus structures and all-laser-patterned solar thermoelectric devices highlights its potential for sustainable technologies. This work represents a pioneering strategy in sustainable thermal management for cooling and heating, demonstrating a novel use of a monolith material and a facile fabrication technique and offering a promising solution to global environmental challenges.</div></div>","PeriodicalId":343,"journal":{"name":"Joule","volume":"9 8","pages":"Article 102007"},"PeriodicalIF":35.4,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144516180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}