ACS Energy Letters 最新文献

Li2FeCl4 as a Cost-Effective and Durable Cathode for Solid-State Li-Ion Batteries 将 Li2FeCl4 用作固态锂离子电池具有成本效益且经久耐用的阴极

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-10-21 DOI: 10.1021/acsenergylett.4c02376

Zhantao Liu, Guangxing Zhang, Jakub Pepas, Yifan Ma, Hailong Chen

引用次数: 0

Sustainable Molecular Passivation via Heat-Induced Disaggregation and Redox Reactions for Inverted Perovskite Solar Cells 通过热诱导的解离和氧化还原反应实现可持续的分子钝化，用于反相包晶石太阳能电池

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-10-21 DOI: 10.1021/acsenergylett.4c02220

Ziyi Li, Anxin Sun, Congcong Tian, Rongshan Zhuang, Yiting Zheng, Xiling Wu, Beilin Ouyang, Jiajun Du, Jingyu Cai, Jinling Chen, Teng Xue, Ran Li, Tiantian Cen, Yuyang Zhao, Kaibo Zhao, Qianwen Chen, Chun-Chao Chen

{"title":"Sustainable Molecular Passivation via Heat-Induced Disaggregation and Redox Reactions for Inverted Perovskite Solar Cells","authors":"Ziyi Li, Anxin Sun, Congcong Tian, Rongshan Zhuang, Yiting Zheng, Xiling Wu, Beilin Ouyang, Jiajun Du, Jingyu Cai, Jinling Chen, Teng Xue, Ran Li, Tiantian Cen, Yuyang Zhao, Kaibo Zhao, Qianwen Chen, Chun-Chao Chen","doi":"10.1021/acsenergylett.4c02220","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02220","url":null,"abstract":"Molecular materials with high structure-design freedom are used as new interface passivators to reduce nonradiative recombination in inverted perovskite solar cells (PSCs). However, most molecular modifiers are unable to achieve a long-term passivation effect due to self-aggregation. Here, the molecular modifier 1-methyl-2-thiomethyl-1H-imidazole-5-carboxylate (SMC) with ester and thiol groups is carefully developed. The ester groups weaken self-aggregation triggered by intermolecular hydrogen bonds, making such aggregations easier to disassemble during heating to form a net-like insulating layer with random openings, which dramatically increase charge transport. More importantly, the electron transfer between thiol and disulfide can accelerate the elimination of Pb0 and I2 by redox reactions to prevent phase separation. Ultimately, the optimized inverted PSCs with bandgaps of 1.68 and 1.55 eV showed surprising fill factors of 84.83% and 86.18%, resulting in champion efficiencies of 23.45% (certified 22.98%, which is the highest to date for wide-bandgap) and 25.71% (certified 25.28%), respectively. Remarkably, both unencapsulated devices maintained over 94% of their initial efficiency under maximum power point tracking for 600 h (50 °C) and 1000 h (65 °C), respectively, confirming impressive long-term operational stability.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452319","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}

引用次数: 0

A Safe Electrolyte Enriched with Flame-Retardant Solvents for High-Voltage LiCoO2||Graphite Pouch Cells 用于高压钴酸锂电池的富含阻燃溶剂的安全电解液||石墨袋电池

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-10-18 DOI: 10.1021/acsenergylett.4c02466

Chao Yang, Xing Zhou, Ruitao Sun, Wenxi Hu, Meilong Wang, Xiaoli Dong, Nan Piao, Jin Han, Wen Chen, Ya You

{"title":"A Safe Electrolyte Enriched with Flame-Retardant Solvents for High-Voltage LiCoO2||Graphite Pouch Cells","authors":"Chao Yang, Xing Zhou, Ruitao Sun, Wenxi Hu, Meilong Wang, Xiaoli Dong, Nan Piao, Jin Han, Wen Chen, Ya You","doi":"10.1021/acsenergylett.4c02466","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02466","url":null,"abstract":"Employing a flame-retardant solvent (FRS) in the electrolyte has shown great potential for improving the safety of lithium-ion batteries (LIBs). Nevertheless, their poor compatibility with salts and commonly used solvents leads to the formation of a heterogeneous system, which drastically limits their concentration in the electrolyte and consequently deteriorates the safety performance. In this work, we employ a bridging solvent diethyl carbonate to raise the solubility of a highly effective FRS, ethoxy pentafluorocyclotriphosphonitrile (PFPN), to a concentration as high as 75 vol % in the electrolyte. The target electrolyte forms a stable N/P-rich cathode–electrolyte interface to protect the electrode from oxygen evolution and transition-metal ion dissolution, thereby enabling the LiCoO2 cathode to preserve 72% capacity retention over 500 cycles at 4.62 V. Moreover, this electrolyte can effectively delay occurrence time and improve the critical temperature of thermal runaway of 1 Ah LiCoO2||graphite pouch cells. Our work proposes a new direction for nonflammable electrolytes toward safe and high-energy LIBs.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142448897","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}

引用次数: 0

Harnessing Vibrationally Assisted Delayed Fluorescence for Enhanced Energy Transfer in Mn-Doped CsPbBr3 Nanocrystals 利用振荡辅助延迟荧光增强掺锰 CsPbBr3 纳米晶体中的能量传递

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-10-18 DOI: 10.1021/acsenergylett.4c02592

Subham Das, Sudipa Aich, Aswathy M, Ranjani Viswanatha

引用次数: 0

Nonflammable Sulfone-Based Electrolytes with Mechanically and Thermally Stable Interfaces Enabling LiNi0.5Mn1.5O4 to Operate at High Temperature 具有机械和热稳定性界面的不易燃砜基电解质使 LiNi0.5Mn1.5O4 可在高温下工作

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-10-17 DOI: 10.1021/acsenergylett.4c02458

Tian-Ling Chen, Mengting Liu, Xin-Yu Fan, Yi-Hu Feng, Qiang Liu, Xue-Ru Liu, Hanshen Xin, Peng-Fei Wang

{"title":"Nonflammable Sulfone-Based Electrolytes with Mechanically and Thermally Stable Interfaces Enabling LiNi0.5Mn1.5O4 to Operate at High Temperature","authors":"Tian-Ling Chen, Mengting Liu, Xin-Yu Fan, Yi-Hu Feng, Qiang Liu, Xue-Ru Liu, Hanshen Xin, Peng-Fei Wang","doi":"10.1021/acsenergylett.4c02458","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02458","url":null,"abstract":"The development of high-energy 5 V-class LiNi0.5Mn1.5O4 batteries is severely limited by the instability of the cathode electrolyte interphase (CEI) at high temperature. Herein, we propose a nonflammable sulfone (SL)-based fluorinated hybrid electrolyte to form stable, uniform, and thin CEI layers, enabling Li||LiNi0.5Mn1.5O4 batteries to achieve elevated electrochemical performance at 60 °C. The formed highly stable inorganic-dominated CEI, comprising LixSOy, LixBOy, and LiF inorganic compositions, exhibits good thermal stability and mechanical strength. Moreover, the robust CEI layer effectively shields the LNMO particles from undesirable side-reactions and stabilizes the interface within the LiNi0.5Mn1.5O4 cathode during high-temperature cycling. In contrast to the conventional electrolyte, the Li||LiNi0.5Mn1.5O4 battery employing a nonflammable SL-based electrolyte exhibits a stable capacity retention of 88.5% after 100 cycles at 60 °C free from the risk of thermal runaway. This study reveals valuable insights into advanced electrolyte technology, paving the way for safer applications of Co-free high-energy batteries in the future.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142448171","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}

引用次数: 0

Controlling Intermediate Phase Formation to Enhance Photovoltaic Performance of Inverted FA-Based Perovskite Solar Cells 控制中间相的形成以提高反相 FA 型过氧化物太阳能电池的光伏性能

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-10-17 DOI: 10.1021/acsenergylett.4c02580

Chaohui Li, Hyoungwon Park, Shudi Qiu, Fabian Streller, Kaicheng Zhang, Zijian Peng, Jiwon Byun, Jingjing Tian, Santanu Maiti, Zhiqiang Xie, Lirong Dong, Chao Liu, Vincent M. Le Corre, Ying Shang, Jianchang Wu, Jiyun Zhang, Mingjie Feng, Andreas Späth, Karen Forberich, Andres Osvet, Thomas Heumueller, Silke H. Christiansen, Marcus Halik, Rainer H. Fink, Tobias Unruh, Ning Li, Larry Lüer, Christoph J. Brabec

{"title":"Controlling Intermediate Phase Formation to Enhance Photovoltaic Performance of Inverted FA-Based Perovskite Solar Cells","authors":"Chaohui Li, Hyoungwon Park, Shudi Qiu, Fabian Streller, Kaicheng Zhang, Zijian Peng, Jiwon Byun, Jingjing Tian, Santanu Maiti, Zhiqiang Xie, Lirong Dong, Chao Liu, Vincent M. Le Corre, Ying Shang, Jianchang Wu, Jiyun Zhang, Mingjie Feng, Andreas Späth, Karen Forberich, Andres Osvet, Thomas Heumueller, Silke H. Christiansen, Marcus Halik, Rainer H. Fink, Tobias Unruh, Ning Li, Larry Lüer, Christoph J. Brabec","doi":"10.1021/acsenergylett.4c02580","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02580","url":null,"abstract":"Formamidinium (FA)-based perovskites exhibit significant potential for highly efficient photovoltaics due to their promising optoelectronic properties and optimal bandgap. However, the undesired inactive phase arises from multiple crystal nucleation pathways formed by various intermediate phases during the film formation process, persistently accompanying it. FA-based perovskites frequently struggle to form uniform, highly crystalline films. This challenge complicates the development of reliable and highly reproducible crystallization processes for perovskites and the establishment of guidelines for controlling the α-phase formation. In this work, we investigate the role of poly(acrylonitril-co-methyl acrylate) (PAM) to simultaneously control nucleation and subsequent α-phase crystallization. This successfully demonstrates the regulation of oriented crystal growth through the creation of a PAM-PbI2 intermediate. Ultimately, PAM-modified p–i–n architecture devices obtain a promising power conversion efficiency (PCE) of 25.30%, with VOC (1.211 V), achieving 95% of the detailed balance limit. Additionally, PAM-modified devices maintain ≥90% of the initial efficiency for 1000 h under 1 sun and 65 °C operation.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444159","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}

引用次数: 0

Identifying the Critical Oxygenated Functional Groups on Graphene Oxide for Efficient Water Dissociation in Bipolar Membranes 识别氧化石墨烯上的关键氧官能团，实现双极膜中的高效水解离

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-10-17 DOI: 10.1021/acsenergylett.4c02677

Fanxu Meng, Jiangzhou Qin, Qinghao Wu, Huiwang Dai, Pan Zhu, Tian Tang, Lixia Zhang, Zishuai Bill Zhang, Kuichang Zuo

引用次数: 0

Surface Defect Recovery in Perovskite Nanocrystals with Excess Halide for Core–Shell Structure 具有过量卤化物的核壳结构过氧化物纳米晶体的表面缺陷恢复

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-10-16 DOI: 10.1021/acsenergylett.4c01870

Dong Hyeon Lee, Woo Hyeon Jeong, Seokhyun Choung, Ji Won Jang, Gyudong Lee, Hochan Song, Sanghun Han, Gyeong Eun Seok, Jihoon Kim, Myeonggeun Han, Jeong Woo Han, Hyosung Choi, Jongmin Choi, Bo Ram Lee, Yong-Young Noh

引用次数: 0

Research Trends and Future Perspectives on Zn-Ion Batteries Using Ga-Based Liquid Metal Coatings on Zn Anodes 在锌阳极上使用镓基液态金属涂层的锌离子电池的研究趋势和未来展望

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-10-16 DOI: 10.1021/acsenergylett.4c02191

Seungwoo Hong, Zungsun Choi, Byungil Hwang, Aleksandar Matic

引用次数: 0

Solvation Sheath Reorganization by Alkyl Chain Tuning Promises Lean-Electrolyte Li–S Batteries 通过烷基链调谐实现溶解鞘重组，有望开发瘦电解质锂离子电池

IF 22 1区材料科学

ACS Energy Letters Pub Date : 2024-10-15 DOI: 10.1021/acsenergylett.4c02049

Zixiong Shi, Simil Thomas, Dong Guo, Zhengnan Tian, Zhiming Zhao, Yizhou Wang, Abdul-Hamid Emwas, Nimer Wehbe, Georgian Melinte, Osman M. Bakr, Omar F. Mohammed, Husam N. Alshareef

{"title":"Solvation Sheath Reorganization by Alkyl Chain Tuning Promises Lean-Electrolyte Li–S Batteries","authors":"Zixiong Shi, Simil Thomas, Dong Guo, Zhengnan Tian, Zhiming Zhao, Yizhou Wang, Abdul-Hamid Emwas, Nimer Wehbe, Georgian Melinte, Osman M. Bakr, Omar F. Mohammed, Husam N. Alshareef","doi":"10.1021/acsenergylett.4c02049","DOIUrl":"https://doi.org/10.1021/acsenergylett.4c02049","url":null,"abstract":"Sparsely solvating electrolyte (SSE), which can achieve a quasi-solid-phase sulfur reaction path, stands out as a promising strategy to alleviate the dependence on electrolyte usage and construct lean-electrolyte lithium–sulfur (Li–S) batteries. Nonetheless, its formation relies upon a high dosage of salt and diluent, thereby leading to increased electrolyte cost. To this end, we herein customize a localized SSE (LSSE) featuring a low ratio of salt-to-solvent and diluent-to-solvent through alkyl chain tuning. A multimodal 2D nuclear magnetic resonance technique is developed to unveil the Li-ion solvation sheath reorganization, which is crucial for studying the coordination and dynamics in liquid electrolytes. LSSE affords an anion-derived solid electrolyte interface and effective restriction of the shuttling effect; hence, our Li–S batteries can sustain a steady operation under 4 μL mgS–1 and 3 mg cm–2. Our work opens a new avenue for advancing SSE design in the pursuit of pragmatic lean-electrolyte Li–S batteries.","PeriodicalId":16,"journal":{"name":"ACS Energy Letters ","volume":null,"pages":null},"PeriodicalIF":22.0,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142436367","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}

引用次数: 0