Batteries & Supercaps最新文献_第8页

Statistical Analysis of Solid Electrolyte Interface Formation: Correlation of Gas Composition, Electrochemical Data and Performance 固体电解质界面形成的统计分析：气体成分、电化学数据和性能的相关性

IF 5.7 4区材料科学

Batteries & Supercaps Pub Date : 2024-07-26 DOI: 10.1002/batt.202400291

Sebastian Klick, Karl Martin Graff, Gereon Stahl, Egbert Figgemeier, Dirk Uwe Sauer

引用次数: 0

On the Selection of the Current Collector for Water Processed Activated Carbon Electrodes for their Application in Electrochemical Capacitors 关于水处理活性炭电极在电化学电容器中应用的集流体的选择

IF 5.7 4区材料科学

Batteries & Supercaps Pub Date : 2024-07-26 DOI: 10.1002/batt.202400405

Maria Arnaiz, Paulo Luis, Silvia Martin-Fuentes, Jon Ajuria

{"title":"On the Selection of the Current Collector for Water Processed Activated Carbon Electrodes for their Application in Electrochemical Capacitors","authors":"Maria Arnaiz, Paulo Luis, Silvia Martin-Fuentes, Jon Ajuria","doi":"10.1002/batt.202400405","DOIUrl":"https://doi.org/10.1002/batt.202400405","url":null,"abstract":"Electrode manufacturing for electrochemical energy storage technologies often relies on hazardous fluorine‐containing compounds and toxic organic solvents. To align with sustainability goals and reduce costs, there is a pressing need for water‐processable alternatives. These alternatives can halve electrode processing costs and ease regulatory burdens. While progress has been made with water‐processed graphite electrodes using eco‐friendly binders, challenges persist for high‐mass loading activated carbon (AC) electrodes. This study investigates the impact of modified aluminium current collectors on water‐processed AC electrodes, focusing on compatibility, processability, and electrochemical performance. Various aluminium foils, including etched and carbon‐coated types, were evaluated. The results show that modifications at the interface significantly improve the wetting properties and mechanical stability. Electrochemical tests revealed that carbon‐coated aluminium provided the lowest internal resistance and highest rate capability due to intimate contact between the electrode components. In contrast, etched aluminium foil exhibited higher contact resistance and poorer performance. Ageing studies demonstrated that carbon‐coated foils maintained better electrochemical performance over time, as the carbon layer reduced degradation reactions and contact resistance. These findings suggest that uniformly carbon‐coated aluminium current collectors are the optimal choice for high‐power electrochemical capacitors, balancing performance, sustainability, and cost‐efficiency.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"83 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141782844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effect of Synthesis Conditions on the Composition, Local Structure and Electrochemical Behavior of (Cr,Fe,Mn,Co,Ni)3O4 Anode Material 合成条件对（Cr,Fe,Mn,Co,Ni）3O4 阳极材料的成分、局部结构和电化学行为的影响

IF 5.7 4区材料科学

Batteries & Supercaps Pub Date : 2024-07-25 DOI: 10.1002/batt.202400350

Nina Kosova, Kseniya V. Mishchenko, Pavel Yu. Tyapkin, Arseny B. Slobodyuk, Maria A. Kirsanova

{"title":"Effect of Synthesis Conditions on the Composition, Local Structure and Electrochemical Behavior of (Cr,Fe,Mn,Co,Ni)3O4 Anode Material","authors":"Nina Kosova, Kseniya V. Mishchenko, Pavel Yu. Tyapkin, Arseny B. Slobodyuk, Maria A. Kirsanova","doi":"10.1002/batt.202400350","DOIUrl":"https://doi.org/10.1002/batt.202400350","url":null,"abstract":"Disordered high entropy spinels (HES) (Cr,Fe,Mn,Co,Ni)3O4 were obtained by solid‐state synthesis and co‐precipitation using various powder precursors. They were characterized by a complex of physico‐chemical methods and investigated as anode materials for lithium‐ion batteries (LIBs). According to XRD and TEM data, the materials are single‐phase. The structural characterization of the samples obtained at 773, 973, and 1273 K was determined using Raman and Mössbauer spectroscopy, and magnetic measurements. The degree of spinel inversion and lattice distortion (microstrains) decrease with increasing synthesis temperature, while the crystallite size increases. The insufficient nickel content in the samples ensures a more uniform distribution of iron cations in both sublattices, which leads to an increase in the lattice parameters and has a positive effect on the de‐/lithiation. Repeated ball‐milling of HES material, prepared by co‐precipitation, increases its specific capacity from 284 mAh·g‐1 to 492 mAh·g‐1 at a current density of 100 mA·g‐1 after 25 cycles. Besides, the smaller crystallite size reduces the volume changes in the materials during de‐/lithiation.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"6 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141782845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Electrospun Quasi-Composite Polymer Electrolyte with Hydoxyl-Anchored Aluminosilicate Zeolitic Network for Dendrite Free Lithium Metal Batteries 电纺丝准复合聚合物电解质与水氧锚定铝硅酸盐沸石网络用于无枝晶型锂电池

IF 5.1 4区材料科学

Batteries & Supercaps Pub Date : 2024-07-24 DOI: 10.1002/batt.202400299

Jenny Johnson, Sajan Raj Sasirajan Littleflower, Kumaran Vediappan, Helen Annal Therese

{"title":"Electrospun Quasi-Composite Polymer Electrolyte with Hydoxyl-Anchored Aluminosilicate Zeolitic Network for Dendrite Free Lithium Metal Batteries","authors":"Jenny Johnson, Sajan Raj Sasirajan Littleflower, Kumaran Vediappan, Helen Annal Therese","doi":"10.1002/batt.202400299","DOIUrl":"10.1002/batt.202400299","url":null,"abstract":"All-solid-state lithium metal batteries have reshaped emerging safe battery technologies. However, their low metal ion transport and unstable electrode electrolyte interface make their mass production a huge question. To bridge the emerging solid state and traditional liquid electrolytes, we focus on Quasi-Composite Polymer electrolytes (QCPE). Herein, we develop QCPE with active 3D alumino-silicate zeolitic ion conduction pathways embedded in a polymer matrix using two techniques- solution casting and electrospinning. Electrospun QCPE outperforms Solution cast QCPE by achieving high amorphous behavior. Prompt elimination of solvent during electrospinning decreases bulk resistance and increases its ionic conductivity. The Zeolitic pathway anchored by hydroxyl groups of PVA polymer acts as a highway for Li+ ions. It exhibits highly stable platting stripping vs Li+/Li for 450 hours with low overpotential, confirming the interfacial compatibility and dendrite-free cycling at lithium metal anode. Controlled lithium-ion nucleation regulated by evenly distributed zeolitic pathway is an interesting front of this work. To test QCPE's performance in Lithium metal battery (LMB), the electrospun QCPE is used to fabricate LMB with LiFePO4 cathode. This battery system delivered a high capacity of 155 mAh g−1 at 0.1 C. In addition to the high performance, electrospun QCPE production is scalable at an industrial scale.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"7 11","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141782846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Prussian Blue Analogues Derived Bimetallic CoNi@NC as Efficient Oxygen Reduction Reaction Catalyst for Mg‐Air Batteries 普鲁士蓝类似物衍生双金属 CoNi@NC 作为镁-空气电池的高效氧气还原反应催化剂

IF 5.7 4区材料科学

Batteries & Supercaps Pub Date : 2024-07-23 DOI: 10.1002/batt.202400418

Xiaoyang Dong, Jinxing Wang, Junqian Ling, Ying Zhang, Junyao Xu, Wen Zeng, Guangsheng Huang, Jingfeng Wang, Fusheng Pan

{"title":"Prussian Blue Analogues Derived Bimetallic CoNi@NC as Efficient Oxygen Reduction Reaction Catalyst for Mg‐Air Batteries","authors":"Xiaoyang Dong, Jinxing Wang, Junqian Ling, Ying Zhang, Junyao Xu, Wen Zeng, Guangsheng Huang, Jingfeng Wang, Fusheng Pan","doi":"10.1002/batt.202400418","DOIUrl":"https://doi.org/10.1002/batt.202400418","url":null,"abstract":"The magnesium‐air (Mg‐air) batteries are regarded as a highly promising system for electrochemical energy conversion and storage, owing to exceptional energy density, notable safety and eco‐friendliness. The development of high‐performance and durable non‐noble metal catalysts for the cathodic oxygen reduction reaction (ORR) is crucial for advancing the practical use of Mg‐air batteries. The synergistic interaction between different metals in bimetallic catalysts is an effective strategy for enhancing the activity and stability of the catalysts. Herein, various prussian blue analogues (PBA) were selected as precursors to synthesis the bimetallic CoNi@NC, monometallic Co@NC and Ni@NC catalysts due to tunable chemical compositions. Compared with Co@NC and Ni@NC, the bimetallic CoNi@NC pyrolyzed at 600°C (CoNi@NC‐600) exhibits outstanding ORR performances and stability in alkaline (0.1 M KOH) and neutral (3.5 wt% NaCl) electrolytes. Following 5000 CV cycles, the half‐wave potentials for CoNi@NC‐600 show only minor negative shifts of 8 and 7 mV, respectively. Meanwhile, the CoNi@NC‐600 possesses the similar ORR reaction mechanism and activity with Pt/C. The primary Mg‐air battery assembled with CoNi@NC‐600 displays better discharge performances than that of Co@NC and Ni@NC. This study lays the foundation for future investigations into the advancement of non‐precious bimetallic catalysts for ORR in Mg‐air batteries.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"32 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141782847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

All colloidal supercapattery: colloid@carbon cloth electrodes meet "water‐in‐salt" electrolyte 全胶体超级电池：胶体@碳布电极与 "盐包水 "电解质的结合

IF 5.7 4区材料科学

Batteries & Supercaps Pub Date : 2024-07-23 DOI: 10.1002/batt.202400380

Xiangfei Sun, Kunfeng Chen, Dongfeng Xue

{"title":"All colloidal supercapattery: colloid@carbon cloth electrodes meet \"water‐in‐salt\" electrolyte","authors":"Xiangfei Sun, Kunfeng Chen, Dongfeng Xue","doi":"10.1002/batt.202400380","DOIUrl":"https://doi.org/10.1002/batt.202400380","url":null,"abstract":"The pursuit of excellent electrochemical performance, nonflammability and environmental friendliness of aqueous batteries and supercapacitors has driven efforts to find high‐energy yet reliable electrode materials and electrolyte solutions. Here, all colloidal supercapattery are developed using high‐concentration \"water‐in‐salt\" electrolytes (LiTFSI‐KOH) and pseudocapacitive colloid@carbon cloth as both positive and negative electrodes, which showed merits of batteries and supercapacitors. Ni/Co‐colloid @carbon cloth positive and Fe‐colloid @carbon cloth negative electrodes can be synthesized by in situ electrochemical reaction. The maximum operating voltage of an aqueous colloidal supercapattery is 1.8 V, and the energy density can reach 73.98 Wh kg−1 at a power density of 1799.5 W kg‐1. The specific capacitance of the aqueous colloidal supercapattery still maintains 74.3% of the initial after 2000 cycles of charge/discharge measurement. The combination of quasi ion colloidal materials and \"water‐in‐salt\" electrolyte pave a profound way to achieve high energy and power ability simultaneously at the supercapattery device.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"41 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141782849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Ethanediamine Intercalation Induced Hydrogen Bond Network in Vanadium Oxide for Ultralong‐Life Aqueous Ammonium Ion Batteries 乙二胺互嵌诱导氧化钒中的氢键网络，用于超长寿命铵离子水电池

IF 5.7 4区材料科学

Batteries & Supercaps Pub Date : 2024-07-22 DOI: 10.1002/batt.202400426

Tzu-Hao Lu, Qiyu Liu, Jinjun He, Hao Liu, Yanxia Yu, Yi Wang, Xihong Lu

{"title":"Ethanediamine Intercalation Induced Hydrogen Bond Network in Vanadium Oxide for Ultralong‐Life Aqueous Ammonium Ion Batteries","authors":"Tzu-Hao Lu, Qiyu Liu, Jinjun He, Hao Liu, Yanxia Yu, Yi Wang, Xihong Lu","doi":"10.1002/batt.202400426","DOIUrl":"https://doi.org/10.1002/batt.202400426","url":null,"abstract":"Aqueous ammonium‐ion batteries (AAIBs) have received tremendous attention as a potential energy technology, but their development is severely challenged by the fact that the as‐reported electrode materials are usually unable to meet the requirements of high capacity and high stability simultaneously. Herein, an organic‐inorganic hybrid material of ethanediamine (EDA) intercalated vanadium oxide (VO‐EDA) is synthesized as a high‐performance anode material for AAIBs. The intercalated EDA molecules not only act as an electron donor to bind with NH4+, but also form hydrogen bonding network structures with vanadium oxides to facilitate charge/ion transfer. As a result, this hybrid material provides a high specific capacity of 104.4 mAh g−1 at 0.5 A g−1 and good cycling stability after 5000 cycles 10 A g−1 with a coulombic efficiency of ~100%. Moreover, the ammonium‐ion full cell based on VO‐EDA anode and NiHCF cathode achieves a specific capacity of 55 mAh g−1 at 0.1 A g−1 and impressive cycling stability with 88.6% capacity retention after 10000 cycles at 5 A g−1.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"42 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141782854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Motional Resistance as Highly Selective Descriptor to Probe Dynamic Formation of Surface Films on Zinc Anode 作为高选择性描述符探测锌阳极表面膜的动态形成

IF 5.7 4区材料科学

Batteries & Supercaps Pub Date : 2024-07-18 DOI: 10.1002/batt.202400338

Sangram Keshari Mohanty, Yeongin Ok, Eun Su Kim, Yuwon Park, Ji Heon Ryu, Junyoung Mun, Jeonghyeon Lee, Kyu Hyun, Madhusudana Koratikere Srinivasa, Hyein Jeong, Sri Charan Reddy, Hyun Deog Yoo

{"title":"Motional Resistance as Highly Selective Descriptor to Probe Dynamic Formation of Surface Films on Zinc Anode","authors":"Sangram Keshari Mohanty, Yeongin Ok, Eun Su Kim, Yuwon Park, Ji Heon Ryu, Junyoung Mun, Jeonghyeon Lee, Kyu Hyun, Madhusudana Koratikere Srinivasa, Hyein Jeong, Sri Charan Reddy, Hyun Deog Yoo","doi":"10.1002/batt.202400338","DOIUrl":"https://doi.org/10.1002/batt.202400338","url":null,"abstract":"Zinc anodes are expected as a promising alternative to lithium‐based anodes in energy storage systems due to their low cost, high theoretical capacity, and environmental friendliness. However, the development of efficient and stable zinc anode requires a fundamental understanding of the interfacial processes occurring during zinc deposition and dissolution cycling. In this study, we employed electrochemical quartz crystal microbalance (EQCM) analysis to investigate the potential‐dependent formation and decomposition of surface films on zinc metal anodes in sulfate‐based aqueous electrolytes. Changes in frequency and motional resistance served as complementary descriptors, with motional resistance being a highly selective indicator for probing dynamic surface film formation driven by side reactions at the zinc anode. While the frequency change provided the overall changes in the mass of both zinc metal and surface films, changes in the motional resistance selectively reflected the amount and nature of the visco‐elastic interface that comprise the surface films. The two descriptors provide quantitative and complementary means to discover the complex interfacial processes such as the formation of surface visco‐elastic films, guiding to the development of more stable and efficient zinc‐based electrochemical systems.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"84 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141741391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

From Powder to Pouch Cell: Setting up a Sodium-Ion Battery Reference System Based on Na3V2(PO4)3/C and Hard Carbon 从粉末到袋装电池：建立基于 Na3V2(PO4)3/C 和硬碳的钠离子电池参考系统

IF 5.7 4区材料科学

Batteries & Supercaps Pub Date : 2024-07-17 DOI: 10.1002/batt.202400406

Pirmin Stüble, Cedric Müller, Nicole Bohn, Marcus Müller, Andreas Hofmann, Tolga Akçay, Julian Klemens, Arnd Koeppe, Satish Kolli, Deepalaxmi Rajagopal, Holger Geßwein, Wilhelm Schabel, Philip Scharfer, Michael Selzer, Joachim R. Binder, Anna Smith

{"title":"From Powder to Pouch Cell: Setting up a Sodium-Ion Battery Reference System Based on Na3V2(PO4)3/C and Hard Carbon","authors":"Pirmin Stüble, Cedric Müller, Nicole Bohn, Marcus Müller, Andreas Hofmann, Tolga Akçay, Julian Klemens, Arnd Koeppe, Satish Kolli, Deepalaxmi Rajagopal, Holger Geßwein, Wilhelm Schabel, Philip Scharfer, Michael Selzer, Joachim R. Binder, Anna Smith","doi":"10.1002/batt.202400406","DOIUrl":"https://doi.org/10.1002/batt.202400406","url":null,"abstract":"At the research level, novel active materials for batteries are synthesised on a small scale, fabricated into electrodes and electrochemically characterised using each group’s established process due to the lack of standards. Recently, eminent researchers have criticised the implementation of e.g. low active material contents/electrode loadings, the use of research-type battery cell constructions, or the lack of statistically relevant data, resulting in overstated data and thus giving misleading predictions of the key performance indicators of new battery technologies. Here, we report on the establishment of a reference system for the development of sodium-ion batteries. Electrodes are fabricated under relevant conditions using 9.5 mg/cm² self-synthesised Na3V2(PO4)3/C cathode active material and 3.6 mg/cm² commercially available hard carbon anode active material. It is found that different types of battery cells are more or less suitable for half- and/ or full-cell testing, resulting in ir/reproducible or underestimated active material capacities. Furthermore, the influence of electrode overhang, which is relevant for upscaling, is evaluated. The demonstrator cell (TRL 4-5) has been further characterised providing measured data on the power/energy density and thermal behaviour during rate testing up to 15 C and projections are made for its practical limits.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"21 1","pages":""},"PeriodicalIF":5.7,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Hofmeister Effect Mediated Conductivity of Hydrogel Electrolytes for High Performance Supercapacitor 用于高性能超级电容器的水凝胶电解质的霍夫迈斯特效应介导电导率

IF 5.1 4区材料科学

Batteries & Supercaps Pub Date : 2024-07-17 DOI: 10.1002/batt.202400245

Bingxi Lv, Qingqing Guo, Xingxiang Ji, Ligang Gai, Libin Liu

{"title":"Hofmeister Effect Mediated Conductivity of Hydrogel Electrolytes for High Performance Supercapacitor","authors":"Bingxi Lv, Qingqing Guo, Xingxiang Ji, Ligang Gai, Libin Liu","doi":"10.1002/batt.202400245","DOIUrl":"10.1002/batt.202400245","url":null,"abstract":"Regulating the performance of hydrogel electrolytes by Hofmeister effect has attracted great interest. However, the Hofmeister effects of cations on the conductivity of hydrogel electrolytes are rarely reported. Here, hydrogel electrolytes (polySA) have been fabricated by random copolymerization of zwitterionic monomers in the presence of NH4Cl, NaCl and LiCl. The weak interaction between NH4+ with water and molecular chains makes polySA-NH4+ electrolyte have high conductivity at room temperatures, whereas the strong interaction between Li+ with water and molecular chains makes polySA-Li+ electrolyte possess good anti-freezing properties and high mechanical strength. The polySA-Li+ hydrogel electrolyte can have a conductivity of 9.63 mS cm−1 at −35 °C. Supercapacitors assembled with polySA-Li+ offers high specific capacitance of 52.25 F g−1 at 25 °C and 47.75 F g−1 at −35 °C. The capacitance retention is 94.64 % after 10 days at −35 °C. Our work shows that different properties of hydrogel electrolytes can be achieved by regulating Hofmeister effect, which provides a new way to prepare high-performance energy storage materials.","PeriodicalId":132,"journal":{"name":"Batteries & Supercaps","volume":"7 11","pages":""},"PeriodicalIF":5.1,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141741276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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