Liang-Yu Li, Su Yan, Ying-Jia Huang, Fang-Fang Zhong, Jin-Chao Cao, Mei Ding, Chuan-Kun Jia
{"title":"涂有 WS2 的碳毡电极实现了高性能多硫化物/铁氰化物液流电池","authors":"Liang-Yu Li, Su Yan, Ying-Jia Huang, Fang-Fang Zhong, Jin-Chao Cao, Mei Ding, Chuan-Kun Jia","doi":"10.1007/s12598-024-02773-y","DOIUrl":null,"url":null,"abstract":"<div><p>Polysulfide/ferricyanide flow batteries (S/Fe RFBs), with the advantages of abundant earth reservation, low cost, high safety, and environmental friendliness, have attracted significant interest and demonstrated noteworthy potential for practical applications. However, the battery performance, including the energy efficiency (EE), voltage efficiency (VE), and power density of the S/Fe RFBs, remains low owing to the slow redox kinetics of polysulfide ions. To address these concerns, WS<sub>2</sub> was selected as the booster and deposited on a commercial carbon felt electrode (WS<sub>2</sub>–CF) to stimulate the redox reactions of polysulfide ions. With better hydrophilicity and smaller charge-transfer resistance, WS<sub>2</sub>–CF exhibits enhanced electrochemical activity toward polysulfide redox reactions. Consequently, the battery performance of S/Fe RFB with WS<sub>2</sub>–CF as the anode has been improved, with EE of 84%, VE of 84%, and a peak power density of 175.7 mW·cm<sup>−2</sup>, which are all higher than the cell only with the bare carbon felt (CF) as electrodes (76%, 77%, and 155.8 mW·cm<sup>−2</sup>, respectively). Furthermore, the cycling life of the S/Fe RFB with WS<sub>2</sub>–CF has been prolonged to 2200 cycles with a capacity retention of 96% at 40 mA·cm<sup>−2</sup> because of the good stability of WS<sub>2</sub>–CF as the anode. Contrarily, under the same conditions, the S/Fe RFB without WS<sub>2</sub>–CF terminated after 1500 cycles with a fast capacity decay. The successful utilization of WS<sub>2</sub> as a booster on an electrode provides an efficient strategy for obtaining advanced S/Fe RFBs for practical applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":749,"journal":{"name":"Rare Metals","volume":null,"pages":null},"PeriodicalIF":9.6000,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Carbon felt electrode coated with WS2 enables a high-performance polysulfide/ferricyanide flow battery\",\"authors\":\"Liang-Yu Li, Su Yan, Ying-Jia Huang, Fang-Fang Zhong, Jin-Chao Cao, Mei Ding, Chuan-Kun Jia\",\"doi\":\"10.1007/s12598-024-02773-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Polysulfide/ferricyanide flow batteries (S/Fe RFBs), with the advantages of abundant earth reservation, low cost, high safety, and environmental friendliness, have attracted significant interest and demonstrated noteworthy potential for practical applications. However, the battery performance, including the energy efficiency (EE), voltage efficiency (VE), and power density of the S/Fe RFBs, remains low owing to the slow redox kinetics of polysulfide ions. To address these concerns, WS<sub>2</sub> was selected as the booster and deposited on a commercial carbon felt electrode (WS<sub>2</sub>–CF) to stimulate the redox reactions of polysulfide ions. With better hydrophilicity and smaller charge-transfer resistance, WS<sub>2</sub>–CF exhibits enhanced electrochemical activity toward polysulfide redox reactions. Consequently, the battery performance of S/Fe RFB with WS<sub>2</sub>–CF as the anode has been improved, with EE of 84%, VE of 84%, and a peak power density of 175.7 mW·cm<sup>−2</sup>, which are all higher than the cell only with the bare carbon felt (CF) as electrodes (76%, 77%, and 155.8 mW·cm<sup>−2</sup>, respectively). Furthermore, the cycling life of the S/Fe RFB with WS<sub>2</sub>–CF has been prolonged to 2200 cycles with a capacity retention of 96% at 40 mA·cm<sup>−2</sup> because of the good stability of WS<sub>2</sub>–CF as the anode. Contrarily, under the same conditions, the S/Fe RFB without WS<sub>2</sub>–CF terminated after 1500 cycles with a fast capacity decay. The successful utilization of WS<sub>2</sub> as a booster on an electrode provides an efficient strategy for obtaining advanced S/Fe RFBs for practical applications.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":749,\"journal\":{\"name\":\"Rare Metals\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":9.6000,\"publicationDate\":\"2024-06-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Rare Metals\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12598-024-02773-y\",\"RegionNum\":1,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Rare Metals","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12598-024-02773-y","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Carbon felt electrode coated with WS2 enables a high-performance polysulfide/ferricyanide flow battery
Polysulfide/ferricyanide flow batteries (S/Fe RFBs), with the advantages of abundant earth reservation, low cost, high safety, and environmental friendliness, have attracted significant interest and demonstrated noteworthy potential for practical applications. However, the battery performance, including the energy efficiency (EE), voltage efficiency (VE), and power density of the S/Fe RFBs, remains low owing to the slow redox kinetics of polysulfide ions. To address these concerns, WS2 was selected as the booster and deposited on a commercial carbon felt electrode (WS2–CF) to stimulate the redox reactions of polysulfide ions. With better hydrophilicity and smaller charge-transfer resistance, WS2–CF exhibits enhanced electrochemical activity toward polysulfide redox reactions. Consequently, the battery performance of S/Fe RFB with WS2–CF as the anode has been improved, with EE of 84%, VE of 84%, and a peak power density of 175.7 mW·cm−2, which are all higher than the cell only with the bare carbon felt (CF) as electrodes (76%, 77%, and 155.8 mW·cm−2, respectively). Furthermore, the cycling life of the S/Fe RFB with WS2–CF has been prolonged to 2200 cycles with a capacity retention of 96% at 40 mA·cm−2 because of the good stability of WS2–CF as the anode. Contrarily, under the same conditions, the S/Fe RFB without WS2–CF terminated after 1500 cycles with a fast capacity decay. The successful utilization of WS2 as a booster on an electrode provides an efficient strategy for obtaining advanced S/Fe RFBs for practical applications.
期刊介绍:
Rare Metals is a monthly peer-reviewed journal published by the Nonferrous Metals Society of China. It serves as a platform for engineers and scientists to communicate and disseminate original research articles in the field of rare metals. The journal focuses on a wide range of topics including metallurgy, processing, and determination of rare metals. Additionally, it showcases the application of rare metals in advanced materials such as superconductors, semiconductors, composites, and ceramics.