The Charge Storage Mechanism and Durable Operation in Olivine–Lithium–Iron–Phosphate for Mn‐based Hybrid Batteries
Abstract Aqueous batteries have garnered considerable attention because of their cost‐effectiveness, sufficient capacity, and non‐flammable water‐based electrolytes. Among these, manganese batteries are particularly attractive owing to their stability, abundance, affordability, and higher energy den...
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Wiley
2025-05-01
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| Online Access: | https://doi.org/10.1002/advs.202502866 |
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| author | Jangwook Pyun Hyungjin Lee Hyeonjun Lee Sangki Lee Seunghyeop Baek Hyeju Kwon Seung‐Tae Hong Munseok S. Chae |
| author_facet | Jangwook Pyun Hyungjin Lee Hyeonjun Lee Sangki Lee Seunghyeop Baek Hyeju Kwon Seung‐Tae Hong Munseok S. Chae |
| author_sort | Jangwook Pyun |
| collection | DOAJ |
| description | Abstract Aqueous batteries have garnered considerable attention because of their cost‐effectiveness, sufficient capacity, and non‐flammable water‐based electrolytes. Among these, manganese batteries are particularly attractive owing to their stability, abundance, affordability, and higher energy density. With a lower redox potential (Mn: −1.19 V vs SHE) than zinc (Zn: −0.76 V vs SHE), manganese batteries theoretically offer superior energy density over traditional zinc‐based systems. In this study, LiFePO4 is introduced as a cathode material in aqueous manganese‐based hybrid batteries for the first time. Through electrochemical characterization and advanced structural and spectroscopic analyses, the charge storage mechanisms of protons in to the FePO4 are elucidated. Cation diffusion pathways are also investigated via diffusion barrier calculations. This study presents manganese hybrid batteries with a good stability and capacity of ≈109.2 mAh g−1 at 40 mA g−1, alongside a cycle retention of 42.1% after 3000 cycles at 320 mA g−1. Furthermore, an Mn2+/Li+ hybrid battery, achieving ≈1.6 V and superior durability (81.5% @ 1000th), is proposed. |
| format | Article |
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| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley |
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| series | Advanced Science |
| spelling | doaj-art-af1c9cfdad7143d8a64c01357aae335b2025-08-20T03:47:33ZengWileyAdvanced Science2198-38442025-05-011219n/an/a10.1002/advs.202502866The Charge Storage Mechanism and Durable Operation in Olivine–Lithium–Iron–Phosphate for Mn‐based Hybrid BatteriesJangwook Pyun0Hyungjin Lee1Hyeonjun Lee2Sangki Lee3Seunghyeop Baek4Hyeju Kwon5Seung‐Tae Hong6Munseok S. Chae7Department of Nanotechnology Engineering Pukyong National University Busan 48547 Republic of KoreaDepartment of Energy Science and Engineering DGIST Daegu 42988 Republic of KoreaDepartment of Nanotechnology Engineering Pukyong National University Busan 48547 Republic of KoreaDepartment of Nanotechnology Engineering Pukyong National University Busan 48547 Republic of KoreaDepartment of Nanotechnology Engineering Pukyong National University Busan 48547 Republic of KoreaDepartment of Nanotechnology Engineering Pukyong National University Busan 48547 Republic of KoreaDepartment of Energy Science and Engineering DGIST Daegu 42988 Republic of KoreaDepartment of Nanotechnology Engineering Pukyong National University Busan 48547 Republic of KoreaAbstract Aqueous batteries have garnered considerable attention because of their cost‐effectiveness, sufficient capacity, and non‐flammable water‐based electrolytes. Among these, manganese batteries are particularly attractive owing to their stability, abundance, affordability, and higher energy density. With a lower redox potential (Mn: −1.19 V vs SHE) than zinc (Zn: −0.76 V vs SHE), manganese batteries theoretically offer superior energy density over traditional zinc‐based systems. In this study, LiFePO4 is introduced as a cathode material in aqueous manganese‐based hybrid batteries for the first time. Through electrochemical characterization and advanced structural and spectroscopic analyses, the charge storage mechanisms of protons in to the FePO4 are elucidated. Cation diffusion pathways are also investigated via diffusion barrier calculations. This study presents manganese hybrid batteries with a good stability and capacity of ≈109.2 mAh g−1 at 40 mA g−1, alongside a cycle retention of 42.1% after 3000 cycles at 320 mA g−1. Furthermore, an Mn2+/Li+ hybrid battery, achieving ≈1.6 V and superior durability (81.5% @ 1000th), is proposed.https://doi.org/10.1002/advs.202502866aqueous batteryaqueous electrolytehybrid ion batteryLiFePO4manganese hybrid batteries |
| spellingShingle | Jangwook Pyun Hyungjin Lee Hyeonjun Lee Sangki Lee Seunghyeop Baek Hyeju Kwon Seung‐Tae Hong Munseok S. Chae The Charge Storage Mechanism and Durable Operation in Olivine–Lithium–Iron–Phosphate for Mn‐based Hybrid Batteries Advanced Science aqueous battery aqueous electrolyte hybrid ion battery LiFePO4 manganese hybrid batteries |
| title | The Charge Storage Mechanism and Durable Operation in Olivine–Lithium–Iron–Phosphate for Mn‐based Hybrid Batteries |
| title_full | The Charge Storage Mechanism and Durable Operation in Olivine–Lithium–Iron–Phosphate for Mn‐based Hybrid Batteries |
| title_fullStr | The Charge Storage Mechanism and Durable Operation in Olivine–Lithium–Iron–Phosphate for Mn‐based Hybrid Batteries |
| title_full_unstemmed | The Charge Storage Mechanism and Durable Operation in Olivine–Lithium–Iron–Phosphate for Mn‐based Hybrid Batteries |
| title_short | The Charge Storage Mechanism and Durable Operation in Olivine–Lithium–Iron–Phosphate for Mn‐based Hybrid Batteries |
| title_sort | charge storage mechanism and durable operation in olivine lithium iron phosphate for mn based hybrid batteries |
| topic | aqueous battery aqueous electrolyte hybrid ion battery LiFePO4 manganese hybrid batteries |
| url | https://doi.org/10.1002/advs.202502866 |
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