Small, Год журнала: 2024, Номер unknown
Опубликована: Сен. 23, 2024
Effectively addressing the trade-off between fast charging kinetics and long cycle life of aqueous zinc ion batteries (AZIBs) has proven challenging due to JahnTeller distortion high lattice strain induced by inserted Zn
Язык: Английский
Nano Energy, Год журнала: 2025, Номер unknown, С. 110740 - 110740
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
4
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 16, 2025
Abstract The wide band gap of δ‐MnO 2 and the restricted regulation p‐band center ( p ) active oxygen atoms hinder electron conduction ion diffusion during zinc storage. Heteroatom doping has proven effective in improving However, solely through cation is comparatively constrained. Herein, a cation/anion co‐doping strategy proposed to simultaneously adjust d‐band d Mn by establishing Mn–O–Ca Mn─N bonds Ca/N co‐doped (Ca/N‐MnO ). This effect induces shift predominant stretching vibration mode Mn─O [MnO 6 ] octahedra, resulting decreased d/p‐band proximity (Δ d‐p 1.688 eV (1.750 for Consequently, both adsorption capacity adsorption/desorption rates Zn 2+ /H + ions are enhanced. Theoretical calculations further reveal that significantly triggers optimization gap, migration energy barrier, energy. As result, Ca/N‐MnO achieves remarkable reversible 192.7 mAh g −1 at 1.0 A after 200 cycles exceptional rate performance. Furthermore, enhancement mechanisms thoroughly elucidated. synergistic offers significant potential efficient storage applications.
Язык: Английский
Процитировано
4
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Фев. 12, 2025
Improving electrical conductivity and increasing the active site are important directions for improving technology of manganese-based cathode materials zinc ion batteries (ZIBs). In this paper, cobalt-doped oxygen-vacancy coupled MnO2 nanorods (Vo-CMO) were prepared by defect engineering an doping strategy as rechargeable ZIBs. Oxygen vacancies can increase density material provide more migration paths ions, thereby electrochemical activity specific capacity. The introduction cobalt adjust electronic structure manganese oxide, change Fermi level material, promote generation transmission charge carriers, transfer rate material. synergistic effect among them improve diffusion kinetics capacity cycle stability Vo-CMO has better Zn2+ storage 295.6 mAh·g–1 at 0.1 A·g–1. reaction mechanism was H+/Zn2+ coinsertion through galvanostatic current intermittent titration (GITT) ex situ experiments. addition, assembled flexible quasi-solid ZIB. oxygen vacancy a new way to develop water-based
Язык: Английский
Процитировано
3
Carbon Neutralization, Год журнала: 2024, Номер 4(1)
Опубликована: Ноя. 24, 2024
ABSTRACT In the pursuit of advanced energy storage technologies that promote sustainable solutions, zinc‐ion batteries (ZIBs) have emerged as a promising alternative to lithium‐ion due their abundance, safety, and environmental advantages. However, failure mechanisms ZIBs under extreme temperatures are still not fully understood, presenting significant challenges development commercialization. Therefore, innovative strategies essential enhance adaptability temperature extremes. this review, we first explore thermodynamic kinetic aspects performance degradation temperatures, focusing on key factors such ion diffusion redox processes at electrode interfaces. We then comprehensively summarize discuss existing approaches for various electrolyte types, including aqueous, nonaqueous, solid state. Finally, highlight future prospects operating conditions. The insights presented in review expected accelerate advancement facilitate practical implementation large‐scale systems.
Язык: Английский
Процитировано
14
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Дек. 11, 2024
The proton (H
Язык: Английский
Процитировано
8
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 2, 2025
Abstract MnO 2 ‐based cathode aqueous rechargeable zinc‐ion batteries (ZIBs) have favorable sustainability characteristics and are considered potential candidates for low‐cost effective, high‐safety energy storage systems. Nevertheless, the development of them has been hampered by unstable electrode structures ambiguous charge mechanisms. Herein, role doping Fe 3+ Co 2+ into δ‐MnO materials (FMO, CMO) is comprehensively probed working mechanism Zn//FMO, Zn//CMO studied using in situ ex characterization, electrochemical analysis, theoretical calculations. Metal cations can partially replace Mn to form M─O bonds enhance structural stability as well redox activity . It found that effectively modulates interaction between Zn /H + structure inhibits formation ZnMn O 4 (ZMO) by‐products confers fast diffusion ability The reactions FMO CMO mainly via H /Zn intercalation/deintercalation accompanied OTF‐base‐like double hydroxide x (OTF) y (OH) 2x‐y ‐nH (Z‐LDH) deposition/dissolution. This research enriches fundamental comprehension ZIBs reveals way modify electrodes performance enhancement.
Язык: Английский
Процитировано
1
Small, Год журнала: 2025, Номер unknown
Опубликована: Янв. 2, 2025
Intrinsic low conductivity, poor structural stability, and narrow interlayer spacing limit the development of MnO
Язык: Английский
Процитировано
1
Energy storage materials, Год журнала: 2024, Номер 73, С. 103812 - 103812
Опубликована: Окт. 11, 2024
Язык: Английский
Процитировано
6
ACS Applied Polymer Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 20, 2025
Язык: Английский
Процитировано
0
Journal of Power Sources, Год журнала: 2025, Номер 641, С. 236835 - 236835
Опубликована: Март 21, 2025
Язык: Английский
Процитировано
0