Journal of Energy Storage, Год журнала: 2024, Номер 99, С. 113395 - 113395
Опубликована: Авг. 20, 2024
Язык: Английский
Journal of Energy Storage, Год журнала: 2024, Номер 99, С. 113395 - 113395
Опубликована: Авг. 20, 2024
Язык: Английский
Chemical Engineering Journal, Год журнала: 2023, Номер 468, С. 143706 - 143706
Опубликована: Май 24, 2023
Язык: Английский
Процитировано
170Advanced Materials, Год журнала: 2023, Номер 35(41)
Опубликована: Авг. 7, 2023
Layer-structured bismuth (Bi) is an attractive anode for Na-ion and K-ion batteries due to its large volumetric capacity suitable redox potentials. However, the cycling stability rate capability of Bi are restricted by volume expansion sluggish Na/K-storage kinetics. Herein, a structural dimensionality reduction strategy proposed developed converting 2D-layer-structured into quasi-1D structured NiBi3 with enhanced reaction kinetics reversibility realize high-rate stable performance Na/K-ion storage. As proof concept, intermetallic low formation energy, metallic conductivity, 3D diffusion pathways delivers outstanding retention 94.1% (332 mAh g-1 ) after 15 000 cycles storage, high initial coulombic efficiency 93.4% improved Moreover, investigations on highly reversible mechanisms cycling-driven morphology reconstruction further reveal origins accommodation expansion. The finding this work provides new high-performance design manipulation reconstruction.
Язык: Английский
Процитировано
80Advanced Energy Materials, Год журнала: 2023, Номер 13(25)
Опубликована: Май 17, 2023
Abstract Alloying‐type bismuth with high volumetric capacity has emerged as a promising anode for sodium‐ion batteries but suffers from large volume expansion and continuous pulverization. Herein, coordination constraint strategy is proposed, that is, chemically confining atomic Bi in an intercalation host framework via reconstruction‐favorable linear bonds, enabling novel quasi‐topological mechanism. Specifically, micron‐sized 0.67 NbS 2 synthesized, which the atom linearly coordinated two S atoms interlayer of . The robust Nb−S provides fast ion/electron diffusion channels buffers Na + insertion, endowing lower energy barrier (0.141 vs 0.504 eV Bi). In situ ex characterizations reveal alloys solid‐solution process constrained by reconstructed Bi−S bonds after dealloying, realizing complete recovery crystalline phase to avoid migration aggregation Bi. Accordingly, delivers reversible 325 mAh g −1 at 1 C extraordinary ultrahigh‐rate stability 226 100 over 25 000 cycles. proposed mechanism induced mode modulation expected be conducive practical electrode design fast‐charging batteries.
Язык: Английский
Процитировано
70Advanced Energy Materials, Год журнала: 2024, Номер 14(22)
Опубликована: Март 19, 2024
Abstract Micro‐sized bismuth (Bi) is recognized for its high volumetric capacity and suitable working potential, making it a promising anode candidate sodium‐ion batteries (SIBs). However, substantial volume changes slow reaction kinetics during cycling detrimentally affects the SIB performance. Theoretical prediction uncovers previously unexplored favorable attribute that bonding between nitrogen within carbon coating Bi atoms facilitates Na + ingress into bulk, significantly enhancing Bi‐Na alloying reactions, mitigating expansion, preventing Na‐dendrite formation. Experimentally, study innovatively engineers flower‐like micro‐sized encapsulated an elastic, nitrogen‐doped framework (FBi@NC) as efficient SIBs. This design enables FBi@NC achieving tap density of 2.86 g cm −3 delivering remarkable 1100 mAh at 1 mA − 2 . It also exhibits exceptional rate capability (368.2 h −1 30 A ) super durable cyclability (10 000 cycles with 318.8 5 , retaining 82% capacity). Full cells 3 V (PO 4 cathodes demonstrate superior performances. Crucially, this elucidates underlying ‐storage mechanisms contributory factors to performance enhancement, providing vital insights development high‐energy stable
Язык: Английский
Процитировано
53Advanced Functional Materials, Год журнала: 2023, Номер 33(52)
Опубликована: Сен. 13, 2023
Abstract Bismuth (Bi)‐based materials merit high theoretical volumetric specific capacity (3800 mAh mL⁻ 1 ) but suffer from huge volume variations and sluggish reaction kinetics during cycling. Herein, the optimal framework of Bi/Bi 2 O 3 nanodots enriched in suitable outer amorphous carbon sheets (Bi/Bi NDs@CSs) is first proposed to alleviate accelerate stable charge transport boost K + storage performance. The introduction proper Bi not only provides an efficient adsorption path, also effectively buffers changes via conversion reaction. Accordingly, as‐prepared anode exhibits a remarkable rate capability (149.3 g −1 at 60 A , 42% retention with 120‐fold current‐density increase) extraordinary durability (1800 cycles 5.0 95% retention), among best cycling performance date potassium ion batteries (PIBs) anodes. Theoretical calculations reveal feasible structures NDs@CSs double protection are conducive enhance transfer efficiency electrochemical Substantial situ / ex characterizations finite element simulation further unveil reversibility robust mechanical behavior NDs@CSs, favorable for reinforcement structural stability. This study new insights into developing high‐performance durable Bi‐based anodes PIBs.
Язык: Английский
Процитировано
48Advanced Science, Год журнала: 2023, Номер 11(1)
Опубликована: Ноя. 8, 2023
Atomic layer deposition (ALD) has become the most widely used thin-film technique in various fields due to its unique advantages, such as self-terminating growth, precise thickness control, and excellent quality. In energy storage domain, ALD shown great potential for supercapacitors (SCs) by enabling construction surface engineering of novel electrode materials. This review aims present a comprehensive outlook on development, achievements, design advanced electrodes involving application realizing high-performance SCs date, organized several sections this paper. Specifically, focuses understanding influence parameters electrochemical performance discusses nanostructured electrochemically active materials templates SCs. It examines highlights ALD's role passivating creating 3D nanoarchitectures. The relationship between synthesis procedures SC properties is analyzed guide future research preparing applications. Finally, it concluded suggesting directions scope development further leverage advantages fabricating new harness unexplored opportunities fabrication advanced-generation
Язык: Английский
Процитировано
46Journal of Energy Chemistry, Год журнала: 2024, Номер 92, С. 548 - 571
Опубликована: Янв. 20, 2024
Язык: Английский
Процитировано
40Rare Metals, Год журнала: 2024, Номер 43(4), С. 1599 - 1609
Опубликована: Янв. 13, 2024
Язык: Английский
Процитировано
26Journal of Energy Storage, Год журнала: 2024, Номер 83, С. 110613 - 110613
Опубликована: Фев. 1, 2024
Язык: Английский
Процитировано
23Journal of the American Chemical Society, Год журнала: 2025, Номер unknown
Опубликована: Янв. 14, 2025
Advancements in the development of fast-charging and long-lasting microstructured alloying anodes with high volumetric capacities are essential for enhancing operational efficiency sodium-ion batteries (SIBs). These anodes, however, face challenges such as declined cyclability rate capability, primarily due to mechanical degradation reduced by significant changes (over 252%) slow kinetics storage. Herein, we introduce a novel anode design featuring densely packed bismuth (Bi) embedded within highly conductive carbon microspheres overcome aforementioned challenges. Remarkably, loading Bi tap density 2.59 g cm–3 possesses strength exceeding 590 MPa limits volume swelling only 10.9% post-sodiation. This demonstrates capacity (908.3 mAh cm–3), ultrafast chargeability (200 A g–1, full charge/discharge just 5.5 s), outstanding over 12,000 cycles maintains exceptional cycling stability even at −30 °C. The cell paired Na3V2(PO4)3 cathode retains 80% after 600 36 C, demonstrating remarkable capability 126 C (full 28.6 s). Our comprehensive experimental evaluations chemo-mechanical simulations shed light on mechanisms underpinning anode's superior performance. marks advancement durable high-performance SIBs.
Язык: Английский
Процитировано
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