Advantageous Functional Integration of Adsorption‐Intercalation‐Conversion Hybrid Mechanisms in 3D Flexible Nb2O5@Hard Carbon@MoS2@Soft Carbon Fiber Paper Anodes for Ultrafast and Super‐Stable Sodium Storage

Deng, Qinglin; Chen, Feng; Liu, Si; Bayaguud, Aruuhan; Feng, Yuezhan; Zhang, Zhibo; Fu, Yanpeng; Yu, Yan; Zhu, Changbao

doi:10.1002/adfm.201908665

Cited by 81 publications

(50 citation statements)

References 54 publications

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“…MoS 2 with a large interlayer spacing has been extensively explored in rechargeable energy storage devices with the organic electrolytes. [ 154 ] However, MoS 2 has barely been used in an aqueous battery system because of its hydrophobicity and relatively smaller interlayer spacing, when inserting and extracting hydrated cations. [ 155 ] To apply MoS 2 ‐based compound as the anode for APIBs, hydrated potassium ion intercalated MoS 2 (K 0.38 (H 2 O) 0.82 MoS 2 , denoted as KMS) with an expanded interlayer spacing of 9.3 Å was prepared.…”

Section: Aqueous Potassium Ion Batteriesmentioning

confidence: 99%

Advanced Post‐Potassium‐Ion Batteries as Emerging Potassium‐Based Alternatives for Energy Storage

Yao

Zhu

2020

Adv Funct Materials

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Potassium-based batteries are considered attractive alternatives for lithium ion batteries, particularly for large-scale energy storage, owing to their economic value and abundance. There have been significant achievements in the extensive investigations of potassium-ion batteries (PIBs). However, post-potassium-ion batteries (post-PIBs), including potassium-sulfur (K-S), potassium-selenium (K-Se), all-solid-state potassium-ion batteries (ASSPIBs), and aqueous potassium-ion batteries (APIBs) along with their respective advantages such as higher energy density, better safety, lower costs, and higher power density, are still in the initial stages of research and require further attention. Therefore, this review summarizes the recent progress, current challenges, and advancements in post-PIBs such as K-S/ Se batteries and ASSPIBs. Additionally, the challenges and solutions of using K metal in such systems are discussed. Thereafter, smart designs for electrodes and electrolytes, along with rational constructions for obtaining desirable APIBs are evaluated. Finally, the development trends, challenges, and prospects are estimated for advanced post-PIBs. This review provides instructive guidelines for research and development of promising potassiumbased systems, in particular, further application of post-PIBs.

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Section: Aqueous Potassium Ion Batteriesmentioning

confidence: 99%

Advanced Post‐Potassium‐Ion Batteries as Emerging Potassium‐Based Alternatives for Energy Storage

Yao

Zhu

2020

Adv Funct Materials

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“…[71] Currently, this model has been supported by the work of many different groups. [72][73][74] Based on the ex situ X-ray diffraction, a reversible expansion/contraction of the (002) d-spacing in the plateau region can be detected, which clearly supports Na intercalation into the graphene layers. To reveal further details of this mechanism, Cao et al prepared a series of cellulose-based hard carbons with different concentrations of defects through extending ball-milling time and then investigated their performance in dependence of the structure.…”

Section: Current Status Of Fundamental Sodium Storage Mechanismmentioning

confidence: 76%

A Reanalysis of the Diverse Sodium Species in Carbon Anodes for Sodium Ion Batteries: A Thermodynamic View

Tian

Zhu²,

et al. 2021

Advanced Energy Materials

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Sodium ion batteries (SIBs) have been extensively investigated as a promising alternative for lithium ion batteries (LIBs) owing to the readily available character of sodium, lower costs of battery systems, as well as a similar working mechanism to LIBs. However, this view turns out to be oversimplified; countless reviews especially in the last years contradict each other, and it is still a challenging task to design highly performing electrode materials for SIBs. Due to the larger radius of Na+, its lower covalent character, and the resulting changes in intercalation chemistry, sodium is far from being only the bigger relative of lithium, and the difference leads to altered loading curves, and the occurrence of a multiplicity of binding sites. An in‐depth holistic understanding of the sodium storage mechanisms is needed to resolve the controversial discussions in the research community, ideally starting with unquestionable thermodynamic points. Here, taking a tutorial perspective, first the recent discussions on the storage mechanism of sodium in carbons are reviewed from an unorthodox viewpoint, namely addressing sodium uptake as a multifaceted adsorption process with an added electrochemical binding potential. This model is based on literature data. Afterward, challenges and perspectives revealed by such a model are discussed.

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“…As we know, the CV curves can be divided into contributions from pseudocapacitive process and diffusion-controlled process according to the law: i(V) = k 1 v + k 2 v 1/2 , in which k 1 v and k 2 v 1/2 stand for capacitance and diffusion, respectively. [24,25] v is the sweep speed (mV/s), and k1 and k2 are tunable values. As displayed in Figure 5b, the capacitive contribution (blue region) for the ZnSe/C hollow polyhedrons electrode is 66 % at 0.5 mV s À 1 .…”

Section: Resultsmentioning

confidence: 99%

Fabrication of ZnSe/C Hollow Polyhedrons for Lithium Storage

Yuan

et al. 2021

Chemistry A European J

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ZnSe has got extensive attention for high-performance LIBs anode due to its remarkable theoretical capacity and environmental friendliness. Nevertheless, the large volume variation for the ZnSe in the discharge/charge processes brings about rapid capacity fading and poor rate performance. Herein, ZnSe/C hollow polyhedrons are successfully synthesized by selenization of zeolitic imidazolate framework-8 (ZIF-8) with resorcinol-formaldehyde (RF) coating. The protection of C layer derived from RF coating layer and Ostwald ripening during the process of selenization play important roles in promoting formation of ZnSe/C hollow polyhedrons. The ZnSe/C hollow polyhedrons exhibit good rate performance and long-term cycle stability (345 mAh g À 1 up to 1000 cycles at 1 A g À 1 ) for lithium ion batteries (LIBs) anode. The improved electrochemical performance is benefit from the unique ZnSe/C hollow structure, in which the hollow structure can effectively avoid terrible volume expansion, and the thin ZnSe/C shell can not only provide adequate diffusion paths of lithium ions and but also enhance the electronic conductivity.

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Advantageous Functional Integration of Adsorption‐Intercalation‐Conversion Hybrid Mechanisms in 3D Flexible Nb₂O₅@Hard Carbon@MoS₂@Soft Carbon Fiber Paper Anodes for Ultrafast and Super‐Stable Sodium Storage

Cited by 81 publications

References 54 publications

Advanced Post‐Potassium‐Ion Batteries as Emerging Potassium‐Based Alternatives for Energy Storage

Advanced Post‐Potassium‐Ion Batteries as Emerging Potassium‐Based Alternatives for Energy Storage

A Reanalysis of the Diverse Sodium Species in Carbon Anodes for Sodium Ion Batteries: A Thermodynamic View

Fabrication of ZnSe/C Hollow Polyhedrons for Lithium Storage

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