Dense monolithic MOF and carbon nanotube hybrid with enhanced volumetric and areal capacities for lithium–sulfur battery

Zhang, Hui; Zhao, Wenqi; Wu, Yizeng; Wang, Yunsong; Zou, Mingchu; A, Cao

doi:10.1039/c9ta00485h

Cited by 75 publications

(49 citation statements)

References 28 publications

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“…Constructing flexible and highly conductive MOF composites is capable of overcoming these hurdles. There have been many studies that introduce CNTs, [352][353][354] rGO, [355] polymers, [356] and other carbon materials [357] to MOFs to produce composite materials. For instance, Mao et al designed a foldable interpenetrated MOF/CNT thin film as binder-free and flexible host.…”

Section: Mof Compositesmentioning

confidence: 99%

Host Materials Anchoring Polysulfides in Li–S Batteries Reviewed

Zhou

Danilov

Eichel

et al. 2020

Advanced Energy Materials

309

192

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TU/e), the Netherlands. Currently, he is conducting his research at Forschungszentrum Jülich (Germany). His research interests focus on the design and development of effective strategies for high-performance Li-S batteries. Dmitri L. Danilov, Ph.D., has a background in physics and mathematics and obtained his M.Sc. at the Saint-Petersburg University in 1993. In 2003, he got Ph.D. degree from the University of Tilburg.In 2002, he joined Eurandom institute in Eindhoven University of Technology, being involved in various national and international research projects. His current research interests include mathematical modeling of complex electrochemical systems, including Li-ion and NiMH batteries, ageing and degradation processes, thin-film batteries, and advanced characterization methods. Starting 2017, he joined IEK-9 in the Forschungszentrum Jülich.

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Section: Mof Compositesmentioning

confidence: 99%

Host Materials Anchoring Polysulfides in Li–S Batteries Reviewed

Zhou

Danilov

Eichel

et al. 2020

Advanced Energy Materials

309

192

View full text Add to dashboard Cite

show abstract

“…[ 1–3 ] Group XVI elements, especially sulfur (S) and oxygen (O) are being extensively studied owing to their high theoretical energy densities (2800 Wh L −1 for Li–S and 1520 Wh L −1 for Li–air batteries in a basic electrolyte) compared with conventional cathode materials (e.g., 1080 Wh L −1 for graphite–LiFePO 4 ). [ 4–6 ] However, both S and O have low electrical conductivities and poor cyclic stabilities. [ 5,7–9 ]…”

Section: Introductionmentioning

confidence: 99%

In Batteria Electrochemical Polymerization to Form a Protective Conducting Layer on Se/C Cathodes for High‐Performance Li–Se Batteries

Lee

et al. 2020

Adv Funct Materials

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The lithium–selenium (Li–Se) battery is a promising energy storage system for portable devices owing to its high energy density (2528 Wh L−1) and electrical conductivity (10−3 S m−1). The main issue with Li–Se batteries is their poor stability originating from the dissolution of Se‐containing compounds. Hence, many studies have focused on the immobilization of Se using protective layers prepared via ex situ or in situ approaches. However, these strategies are too complicated and costly for practical use. Herein, a facile in batteria electrochemical treatment to form a protective conductive layer on a Se‐based cathode is introduced. Specifically, aniline monomers added to an assembled Li–Se cell are polymerized into electrically conductive polyaniline. The treated Li–Se cell exhibits 40% higher capacity retention compared to untreated one. Moreover, at a high rate (4 C), the treated cell maintains a capacity of 1538 mAh cm−3, whereas the untreated cell exhibits no capacity. The enhanced cyclic stability and rate capability are attributed to the electrochemical formation of a uniform, ultrathin (≤10 nm) polyaniline layer, to confine lithium polyselenides with its C−N bonds, and improve ionic conductivity by self‐doping with lithium salts to form delocalized polaron lattice in the polyaniline.

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“…After 200 cycles, it still maintained a high capacity of 500 mAh•g −1 , and the corresponding coulombic efficiency was about 100%. This also shows that the "Core-shell" composite formed by indium oxide and CPM-5-C-600@S buffer the volume expansion, which increases the structure stability of the positive material and elevates the constancy of the battery in the process of circulation under high current [35]. In order to prove that the conductivity of carbonized CPM-5 was significantly improved, we studied the rate performance of the battery.…”

Section: Electrochemical Performancementioning

confidence: 99%

The Application of Indium Oxide@CPM-5-C-600 Composite Material Derived from MOF in Cathode Material of Lithium Sulfur Batteries

et al. 2020

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Due to the “shuttle effect”, the cycle performance of lithium sulfur (Li-S) battery is poor and the capacity decays rapidly. Replacing lithium-ion battery is the maximum problem to be overcome. In order to solve this problem, we use a cage like microporous MOF(CPM-5) as a carbon source, which is carbonized at high temperature to get a micro-mesoporous carbon composite material. In addition, indium oxide particles formed during carbonization are deposited on CPM-5 structure, forming a simple core-shell structure CPM-5-C-600. When it is used as the cathode of Li-S battery, the small molecule sulfide can be confined in the micropores, while the existence of large pore size mesopores can provide a channel for the transmission of lithium ions, so as to improve the conductivity of the material and the rate performance of the battery. After 100 cycles, the specific capacity of the battery can be still maintained at 650 mA h·g−1 and the Coulombic efficiency is close to 100%. When the rate goes up to 2 C, the first discharge capacity not only can reach 1400 mA h·g−1, but also still provides 500 mA h·g−1 after 200 cycles, showing excellent rate performance.

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Dense monolithic MOF and carbon nanotube hybrid with enhanced volumetric and areal capacities for lithium–sulfur battery

Abstract: Densely packed metal–organic framework (MOF) and carbon nanotube (CNT) hybrid materials with tailored hierarchical porous structures are prepared by in situ growth and room temperature drying/shrinking for high-performance compact energy storage systems.

Cited by 75 publications

References 28 publications

Host Materials Anchoring Polysulfides in Li–S Batteries Reviewed

Host Materials Anchoring Polysulfides in Li–S Batteries Reviewed

In Batteria Electrochemical Polymerization to Form a Protective Conducting Layer on Se/C Cathodes for High‐Performance Li–Se Batteries

The Application of Indium Oxide@CPM-5-C-600 Composite Material Derived from MOF in Cathode Material of Lithium Sulfur Batteries

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