Metal‐Organic Frameworks Functionalized Separators for Lithium‐Sulfur Batteries

Chong, Yu-Liang; Zhao, Dongdong; Wang, Bing; Li, Feng; Li, Si‐Jun; Shao, Lan‐Xing; Tong, Xin; Du, Xuan; Hu, Cheng; Zhuang, Jin‐Liang

doi:10.1002/tcr.202200142

Cited by 12 publications

(2 citation statements)

References 143 publications

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“…In recent years, many researchers have employed the strategy of modified separators to promote the uniform deposition of Li + . The main materials used for separator modification include carbon-based materials [ 11 , 12 , 13 , 14 ], polymers [ 15 , 16 , 17 , 18 , 19 ], transition metal compounds [ 20 , 21 , 22 , 23 , 24 ], and metal organic frameworks (MOFs) [ 25 , 26 , 27 , 28 , 29 , 30 , 31 ]. MOFs are rich in open metal sites (OMSs) and can coordinate with anions [ 32 , 33 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

Long-Term Stable Cycling of Dendrite-Free Lithium Metal Batteries Using ZIF-90@PP Composite Separator

LYU,

Zhang,

Huang

et al. 2024

Nanomaterials

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Lithium metal batteries (LMBs) are anticipated to meet the demand for high energy density, but the growth of lithium dendrites seriously hinders its practical application. Herein, we constructed a kind of composite separator (ZIF-90@PP) consisting of zeolite imidazole framework-90 (ZIF-90) and polypropylene (PP) to promote the uniform deposition of Li+ and inhibit the growth of lithium dendrites. The aldehyde groups interacting with TFSI− and the nitrogen-containing negative groups attracting Li+ of ZIF-90 can facilitate the dissociation of LiTFSI to release more Li+, thus alleviating the influence of space charge near the electrode surface and accelerating the transfer of Li+. Not only does the excellent electrolyte wettability of ZIF-90 enhance the electrolyte retention capacity of the separator, but the orderly nano-channels in ZIF-90 also restrict the free migration of anions and homogenize the distribution of Li+. Consequently, the functional separator achieves a long-term stable Li plating/stripping cycling for over 780 h at 2 mA cm−2. Moreover, an impressive average coulombic efficiency of 98.67% at 0.5 C after 300 cycles is realized by Li || LFP full cells based on ZIF-90@PP with a capacity retention rate of 71.22%. The high-rate and long cycling performance of the modified Li || LFP cells further demonstrates the advantages of the ZIF-90@PP composite separator.

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Section: Introductionmentioning

confidence: 99%

Long-Term Stable Cycling of Dendrite-Free Lithium Metal Batteries Using ZIF-90@PP Composite Separator

LYU,

Zhang,

Huang

et al. 2024

Nanomaterials

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“…2600 Wh/kg) than the current commercial lithium-ion batteries (372 mA h g –1 , 200 Wh/kg). , However, the fast capacity fading and low sulfide utilization caused by the poor conductivity, complicated redox of sulfur, and the shuttling of soluble lithium polysulfide (LiPSs, Li 2 S x , 4 ≤ x ≤ 8) hinder their practical applications . Many efforts have been devoted to address these undesired issues by physical/chemical confinement and electrocatalysis of Li 2 S x (4 ≤ x ≤ 8), − such as carbon materials, − polymers, , metal compounds (oxides, sulfides, nitrides, and carbides), and metal–organic frameworks (MOFs). − However, improving the conductivity, the immobilization of S, and the conversion kinetics of Li 2 S x (4 ≤ x ≤ 8) in one electrode material at the same time has not been explored thus far, which is also of great significance for promoting the practical applications of Li–S batteries.…”

Section: Introductionmentioning

confidence: 99%

ZIF-67 on Sulfur-Functionalized Graphene Oxide for Lithium–Sulfur Batteries

Wang

et al. 2023

Inorg. Chem.

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How to overcome the problem of fast capacity fading and low sulfur utilization is the key to promote the practical applications of lithium–sulfur (Li–S) batteries. Based on the fact that sulfur-functionalized graphene oxide (GO-S) can avoid the loss of sulfur/polysulfides through the strong C–S interaction, and the zeolitic imidazolate framework (ZIF-67) can capture sulfur and catalyze lithium polysulfide (Li2S x , 4 ≤ x ≤ 8), the combination of ZIF-S (ZIF-67 after combining with sulfur) with GO-S can be expected to be an excellent electrode material for Li–S batteries due to the synergistic effect. Herein, ZIF-S@GO-S (n) nanocomposites (n = 1, 2, and 3 for the mass ratio of ZIF-67/GO of 4:1, 6:1, and 8:1, respectively) as the cathode materials in Li–S batteries were successfully fabricated, and ZIF-S@GO-S (2) showed better electrochemical performances and cycle stability with a high specific capacity of 1529.5 mA h g–1 at the initial cycle and 792 mA h g–1 after 500 cycles at 0.1 C (1 C = 1675 mA h g–1). The fact that ZIF-S@GO-S (n) can simultaneously improve the conductivity and utilization of S (C–S···S8 and C–S···S x Li2) and the conversion kinetics of Li2S x (4 ≤ x ≤ 8) provides a new avenue for designing and fabricating promising cathodes for high-performance Li–S batteries.

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Solutions to the Challenges of Lithium–Sulfur Batteries by Carbon Nanotubes

Shearer

et al. 2023

Advanced Sustainable Systems

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The continuously increasing demands for energy storage devices for portable electronics and electric vehicles have aroused massive research interest in developing lithium–sulfur batteries (LSBs) with high energy density and long‐term stability. Carbon nanotubes (CNTs), possessing numerous superior properties, are integrated into various components of LSBs for performance improvement. Nevertheless, a systematic and insightful issue‐based study of their inherent roles in addressing the practical challenges of LSBs is lacking. There is a growing consensus that CNTs do not directly contribute to the specific capacity (i.e., being involved in the redox reactions with electron loss/gain), while their auxiliary roles, such as providing a conductive and mechanically reinforced framework for active materials, are of prime significance in regulating the electrochemical reaction, charge transport, and mass transfer in the system. In this paper, after briefly introducing the working principles of LSBs and the promising applicability of CNTs, current challenges in various components of LSBs are discussed with the corresponding CNT‐based solutions, followed by an evaluation of the potential for commercializing CNT‐involved LSBs. Finally, some future research directions are provided to improve the device performance further.

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Metal‐Organic Frameworks Functionalized Separators for Lithium‐Sulfur Batteries

Cited by 12 publications

References 143 publications

Long-Term Stable Cycling of Dendrite-Free Lithium Metal Batteries Using ZIF-90@PP Composite Separator

Long-Term Stable Cycling of Dendrite-Free Lithium Metal Batteries Using ZIF-90@PP Composite Separator

ZIF-67 on Sulfur-Functionalized Graphene Oxide for Lithium–Sulfur Batteries

Solutions to the Challenges of Lithium–Sulfur Batteries by Carbon Nanotubes

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